TY  - JOUR
AU  - Repić, Branislav
AU  - Mladenović, Milica
AU  - Marinković, Ana
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12772
AB  - Combustion of coals and biomass in boiler furnaces leads to formation of fireside deposits on irradiated and convective surfaces. This problem is not a new one, but it became one of the main operational problems in boilers using low rank coal and some sort of biomass. In the paper presented are the results of research of ash deposit processes in laboratory conditions. An experimental furnace was used for these purposes. The experiments were performed on a tubular experimental furnace which ensures appropriate temperature and mass transfer conditions for physical and chemical transformations of the mineral matter of fuel as in real conditions. The main working parameters can be varied in wide ranges. The influence of grinding fineness, excess air and wall surface temperature was analysed. Also, an ash related problems during coal and biomass combustion was considered. Key empirical correlations for slagging and fouling were tested. Two types of Serbian coals (Kolubara and Kosovo) and several biomasses were analysed. It was shown that many sorts of biomass and Kosovo coal have a great propensity to slagging and fouling.
T2  - Thermal Science
T1  - Investigation of ash deposit formation on heat transfer surfaces of boilers using coals and biomass
VL  - 23
IS  - Suppl. 5
SP  - 1575
EP  - 1586
DO  - 10.2298/tsci180413285r
ER  - 

@article{
author = "Repić, Branislav and Mladenović, Milica and Marinković, Ana",
year = "2019",
abstract = "Combustion of coals and biomass in boiler furnaces leads to formation of fireside deposits on irradiated and convective surfaces. This problem is not a new one, but it became one of the main operational problems in boilers using low rank coal and some sort of biomass. In the paper presented are the results of research of ash deposit processes in laboratory conditions. An experimental furnace was used for these purposes. The experiments were performed on a tubular experimental furnace which ensures appropriate temperature and mass transfer conditions for physical and chemical transformations of the mineral matter of fuel as in real conditions. The main working parameters can be varied in wide ranges. The influence of grinding fineness, excess air and wall surface temperature was analysed. Also, an ash related problems during coal and biomass combustion was considered. Key empirical correlations for slagging and fouling were tested. Two types of Serbian coals (Kolubara and Kosovo) and several biomasses were analysed. It was shown that many sorts of biomass and Kosovo coal have a great propensity to slagging and fouling.",
journal = "Thermal Science",
title = "Investigation of ash deposit formation on heat transfer surfaces of boilers using coals and biomass",
volume = "23",
number = "Suppl. 5",
pages = "1575-1586",
doi = "10.2298/tsci180413285r"
}

Repić, B., Mladenović, M.,& Marinković, A.. (2019). Investigation of ash deposit formation on heat transfer surfaces of boilers using coals and biomass. in Thermal Science, 23(Suppl. 5), 1575-1586.
https://doi.org/10.2298/tsci180413285r

Repić B, Mladenović M, Marinković A. Investigation of ash deposit formation on heat transfer surfaces of boilers using coals and biomass. in Thermal Science. 2019;23(Suppl. 5):1575-1586.
doi:10.2298/tsci180413285r .

Repić, Branislav, Mladenović, Milica, Marinković, Ana, "Investigation of ash deposit formation on heat transfer surfaces of boilers using coals and biomass" in Thermal Science, 23, no. Suppl. 5 (2019):1575-1586,
https://doi.org/10.2298/tsci180413285r . .

TY  - JOUR
AU  - Stefanović, Predrag Lj.
AU  - Cvetinović, Dejan
AU  - Marković, Zoran J.
AU  - Erić, Milić D.
AU  - Oka, Simeon N.
AU  - Repić, Branislav
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8981
AB  - Paper presents short review of research problems, applied methods for solving problems and main results obtained by the researchers in Laboratory for Ther-mal Engineering and Energy (LTE) of the "Vinca" Institute of Nuclear Sciences, Belgrade, Serbia dealing with pulverized coal combustion processes and tech-nologies for reduction of pollutions problems at thermal power plants in a period since 2000. The presented results were published in numerous studies realized for different users, Ph. D., Masters, and Specialist thesis, in international and domestic scientific journals and monographs, presented at numerous internation-al and domestic scientific conferences, etc. Presented research projects and re-sults of applied research projects realized at pulverized coal combustion thermal power plants clearly show that LTE team was involved in key activities of reha-bilitation and modernization, including implementation of best available technol-ogies for pollution reduction at thermal power plants, in the region of South East Europe.
T2  - Thermal Science
T1  - Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy: Part B
VL  - 23
IS  - Suppl. 5
SP  - 1611
EP  - 1626
DO  - 10.2298/TSCI19S5611R
ER  - 

@article{
author = "Stefanović, Predrag Lj. and Cvetinović, Dejan and Marković, Zoran J. and Erić, Milić D. and Oka, Simeon N. and Repić, Branislav",
year = "2019",
abstract = "Paper presents short review of research problems, applied methods for solving problems and main results obtained by the researchers in Laboratory for Ther-mal Engineering and Energy (LTE) of the "Vinca" Institute of Nuclear Sciences, Belgrade, Serbia dealing with pulverized coal combustion processes and tech-nologies for reduction of pollutions problems at thermal power plants in a period since 2000. The presented results were published in numerous studies realized for different users, Ph. D., Masters, and Specialist thesis, in international and domestic scientific journals and monographs, presented at numerous internation-al and domestic scientific conferences, etc. Presented research projects and re-sults of applied research projects realized at pulverized coal combustion thermal power plants clearly show that LTE team was involved in key activities of reha-bilitation and modernization, including implementation of best available technol-ogies for pollution reduction at thermal power plants, in the region of South East Europe.",
journal = "Thermal Science",
title = "Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy: Part B",
volume = "23",
number = "Suppl. 5",
pages = "1611-1626",
doi = "10.2298/TSCI19S5611R"
}

Stefanović, P. Lj., Cvetinović, D., Marković, Z. J., Erić, M. D., Oka, S. N.,& Repić, B.. (2019). Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy: Part B. in Thermal Science, 23(Suppl. 5), 1611-1626.
https://doi.org/10.2298/TSCI19S5611R

Stefanović PL, Cvetinović D, Marković ZJ, Erić MD, Oka SN, Repić B. Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy: Part B. in Thermal Science. 2019;23(Suppl. 5):1611-1626.
doi:10.2298/TSCI19S5611R .

Stefanović, Predrag Lj., Cvetinović, Dejan, Marković, Zoran J., Erić, Milić D., Oka, Simeon N., Repić, Branislav, "Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy: Part B" in Thermal Science, 23, no. Suppl. 5 (2019):1611-1626,
https://doi.org/10.2298/TSCI19S5611R . .

TY  - JOUR
AU  - Erić, Aleksandar
AU  - Nemoda, Stevan
AU  - Komatina, Mirko S.
AU  - Dakić, Dragoljub V.
AU  - Repić, Branislav
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8401
AB  - The paper presents results of experimental investigation performed in order to examine kinetics of loose biomass combustion in vertical tube reactor. The investigation conducted included continuous measurement of the fuel mass loss rate, with two biomass combustion models (piston and batch model) proposed, each relying on appropriate theoretical postulates. Results obtained indicated that piston combustion model had shown better agreement between theoretical and experimental data and was therefore used to further analyse effects of excess-air on the combustion kinetics, as well as associated effects of flue gas recirculation. Recirculation of cold flue gases is used to lower peak temperature inside the furnace, as well as to reduce a zone where ash melting problems may potentially occur. During the investigation performed, effects of flue gas recirculation on the combustion process were simulated by simultaneously injecting nitrogen and air flows into the furnace. This was deemed appropriate to simulate real-life conditions prevailing in the furnace with gas recirculation. Experiments were conducted on specially designed and constructed apparatus that enabled kinetic parameters to be determined for the combustion of different types of biomass. Results obtained have indicated that quantity of air affects kinetics of biomass combustion and that increased recirculation leads to reduced biomass reaction rate. The same conclusion was reached based on the results of experiments conducted with two different types of agro-biomass, namely wheat straw and corn stalks, which are most commonly used for energy generation. Results achieved are deemed particularly important when it comes to design of new plants that utilize cigarette type combustion system, but also for development of numerical models used to simulate combustion of biomass bales, with special emphasis placed on the impact of recirculation gases on the combustion kinetics. © 2018 Energy Institute
T2  - Journal of the Energy Institute
T1  - Experimental investigation on the kinetics of biomass combustion in vertical tube reactor
VL  - 92
IS  - 4
SP  - 1077
EP  - 1090
DO  - 10.1016/j.joei.2018.06.009
ER  - 

@article{
author = "Erić, Aleksandar and Nemoda, Stevan and Komatina, Mirko S. and Dakić, Dragoljub V. and Repić, Branislav",
year = "2019",
abstract = "The paper presents results of experimental investigation performed in order to examine kinetics of loose biomass combustion in vertical tube reactor. The investigation conducted included continuous measurement of the fuel mass loss rate, with two biomass combustion models (piston and batch model) proposed, each relying on appropriate theoretical postulates. Results obtained indicated that piston combustion model had shown better agreement between theoretical and experimental data and was therefore used to further analyse effects of excess-air on the combustion kinetics, as well as associated effects of flue gas recirculation. Recirculation of cold flue gases is used to lower peak temperature inside the furnace, as well as to reduce a zone where ash melting problems may potentially occur. During the investigation performed, effects of flue gas recirculation on the combustion process were simulated by simultaneously injecting nitrogen and air flows into the furnace. This was deemed appropriate to simulate real-life conditions prevailing in the furnace with gas recirculation. Experiments were conducted on specially designed and constructed apparatus that enabled kinetic parameters to be determined for the combustion of different types of biomass. Results obtained have indicated that quantity of air affects kinetics of biomass combustion and that increased recirculation leads to reduced biomass reaction rate. The same conclusion was reached based on the results of experiments conducted with two different types of agro-biomass, namely wheat straw and corn stalks, which are most commonly used for energy generation. Results achieved are deemed particularly important when it comes to design of new plants that utilize cigarette type combustion system, but also for development of numerical models used to simulate combustion of biomass bales, with special emphasis placed on the impact of recirculation gases on the combustion kinetics. © 2018 Energy Institute",
journal = "Journal of the Energy Institute",
title = "Experimental investigation on the kinetics of biomass combustion in vertical tube reactor",
volume = "92",
number = "4",
pages = "1077-1090",
doi = "10.1016/j.joei.2018.06.009"
}

Erić, A., Nemoda, S., Komatina, M. S., Dakić, D. V.,& Repić, B.. (2019). Experimental investigation on the kinetics of biomass combustion in vertical tube reactor. in Journal of the Energy Institute, 92(4), 1077-1090.
https://doi.org/10.1016/j.joei.2018.06.009

Erić A, Nemoda S, Komatina MS, Dakić DV, Repić B. Experimental investigation on the kinetics of biomass combustion in vertical tube reactor. in Journal of the Energy Institute. 2019;92(4):1077-1090.
doi:10.1016/j.joei.2018.06.009 .

Erić, Aleksandar, Nemoda, Stevan, Komatina, Mirko S., Dakić, Dragoljub V., Repić, Branislav, "Experimental investigation on the kinetics of biomass combustion in vertical tube reactor" in Journal of the Energy Institute, 92, no. 4 (2019):1077-1090,
https://doi.org/10.1016/j.joei.2018.06.009 . .

TY  - JOUR
AU  - Repić, Branislav
AU  - Stefanović, Predrag Lj.
AU  - Belošević, Srđan
AU  - Crnomarković, Nenad Đ.
AU  - Oka, Simeon N.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8946
AB  - The paper presents an overview of the results of the investigations of the process-es that take place in pulverized coal combustion boilers and power plants which, in a longer period of time, were realized in the Laboratory for Thermal Engineer-ing and Energy of the "Vinca" Institute of Nuclear Sciences. The presented re-sults were published in numerous studies realized for different users, Ph. D., M. Sc., and specialist thesis, in international and domestic scientific journals and monographs, presented at numerous international and domestic scientific meet-ings, etc. The main goal of the paper is to chronologically present the results of domestic research that at one time were at an enviable international level, with concrete practical applications for domestic users. This is especially important to contrast the present situation when domestic research in this area is scarce and when the energy sector relies practically only on imported technologies and for-eign consultancy. © 2019 Society of Thermal Engineers of Serbia.
T2  - Thermal Science
T1  - Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy-Part A
VL  - 23
IS  - Suppl. 5
SP  - S1587
EP  - S1609
DO  - 10.2298/TSCI191030443R
ER  - 

@article{
author = "Repić, Branislav and Stefanović, Predrag Lj. and Belošević, Srđan and Crnomarković, Nenad Đ. and Oka, Simeon N.",
year = "2019",
abstract = "The paper presents an overview of the results of the investigations of the process-es that take place in pulverized coal combustion boilers and power plants which, in a longer period of time, were realized in the Laboratory for Thermal Engineer-ing and Energy of the "Vinca" Institute of Nuclear Sciences. The presented re-sults were published in numerous studies realized for different users, Ph. D., M. Sc., and specialist thesis, in international and domestic scientific journals and monographs, presented at numerous international and domestic scientific meet-ings, etc. The main goal of the paper is to chronologically present the results of domestic research that at one time were at an enviable international level, with concrete practical applications for domestic users. This is especially important to contrast the present situation when domestic research in this area is scarce and when the energy sector relies practically only on imported technologies and for-eign consultancy. © 2019 Society of Thermal Engineers of Serbia.",
journal = "Thermal Science",
title = "Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy-Part A",
volume = "23",
number = "Suppl. 5",
pages = "S1587-S1609",
doi = "10.2298/TSCI191030443R"
}

Repić, B., Stefanović, P. Lj., Belošević, S., Crnomarković, N. Đ.,& Oka, S. N.. (2019). Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy-Part A. in Thermal Science, 23(Suppl. 5), S1587-S1609.
https://doi.org/10.2298/TSCI191030443R

Repić B, Stefanović PL, Belošević S, Crnomarković NĐ, Oka SN. Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy-Part A. in Thermal Science. 2019;23(Suppl. 5):S1587-S1609.
doi:10.2298/TSCI191030443R .

