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  - Mladenović, Milica R.
AU  - Nemoda, Stevan
AU  - Paprika, Milijana
AU  - Marinković, Ana D.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8986
AB  - In Laboratory for Thermal Engineering and Energy of Institute Vinca, University of Belgrade, a 2-D CFD modeling procedure of numerical simulation of unconventional liquid fuel combustion in bubbling fluidized bed has been developed. This procedure is based on a two-fluid Euler-Euler approach modeling a fluidized bed with the determination of the velocities field of gas and particulates in two-phase, granular flows, analog to the kinetic theory of gases. This model describes in detail the unsteady motion of gas and solid phases, the formation and movement of bubbles with the combustion process in the fluidized bed, but temperature profiles calculated by the bed height differ to some extent from the experimentally obtained profiles. This discrepancy is probably due to the inability of a two-fluid CFD model to give a realistic simulation of the liquid fuel mixing in a fluidized bed. Therefore, an analytical model has been developed, where one of the basic assumptions is that the particles are mixed in the vertical direction of fluidized bed mainly by the bubble wakes. The proposed zonal type of calculating procedure is based on Davidson and Harrison two-phase model of the bubbling fluidized bed, where fluidized bed is divided into zones within which material and energy balances are set.
T2  - Thermal Science
T1  - Application of analytical and CFD models of liquid fuels combustion in a fluidized bed
VL  - 23
IS  - Suppl. 5
SP  - 1627
EP  - 1636
DO  - 10.2298/TSCI180226317M
ER  - 

@article{
author = "Mladenović, Milica R. and Nemoda, Stevan and Paprika, Milijana and Marinković, Ana D.",
year = "2019",
abstract = "In Laboratory for Thermal Engineering and Energy of Institute Vinca, University of Belgrade, a 2-D CFD modeling procedure of numerical simulation of unconventional liquid fuel combustion in bubbling fluidized bed has been developed. This procedure is based on a two-fluid Euler-Euler approach modeling a fluidized bed with the determination of the velocities field of gas and particulates in two-phase, granular flows, analog to the kinetic theory of gases. This model describes in detail the unsteady motion of gas and solid phases, the formation and movement of bubbles with the combustion process in the fluidized bed, but temperature profiles calculated by the bed height differ to some extent from the experimentally obtained profiles. This discrepancy is probably due to the inability of a two-fluid CFD model to give a realistic simulation of the liquid fuel mixing in a fluidized bed. Therefore, an analytical model has been developed, where one of the basic assumptions is that the particles are mixed in the vertical direction of fluidized bed mainly by the bubble wakes. The proposed zonal type of calculating procedure is based on Davidson and Harrison two-phase model of the bubbling fluidized bed, where fluidized bed is divided into zones within which material and energy balances are set.",
journal = "Thermal Science",
title = "Application of analytical and CFD models of liquid fuels combustion in a fluidized bed",
volume = "23",
number = "Suppl. 5",
pages = "1627-1636",
doi = "10.2298/TSCI180226317M"
}

Mladenović, M. R., Nemoda, S., Paprika, M.,& Marinković, A. D.. (2019). Application of analytical and CFD models of liquid fuels combustion in a fluidized bed. in Thermal Science, 23(Suppl. 5), 1627-1636.
https://doi.org/10.2298/TSCI180226317M

Mladenović MR, Nemoda S, Paprika M, Marinković AD. Application of analytical and CFD models of liquid fuels combustion in a fluidized bed. in Thermal Science. 2019;23(Suppl. 5):1627-1636.
doi:10.2298/TSCI180226317M .

Mladenović, Milica R., Nemoda, Stevan, Paprika, Milijana, Marinković, Ana D., "Application of analytical and CFD models of liquid fuels combustion in a fluidized bed" in Thermal Science, 23, no. Suppl. 5 (2019):1627-1636,
https://doi.org/10.2298/TSCI180226317M . .