Repić, Branislav, Stefanović, Predrag Lj., Belošević, Srđan, Crnomarković, Nenad Đ., Oka, Simeon N., "Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy-Part A" in Thermal Science, 23, no. Suppl. 5 (2019):S1587-S1609,
https://doi.org/10.2298/TSCI191030443R . .

TY  - JOUR
AU  - Erić, Aleksandar
AU  - Nemoda, Stevan
AU  - Komatina, Mirko
AU  - Repić, Branislav
AU  - Dakic, Dragoljub
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8989
AB  - This paper presents numerical and experimental investigations of complex and interrelated physical and chemical phenomena that occur during combustion of baled soybean residue in the furnace with the cigarette type of combustion. The result of comprehensive research is reactive flow model of biomass combustion inside furnace. Model is described by set of PDE which define momentum, heat and mass transfer processes in porous and fluid system. The main aim of developed CFD model is numerical simulation of combustion process inside the cigarette furnace. It is also used to provide deeper insight in complex processes occurring during biomass combustion. Verification of proposed numerical model was performed through comprehensive experimental tests on the experimental-industrial plant of 1.5 MW boiler for heating the greenhouses in the Agricultural Corporation in Belgrade. The tests included measurement of flow rate and air and flue gas temperature input and output values on the furnace that are taken as the boundary conditions of the developed model. Comparison of the experimental results shows satisfactory agreement with numerical results (the maximum relative deviation of calculation and measurement temperatures are 10-45%), therefore the developed mathematical model could be used to analyse the effects of structural and parametric (fuel composition, power rate, air excess etc.) changes of the facility, from the standpoint of energy efficiency and ecology.
T2  - Thermal Science
T1  - Modeling of transport processes in the cigarette principle combustion furnace
VL  - 23
IS  - Suppl. 5
SP  - 1499
EP  - 1510
DO  - 10.2298/TSCI180226318E
ER  - 

@article{
author = "Erić, Aleksandar and Nemoda, Stevan and Komatina, Mirko and Repić, Branislav and Dakic, Dragoljub",
year = "2019",
abstract = "This paper presents numerical and experimental investigations of complex and interrelated physical and chemical phenomena that occur during combustion of baled soybean residue in the furnace with the cigarette type of combustion. The result of comprehensive research is reactive flow model of biomass combustion inside furnace. Model is described by set of PDE which define momentum, heat and mass transfer processes in porous and fluid system. The main aim of developed CFD model is numerical simulation of combustion process inside the cigarette furnace. It is also used to provide deeper insight in complex processes occurring during biomass combustion. Verification of proposed numerical model was performed through comprehensive experimental tests on the experimental-industrial plant of 1.5 MW boiler for heating the greenhouses in the Agricultural Corporation in Belgrade. The tests included measurement of flow rate and air and flue gas temperature input and output values on the furnace that are taken as the boundary conditions of the developed model. Comparison of the experimental results shows satisfactory agreement with numerical results (the maximum relative deviation of calculation and measurement temperatures are 10-45%), therefore the developed mathematical model could be used to analyse the effects of structural and parametric (fuel composition, power rate, air excess etc.) changes of the facility, from the standpoint of energy efficiency and ecology.",
journal = "Thermal Science",
title = "Modeling of transport processes in the cigarette principle combustion furnace",
volume = "23",
number = "Suppl. 5",
pages = "1499-1510",
doi = "10.2298/TSCI180226318E"
}

Erić, A., Nemoda, S., Komatina, M., Repić, B.,& Dakic, D.. (2019). Modeling of transport processes in the cigarette principle combustion furnace. in Thermal Science, 23(Suppl. 5), 1499-1510.
https://doi.org/10.2298/TSCI180226318E

Erić A, Nemoda S, Komatina M, Repić B, Dakic D. Modeling of transport processes in the cigarette principle combustion furnace. in Thermal Science. 2019;23(Suppl. 5):1499-1510.
doi:10.2298/TSCI180226318E .

Erić, Aleksandar, Nemoda, Stevan, Komatina, Mirko, Repić, Branislav, Dakic, Dragoljub, "Modeling of transport processes in the cigarette principle combustion furnace" in Thermal Science, 23, no. Suppl. 5 (2019):1499-1510,
https://doi.org/10.2298/TSCI180226318E . .

TY  - JOUR
AU  - Grubor, Borislav
AU  - Dakić, Dragoljub V.
AU  - Nemoda, Stevan
AU  - Mladenović, Milica R.
AU  - Paprika, Milijana
AU  - Oka, Simeon N.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8985
AB  - The paper gives a review of the most important results of extensive targeted fundamental research program on fluidized bed combustion in the Laboratory for Thermal Engineering and Energy of the VINCA Institute of Nuclear Sciences. The paper presents a detailed overview of research activities from the beginning in the second half of the 1970'' up to present days. Starting with the motives for initiating the investigations in this field, the paper highlights various phases of research and points out the main results of all research activities, not only the ones that are focused in this paper. Targeted fundamental research topics that are overviewed in this paper are heat and mass transfer, coal particle fragmentation, char particle combustion, sulfur self-retention by coal ash itself, as well as circulating fluidized bed modeling.
T2  - Thermal Science
T1  - Research in the fluidized bed combustion in the Laboratory for thermal engineering and energy - Part A: Achievements in targeted fundamental research
VL  - 23
IS  - Suppl. 5
SP  - 1637
EP  - 1653
DO  - 10.2298/TSCI180725289G
ER  - 

@article{
author = "Grubor, Borislav and Dakić, Dragoljub V. and Nemoda, Stevan and Mladenović, Milica R. and Paprika, Milijana and Oka, Simeon N.",
year = "2019",
abstract = "The paper gives a review of the most important results of extensive targeted fundamental research program on fluidized bed combustion in the Laboratory for Thermal Engineering and Energy of the VINCA Institute of Nuclear Sciences. The paper presents a detailed overview of research activities from the beginning in the second half of the 1970'' up to present days. Starting with the motives for initiating the investigations in this field, the paper highlights various phases of research and points out the main results of all research activities, not only the ones that are focused in this paper. Targeted fundamental research topics that are overviewed in this paper are heat and mass transfer, coal particle fragmentation, char particle combustion, sulfur self-retention by coal ash itself, as well as circulating fluidized bed modeling.",
journal = "Thermal Science",
title = "Research in the fluidized bed combustion in the Laboratory for thermal engineering and energy - Part A: Achievements in targeted fundamental research",
volume = "23",
number = "Suppl. 5",
pages = "1637-1653",
doi = "10.2298/TSCI180725289G"
}

Grubor, B., Dakić, D. V., Nemoda, S., Mladenović, M. R., Paprika, M.,& Oka, S. N.. (2019). Research in the fluidized bed combustion in the Laboratory for thermal engineering and energy - Part A: Achievements in targeted fundamental research. in Thermal Science, 23(Suppl. 5), 1637-1653.
https://doi.org/10.2298/TSCI180725289G

Grubor B, Dakić DV, Nemoda S, Mladenović MR, Paprika M, Oka SN. Research in the fluidized bed combustion in the Laboratory for thermal engineering and energy - Part A: Achievements in targeted fundamental research. in Thermal Science. 2019;23(Suppl. 5):1637-1653.
doi:10.2298/TSCI180725289G .

Grubor, Borislav, Dakić, Dragoljub V., Nemoda, Stevan, Mladenović, Milica R., Paprika, Milijana, Oka, Simeon N., "Research in the fluidized bed combustion in the Laboratory for thermal engineering and energy - Part A: Achievements in targeted fundamental research" in Thermal Science, 23, no. Suppl. 5 (2019):1637-1653,
https://doi.org/10.2298/TSCI180725289G . .

TY  - JOUR
AU  - Grubor, Borislav
AU  - Dakić, Dragoljub V.
AU  - Nemoda, Stevan
AU  - Mladenović, Milica R.
AU  - Paprika, Milijana
AU  - Oka, Simeon N.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8988
AB  - Paper gives a review of the most important results of extensive and wide-ranging research program on R&D of fluidized bed combustion technology in the Laboratory for Thermal Engineering and Energy of the VINCA Institute of Nuclear Sciences. Paper presents detailed overview of R&D activities from the beginning in the second half of the 1970's up to present days. These activities encompass applied research achievements in the field of characterization of limestones and bed agglomeration and sintering and modeling of overall processes during fluidized bed combustion, all of which have facilitated the R&D of the fluidized bed combustion technology. Attention is also given to steady-state combustion testing of a wide-range of fuels (coals, liquid fuels, biomass, waste solid and liquid materials, etc.) in our fluidized bed combustor and development of original methodology for testing the suitability of fuels for fluidized bed combustion, as well as specific achievements in the area of technology application in Serbia.
T2  - Thermal Science
T1  - Research in the fluidized bed combustion in the Laboratory for thermal engineering and energy - Part B: Achievements in technology implementation
VL  - 23
IS  - Suppl. 5
SP  - 1655
EP  - 1667
DO  - 10.2298/TSCI180725290G
ER  - 

@article{
author = "Grubor, Borislav and Dakić, Dragoljub V. and Nemoda, Stevan and Mladenović, Milica R. and Paprika, Milijana and Oka, Simeon N.",
year = "2019",
abstract = "Paper gives a review of the most important results of extensive and wide-ranging research program on R&D of fluidized bed combustion technology in the Laboratory for Thermal Engineering and Energy of the VINCA Institute of Nuclear Sciences. Paper presents detailed overview of R&D activities from the beginning in the second half of the 1970's up to present days. These activities encompass applied research achievements in the field of characterization of limestones and bed agglomeration and sintering and modeling of overall processes during fluidized bed combustion, all of which have facilitated the R&D of the fluidized bed combustion technology. Attention is also given to steady-state combustion testing of a wide-range of fuels (coals, liquid fuels, biomass, waste solid and liquid materials, etc.) in our fluidized bed combustor and development of original methodology for testing the suitability of fuels for fluidized bed combustion, as well as specific achievements in the area of technology application in Serbia.",
journal = "Thermal Science",
title = "Research in the fluidized bed combustion in the Laboratory for thermal engineering and energy - Part B: Achievements in technology implementation",
volume = "23",
number = "Suppl. 5",
pages = "1655-1667",
doi = "10.2298/TSCI180725290G"
}

Grubor, B., Dakić, D. V., Nemoda, S., Mladenović, M. R., Paprika, M.,& Oka, S. N.. (2019). Research in the fluidized bed combustion in the Laboratory for thermal engineering and energy - Part B: Achievements in technology implementation. in Thermal Science, 23(Suppl. 5), 1655-1667.
https://doi.org/10.2298/TSCI180725290G

Grubor B, Dakić DV, Nemoda S, Mladenović MR, Paprika M, Oka SN. Research in the fluidized bed combustion in the Laboratory for thermal engineering and energy - Part B: Achievements in technology implementation. in Thermal Science. 2019;23(Suppl. 5):1655-1667.
doi:10.2298/TSCI180725290G .

Grubor, Borislav, Dakić, Dragoljub V., Nemoda, Stevan, Mladenović, Milica R., Paprika, Milijana, Oka, Simeon N., "Research in the fluidized bed combustion in the Laboratory for thermal engineering and energy - Part B: Achievements in technology implementation" in Thermal Science, 23, no. Suppl. 5 (2019):1655-1667,
https://doi.org/10.2298/TSCI180725290G . .

TY  - JOUR
AU  - Mladenović, Milica R.
AU  - Paprika, Milijana
AU  - Marinković, Ana D.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1883
AB  - In order to achieve the main Applicable combustion control systems in grate-fired bogoals of sustainable development through the harmonization of rising energy needs with environmental protection, modern society promotes the use of biomass as a renewable energy source. Biomass, like any taother fuel, emits certain pollutants from combustion, nitrogen oxides (NOx) being one of them. Control of NOx emission, originated in biomass combustion, is becoming a very significant technical challenge due to the imposition of increasingly strict emission limits. The experimental research and industrial experiences (that are not always easily available) were analyzed in order to make an overview of proven and prospective technical solutions, as well as directions for practical applications for reducing NOx emissions originating from biomass combustion. The denitrification techniques according to the broadest classification (pre-combustion, combustion control and post-combustion) have been analyzed. As the NOx emission is more strongly influenced by the nitrogen content of biomass fuels (especially of those with significant nitrogen content) rather than the operating conditions, the emphasis is placed on the post-combustion (secondary denitrification) measures and the most successful among them - selective catalytic (SCR) and non-catalytic reduction (SNCR). The SCR catalysts, as well as commonly used amine-based reagents (in both SCR and SNCR), are analyzed in accordance with various parameters (activity temperature domain, the location of installation and structural configuration). The special challenges for SCR and SNCR application were considered, and a comparative overview of advantages and disadvantages are given, in accordance with several different criteria. In addition, the applicability of deNOx techniques from the aspect of individual biomass combustion technology is given. Guidelines for the selection of denitrification measures are created, depending on the biomass combusted, combustion technology used, and the installation capacity.
T2  - Renewable and Sustainable Energy Reviews
T1  - Denitrification techniques for biomass combustion
VL  - 82
SP  - 3350
EP  - 3364
DO  - 10.1016/j.rser.2017.10.054
ER  - 

@article{
author = "Mladenović, Milica R. and Paprika, Milijana and Marinković, Ana D.",
year = "2018",
abstract = "In order to achieve the main Applicable combustion control systems in grate-fired bogoals of sustainable development through the harmonization of rising energy needs with environmental protection, modern society promotes the use of biomass as a renewable energy source. Biomass, like any taother fuel, emits certain pollutants from combustion, nitrogen oxides (NOx) being one of them. Control of NOx emission, originated in biomass combustion, is becoming a very significant technical challenge due to the imposition of increasingly strict emission limits. The experimental research and industrial experiences (that are not always easily available) were analyzed in order to make an overview of proven and prospective technical solutions, as well as directions for practical applications for reducing NOx emissions originating from biomass combustion. The denitrification techniques according to the broadest classification (pre-combustion, combustion control and post-combustion) have been analyzed. As the NOx emission is more strongly influenced by the nitrogen content of biomass fuels (especially of those with significant nitrogen content) rather than the operating conditions, the emphasis is placed on the post-combustion (secondary denitrification) measures and the most successful among them - selective catalytic (SCR) and non-catalytic reduction (SNCR). The SCR catalysts, as well as commonly used amine-based reagents (in both SCR and SNCR), are analyzed in accordance with various parameters (activity temperature domain, the location of installation and structural configuration). The special challenges for SCR and SNCR application were considered, and a comparative overview of advantages and disadvantages are given, in accordance with several different criteria. In addition, the applicability of deNOx techniques from the aspect of individual biomass combustion technology is given. Guidelines for the selection of denitrification measures are created, depending on the biomass combusted, combustion technology used, and the installation capacity.",
journal = "Renewable and Sustainable Energy Reviews",
title = "Denitrification techniques for biomass combustion",
volume = "82",
pages = "3350-3364",
doi = "10.1016/j.rser.2017.10.054"
}

Mladenović, M. R., Paprika, M.,& Marinković, A. D.. (2018). Denitrification techniques for biomass combustion. in Renewable and Sustainable Energy Reviews, 82, 3350-3364.
https://doi.org/10.1016/j.rser.2017.10.054

Mladenović MR, Paprika M, Marinković AD. Denitrification techniques for biomass combustion. in Renewable and Sustainable Energy Reviews. 2018;82:3350-3364.
doi:10.1016/j.rser.2017.10.054 .

Mladenović, Milica R., Paprika, Milijana, Marinković, Ana D., "Denitrification techniques for biomass combustion" in Renewable and Sustainable Energy Reviews, 82 (2018):3350-3364,
https://doi.org/10.1016/j.rser.2017.10.054 . .

TY  - JOUR
AU  - Nemoda, Stevan
AU  - Mladenović, Milica
AU  - Marinković, Ana
AU  - Živković, Goran
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11169
AB  - Istraživanja vezana za razvoj sekundarnih mera denitrifikacije dimnih gasova
sagorevanja agrarne biomase su sve aktuelnija zbog sve intenzivnije primene ovog
obnovljivog goriva i pospešivanja održivog razvoja, odnosno smanjenja potrošnje fosilnih
goriva. Pri tome agrarna biomasa kao gorivo, pored niza prednosti, ima važan nedostatak
zbog značajne emisije azotnih oksida. U radu se u prvom redu analiziraju hemijske reakcije
selektivne nekalitičke redukcije azot-monoksida primenom amonijaka kao reagensa.
Analiziraju se dva kinetička modela, jedan krajnje uprošćen, koji uzima u obzir samo dve
neto reakcije i složeniji sa sedam hemijskih reakcija. Razmatrani hemijsko-kinetički modeli
su inkorporirani u sveobuhvatni CFD model složenih procesa u eksperimentalnoj
denitrifikacionoj komori za simuliranje procesa industrijske denitrifikacije. Pri tome je
obavljena sveobuhvatna analiza procesa, koja uključuje simulaciju strujanja, mešanja
komponenti i praćenje lokalnih hemijskih reakcija. Rezultati numeričke simulacije procesa
u eksperimentalnoj denitrifikacionoj komori su poređeni sa eksperimentima iz literature,
kao i sa rezultatima modela drugih autora. Pri tome su obezbeđeni isti granični uslovi
odvijanja razmatranih procesa, tj ulazne koncetracije komponenta su: 300 ppm NH3, 300
ppm NO, 4.0% O2, 4.5% H2O, a vreme boravka reaktanata u komori je 150 ms.
Ključne reči: biomasa, sagorevanje, emisija azotnih oksida, denitrifikacija.
AB  - Research related to the development of secondary measures of denitrification of agrarian biomass combustion gases is becoming more and more actual due to the increasingly intensive application of this renewable fuel and the promotion of sustainable development, ie, the reduction of consumption of fossil fuels. Thereby, in spite of a number of advantages, agrarian biomass has an important disadvantage due to significant emissions of nitrogen oxides. The paper deals primarily with the chemical reactions of selective noncatalytic reduction of nitrogen monoxide using ammonia as a reagent. Two kinetic models, one rather simplistic, which takes into account only two net reactions and other, more complex with seven chemical reactions, are analyzed. The considered chemicalkinetic models are incorporated into a comprehensive CFD model of complex processes in an experimental denitrification chamber. The CFD model was included flow simulation, components mixing and monitoring of local chemical reactions. The results of presented numerical simulation were compared with literature experiments, as well as with the results of other authors' models. The same boundary conditions of the considered processes are provided, i.e. the input concentrations of the component are: 300 ppm NH3, 300 ppm NO, 4.0% O2, 4.5% H2O, and the residence time of the reactants in the chamber is 150 ms.
T2  - Savremena poljoprivredna tehnika
T1  - The application of chemical kinetic models in numerical simulation of the process of non-catalitic reduction of NOX with amonia in biomass combustion products
VL  - 44
IS  - 1
SP  - 37
EP  - 44
DO  - 10.5937/SavPoljTeh1801037N
ER  - 

@article{
author = "Nemoda, Stevan and Mladenović, Milica and Marinković, Ana and Živković, Goran",
year = "2018",
abstract = "Istraživanja vezana za razvoj sekundarnih mera denitrifikacije dimnih gasova
sagorevanja agrarne biomase su sve aktuelnija zbog sve intenzivnije primene ovog
obnovljivog goriva i pospešivanja održivog razvoja, odnosno smanjenja potrošnje fosilnih
goriva. Pri tome agrarna biomasa kao gorivo, pored niza prednosti, ima važan nedostatak
zbog značajne emisije azotnih oksida. U radu se u prvom redu analiziraju hemijske reakcije
selektivne nekalitičke redukcije azot-monoksida primenom amonijaka kao reagensa.
Analiziraju se dva kinetička modela, jedan krajnje uprošćen, koji uzima u obzir samo dve
neto reakcije i složeniji sa sedam hemijskih reakcija. Razmatrani hemijsko-kinetički modeli
su inkorporirani u sveobuhvatni CFD model složenih procesa u eksperimentalnoj
denitrifikacionoj komori za simuliranje procesa industrijske denitrifikacije. Pri tome je
obavljena sveobuhvatna analiza procesa, koja uključuje simulaciju strujanja, mešanja
komponenti i praćenje lokalnih hemijskih reakcija. Rezultati numeričke simulacije procesa
u eksperimentalnoj denitrifikacionoj komori su poređeni sa eksperimentima iz literature,
kao i sa rezultatima modela drugih autora. Pri tome su obezbeđeni isti granični uslovi
odvijanja razmatranih procesa, tj ulazne koncetracije komponenta su: 300 ppm NH3, 300
ppm NO, 4.0% O2, 4.5% H2O, a vreme boravka reaktanata u komori je 150 ms.
Ključne reči: biomasa, sagorevanje, emisija azotnih oksida, denitrifikacija., Research related to the development of secondary measures of denitrification of agrarian biomass combustion gases is becoming more and more actual due to the increasingly intensive application of this renewable fuel and the promotion of sustainable development, ie, the reduction of consumption of fossil fuels. Thereby, in spite of a number of advantages, agrarian biomass has an important disadvantage due to significant emissions of nitrogen oxides. The paper deals primarily with the chemical reactions of selective noncatalytic reduction of nitrogen monoxide using ammonia as a reagent. Two kinetic models, one rather simplistic, which takes into account only two net reactions and other, more complex with seven chemical reactions, are analyzed. The considered chemicalkinetic models are incorporated into a comprehensive CFD model of complex processes in an experimental denitrification chamber. The CFD model was included flow simulation, components mixing and monitoring of local chemical reactions. The results of presented numerical simulation were compared with literature experiments, as well as with the results of other authors' models. The same boundary conditions of the considered processes are provided, i.e. the input concentrations of the component are: 300 ppm NH3, 300 ppm NO, 4.0% O2, 4.5% H2O, and the residence time of the reactants in the chamber is 150 ms.",
journal = "Savremena poljoprivredna tehnika",
title = "The application of chemical kinetic models in numerical simulation of the process of non-catalitic reduction of NOX with amonia in biomass combustion products",
volume = "44",
number = "1",
pages = "37-44",
doi = "10.5937/SavPoljTeh1801037N"
}

Nemoda, S., Mladenović, M., Marinković, A.,& Živković, G.. (2018). The application of chemical kinetic models in numerical simulation of the process of non-catalitic reduction of NOX with amonia in biomass combustion products. in Savremena poljoprivredna tehnika, 44(1), 37-44.
https://doi.org/10.5937/SavPoljTeh1801037N

Nemoda S, Mladenović M, Marinković A, Živković G. The application of chemical kinetic models in numerical simulation of the process of non-catalitic reduction of NOX with amonia in biomass combustion products. in Savremena poljoprivredna tehnika. 2018;44(1):37-44.
doi:10.5937/SavPoljTeh1801037N .

Nemoda, Stevan, Mladenović, Milica, Marinković, Ana, Živković, Goran, "The application of chemical kinetic models in numerical simulation of the process of non-catalitic reduction of NOX with amonia in biomass combustion products" in Savremena poljoprivredna tehnika, 44, no. 1 (2018):37-44,
https://doi.org/10.5937/SavPoljTeh1801037N . .

TY  - CONF
AU  - Repić, Branislav
AU  - Erić, Aleksandar
AU  - Nemoda, Stevan
AU  - Mladenović, Milica
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11599
AB  - Sagorevanje goriva pomoću vrtložnih gorionika, korišćenjem efekta vihornog strujanja, je vrlo značajno i široko rasprostranjeno. Proračun vrtložnih gorionika je relativno složen proračun i zahteva obučenog projektanta. S obzirom da je ručnim proračunom teško razmotriti različite varijante komponovanja gorionika to predstavlja ograničavajući faktor pravilnog projektovanja. U radu je izložen softver za proračun i dimenzionisanje vrtložnih gorionika. On omogućuje da se provere sve one varijante komponovanja gorionika u odnosu na razne karakteristike goriva i raspodele vazduha i izabere optimalna konstrukcija gorionika. Programom je obuhvaćeno više varijanti gorionika. Proračun je primenjiv za čvrsto sprašeno gorivo i gasovito gorivo. Program je napravljen tako, da se na osnovu izabranih polaznih podataka izvrši dimenzionisanje i interaktivni proračun gorionika, te da se, na osnovu standardnih konstruktivnih materijala, izabere optimalna konstrukcija gorionika.
AB  - Combustion   of   fuel   with   swirl   burners,   using   swirl   flow   effect   is   very   significant   and   widespread.  Calculation  of  swirl  burners  is  relatively  complex  calculation  and  requires  a  trained  designer. Since it is difficult by manually calculation consider different variants of composing burners it is a limiting factor in the proper design. In the paper presents is the software for the calculation and dimensioning of swirl burners. It allows checking all those variants of burner composition in relation to  the  various  fuels  characteristics  and  airing  distribution,  and  determined  the  optimal  design  of  the  burner.  The  program  includes  several  variants  of  burners.  Calculation  is  applicable  for  pulverized  solid fuel and gas fuel. The program is designed so, based on the selected baseline data executed inte-ractive dimensioning and calculation of the burner, and that, on the basis of standard structural mate-rials, determined the optimal design of the burner.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku
C3  - 30. Međunarodni kongres o procesnoj industriji - PROCESING ′17 : zbornik radova
T1  - Proračun i dimenzionisanje vrtložnih gorionika korišćenjem namenskog softvera
T1  - Calculation and design of swirl burners  using dedicated software
SP  - 357
EP  - 364
DO  - 10.24094/ptk.017.30.1.357
ER  - 

@conference{
author = "Repić, Branislav and Erić, Aleksandar and Nemoda, Stevan and Mladenović, Milica",
year = "2017",
abstract = "Sagorevanje goriva pomoću vrtložnih gorionika, korišćenjem efekta vihornog strujanja, je vrlo značajno i široko rasprostranjeno. Proračun vrtložnih gorionika je relativno složen proračun i zahteva obučenog projektanta. S obzirom da je ručnim proračunom teško razmotriti različite varijante komponovanja gorionika to predstavlja ograničavajući faktor pravilnog projektovanja. U radu je izložen softver za proračun i dimenzionisanje vrtložnih gorionika. On omogućuje da se provere sve one varijante komponovanja gorionika u odnosu na razne karakteristike goriva i raspodele vazduha i izabere optimalna konstrukcija gorionika. Programom je obuhvaćeno više varijanti gorionika. Proračun je primenjiv za čvrsto sprašeno gorivo i gasovito gorivo. Program je napravljen tako, da se na osnovu izabranih polaznih podataka izvrši dimenzionisanje i interaktivni proračun gorionika, te da se, na osnovu standardnih konstruktivnih materijala, izabere optimalna konstrukcija gorionika., Combustion   of   fuel   with   swirl   burners,   using   swirl   flow   effect   is   very   significant   and   widespread.  Calculation  of  swirl  burners  is  relatively  complex  calculation  and  requires  a  trained  designer. Since it is difficult by manually calculation consider different variants of composing burners it is a limiting factor in the proper design. In the paper presents is the software for the calculation and dimensioning of swirl burners. It allows checking all those variants of burner composition in relation to  the  various  fuels  characteristics  and  airing  distribution,  and  determined  the  optimal  design  of  the  burner.  The  program  includes  several  variants  of  burners.  Calculation  is  applicable  for  pulverized  solid fuel and gas fuel. The program is designed so, based on the selected baseline data executed inte-ractive dimensioning and calculation of the burner, and that, on the basis of standard structural mate-rials, determined the optimal design of the burner.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku",
journal = "30. Međunarodni kongres o procesnoj industriji - PROCESING ′17 : zbornik radova",
title = "Proračun i dimenzionisanje vrtložnih gorionika korišćenjem namenskog softvera, Calculation and design of swirl burners  using dedicated software",
pages = "357-364",
doi = "10.24094/ptk.017.30.1.357"
}

Repić, B., Erić, A., Nemoda, S.,& Mladenović, M.. (2017). Proračun i dimenzionisanje vrtložnih gorionika korišćenjem namenskog softvera. in 30. Međunarodni kongres o procesnoj industriji - PROCESING ′17 : zbornik radova
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku., 357-364.
https://doi.org/10.24094/ptk.017.30.1.357

Repić B, Erić A, Nemoda S, Mladenović M. Proračun i dimenzionisanje vrtložnih gorionika korišćenjem namenskog softvera. in 30. Međunarodni kongres o procesnoj industriji - PROCESING ′17 : zbornik radova. 2017;:357-364.
doi:10.24094/ptk.017.30.1.357 .