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  - Paprika, Milijana
AU  - Mladenović, Milica R.
AU  - Marinković, Ana D.
AU  - Živković, Goran S.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7696
AB  - Lately, experimental methods and numerical simulations are equally employed for the purpose of developing incineration bubbling fluidized bed (BFB) facilities. The paper presents the results of the 2-D CFD model of liquid fuel combustion in BFB, applied for numerical simulation of a fluidized bed furnace. The numerical procedure is based on the two-fluid Euler-Euler approach, where the velocity field of the gas and particles are modeled in analogy to the kinetic gas theory. The proposed numerical model comprises energy equations for all three phases (gas, inert fluidized particles, and liquid fuel), as well as the transport equations of chemical components that are participating in the reactions of combustion and devolatilization. The model equations are solved applying a commercial CFD package, whereby the user submodels were developed for heterogenic fluidized bed combustion of liquid fuels and for interphase drag forces for all three phases. The results of temperature field calculation were compared with the experiments, carried out in-house, on a BFB pilot facility. The numerical experiments, based on the proposed mathematical model, have been used for the purposes of analyzing the impacts of various fuel flow rates, and fluidization numbers, on the combustion efficiency and on the temperature fields in the combustion zone.
T2  - Thermal Science
T1  - Two-dimensional mathematical model of liquid fuel combustion in bubbling fluidized bed applied for a fluidized furnace numerical simulation
VL  - 22
IS  - 2
SP  - 1121
EP  - 1135
DO  - 10.2298/TSCI170922307N
ER  - 

@article{
author = "Nemoda, Stevan and Paprika, Milijana and Mladenović, Milica R. and Marinković, Ana D. and Živković, Goran S.",
year = "2018",
abstract = "Lately, experimental methods and numerical simulations are equally employed for the purpose of developing incineration bubbling fluidized bed (BFB) facilities. The paper presents the results of the 2-D CFD model of liquid fuel combustion in BFB, applied for numerical simulation of a fluidized bed furnace. The numerical procedure is based on the two-fluid Euler-Euler approach, where the velocity field of the gas and particles are modeled in analogy to the kinetic gas theory. The proposed numerical model comprises energy equations for all three phases (gas, inert fluidized particles, and liquid fuel), as well as the transport equations of chemical components that are participating in the reactions of combustion and devolatilization. The model equations are solved applying a commercial CFD package, whereby the user submodels were developed for heterogenic fluidized bed combustion of liquid fuels and for interphase drag forces for all three phases. The results of temperature field calculation were compared with the experiments, carried out in-house, on a BFB pilot facility. The numerical experiments, based on the proposed mathematical model, have been used for the purposes of analyzing the impacts of various fuel flow rates, and fluidization numbers, on the combustion efficiency and on the temperature fields in the combustion zone.",
journal = "Thermal Science",
title = "Two-dimensional mathematical model of liquid fuel combustion in bubbling fluidized bed applied for a fluidized furnace numerical simulation",
volume = "22",
number = "2",
pages = "1121-1135",
doi = "10.2298/TSCI170922307N"
}

Nemoda, S., Paprika, M., Mladenović, M. R., Marinković, A. D.,& Živković, G. S.. (2018). Two-dimensional mathematical model of liquid fuel combustion in bubbling fluidized bed applied for a fluidized furnace numerical simulation. in Thermal Science, 22(2), 1121-1135.
https://doi.org/10.2298/TSCI170922307N

Nemoda S, Paprika M, Mladenović MR, Marinković AD, Živković GS. Two-dimensional mathematical model of liquid fuel combustion in bubbling fluidized bed applied for a fluidized furnace numerical simulation. in Thermal Science. 2018;22(2):1121-1135.
doi:10.2298/TSCI170922307N .

Nemoda, Stevan, Paprika, Milijana, Mladenović, Milica R., Marinković, Ana D., Živković, Goran S., "Two-dimensional mathematical model of liquid fuel combustion in bubbling fluidized bed applied for a fluidized furnace numerical simulation" in Thermal Science, 22, no. 2 (2018):1121-1135,
https://doi.org/10.2298/TSCI170922307N . .