Repić, Branislav, Erić, Aleksandar, Nemoda, Stevan, Mladenović, Milica, "Proračun i dimenzionisanje vrtložnih gorionika korišćenjem namenskog softvera" in 30. Međunarodni kongres o procesnoj industriji - PROCESING ′17 : zbornik radova (2017):357-364,
https://doi.org/10.24094/ptk.017.30.1.357 . .

TY  - CONF
AU  - Mladenović, Milica
AU  - Marinković, Ana
AU  - Paprika, Milijana
AU  - Repić, Branislav
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11600
AB  - Iako se sagorevanje biomase promoviše sa stanovišta očuvanja životne sredine zbog značajno manje emisije štetnih gasova nego pri sagorevanju najzastupljenijeg domaćeg fosilnog goriva-uglja, eksperimenti sagorevanja više tipova biomase su pokazali da se i ovim sagorevanjem emituje izvesna količina polutanata koju je potrebno kontrolisati. Emisija azotnih oksida (NOx) je jedan od najvećih izazova u tom pogledu. Poznavanje i kontrolisanje emisije ovih oksida prilikom sagorevanja biomase je neophodno radi uspostavljanja korektnih zakonskih normi u pogledu granične emisije i za razvoj što kvalitetnijih tehnologija za sagorevanje ove vrste goriva. U tom cilju u radu je dat opis eksperimentalne aparature, koja ima za cilj da ispita efikasan način za redukciju NOx-a u dimnim gasovima upotrebom sekundarnih mera denitrifikacije. Takođe su dati i termički proračuni parametara sagorevanja u eksperimentalnom adijabatskom ložištu.
AB  - Even though biomass combustion is promoted from the standpoint of environmental protection due to significantly lower emissions in comparison to combustion of the predominate domestic fossil fuel –coal, combustion experiments with several types of biomass showed that the combustion emits a certain amount of pollutants which needs to be controlled. Emissions of nitrogen oxides (NOx) is one of the biggest challenges in this regard. Knowing and controlling the emissions of these oxides during the combustion ofbiomass is required for correct establishment of legal norms in terms of the emis-sions limits and to develop better technologies for combustion of these fuels. In that sense, the paper gives a description of the new experimental apparatus, which aims to explore an effective way to re-duce NOx in the exhaust gas, using the secondary denitrification methods. The calculation of the main combustion parameters in the experimental adiabatic furnace are also given here
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku
C3  - 30. Međunarodni kongres o procesnoj industriji - PROCESING ′17 : zbornik radova
T1  - Eksperimentalna aparatura za simulaciju sagorevanja biomase i kontrolu azotnih oksida
T1  - Experimental apparatus for simulation of biomass combustion and control of nitrogen oxide
SP  - 175
EP  - 182
DO  - 10.24094/ptk.017.30.1.175
ER  - 

@conference{
author = "Mladenović, Milica and Marinković, Ana and Paprika, Milijana and Repić, Branislav",
year = "2017",
abstract = "Iako se sagorevanje biomase promoviše sa stanovišta očuvanja životne sredine zbog značajno manje emisije štetnih gasova nego pri sagorevanju najzastupljenijeg domaćeg fosilnog goriva-uglja, eksperimenti sagorevanja više tipova biomase su pokazali da se i ovim sagorevanjem emituje izvesna količina polutanata koju je potrebno kontrolisati. Emisija azotnih oksida (NOx) je jedan od najvećih izazova u tom pogledu. Poznavanje i kontrolisanje emisije ovih oksida prilikom sagorevanja biomase je neophodno radi uspostavljanja korektnih zakonskih normi u pogledu granične emisije i za razvoj što kvalitetnijih tehnologija za sagorevanje ove vrste goriva. U tom cilju u radu je dat opis eksperimentalne aparature, koja ima za cilj da ispita efikasan način za redukciju NOx-a u dimnim gasovima upotrebom sekundarnih mera denitrifikacije. Takođe su dati i termički proračuni parametara sagorevanja u eksperimentalnom adijabatskom ložištu., Even though biomass combustion is promoted from the standpoint of environmental protection due to significantly lower emissions in comparison to combustion of the predominate domestic fossil fuel –coal, combustion experiments with several types of biomass showed that the combustion emits a certain amount of pollutants which needs to be controlled. Emissions of nitrogen oxides (NOx) is one of the biggest challenges in this regard. Knowing and controlling the emissions of these oxides during the combustion ofbiomass is required for correct establishment of legal norms in terms of the emis-sions limits and to develop better technologies for combustion of these fuels. In that sense, the paper gives a description of the new experimental apparatus, which aims to explore an effective way to re-duce NOx in the exhaust gas, using the secondary denitrification methods. The calculation of the main combustion parameters in the experimental adiabatic furnace are also given here",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku",
journal = "30. Međunarodni kongres o procesnoj industriji - PROCESING ′17 : zbornik radova",
title = "Eksperimentalna aparatura za simulaciju sagorevanja biomase i kontrolu azotnih oksida, Experimental apparatus for simulation of biomass combustion and control of nitrogen oxide",
pages = "175-182",
doi = "10.24094/ptk.017.30.1.175"
}

Mladenović, M., Marinković, A., Paprika, M.,& Repić, B.. (2017). Eksperimentalna aparatura za simulaciju sagorevanja biomase i kontrolu azotnih oksida. in 30. Međunarodni kongres o procesnoj industriji - PROCESING ′17 : zbornik radova
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku., 175-182.
https://doi.org/10.24094/ptk.017.30.1.175

Mladenović M, Marinković A, Paprika M, Repić B. Eksperimentalna aparatura za simulaciju sagorevanja biomase i kontrolu azotnih oksida. in 30. Međunarodni kongres o procesnoj industriji - PROCESING ′17 : zbornik radova. 2017;:175-182.
doi:10.24094/ptk.017.30.1.175 .

Mladenović, Milica, Marinković, Ana, Paprika, Milijana, Repić, Branislav, "Eksperimentalna aparatura za simulaciju sagorevanja biomase i kontrolu azotnih oksida" in 30. Međunarodni kongres o procesnoj industriji - PROCESING ′17 : zbornik radova (2017):175-182,
https://doi.org/10.24094/ptk.017.30.1.175 . .

TY  - JOUR
AU  - Mladenović, Milica R.
AU  - Dakić, Dragoljub V.
AU  - Nemoda, Stevan
AU  - Paprika, Milijana
AU  - Komatina, Mirko S.
AU  - Repić, Branislav
AU  - Erić, Aleksandar
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1199
AB  - Harmonization of environmental protection and the growing energy needs of modern society promote the biomass application as a replacement for fossil fuels and a viable option to mitigate the greenhouse gas emissions. For domestic conditions this is particularly important as more than 60% of renewables belongs to biomass. Beside numerous benefits of using biomass for energy purposes, there are certain drawbacks, one of which is a possible high emission of NOx during the combustion of these fuels. The paper presents the results of the experiments with multiple biomass types (soybean straw, cornstalk, grain biomass, sunflower oil, glycerin and paper sludge), using different combustion technologies (fluidized bed and cigarette combustion), with emphasis on the emission of NOx in the exhaust gas. A presentation of the experimental installations is given, as well as an evaluation of the effects of the fuel composition, combustion regimes and technology on the NOx emissions. As the biomass combustion took place at temperatures low enough that thermal and prompt NOx can be neglected, the conclusion is the emissions of nitrogen oxides primarily depend on the biomass composition - it is increasing with the increase of the nitrogen content, and decreases with the increase of the char content which provides catalytic surface for NOx reduction by CO.
T2  - Hemijska industrija
T1  - The combustion of biomass - The impact of its types and combustion technologies on the emission of nitrogen oxide
VL  - 70
IS  - 3
SP  - 287
EP  - 298
DO  - 10.2298/HEMIND150409033M
ER  - 

@article{
author = "Mladenović, Milica R. and Dakić, Dragoljub V. and Nemoda, Stevan and Paprika, Milijana and Komatina, Mirko S. and Repić, Branislav and Erić, Aleksandar",
year = "2016",
abstract = "Harmonization of environmental protection and the growing energy needs of modern society promote the biomass application as a replacement for fossil fuels and a viable option to mitigate the greenhouse gas emissions. For domestic conditions this is particularly important as more than 60% of renewables belongs to biomass. Beside numerous benefits of using biomass for energy purposes, there are certain drawbacks, one of which is a possible high emission of NOx during the combustion of these fuels. The paper presents the results of the experiments with multiple biomass types (soybean straw, cornstalk, grain biomass, sunflower oil, glycerin and paper sludge), using different combustion technologies (fluidized bed and cigarette combustion), with emphasis on the emission of NOx in the exhaust gas. A presentation of the experimental installations is given, as well as an evaluation of the effects of the fuel composition, combustion regimes and technology on the NOx emissions. As the biomass combustion took place at temperatures low enough that thermal and prompt NOx can be neglected, the conclusion is the emissions of nitrogen oxides primarily depend on the biomass composition - it is increasing with the increase of the nitrogen content, and decreases with the increase of the char content which provides catalytic surface for NOx reduction by CO.",
journal = "Hemijska industrija",
title = "The combustion of biomass - The impact of its types and combustion technologies on the emission of nitrogen oxide",
volume = "70",
number = "3",
pages = "287-298",
doi = "10.2298/HEMIND150409033M"
}

Mladenović, M. R., Dakić, D. V., Nemoda, S., Paprika, M., Komatina, M. S., Repić, B.,& Erić, A.. (2016). The combustion of biomass - The impact of its types and combustion technologies on the emission of nitrogen oxide. in Hemijska industrija, 70(3), 287-298.
https://doi.org/10.2298/HEMIND150409033M

Mladenović MR, Dakić DV, Nemoda S, Paprika M, Komatina MS, Repić B, Erić A. The combustion of biomass - The impact of its types and combustion technologies on the emission of nitrogen oxide. in Hemijska industrija. 2016;70(3):287-298.
doi:10.2298/HEMIND150409033M .

Mladenović, Milica R., Dakić, Dragoljub V., Nemoda, Stevan, Paprika, Milijana, Komatina, Mirko S., Repić, Branislav, Erić, Aleksandar, "The combustion of biomass - The impact of its types and combustion technologies on the emission of nitrogen oxide" in Hemijska industrija, 70, no. 3 (2016):287-298,
https://doi.org/10.2298/HEMIND150409033M . .

TY  - JOUR
AU  - Paprika, Milijana
AU  - Komatina, Mirko S.
AU  - Mladenović, Milica R.
AU  - Živković, Goran S.
AU  - Dakić, Dragoljub V.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1139
AB  - In order to lay a foundation of a credible primacy fragmentation model, a theoretical analysis of the thermo-mechanical processes in a devolatilizing solid fuel particle was carried out. The devolatilization model comprises heat transfer, chemical processes of generation of gaseous products of combustion (volatiles), volatile transfer, and solid mechanic processes. A spatial and temporal analysis of the stresses within the particle showed that the radial stress is caused primarily by the pressure of generated volatiles. This stress monotonously decreases from the particle center towards the particle surface, without changing its sign. The tangential stress is caused primarily by the thermal shock. Close to the surface, it changes its sign. In the particle cross-section, the radial stress prevails close to the particle center, whilst the tangential stress is dominant in the surface region. At the points where these stresses exceed the particle tensile strength, cracks occur. Cracks extend tangentially close to the surface, and radially close to the center of the particle.
T2  - Thermal Science
T1  - Mechanism of Primary Fragmentation of Coal in Fluidized Bed
VL  - 20
SP  - S125
EP  - S132
DO  - 10.2298/TSCI150603224P
ER  - 

@article{
author = "Paprika, Milijana and Komatina, Mirko S. and Mladenović, Milica R. and Živković, Goran S. and Dakić, Dragoljub V.",
year = "2016",
abstract = "In order to lay a foundation of a credible primacy fragmentation model, a theoretical analysis of the thermo-mechanical processes in a devolatilizing solid fuel particle was carried out. The devolatilization model comprises heat transfer, chemical processes of generation of gaseous products of combustion (volatiles), volatile transfer, and solid mechanic processes. A spatial and temporal analysis of the stresses within the particle showed that the radial stress is caused primarily by the pressure of generated volatiles. This stress monotonously decreases from the particle center towards the particle surface, without changing its sign. The tangential stress is caused primarily by the thermal shock. Close to the surface, it changes its sign. In the particle cross-section, the radial stress prevails close to the particle center, whilst the tangential stress is dominant in the surface region. At the points where these stresses exceed the particle tensile strength, cracks occur. Cracks extend tangentially close to the surface, and radially close to the center of the particle.",
journal = "Thermal Science",
title = "Mechanism of Primary Fragmentation of Coal in Fluidized Bed",
volume = "20",
pages = "S125-S132",
doi = "10.2298/TSCI150603224P"
}

Paprika, M., Komatina, M. S., Mladenović, M. R., Živković, G. S.,& Dakić, D. V.. (2016). Mechanism of Primary Fragmentation of Coal in Fluidized Bed. in Thermal Science, 20, S125-S132.
https://doi.org/10.2298/TSCI150603224P

Paprika M, Komatina MS, Mladenović MR, Živković GS, Dakić DV. Mechanism of Primary Fragmentation of Coal in Fluidized Bed. in Thermal Science. 2016;20:S125-S132.
doi:10.2298/TSCI150603224P .

Paprika, Milijana, Komatina, Mirko S., Mladenović, Milica R., Živković, Goran S., Dakić, Dragoljub V., "Mechanism of Primary Fragmentation of Coal in Fluidized Bed" in Thermal Science, 20 (2016):S125-S132,
https://doi.org/10.2298/TSCI150603224P . .

TY  - JOUR
AU  - Rudonja, Nedzad R.
AU  - Komatina, Mirko S.
AU  - Živković, Goran S.
AU  - Antonijević, Dragi Lj.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1148
AB  - Enhancement of heat transfer over a cylinder shaped thermal energy storage filled by paraffin E53 by use of longitudinal rectangular copper fins was analyzed. The thermo-physical features of the storage material are determined in separate experiments and implemented to FLUENT software over user defined function. Advanced thermal storage geometry comprehension and optimization required introduction of a parameter suitable for the analysis of heat transfer enhancement, so the ratio of heat transfer surfaces as a factor was proposed and applied. It is revealed that increase of the ratio of heat transfer surfaces leads to the decrease of melting time and vice versa. Numerical analysis, employing the 3-D model built in Ansys software, observed storage reservoir geometries with variable number of longitudinal fins. The adjusted set of boundary conditions was carried out and both written in C language and implemented over user defined function in order to define variable heat flux along the height of the heater. The comparison of acquired numerical and experimental results showed a strong correlation. Experimental validation of numerical results was done on the real thermal energy storage apparatus.
T2  - Thermal Science
T1  - Heat Transfer Enhancement Through Pcm Thermal Storage By Use of Copper Fins
VL  - 20
SP  - S251
EP  - S259
DO  - 10.2298/TSCI150729136R
ER  - 

@article{
author = "Rudonja, Nedzad R. and Komatina, Mirko S. and Živković, Goran S. and Antonijević, Dragi Lj.",
year = "2016",
abstract = "Enhancement of heat transfer over a cylinder shaped thermal energy storage filled by paraffin E53 by use of longitudinal rectangular copper fins was analyzed. The thermo-physical features of the storage material are determined in separate experiments and implemented to FLUENT software over user defined function. Advanced thermal storage geometry comprehension and optimization required introduction of a parameter suitable for the analysis of heat transfer enhancement, so the ratio of heat transfer surfaces as a factor was proposed and applied. It is revealed that increase of the ratio of heat transfer surfaces leads to the decrease of melting time and vice versa. Numerical analysis, employing the 3-D model built in Ansys software, observed storage reservoir geometries with variable number of longitudinal fins. The adjusted set of boundary conditions was carried out and both written in C language and implemented over user defined function in order to define variable heat flux along the height of the heater. The comparison of acquired numerical and experimental results showed a strong correlation. Experimental validation of numerical results was done on the real thermal energy storage apparatus.",
journal = "Thermal Science",
title = "Heat Transfer Enhancement Through Pcm Thermal Storage By Use of Copper Fins",
volume = "20",
pages = "S251-S259",
doi = "10.2298/TSCI150729136R"
}

Rudonja, N. R., Komatina, M. S., Živković, G. S.,& Antonijević, D. Lj.. (2016). Heat Transfer Enhancement Through Pcm Thermal Storage By Use of Copper Fins. in Thermal Science, 20, S251-S259.
https://doi.org/10.2298/TSCI150729136R

Rudonja NR, Komatina MS, Živković GS, Antonijević DL. Heat Transfer Enhancement Through Pcm Thermal Storage By Use of Copper Fins. in Thermal Science. 2016;20:S251-S259.
doi:10.2298/TSCI150729136R .

Rudonja, Nedzad R., Komatina, Mirko S., Živković, Goran S., Antonijević, Dragi Lj., "Heat Transfer Enhancement Through Pcm Thermal Storage By Use of Copper Fins" in Thermal Science, 20 (2016):S251-S259,
https://doi.org/10.2298/TSCI150729136R . .

TY  - JOUR
AU  - Rudonja, Nedzad R.
AU  - Komatina, Mirko S.
AU  - Antonijević, Dragi Lj.
AU  - Živković, Goran S.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7151
AB  - Precise understanding of heat transfer processes inside the latent thermal energy storage exposed to different initial and boundary conditions is crucial for development of optimized design and operating features of similar devices. The paper presents 3D numerical study of phase change material heat storage in the shape of vertical cylinder reservoir with axially placed heat source/sink equipped with variable number of conductance enhancing longitudinal rectangular fins. As the principally important observed is the case of vertically variable heat flux supplied to the phase change material during the melting process. The numerical modeling is based on the physical model of the process and is being carried out by Fluent software that uses finite volume method for solving continuity, momentum and energy equations. The coupling between pressure and velocity is based on the Semi- Implicit Pressure- Linked Equation (SIMPLE) algorithm. The results of numerical simulations are verified through the comparison with the own experimental results. Exemplary results for characteristic heat storage geometries and boundary conditions are presented and analyzed in the paper.
T2  - Bulgarian Chemical Communications
T1  - Numerical simulation of latent heat storage with conductance enhancing fins
VL  - 48
SP  - 199
EP  - 205
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7151
ER  - 

@article{
author = "Rudonja, Nedzad R. and Komatina, Mirko S. and Antonijević, Dragi Lj. and Živković, Goran S.",
year = "2016",
abstract = "Precise understanding of heat transfer processes inside the latent thermal energy storage exposed to different initial and boundary conditions is crucial for development of optimized design and operating features of similar devices. The paper presents 3D numerical study of phase change material heat storage in the shape of vertical cylinder reservoir with axially placed heat source/sink equipped with variable number of conductance enhancing longitudinal rectangular fins. As the principally important observed is the case of vertically variable heat flux supplied to the phase change material during the melting process. The numerical modeling is based on the physical model of the process and is being carried out by Fluent software that uses finite volume method for solving continuity, momentum and energy equations. The coupling between pressure and velocity is based on the Semi- Implicit Pressure- Linked Equation (SIMPLE) algorithm. The results of numerical simulations are verified through the comparison with the own experimental results. Exemplary results for characteristic heat storage geometries and boundary conditions are presented and analyzed in the paper.",
journal = "Bulgarian Chemical Communications",
title = "Numerical simulation of latent heat storage with conductance enhancing fins",
volume = "48",
pages = "199-205",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7151"
}

Rudonja, N. R., Komatina, M. S., Antonijević, D. Lj.,& Živković, G. S.. (2016). Numerical simulation of latent heat storage with conductance enhancing fins. in Bulgarian Chemical Communications, 48, 199-205.
https://hdl.handle.net/21.15107/rcub_vinar_7151

Rudonja NR, Komatina MS, Antonijević DL, Živković GS. Numerical simulation of latent heat storage with conductance enhancing fins. in Bulgarian Chemical Communications. 2016;48:199-205.
https://hdl.handle.net/21.15107/rcub_vinar_7151 .

Rudonja, Nedzad R., Komatina, Mirko S., Antonijević, Dragi Lj., Živković, Goran S., "Numerical simulation of latent heat storage with conductance enhancing fins" in Bulgarian Chemical Communications, 48 (2016):199-205,
https://hdl.handle.net/21.15107/rcub_vinar_7151 .

TY  - CONF
AU  - Mladenović, Milica
AU  - Paprika, Milijana
AU  - Marinković, Ana
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11603
AB  - Usklađivanje potreba očuvanja životne sredine i rastućih energetskih potreba savremenog društva promoviše primenu biomase kao zamene za fosilna goriva i održivu opciju za ublažavanje emisije gasova staklene bašte. Poredniza prednosti upotrebe biomase u energetske svrhe, postoje i izvesni nedostaci, od kojih je i moguća relativno visoka emisija azotnih oksida, NOx prilikom sagorevanje ove vrste goriva. U radu su predstavljene mere denitrifikacije pri sagorevanju biomase - primarne i sekundarne. Akcenat u radu je stavljen na sekundarne mere denitrifikacije.
AB  - Aligning the need to preserve the environment and the growing energy needs of modern society promotes the use of biomass as a replacement for fossil fuels and viable option to mitigate greenhouse gas emissions. Besides a number of advantages of using biomass for energy purposes, there are certain disadvantages, one of which is possible relatively high emissions of nitrogen oxides, NOx, during the combustion of these fuels. The paper presents the denitrification measures during combustion of biomass - primary and secondary. The emphasis in this paper is placed on the secondary denitrification measures.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku
C3  - 29. Međunarodni kongres o procesnoj industriji - PROCESING ′16 : zbornik radova
T1  - Mere denitrifikacije pri sagorevanju biomase
T1  - Denitrification measures in biomass combustion
SP  - 173
EP  - 185
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11603
ER  - 

@conference{
author = "Mladenović, Milica and Paprika, Milijana and Marinković, Ana",
year = "2016",
abstract = "Usklađivanje potreba očuvanja životne sredine i rastućih energetskih potreba savremenog društva promoviše primenu biomase kao zamene za fosilna goriva i održivu opciju za ublažavanje emisije gasova staklene bašte. Poredniza prednosti upotrebe biomase u energetske svrhe, postoje i izvesni nedostaci, od kojih je i moguća relativno visoka emisija azotnih oksida, NOx prilikom sagorevanje ove vrste goriva. U radu su predstavljene mere denitrifikacije pri sagorevanju biomase - primarne i sekundarne. Akcenat u radu je stavljen na sekundarne mere denitrifikacije., Aligning the need to preserve the environment and the growing energy needs of modern society promotes the use of biomass as a replacement for fossil fuels and viable option to mitigate greenhouse gas emissions. Besides a number of advantages of using biomass for energy purposes, there are certain disadvantages, one of which is possible relatively high emissions of nitrogen oxides, NOx, during the combustion of these fuels. The paper presents the denitrification measures during combustion of biomass - primary and secondary. The emphasis in this paper is placed on the secondary denitrification measures.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku",
journal = "29. Međunarodni kongres o procesnoj industriji - PROCESING ′16 : zbornik radova",
title = "Mere denitrifikacije pri sagorevanju biomase, Denitrification measures in biomass combustion",
pages = "173-185",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11603"
}

Mladenović, M., Paprika, M.,& Marinković, A.. (2016). Mere denitrifikacije pri sagorevanju biomase. in 29. Međunarodni kongres o procesnoj industriji - PROCESING ′16 : zbornik radova
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku., 173-185.
https://hdl.handle.net/21.15107/rcub_vinar_11603

Mladenović M, Paprika M, Marinković A. Mere denitrifikacije pri sagorevanju biomase. in 29. Međunarodni kongres o procesnoj industriji - PROCESING ′16 : zbornik radova. 2016;:173-185.
https://hdl.handle.net/21.15107/rcub_vinar_11603 .

Mladenović, Milica, Paprika, Milijana, Marinković, Ana, "Mere denitrifikacije pri sagorevanju biomase" in 29. Međunarodni kongres o procesnoj industriji - PROCESING ′16 : zbornik radova (2016):173-185,
https://hdl.handle.net/21.15107/rcub_vinar_11603 .

TY  - JOUR
AU  - Erić, Aleksandar
AU  - Nemoda, Stevan
AU  - Dakić, Dragoljub V.
AU  - Repić, Branislav
AU  - Đurović, Dejan M.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1141
AB  - The paper presents results of experimental and numerical investigation addressing combustion of baled agricultural biomass in a 50 kW experimental furnace equipped with cigar burners. Experiments performed included measurements of all parameters deemed important for mass and energy balance, as well as parameters defining quality of the combustion process. Experimental results were compared with results of numerical simulations performed with previously developed CFD model. The model takes into account complex thermo mechanical combustion processes occurring in a porous layer of biomass bales and the surrounding fluid. The combustion process and the corresponding model were deemed stationary. Comparison of experimental and numerical results obtained through research presented in this paper showed satisfactory correspondence, leading to the conclusion that the model developed could be used for analysis of different effects associated with variations in process parameters and/or structural modifications in industrial biomass facilities. Mathematical model developed was also utilized to examine the impact of gas re-circulation on maximum temperatures in the combustion chamber. Gas re-circulation was found to have positive effect on the reduction of maximum temperature in the combustion chamber, as well as on the reduction of maximum temperature zone in the chamber. The conclusions made provided valuable inputs towards prevention of biomass ash sintering, which occurs at higher temperatures and negatively affects biomass combustion process.
T2  - Thermal Science
T1  - Experimental and Numerical Study on Combustion of Baled Biomass in Cigar Burners and Effects of Flue Gas Re-Circulation
VL  - 20
SP  - S151
EP  - S165
DO  - 10.2298/TSCI150827207E
ER  - 

@article{
author = "Erić, Aleksandar and Nemoda, Stevan and Dakić, Dragoljub V. and Repić, Branislav and Đurović, Dejan M.",
year = "2016",
abstract = "The paper presents results of experimental and numerical investigation addressing combustion of baled agricultural biomass in a 50 kW experimental furnace equipped with cigar burners. Experiments performed included measurements of all parameters deemed important for mass and energy balance, as well as parameters defining quality of the combustion process. Experimental results were compared with results of numerical simulations performed with previously developed CFD model. The model takes into account complex thermo mechanical combustion processes occurring in a porous layer of biomass bales and the surrounding fluid. The combustion process and the corresponding model were deemed stationary. Comparison of experimental and numerical results obtained through research presented in this paper showed satisfactory correspondence, leading to the conclusion that the model developed could be used for analysis of different effects associated with variations in process parameters and/or structural modifications in industrial biomass facilities. Mathematical model developed was also utilized to examine the impact of gas re-circulation on maximum temperatures in the combustion chamber. Gas re-circulation was found to have positive effect on the reduction of maximum temperature in the combustion chamber, as well as on the reduction of maximum temperature zone in the chamber. The conclusions made provided valuable inputs towards prevention of biomass ash sintering, which occurs at higher temperatures and negatively affects biomass combustion process.",
journal = "Thermal Science",
title = "Experimental and Numerical Study on Combustion of Baled Biomass in Cigar Burners and Effects of Flue Gas Re-Circulation",
volume = "20",
pages = "S151-S165",
doi = "10.2298/TSCI150827207E"
}

Erić, A., Nemoda, S., Dakić, D. V., Repić, B.,& Đurović, D. M.. (2016). Experimental and Numerical Study on Combustion of Baled Biomass in Cigar Burners and Effects of Flue Gas Re-Circulation. in Thermal Science, 20, S151-S165.
https://doi.org/10.2298/TSCI150827207E

Erić A, Nemoda S, Dakić DV, Repić B, Đurović DM. Experimental and Numerical Study on Combustion of Baled Biomass in Cigar Burners and Effects of Flue Gas Re-Circulation. in Thermal Science. 2016;20:S151-S165.
doi:10.2298/TSCI150827207E .