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  - CONF
AU  - Nemoda, Stevan
AU  - Mladenović, Milica
AU  - Paprika, Milijana
AU  - Repić, Branislav
AU  - Marinković, Ana
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11601
AB  - U radu je predložen dvodimenzijski model numeričke simulacije sagorevanja tečnih goriva u flu-idizovanom sloju, koji se zasniva na dvo fluidnom Euler – Euler pristupom modeliranja fluidizovanog sloja uz određivanje polja brzina gasa i čestica u dvofaznim, granularnim tokovima zasnovane na ana-logiji sa kinetičkom teorijom gasova (KTGF). Sveobuhvatan model kompleksnih procesa u fluidizacio-noj komori sagorevanja podrazumeva, pored određivanja polja brzina gasne i čestične faze, inkorpori-ranje energetskih jednačina gasne i čestične faze, kao i transportnih jednačina hemijskih komponenti sa izvornim članovima usled konverzije komponenata. Brojni numerički eksperimenti pokazuju da je izbor koeficijenata u izrazima za sile trenja prilikom interakcije faza ima izuzetan značaj i mora se sprovesti za svaki, značajno različit režim fluidizacije, posebno. Urađene su serije numeričkih eksperi-menata sa simulacijom procesa sagorevanja u FS sa i bez značajnog sadržaja vode u gorivu. Proračuni su nestacionarni, a modelirani vremenski period odgovara vremenu za koje gas prođe kroz celu visinu reaktora. Numerički eksperimenti, na osnovu predloženog matematičkog modela, su takođe korišćeni za potrebe analize uticaja različitih snaga pri kojima radi reaktor, kao i različitih stepena fluidizacije, na efikasnost sagorevanja kao i na profile temperatura u zoni sagorevanja.
AB  - A comprehensive 2D numerical model of the bubbled fluidized bed with combustion of liquid fuelsis proposed in the paper. The proposed numerical model is based on the Eulerian–Eulerian granular flow modeling with the kinetic theory of granular flow. The model includes the following basic governing equations: the continuity equations of the solid andgas phase, the momentum conservation equations of the gas and solid phase, the energy equations of gas, and the solid phase and conservation equations for chemical components. The choice of the semi empirical constants of the inter-phase interaction drag force model is significant and these constants must be adjusted for each particular regime of fluidiza-tion. Presented numerical experiments primarily were applied to verification of the assumptions about the impact of water content in a liquid fuel on FB combustion intensity. The numerical experiments, based on the proposed mathematical model, also have been used for the purposes of analyzing the im-pacts of various reactor powers as well as fluidization numbers, on the combustion efficiency and on combustion zone temperature fields
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  - 2D CFD numerička simulacija fluidizacione komore sagorevanja bazirane na Euler-Euler granularnom modelu
T1  - 2D fluidized combustion chamber cfd simulation based on Euler-Euler granular flow model
SP  - 277
EP  - 288
DO  - 10.24094//ptk.017.30.1.277
ER  - 