Erić, Aleksandar, Nemoda, Stevan, Dakić, Dragoljub V., Repić, Branislav, Đurović, Dejan M., "Experimental and Numerical Study on Combustion of Baled Biomass in Cigar Burners and Effects of Flue Gas Re-Circulation" in Thermal Science, 20 (2016):S151-S165,
https://doi.org/10.2298/TSCI150827207E . .

TY  - JOUR
AU  - Erić, Aleksandar
AU  - Komatina, M.
AU  - Nemoda, Stevan
AU  - Dakić, Dragoljub V.
AU  - Repić, Branislav
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/966
AB  - Modeling of transport phenomena in materials with porous bed features requires thermophysical properties, such as porosity, permeability and thermal conductivity be known. The paper presents experimental data obtained in the course of investigation focused on analysis of stagnant thermal conductivity of biomass. Experiments were conducted using a custom designed and constructed experimental setup and implementing original experimental procedure. Results obtained enabled stagnant thermal conductivity of biomass to be determined for different biomass porosity values. Analysis of the experimental data enabled functional dependence of stagnant thermal conductivity on porosity to be determined, with porosity varied in a range 0.50-0.85. Results obtained indicate that reduced bed porosity, down to the value of 0.65, causes stagnant thermal conductivity of the bed to be reduced. Further porosity reduction, below the value of 0.65, results in increased stagnant thermal conductivity of the bed. Experimental procedure developed shall be useful for gathering experimental data on different materials planned to be analyzed when examining transport phenomena occurring during combustion of biomass bales. In addition, data to be acquired shall be helpful in modeling the transport phenomena associated with combustion in porous beds. (C) 2015 Elsevier Ltd. All rights reserved.
PB  - Elsevier
T2  - Renewable and Sustainable Energy Reviews
T1  - Determination of thermal conductivity of baled agricultural biomass
VL  - 58
SP  - 876
EP  - 884
DO  - 10.1016/j.rser.2015.12.066
ER  - 

@article{
author = "Erić, Aleksandar and Komatina, M. and Nemoda, Stevan and Dakić, Dragoljub V. and Repić, Branislav",
year = "2016",
abstract = "Modeling of transport phenomena in materials with porous bed features requires thermophysical properties, such as porosity, permeability and thermal conductivity be known. The paper presents experimental data obtained in the course of investigation focused on analysis of stagnant thermal conductivity of biomass. Experiments were conducted using a custom designed and constructed experimental setup and implementing original experimental procedure. Results obtained enabled stagnant thermal conductivity of biomass to be determined for different biomass porosity values. Analysis of the experimental data enabled functional dependence of stagnant thermal conductivity on porosity to be determined, with porosity varied in a range 0.50-0.85. Results obtained indicate that reduced bed porosity, down to the value of 0.65, causes stagnant thermal conductivity of the bed to be reduced. Further porosity reduction, below the value of 0.65, results in increased stagnant thermal conductivity of the bed. Experimental procedure developed shall be useful for gathering experimental data on different materials planned to be analyzed when examining transport phenomena occurring during combustion of biomass bales. In addition, data to be acquired shall be helpful in modeling the transport phenomena associated with combustion in porous beds. (C) 2015 Elsevier Ltd. All rights reserved.",
publisher = "Elsevier",
journal = "Renewable and Sustainable Energy Reviews",
title = "Determination of thermal conductivity of baled agricultural biomass",
volume = "58",
pages = "876-884",
doi = "10.1016/j.rser.2015.12.066"
}

Erić, A., Komatina, M., Nemoda, S., Dakić, D. V.,& Repić, B.. (2016). Determination of thermal conductivity of baled agricultural biomass. in Renewable and Sustainable Energy Reviews
Elsevier., 58, 876-884.
https://doi.org/10.1016/j.rser.2015.12.066

Erić A, Komatina M, Nemoda S, Dakić DV, Repić B. Determination of thermal conductivity of baled agricultural biomass. in Renewable and Sustainable Energy Reviews. 2016;58:876-884.
doi:10.1016/j.rser.2015.12.066 .

Erić, Aleksandar, Komatina, M., Nemoda, Stevan, Dakić, Dragoljub V., Repić, Branislav, "Determination of thermal conductivity of baled agricultural biomass" in Renewable and Sustainable Energy Reviews, 58 (2016):876-884,
https://doi.org/10.1016/j.rser.2015.12.066 . .

TY  - CONF
AU  - Đurović, Dejan
AU  - Dakić, Dragoljub
AU  - Repić, Branislav
AU  - Paprika, Milijana
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11605
AB  - Institut „Vinča“ se greje iz centralne kotlarnice toplom vodom u primarnom krugu. U kotlarnici su instalisana četiri mazutna vrelovodna blok kotla ukupne snage od 9,65 MW. To je veoma zastareo sistem grejanja koji ima niz nedostataka. Međutim, promena tog sistema i eventualno prelazak na dvostepeni (primarni i sekundarni vrelovodni/toplovodni krugovi sa ugradnjom podstanica) je veoma skup poduhvat i u ovom trenutku se ne razmatra. U radu je sagledana mogućnost supstitucije postojećeg goriva (mazut) biomasom. Za tu svrhu bi se morao izgraditi novi kotao koji će sagorevati biomasu. Analiza sprovedena u ovom radu je pokazala da li je i u kojoj meri to isplativo, ekološki prihvatlјivo, energetski efikasnije, kao i koliko je naučno istraživački korisno. U radu je prikazana i analiza angažovane snage kotlarnice za dve izabrane grejne sezone, što može pomoći u određivanju potrebne instalisane snage novog kotla na biomasu. Takođe, u radu je prikazana i kompletna logistika neophodna za realizaciju korišćenja biomase kao goriva u sistemu centralnog grejanja instituta Vinča.
AB  - "Vinca" Institute is heated from a central boiler station using a hot water in the primary circuit. In the boiler room a four heavy fuel oil hot water block boilers were installed with total capacity of 9.65 MW. It is very outdated heating system which has a number of disadvantages. However, the change of the system and eventually change to a two-stage (primary and secondary hot water/hot water circuits with installation of substations) is a very expensive proposition and at this time is not considered. In the paper is investigated the possibilities of substitution of the existing fuel (heavy fuel oil) with biomass. For this purposes a new boiler which will burn biomass would be built.The analysis conducted in this paper has shown whether and to what extent is cost-effective, environmentally friendly, energy efficient, and how is useful from scientific and research point of view. In the paper has been presented the analysis for two selected heating season, which may help in determining the installed capacity of the new biomass boiler. Also, in the paper are presented a complete logistics system required for implementation of biomass usage as a fuel in heating system of the Vinca Institute.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku
C3  - 28. Međunarodni kongres o procesnoj industriji - PROCESING ′15 : zbornik radova
T1  - Tehnička i ekonomska opravdanost zamene postojećih kotlova na mazut novim kotlom na biomasu u okviru sistema grejanja Instituta Vinča
T1  - Technical and economic feasibilityof replacing the existing heavy fuel boilers with new biomass boiler within the heating system of the institute Vinča
SP  - 204
EP  - 213
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11605
ER  - 

@conference{
author = "Đurović, Dejan and Dakić, Dragoljub and Repić, Branislav and Paprika, Milijana",
year = "2015",
abstract = "Institut „Vinča“ se greje iz centralne kotlarnice toplom vodom u primarnom krugu. U kotlarnici su instalisana četiri mazutna vrelovodna blok kotla ukupne snage od 9,65 MW. To je veoma zastareo sistem grejanja koji ima niz nedostataka. Međutim, promena tog sistema i eventualno prelazak na dvostepeni (primarni i sekundarni vrelovodni/toplovodni krugovi sa ugradnjom podstanica) je veoma skup poduhvat i u ovom trenutku se ne razmatra. U radu je sagledana mogućnost supstitucije postojećeg goriva (mazut) biomasom. Za tu svrhu bi se morao izgraditi novi kotao koji će sagorevati biomasu. Analiza sprovedena u ovom radu je pokazala da li je i u kojoj meri to isplativo, ekološki prihvatlјivo, energetski efikasnije, kao i koliko je naučno istraživački korisno. U radu je prikazana i analiza angažovane snage kotlarnice za dve izabrane grejne sezone, što može pomoći u određivanju potrebne instalisane snage novog kotla na biomasu. Takođe, u radu je prikazana i kompletna logistika neophodna za realizaciju korišćenja biomase kao goriva u sistemu centralnog grejanja instituta Vinča., "Vinca" Institute is heated from a central boiler station using a hot water in the primary circuit. In the boiler room a four heavy fuel oil hot water block boilers were installed with total capacity of 9.65 MW. It is very outdated heating system which has a number of disadvantages. However, the change of the system and eventually change to a two-stage (primary and secondary hot water/hot water circuits with installation of substations) is a very expensive proposition and at this time is not considered. In the paper is investigated the possibilities of substitution of the existing fuel (heavy fuel oil) with biomass. For this purposes a new boiler which will burn biomass would be built.The analysis conducted in this paper has shown whether and to what extent is cost-effective, environmentally friendly, energy efficient, and how is useful from scientific and research point of view. In the paper has been presented the analysis for two selected heating season, which may help in determining the installed capacity of the new biomass boiler. Also, in the paper are presented a complete logistics system required for implementation of biomass usage as a fuel in heating system of the Vinca Institute.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku",
journal = "28. Međunarodni kongres o procesnoj industriji - PROCESING ′15 : zbornik radova",
title = "Tehnička i ekonomska opravdanost zamene postojećih kotlova na mazut novim kotlom na biomasu u okviru sistema grejanja Instituta Vinča, Technical and economic feasibilityof replacing the existing heavy fuel boilers with new biomass boiler within the heating system of the institute Vinča",
pages = "204-213",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11605"
}

Đurović, D., Dakić, D., Repić, B.,& Paprika, M.. (2015). Tehnička i ekonomska opravdanost zamene postojećih kotlova na mazut novim kotlom na biomasu u okviru sistema grejanja Instituta Vinča. in 28. Međunarodni kongres o procesnoj industriji - PROCESING ′15 : zbornik radova
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku., 204-213.
https://hdl.handle.net/21.15107/rcub_vinar_11605

Đurović D, Dakić D, Repić B, Paprika M. Tehnička i ekonomska opravdanost zamene postojećih kotlova na mazut novim kotlom na biomasu u okviru sistema grejanja Instituta Vinča. in 28. Međunarodni kongres o procesnoj industriji - PROCESING ′15 : zbornik radova. 2015;:204-213.
https://hdl.handle.net/21.15107/rcub_vinar_11605 .

Đurović, Dejan, Dakić, Dragoljub, Repić, Branislav, Paprika, Milijana, "Tehnička i ekonomska opravdanost zamene postojećih kotlova na mazut novim kotlom na biomasu u okviru sistema grejanja Instituta Vinča" in 28. Međunarodni kongres o procesnoj industriji - PROCESING ′15 : zbornik radova (2015):204-213,
https://hdl.handle.net/21.15107/rcub_vinar_11605 .

TY  - CONF
AU  - Mladenović, Milica
AU  - Dakić, Dragoljub
AU  - Nemoda, Stevan
AU  - Paprika, Milijana
AU  - Repić, Branislav
AU  - Živković, Goran
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11606
AB  - Uprkos činjenici da se upotreba biomase preporučuje sa stanovišta očuvanja životne sredine, usled značajno manje emisije štetnih gasova nego pri sagorevanju uglja, kao najzastupljenijeg domaćeg fosilnog goriva, veoma je značajno praćenje emisije iz dimnih gasova i dobro razumevanje procesa koji utiču na smanjenje koncentracije polutanata. Emisija azotnih oksida (NOx) je jedan od najvećih izazova u tom pogledu. Poznavanje emisije ovih oksida prilikom sagorevanja biomase je neophono radi uspotavljanja korektnih zakonskih normi u pogledu granične emisije i za razvoj što kvalitetnijih tehnologoja za sagorevanje ove vrste goriva. U radu su date izmerene koncentracije azotnih oksida prilikom sagorevanja više vrsta biomase pri stacionarnim uslovima rada eksperimentalnih i demonstraciono - industrijskih postrojenja koja pripadaju dvema različitim tehnologijama: cigaretno sagorevanje balirane slame i sagorevanje u fluidizovanom sloju, kao i sveobuhvatna analiza složenih uticaja na emisiju NOx-a.
AB  - Emissions of nitrogen oxidesat the biomass combustion
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku
C3  - 28. Međunarodni kongres o procesnoj industriji - PROCESING ′15 : zbornik radova
T1  - Emisija azotnih oksida pri sagorevanju biomase
T1  - Emissions of nitrogen oxidesat the biomass combustion
SP  - 214
EP  - 223
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11606
ER  - 

@conference{
author = "Mladenović, Milica and Dakić, Dragoljub and Nemoda, Stevan and Paprika, Milijana and Repić, Branislav and Živković, Goran",
year = "2015",
abstract = "Uprkos činjenici da se upotreba biomase preporučuje sa stanovišta očuvanja životne sredine, usled značajno manje emisije štetnih gasova nego pri sagorevanju uglja, kao najzastupljenijeg domaćeg fosilnog goriva, veoma je značajno praćenje emisije iz dimnih gasova i dobro razumevanje procesa koji utiču na smanjenje koncentracije polutanata. Emisija azotnih oksida (NOx) je jedan od najvećih izazova u tom pogledu. Poznavanje emisije ovih oksida prilikom sagorevanja biomase je neophono radi uspotavljanja korektnih zakonskih normi u pogledu granične emisije i za razvoj što kvalitetnijih tehnologoja za sagorevanje ove vrste goriva. U radu su date izmerene koncentracije azotnih oksida prilikom sagorevanja više vrsta biomase pri stacionarnim uslovima rada eksperimentalnih i demonstraciono - industrijskih postrojenja koja pripadaju dvema različitim tehnologijama: cigaretno sagorevanje balirane slame i sagorevanje u fluidizovanom sloju, kao i sveobuhvatna analiza složenih uticaja na emisiju NOx-a., Emissions of nitrogen oxidesat the biomass combustion",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku",
journal = "28. Međunarodni kongres o procesnoj industriji - PROCESING ′15 : zbornik radova",
title = "Emisija azotnih oksida pri sagorevanju biomase, Emissions of nitrogen oxidesat the biomass combustion",
pages = "214-223",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11606"
}

Mladenović, M., Dakić, D., Nemoda, S., Paprika, M., Repić, B.,& Živković, G.. (2015). Emisija azotnih oksida pri sagorevanju biomase. in 28. Međunarodni kongres o procesnoj industriji - PROCESING ′15 : zbornik radova
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku., 214-223.
https://hdl.handle.net/21.15107/rcub_vinar_11606

Mladenović M, Dakić D, Nemoda S, Paprika M, Repić B, Živković G. Emisija azotnih oksida pri sagorevanju biomase. in 28. Međunarodni kongres o procesnoj industriji - PROCESING ′15 : zbornik radova. 2015;:214-223.
https://hdl.handle.net/21.15107/rcub_vinar_11606 .

Mladenović, Milica, Dakić, Dragoljub, Nemoda, Stevan, Paprika, Milijana, Repić, Branislav, Živković, Goran, "Emisija azotnih oksida pri sagorevanju biomase" in 28. Međunarodni kongres o procesnoj industriji - PROCESING ′15 : zbornik radova (2015):214-223,
https://hdl.handle.net/21.15107/rcub_vinar_11606 .

TY  - JOUR
AU  - Đurović, Dejan R.
AU  - Nemoda, Stevan
AU  - Repić, Branislav
AU  - Dakić, Dragoljub V.
AU  - Adžić, Miroljub M.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/387
AB  - In this paper has been shown improvement of the existing furnace for biomass combustion in the way of improving energy efficiency and meeting environmental protection criteria. One of the main problems during baled biomass combustion process is high CO emission due to incomplete combustion of flue gases. By proper furnace dimensioning that problem can be avoided and also high investment costs can be reduced, since the cost of the furnace is 30-40% of total biomass plant costs. Two-dimensional turbulent flow model with homogeneous chemical reactions has been developed. Turbulent flow is considered using time averaging Navier-Stokes equations that are closed by k-epsilon turbulence model. Calculations based on the proposed models were conducted using commercial CFD package FLUENT. Accuracy of the model has been previously confirmed with experimental data obtained on the existing furnace. Comparative analysis of the results of modeling existing and proposed (improved) furnace has shown lower CO emission (more than 50% less CO emission) at the proposed furnace outlet. (C) 2014 Elsevier Ltd. All rights reserved.
T2  - Renewable Energy
T1  - Influence of biomass furnace volume change on flue gases burn out process
VL  - 76
SP  - 1
EP  - 6
DO  - 10.1016/j.renene.2014.11.007
ER  - 

@article{
author = "Đurović, Dejan R. and Nemoda, Stevan and Repić, Branislav and Dakić, Dragoljub V. and Adžić, Miroljub M.",
year = "2015",
abstract = "In this paper has been shown improvement of the existing furnace for biomass combustion in the way of improving energy efficiency and meeting environmental protection criteria. One of the main problems during baled biomass combustion process is high CO emission due to incomplete combustion of flue gases. By proper furnace dimensioning that problem can be avoided and also high investment costs can be reduced, since the cost of the furnace is 30-40% of total biomass plant costs. Two-dimensional turbulent flow model with homogeneous chemical reactions has been developed. Turbulent flow is considered using time averaging Navier-Stokes equations that are closed by k-epsilon turbulence model. Calculations based on the proposed models were conducted using commercial CFD package FLUENT. Accuracy of the model has been previously confirmed with experimental data obtained on the existing furnace. Comparative analysis of the results of modeling existing and proposed (improved) furnace has shown lower CO emission (more than 50% less CO emission) at the proposed furnace outlet. (C) 2014 Elsevier Ltd. All rights reserved.",
journal = "Renewable Energy",
title = "Influence of biomass furnace volume change on flue gases burn out process",
volume = "76",
pages = "1-6",
doi = "10.1016/j.renene.2014.11.007"
}

Đurović, D. R., Nemoda, S., Repić, B., Dakić, D. V.,& Adžić, M. M.. (2015). Influence of biomass furnace volume change on flue gases burn out process. in Renewable Energy, 76, 1-6.
https://doi.org/10.1016/j.renene.2014.11.007

Đurović DR, Nemoda S, Repić B, Dakić DV, Adžić MM. Influence of biomass furnace volume change on flue gases burn out process. in Renewable Energy. 2015;76:1-6.
doi:10.1016/j.renene.2014.11.007 .

Đurović, Dejan R., Nemoda, Stevan, Repić, Branislav, Dakić, Dragoljub V., Adžić, Miroljub M., "Influence of biomass furnace volume change on flue gases burn out process" in Renewable Energy, 76 (2015):1-6,
https://doi.org/10.1016/j.renene.2014.11.007 . .

TY  - CONF
AU  - Paprika, Milijana
AU  - Repić, Branislav
AU  - Dakić, Dragoljub
AU  - Mladenović, Milica
AU  - Erić, Aleksandar
AU  - Đurović, Dejan
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11607
AB  - Održivi razvoj podrazumeva sve veću potrebu za korišćenjem obnovljivih izvora energije, a biomasa predstavlja jedan najvećih potencijala ove vrste u Srbiji. U Laboratoriji za termotehniku i energetiku Instituta „Vinča“ razvijena je tehnologija cigaretnog sagorevanja balirane poljoprivredne biomase, a na osnovu nje izgrađen industrijski kotao toplotne snage 1,5 MW u okviru korporacije PKB Beograd za zagrevanje 1 ha plastenika. Gorivo su velike četvrtaste bale dimenzija 2,0x1,2x0,7 m, težine 200-250 kg. Konstrukcija i primenjena tehnologija sagorevanja rezultirali su kotlom približnih karakteristika kao što su kotlovi sličnih snaga koji koriste tečna ili gasovita goriva. Zbog toga ovaj kotao mora imati savremeni sistem regulacije snage. Za određenu snagu postrojenja sistem za automatsko upravljanje kotla treba da obezbedi kontinualno doziranje goriva, uz prateće promene vazduha za sagorevanje, odnosa primarnog i sekundarnog vazduha i protoka dimnog gasa. Mikroprocesorski računar upravlja snagom postrojenja, pri čemu se u isto vreme vrši kontinualno merenje i prikupljanje neophodnih podataka za periodične analize rada postrojenja. U radu su prikazani osnovni principi razvijenog upravljačkog sistema kotla od 1,5 MW na biomasu, kao i praktični rezultati primene ovog sistema.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku
C3  - 27. Međunarodni kongres o procesnoj industriji - PROCESING ′14 : zbornik radova
T1  - Osnovi sistema za automatsko upravljanje industrijskog kotla na biomasu
T1  - Fundamentals of automatic control system of an industrial biomass boiler
SP  - 1
EP  - 5
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11607
ER  - 

@conference{
author = "Paprika, Milijana and Repić, Branislav and Dakić, Dragoljub and Mladenović, Milica and Erić, Aleksandar and Đurović, Dejan",
year = "2014",
abstract = "Održivi razvoj podrazumeva sve veću potrebu za korišćenjem obnovljivih izvora energije, a biomasa predstavlja jedan najvećih potencijala ove vrste u Srbiji. U Laboratoriji za termotehniku i energetiku Instituta „Vinča“ razvijena je tehnologija cigaretnog sagorevanja balirane poljoprivredne biomase, a na osnovu nje izgrađen industrijski kotao toplotne snage 1,5 MW u okviru korporacije PKB Beograd za zagrevanje 1 ha plastenika. Gorivo su velike četvrtaste bale dimenzija 2,0x1,2x0,7 m, težine 200-250 kg. Konstrukcija i primenjena tehnologija sagorevanja rezultirali su kotlom približnih karakteristika kao što su kotlovi sličnih snaga koji koriste tečna ili gasovita goriva. Zbog toga ovaj kotao mora imati savremeni sistem regulacije snage. Za određenu snagu postrojenja sistem za automatsko upravljanje kotla treba da obezbedi kontinualno doziranje goriva, uz prateće promene vazduha za sagorevanje, odnosa primarnog i sekundarnog vazduha i protoka dimnog gasa. Mikroprocesorski računar upravlja snagom postrojenja, pri čemu se u isto vreme vrši kontinualno merenje i prikupljanje neophodnih podataka za periodične analize rada postrojenja. U radu su prikazani osnovni principi razvijenog upravljačkog sistema kotla od 1,5 MW na biomasu, kao i praktični rezultati primene ovog sistema.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku",
journal = "27. Međunarodni kongres o procesnoj industriji - PROCESING ′14 : zbornik radova",
title = "Osnovi sistema za automatsko upravljanje industrijskog kotla na biomasu, Fundamentals of automatic control system of an industrial biomass boiler",
pages = "1-5",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11607"
}

Paprika, M., Repić, B., Dakić, D., Mladenović, M., Erić, A.,& Đurović, D.. (2014). Osnovi sistema za automatsko upravljanje industrijskog kotla na biomasu. in 27. Međunarodni kongres o procesnoj industriji - PROCESING ′14 : zbornik radova
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku., 1-5.
https://hdl.handle.net/21.15107/rcub_vinar_11607

Paprika M, Repić B, Dakić D, Mladenović M, Erić A, Đurović D. Osnovi sistema za automatsko upravljanje industrijskog kotla na biomasu. in 27. Međunarodni kongres o procesnoj industriji - PROCESING ′14 : zbornik radova. 2014;:1-5.
https://hdl.handle.net/21.15107/rcub_vinar_11607 .

Paprika, Milijana, Repić, Branislav, Dakić, Dragoljub, Mladenović, Milica, Erić, Aleksandar, Đurović, Dejan, "Osnovi sistema za automatsko upravljanje industrijskog kotla na biomasu" in 27. Međunarodni kongres o procesnoj industriji - PROCESING ′14 : zbornik radova (2014):1-5,
https://hdl.handle.net/21.15107/rcub_vinar_11607 .

TY  - CONF
AU  - Mladenović, Milica
AU  - Dakić, Dragoljub
AU  - Nemoda, Stevan
AU  - Paprika, Milijana
AU  - Erić, Aleksandar
AU  - Repić, Branislav
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11608
AB  - Savremeno društvo i industrija, gde su sekundarni proizvodi neminovnost, je sve veći generator otpada najrazličitije prirode. U mnogim slučajevima ove materije se ne mogu reciklirati, pa je pitanje njihovog daljeg tretmana/deponovanja, zajedno sa pitanjem zaštite ljudskog zdravlja i životne sredine sve aktuelnije. Održivo upravljanje otpadom doprinosi smanjenju njegove generacije i iscrpljivanja prirodnih resursa (materijalnih i energetskih) i obuhvata metode koje spadaju u kategoriju "obnovljivih izvora". Materijalna i energetska iskorišćenost otpada je poželjnija opcija naspram konačnog odlaganja otpada. Jedan od načina za istovremeno ispunjavanje i održivosti domaće energetike je energetsko iskorišćenje ovih nekonvencionalnih, otpadnih goriva, primenom tehnologije sagorevanja u fluidizovanom sloju (FS). U radu su prikazani rezultati ispitivanja sagorevanja više vrsta čvrstih i tečnih otpadnih materija, obavljeni na industrijsko-demonstracionom FS kotlu. Određivano je temperatursko polje po visini ložišta, analiziran sastav dimnih gasova na izlazu iz ložišta i ostali parametri sagorevanja predmetnih goriva. Analizom dobijenih rezultata data je ocena njihove podobnosti sagorevanja u FS uz mogućnost iskorišćenja njihovog energetskog potencijala.
AB  - Modern society and industry, where secondary products are inevitable, are the ever increasing generators of the most different types of waste. In many cases, these substances may not be recycled and, therefore, the question of their treatment/disposal and the question of the health and environment protection are increasingly topical issues. The sustainable waste management contributes to the reduction of waste generation and depletion of natural resources (material and energy resources) and comprises the methods that are included in the category of „renewable sources“. Material and energy utilization of waste is a more favourable option in comparison to the definite (final) waste disposal. One of the ways to meet demands and, at the same time, to provide sustainability of the domestic energy sector is the energy utilization of these unconventional, waste fuels, by using the technology of fluidized bed combustion. This paper includes the results of testing the combustion of several types of solid and liquid waste substances, performed on the industrial-demo boiler with a fluidized bed. The temperature field was determined according to the firing height, the composition of flue gases was analyzed at the firing outlet and other parameters of combustion of the fuels concerned were also analyzed. By the analysis of obtained results, an assessment was given to show their suitability for combustion in a fluidized bed with a possibility to use their energy potential.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku
C3  - 27. Međunarodni kongres o procesnoj industriji - PROCESING ′14 : zbornik radova
T1  - Tehnologija korišćenja različitih otpadnih goriva sagorevanjem u fluidizovanom sloju
T1  - Technology of use of various waste fuels  for fluidized bed combustion
SP  - 1
EP  - 7
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11608
ER  - 