@conference{
author = "Nemoda, Stevan and Mladenović, Milica and Paprika, Milijana and Repić, Branislav and Marinković, Ana",
year = "2017",
abstract = "U radu je predložen dvodimenzijski model numeričke simulacije sagorevanja tečnih goriva u flu-idizovanom sloju, koji se zasniva na dvo fluidnom Euler – Euler pristupom modeliranja fluidizovanog sloja uz određivanje polja brzina gasa i čestica u dvofaznim, granularnim tokovima zasnovane na ana-logiji sa kinetičkom teorijom gasova (KTGF). Sveobuhvatan model kompleksnih procesa u fluidizacio-noj komori sagorevanja podrazumeva, pored određivanja polja brzina gasne i čestične faze, inkorpori-ranje energetskih jednačina gasne i čestične faze, kao i transportnih jednačina hemijskih komponenti sa izvornim članovima usled konverzije komponenata. Brojni numerički eksperimenti pokazuju da je izbor koeficijenata u izrazima za sile trenja prilikom interakcije faza ima izuzetan značaj i mora se sprovesti za svaki, značajno različit režim fluidizacije, posebno. Urađene su serije numeričkih eksperi-menata sa simulacijom procesa sagorevanja u FS sa i bez značajnog sadržaja vode u gorivu. Proračuni su nestacionarni, a modelirani vremenski period odgovara vremenu za koje gas prođe kroz celu visinu reaktora. Numerički eksperimenti, na osnovu predloženog matematičkog modela, su takođe korišćeni za potrebe analize uticaja različitih snaga pri kojima radi reaktor, kao i različitih stepena fluidizacije, na efikasnost sagorevanja kao i na profile temperatura u zoni sagorevanja., A comprehensive 2D numerical model of the bubbled fluidized bed with combustion of liquid fuelsis proposed in the paper. The proposed numerical model is based on the Eulerian–Eulerian granular flow modeling with the kinetic theory of granular flow. The model includes the following basic governing equations: the continuity equations of the solid andgas phase, the momentum conservation equations of the gas and solid phase, the energy equations of gas, and the solid phase and conservation equations for chemical components. The choice of the semi empirical constants of the inter-phase interaction drag force model is significant and these constants must be adjusted for each particular regime of fluidiza-tion. Presented numerical experiments primarily were applied to verification of the assumptions about the impact of water content in a liquid fuel on FB combustion intensity. The numerical experiments, based on the proposed mathematical model, also have been used for the purposes of analyzing the im-pacts of various reactor powers as well as fluidization numbers, on the combustion efficiency and on combustion zone temperature fields",
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 = "2D CFD numerička simulacija fluidizacione komore sagorevanja bazirane na Euler-Euler granularnom modelu, 2D fluidized combustion chamber cfd simulation based on Euler-Euler granular flow model",
pages = "277-288",
doi = "10.24094//ptk.017.30.1.277"
}

Nemoda, S., Mladenović, M., Paprika, M., Repić, B.,& Marinković, A.. (2017). 2D CFD numerička simulacija fluidizacione komore sagorevanja bazirane na Euler-Euler granularnom modelu. 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., 277-288.
https://doi.org/10.24094//ptk.017.30.1.277

Nemoda S, Mladenović M, Paprika M, Repić B, Marinković A. 2D CFD numerička simulacija fluidizacione komore sagorevanja bazirane na Euler-Euler granularnom modelu. in 30. Međunarodni kongres o procesnoj industriji - PROCESING ′17 : zbornik radova. 2017;:277-288.
doi:10.24094//ptk.017.30.1.277 .

Nemoda, Stevan, Mladenović, Milica, Paprika, Milijana, Repić, Branislav, Marinković, Ana, "2D CFD numerička simulacija fluidizacione komore sagorevanja bazirane na Euler-Euler granularnom modelu" in 30. Međunarodni kongres o procesnoj industriji - PROCESING ′17 : zbornik radova (2017):277-288,
https://doi.org/10.24094//ptk.017.30.1.277 . .

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  - CONF
AU  - Dakić, Dragoljub V.
AU  - Paprika, Milijana
AU  - Durovic, Dejan
AU  - Repić, Branislav
AU  - Maldenovic, Milica
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7139
AB  - The paper presents a proposal for forming public-private partnerships in small towns or villages in Serbia, in order to use potential of renewable energy sources, help local economy and, possibly, help preventing village withering. The project comprises construction of thermal plants at the periphery of a small town or a village, fueled by baled biomass form neighboring fields, together with a small industrial zone next to it. The industrial facilities would include storage and processing of agricultural products. The operation of the industrial zone should be organized in a way that the plant is used for heating and industrial purposes alternately. An example of such heating facility is presented here, accompanied by a basic economic analysis.
T1  - Potential of Utilizing Agricultural Biomass for Energy Purposes within Public-Private Partnerships
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7139
ER  - 