@conference{
author = "Mladenović, Milica and Dakić, Dragoljub and Nemoda, Stevan and Paprika, Milijana and Erić, Aleksandar and Repić, Branislav",
year = "2014",
abstract = "Savremeno društvo i industrija, gde su sekundarni proizvodi neminovnost, je sve veći generator otpada najrazličitije prirode. U mnogim slučajevima ove materije se ne mogu reciklirati, pa je pitanje njihovog daljeg tretmana/deponovanja, zajedno sa pitanjem zaštite ljudskog zdravlja i životne sredine sve aktuelnije. Održivo upravljanje otpadom doprinosi smanjenju njegove generacije i iscrpljivanja prirodnih resursa (materijalnih i energetskih) i obuhvata metode koje spadaju u kategoriju "obnovljivih izvora". Materijalna i energetska iskorišćenost otpada je poželjnija opcija naspram konačnog odlaganja otpada. Jedan od načina za istovremeno ispunjavanje i održivosti domaće energetike je energetsko iskorišćenje ovih nekonvencionalnih, otpadnih goriva, primenom tehnologije sagorevanja u fluidizovanom sloju (FS). U radu su prikazani rezultati ispitivanja sagorevanja više vrsta čvrstih i tečnih otpadnih materija, obavljeni na industrijsko-demonstracionom FS kotlu. Određivano je temperatursko polje po visini ložišta, analiziran sastav dimnih gasova na izlazu iz ložišta i ostali parametri sagorevanja predmetnih goriva. Analizom dobijenih rezultata data je ocena njihove podobnosti sagorevanja u FS uz mogućnost iskorišćenja njihovog energetskog potencijala., Modern society and industry, where secondary products are inevitable, are the ever increasing generators of the most different types of waste. In many cases, these substances may not be recycled and, therefore, the question of their treatment/disposal and the question of the health and environment protection are increasingly topical issues. The sustainable waste management contributes to the reduction of waste generation and depletion of natural resources (material and energy resources) and comprises the methods that are included in the category of „renewable sources“. Material and energy utilization of waste is a more favourable option in comparison to the definite (final) waste disposal. One of the ways to meet demands and, at the same time, to provide sustainability of the domestic energy sector is the energy utilization of these unconventional, waste fuels, by using the technology of fluidized bed combustion. This paper includes the results of testing the combustion of several types of solid and liquid waste substances, performed on the industrial-demo boiler with a fluidized bed. The temperature field was determined according to the firing height, the composition of flue gases was analyzed at the firing outlet and other parameters of combustion of the fuels concerned were also analyzed. By the analysis of obtained results, an assessment was given to show their suitability for combustion in a fluidized bed with a possibility to use their energy potential.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku",
journal = "27. Međunarodni kongres o procesnoj industriji - PROCESING ′14 : zbornik radova",
title = "Tehnologija korišćenja različitih otpadnih goriva sagorevanjem u fluidizovanom sloju, Technology of use of various waste fuels  for fluidized bed combustion",
pages = "1-7",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11608"
}

Mladenović, M., Dakić, D., Nemoda, S., Paprika, M., Erić, A.,& Repić, B.. (2014). Tehnologija korišćenja različitih otpadnih goriva sagorevanjem u fluidizovanom sloju. in 27. Međunarodni kongres o procesnoj industriji - PROCESING ′14 : zbornik radova
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku., 1-7.
https://hdl.handle.net/21.15107/rcub_vinar_11608

Mladenović M, Dakić D, Nemoda S, Paprika M, Erić A, Repić B. Tehnologija korišćenja različitih otpadnih goriva sagorevanjem u fluidizovanom sloju. in 27. Međunarodni kongres o procesnoj industriji - PROCESING ′14 : zbornik radova. 2014;:1-7.
https://hdl.handle.net/21.15107/rcub_vinar_11608 .

Mladenović, Milica, Dakić, Dragoljub, Nemoda, Stevan, Paprika, Milijana, Erić, Aleksandar, Repić, Branislav, "Tehnologija korišćenja različitih otpadnih goriva sagorevanjem u fluidizovanom sloju" in 27. Međunarodni kongres o procesnoj industriji - PROCESING ′14 : zbornik radova (2014):1-7,
https://hdl.handle.net/21.15107/rcub_vinar_11608 .

TY  - CONF
AU  - Repić, Branislav
AU  - Dakić, Dragoljub
AU  - Đurović, Dejan
AU  - Erić, Aleksandar
AU  - Mladenović, Milica
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11609
AB  - Za sagorevanje biomase iz poljoprivredne proizvodnje moguće je koristiti više tehnologija. Jedna od njih, koja je u potpunosti razvijena kod nas, je cigaretno sagorevanje celih bala biomase. Za uspešno sagorevanje biomase u obliku bala neophodno je njihovo kontinualno i automatsko doziranje. U radu je prikazan razvijen uređaj za doziranje koji obezbeđuje kontinualno, kontrolisano i potpuno sagorevanje balirane biomase iz poljoprivredne proizvodnje. Biomasa je u formi malih bala koje su paralelopipednog oblika dimenzija 40x50x80 cm. Pod malim balama podrazumevaju se one sa kojima se, zbog njihove težine od 12-15 kg uglavnom ručno manipuliše, što znači da se ne zahteva mehanizovano upravljanje balama. Kontinualno doziranje biomase ostvaruje se uvođenjem bala biomase iz spremišta bala, u koji se može smestiti više bala biomase poređanih jedna iznad druge, u uvodni kanal korišćenjem klip cilindara koji služe za držanje bala, i daljim kontinualnim doziranjem bala u ložište kotla korišćenjem zupčaste letve koja se pokreće uz pomoć elektromotora. Proizvedena toplota od sagorevanja biomase odvodi se do korisnika ili se skladišti u odgovarajućem akumulatoru toplote.
AB  - For burning of biomass obtained from agricultural production it is possible to use several technologies. One of them, fully developed in this country, isa cigarette burning of whole biomass bales. For successful burning of biomass in the form of bales, it is necessary to ensure their continuous and automatic dosing. The paper includes a presentation of a dosing unit or device that enables continuous, controlled and full burning of baled biomass from agricultural production. Biomass is in the form of small bales of parallelepiped shape, having the following dimensions: 40x50x80 cm. Small bales are those that are handled manually, due to their weight rangingfrom 12 to 15 kg, which means that there is no requirement for mechanized control of bales. Continuous dosing of biomass is obtained by feeding biomass bales from the storage (biomass yard), in which it is possible to put several biomass bales one above the other, into the introduction channel by using piston cylinders that serve for bale holding, and by further continuous dosing of bales to the firing of the boiler by using the gear batten that is driven by an electromotor. Heat produced from biomass burning may be delivered to users or may be stored in the appropriate heat storage.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku
C3  - 27. Međunarodni kongres o procesnoj industriji - PROCESING ′14 : zbornik radova
T1  - Razvoj sistema za kontinualno uvođenje malih bala kod kotlova koji koriste baliranu biomasu
T1  - Development of small bale feeding system for continuous introduction at boilers using baled biomass
SP  - 1
EP  - 7
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11609
ER  - 

@conference{
author = "Repić, Branislav and Dakić, Dragoljub and Đurović, Dejan and Erić, Aleksandar and Mladenović, Milica",
year = "2014",
abstract = "Za sagorevanje biomase iz poljoprivredne proizvodnje moguće je koristiti više tehnologija. Jedna od njih, koja je u potpunosti razvijena kod nas, je cigaretno sagorevanje celih bala biomase. Za uspešno sagorevanje biomase u obliku bala neophodno je njihovo kontinualno i automatsko doziranje. U radu je prikazan razvijen uređaj za doziranje koji obezbeđuje kontinualno, kontrolisano i potpuno sagorevanje balirane biomase iz poljoprivredne proizvodnje. Biomasa je u formi malih bala koje su paralelopipednog oblika dimenzija 40x50x80 cm. Pod malim balama podrazumevaju se one sa kojima se, zbog njihove težine od 12-15 kg uglavnom ručno manipuliše, što znači da se ne zahteva mehanizovano upravljanje balama. Kontinualno doziranje biomase ostvaruje se uvođenjem bala biomase iz spremišta bala, u koji se može smestiti više bala biomase poređanih jedna iznad druge, u uvodni kanal korišćenjem klip cilindara koji služe za držanje bala, i daljim kontinualnim doziranjem bala u ložište kotla korišćenjem zupčaste letve koja se pokreće uz pomoć elektromotora. Proizvedena toplota od sagorevanja biomase odvodi se do korisnika ili se skladišti u odgovarajućem akumulatoru toplote., For burning of biomass obtained from agricultural production it is possible to use several technologies. One of them, fully developed in this country, isa cigarette burning of whole biomass bales. For successful burning of biomass in the form of bales, it is necessary to ensure their continuous and automatic dosing. The paper includes a presentation of a dosing unit or device that enables continuous, controlled and full burning of baled biomass from agricultural production. Biomass is in the form of small bales of parallelepiped shape, having the following dimensions: 40x50x80 cm. Small bales are those that are handled manually, due to their weight rangingfrom 12 to 15 kg, which means that there is no requirement for mechanized control of bales. Continuous dosing of biomass is obtained by feeding biomass bales from the storage (biomass yard), in which it is possible to put several biomass bales one above the other, into the introduction channel by using piston cylinders that serve for bale holding, and by further continuous dosing of bales to the firing of the boiler by using the gear batten that is driven by an electromotor. Heat produced from biomass burning may be delivered to users or may be stored in the appropriate heat storage.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku",
journal = "27. Međunarodni kongres o procesnoj industriji - PROCESING ′14 : zbornik radova",
title = "Razvoj sistema za kontinualno uvođenje malih bala kod kotlova koji koriste baliranu biomasu, Development of small bale feeding system for continuous introduction at boilers using baled biomass",
pages = "1-7",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11609"
}

Repić, B., Dakić, D., Đurović, D., Erić, A.,& Mladenović, M.. (2014). Razvoj sistema za kontinualno uvođenje malih bala kod kotlova koji koriste baliranu biomasu. in 27. Međunarodni kongres o procesnoj industriji - PROCESING ′14 : zbornik radova
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku., 1-7.
https://hdl.handle.net/21.15107/rcub_vinar_11609

Repić B, Dakić D, Đurović D, Erić A, Mladenović M. Razvoj sistema za kontinualno uvođenje malih bala kod kotlova koji koriste baliranu biomasu. in 27. Međunarodni kongres o procesnoj industriji - PROCESING ′14 : zbornik radova. 2014;:1-7.
https://hdl.handle.net/21.15107/rcub_vinar_11609 .

Repić, Branislav, Dakić, Dragoljub, Đurović, Dejan, Erić, Aleksandar, Mladenović, Milica, "Razvoj sistema za kontinualno uvođenje malih bala kod kotlova koji koriste baliranu biomasu" in 27. Međunarodni kongres o procesnoj industriji - PROCESING ′14 : zbornik radova (2014):1-7,
https://hdl.handle.net/21.15107/rcub_vinar_11609 .

TY  - JOUR
AU  - Stakic, Milan
AU  - Cvetinović, Dejan
AU  - Škobalj, Predrag D.
AU  - Spasojević, Vuk D.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/243
AB  - Despite benefiting from vast fuel reserves, combustion of low-rank coals is commonly characterized by low thermal efficiency and high pollutant emissions, partly due to high moisture content of the coals in question. Thus, removal of moisture from low-rank coals is deemed an important quality upgrading method. The paper provides an overview of the current status of low-rank coal upgrading technologies, particularly with respect to utilization of drying and dewatering procedures. In order to examine the influence of relevant parameters on the moisture removal process, a model of convective coal drying in a packed, as well as in a fluid bed combustion arrangement, is developed and presented. Product-specific data (intraparticle mass transfer, gas-solid moisture equilibrium) related to the coal variety addressed herein (lignite) are obtained through preliminary investigations. Effective thermal conductivity of the packed bed as defined by Zehner/Bauer/Schlunder is used to define heat transfer mechanisms occurring in the packed bed. Similar two-phase fluidization model has been validated for different types of biomaterials. (C) 2014 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
T2  - Chemical Engineering Research and Design
T1  - An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies
VL  - 92
IS  - 11
SP  - 2383
EP  - 2395
DO  - 10.1016/j.cherd.2014.02.032
ER  - 

@article{
author = "Stakic, Milan and Cvetinović, Dejan and Škobalj, Predrag D. and Spasojević, Vuk D.",
year = "2014",
abstract = "Despite benefiting from vast fuel reserves, combustion of low-rank coals is commonly characterized by low thermal efficiency and high pollutant emissions, partly due to high moisture content of the coals in question. Thus, removal of moisture from low-rank coals is deemed an important quality upgrading method. The paper provides an overview of the current status of low-rank coal upgrading technologies, particularly with respect to utilization of drying and dewatering procedures. In order to examine the influence of relevant parameters on the moisture removal process, a model of convective coal drying in a packed, as well as in a fluid bed combustion arrangement, is developed and presented. Product-specific data (intraparticle mass transfer, gas-solid moisture equilibrium) related to the coal variety addressed herein (lignite) are obtained through preliminary investigations. Effective thermal conductivity of the packed bed as defined by Zehner/Bauer/Schlunder is used to define heat transfer mechanisms occurring in the packed bed. Similar two-phase fluidization model has been validated for different types of biomaterials. (C) 2014 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.",
journal = "Chemical Engineering Research and Design",
title = "An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies",
volume = "92",
number = "11",
pages = "2383-2395",
doi = "10.1016/j.cherd.2014.02.032"
}

Stakic, M., Cvetinović, D., Škobalj, P. D.,& Spasojević, V. D.. (2014). An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies. in Chemical Engineering Research and Design, 92(11), 2383-2395.
https://doi.org/10.1016/j.cherd.2014.02.032

Stakic M, Cvetinović D, Škobalj PD, Spasojević VD. An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies. in Chemical Engineering Research and Design. 2014;92(11):2383-2395.
doi:10.1016/j.cherd.2014.02.032 .

Stakic, Milan, Cvetinović, Dejan, Škobalj, Predrag D., Spasojević, Vuk D., "An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies" in Chemical Engineering Research and Design, 92, no. 11 (2014):2383-2395,
https://doi.org/10.1016/j.cherd.2014.02.032 . .