@conference{
author = "Dakić, Dragoljub V. and Paprika, Milijana and Durovic, Dejan and Repić, Branislav and Maldenovic, Milica",
year = "2016",
abstract = "The paper presents a proposal for forming public-private partnerships in small towns or villages in Serbia, in order to use potential of renewable energy sources, help local economy and, possibly, help preventing village withering. The project comprises construction of thermal plants at the periphery of a small town or a village, fueled by baled biomass form neighboring fields, together with a small industrial zone next to it. The industrial facilities would include storage and processing of agricultural products. The operation of the industrial zone should be organized in a way that the plant is used for heating and industrial purposes alternately. An example of such heating facility is presented here, accompanied by a basic economic analysis.",
title = "Potential of Utilizing Agricultural Biomass for Energy Purposes within Public-Private Partnerships",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7139"
}

Dakić, D. V., Paprika, M., Durovic, D., Repić, B.,& Maldenovic, M.. (2016). Potential of Utilizing Agricultural Biomass for Energy Purposes within Public-Private Partnerships. .
https://hdl.handle.net/21.15107/rcub_vinar_7139

Dakić DV, Paprika M, Durovic D, Repić B, Maldenovic M. Potential of Utilizing Agricultural Biomass for Energy Purposes within Public-Private Partnerships. 2016;.
https://hdl.handle.net/21.15107/rcub_vinar_7139 .

Dakić, Dragoljub V., Paprika, Milijana, Durovic, Dejan, Repić, Branislav, Maldenovic, Milica, "Potential of Utilizing Agricultural Biomass for Energy Purposes within Public-Private Partnerships" (2016),
https://hdl.handle.net/21.15107/rcub_vinar_7139 .

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  - Nemoda, Stevan
AU  - Mladenović, Milica R.
AU  - Paprika, Milijana
AU  - Erić, Aleksandar
AU  - Grubor, Borislav
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1140
AB  - The paper presents a 2-D CFD model of liquid fuel combustion in bubbling fluidized bed. The numerical procedure is based on the two-fluid Euler-Euler approach, where the velocity field of the gas and particles are modeled in analogy to the kinetic gas theory. The model is taking into account also the third liquid phase, as well as its interaction with the solid and gas phase. The proposed numerical model comprise energy equations for all three phases, as well as the transport equations of chemical components with source terms originated from the component conversion. In the frame of the proposed model, user sub-models were developed for heterogenic fluidized bed combustion of liquid fuels, with or without water. The results of the calculation were compared with experiments on a pilot-facility (power up to 100 kW), combusting, among other fuels, oil. The temperature profiles along the combustion chamber were compared for the two basic cases: combustion with or without water. On the basis of numerical experiments, influence of the fluid-dynamic characteristics of the fluidized bed on the combustion efficiency was analyzed, as well as the influence of the fuel characteristics (reactivity, water content) on the intensive combustion zone.
T2  - Thermal Science
T1  - Three phase eulerian-granular model applied on numerical simulation of non-conventional liquid fuels combustion in a bubbling fluidized bed
VL  - 20
SP  - S133
EP  - S149
DO  - 10.2298/TSCI151025196N
ER  - 

@article{
author = "Nemoda, Stevan and Mladenović, Milica R. and Paprika, Milijana and Erić, Aleksandar and Grubor, Borislav",
year = "2016",
abstract = "The paper presents a 2-D CFD model of liquid fuel combustion in bubbling fluidized bed. The numerical procedure is based on the two-fluid Euler-Euler approach, where the velocity field of the gas and particles are modeled in analogy to the kinetic gas theory. The model is taking into account also the third liquid phase, as well as its interaction with the solid and gas phase. The proposed numerical model comprise energy equations for all three phases, as well as the transport equations of chemical components with source terms originated from the component conversion. In the frame of the proposed model, user sub-models were developed for heterogenic fluidized bed combustion of liquid fuels, with or without water. The results of the calculation were compared with experiments on a pilot-facility (power up to 100 kW), combusting, among other fuels, oil. The temperature profiles along the combustion chamber were compared for the two basic cases: combustion with or without water. On the basis of numerical experiments, influence of the fluid-dynamic characteristics of the fluidized bed on the combustion efficiency was analyzed, as well as the influence of the fuel characteristics (reactivity, water content) on the intensive combustion zone.",
journal = "Thermal Science",
title = "Three phase eulerian-granular model applied on numerical simulation of non-conventional liquid fuels combustion in a bubbling fluidized bed",
volume = "20",
pages = "S133-S149",
doi = "10.2298/TSCI151025196N"
}

Nemoda, S., Mladenović, M. R., Paprika, M., Erić, A.,& Grubor, B.. (2016). Three phase eulerian-granular model applied on numerical simulation of non-conventional liquid fuels combustion in a bubbling fluidized bed. in Thermal Science, 20, S133-S149.
https://doi.org/10.2298/TSCI151025196N

Nemoda S, Mladenović MR, Paprika M, Erić A, Grubor B. Three phase eulerian-granular model applied on numerical simulation of non-conventional liquid fuels combustion in a bubbling fluidized bed. in Thermal Science. 2016;20:S133-S149.
doi:10.2298/TSCI151025196N .

Nemoda, Stevan, Mladenović, Milica R., Paprika, Milijana, Erić, Aleksandar, Grubor, Borislav, "Three phase eulerian-granular model applied on numerical simulation of non-conventional liquid fuels combustion in a bubbling fluidized bed" in Thermal Science, 20 (2016):S133-S149,
https://doi.org/10.2298/TSCI151025196N . .

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  - 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  - Nemoda, Stevan
AU  - Mladenović, Milica R.
AU  - Paprika, Milijana
AU  - Dakić, Dragoljub V.
AU  - Erić, Aleksandar
AU  - Komatina, Mirko
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/512
AB  - This paper deals with the numerical simulation of liquid fuel combustion in a fluidized reactor using two-fluid Eulerian-Eulerian fluidized bed modeling incorporating the kinetic theory of granular flow (KTGF) to gas and solid phase flow prediction. The comprehensive model of the complex processes in a fluidized combustion chamber incorporates, besides the prediction of gas and particular phase velocity fields, the energy equations for the gas and solid phase and the transport equations of conservation of chemical species with the source terms due to the conversion of chemical components. Numerical experiments showed that the coefficients in the model of inter-phase interaction drag force have a significant effect, and they have to be adjusted for each regime of fluidization. A series of numerical experiments was performed with combustion of liquid fuels in a fluidized bed (FB), with and without significant water content. The given estimations were related to the unsteady state, and the modeled period corresponds to the passing time of the flow through the reactor column. The numerical experiments were conducted to examine the impact of the water content in a liquid fuel on the global FB combustion kinetics.
T2  - Journal of the Serbian Chemical Society
T1  - Euler-Euler granular flow model of the combustion of liquid fuels in a fluidized reactor
VL  - 80
IS  - 3
SP  - 377
EP  - 389
DO  - 10.2298/JSC140130029N
ER  - 

@article{
author = "Nemoda, Stevan and Mladenović, Milica R. and Paprika, Milijana and Dakić, Dragoljub V. and Erić, Aleksandar and Komatina, Mirko",
year = "2015",
abstract = "This paper deals with the numerical simulation of liquid fuel combustion in a fluidized reactor using two-fluid Eulerian-Eulerian fluidized bed modeling incorporating the kinetic theory of granular flow (KTGF) to gas and solid phase flow prediction. The comprehensive model of the complex processes in a fluidized combustion chamber incorporates, besides the prediction of gas and particular phase velocity fields, the energy equations for the gas and solid phase and the transport equations of conservation of chemical species with the source terms due to the conversion of chemical components. Numerical experiments showed that the coefficients in the model of inter-phase interaction drag force have a significant effect, and they have to be adjusted for each regime of fluidization. A series of numerical experiments was performed with combustion of liquid fuels in a fluidized bed (FB), with and without significant water content. The given estimations were related to the unsteady state, and the modeled period corresponds to the passing time of the flow through the reactor column. The numerical experiments were conducted to examine the impact of the water content in a liquid fuel on the global FB combustion kinetics.",
journal = "Journal of the Serbian Chemical Society",
title = "Euler-Euler granular flow model of the combustion of liquid fuels in a fluidized reactor",
volume = "80",
number = "3",
pages = "377-389",
doi = "10.2298/JSC140130029N"
}

Nemoda, S., Mladenović, M. R., Paprika, M., Dakić, D. V., Erić, A.,& Komatina, M.. (2015). Euler-Euler granular flow model of the combustion of liquid fuels in a fluidized reactor. in Journal of the Serbian Chemical Society, 80(3), 377-389.
https://doi.org/10.2298/JSC140130029N

Nemoda S, Mladenović MR, Paprika M, Dakić DV, Erić A, Komatina M. Euler-Euler granular flow model of the combustion of liquid fuels in a fluidized reactor. in Journal of the Serbian Chemical Society. 2015;80(3):377-389.
doi:10.2298/JSC140130029N .

Nemoda, Stevan, Mladenović, Milica R., Paprika, Milijana, Dakić, Dragoljub V., Erić, Aleksandar, Komatina, Mirko, "Euler-Euler granular flow model of the combustion of liquid fuels in a fluidized reactor" in Journal of the Serbian Chemical Society, 80, no. 3 (2015):377-389,
https://doi.org/10.2298/JSC140130029N . .

TY  - JOUR
AU  - Paprika, Milijana
AU  - Komatina, Mirko
AU  - Dakić, Dragoljub V.
AU  - Živković, Goran S.
AU  - Mladenović, Milica R.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7069
AB  - The paper presents a comparison between experimental and model results of primary fragmentation of a lignite coal in a fluidized bed (FB). In the experiments, the char particle size distribution and the general indicators of primary fragmentation (intensity and index) were determined. The same parameters were calculated using a mathematical model of the process, fed by data of the fuel (the amount of volatiles and fixed carbon), fluidized bed temperature; and inlet particle size distribution. The size distribution and number of the char particles in fluidized bed significantly differ from the size distribution and number of inlet coal particles. Char population has a bimodal distribution separate distributions for the smaller and larger sets of fragments. The experimental and model results show the same tendency: a coal particle partially breaks at the beginning of devolatilization, giving a large number of fine fragments, while, as the process continues, the rest of the parent particle sometimes breaks down into a smaller number of larger pieces, and sometimes does not fragment at all. Review of the Weibull distribution coefficients enables prediction of the char particle size distribution for the characteristic fluidized bed conditions and inlet coal particle sizes.
T2  - Energy and Fuels
T1  - Experimental and Numerical Investigation of the Primary Fragmentation of a Lignite during Fluidized-Bed (FB) Devolatilization
VL  - 29
IS  - 5
SP  - 3394
EP  - 3398
DO  - 10.1021/ef5024803
ER  - 

@article{
author = "Paprika, Milijana and Komatina, Mirko and Dakić, Dragoljub V. and Živković, Goran S. and Mladenović, Milica R.",
year = "2015",
abstract = "The paper presents a comparison between experimental and model results of primary fragmentation of a lignite coal in a fluidized bed (FB). In the experiments, the char particle size distribution and the general indicators of primary fragmentation (intensity and index) were determined. The same parameters were calculated using a mathematical model of the process, fed by data of the fuel (the amount of volatiles and fixed carbon), fluidized bed temperature; and inlet particle size distribution. The size distribution and number of the char particles in fluidized bed significantly differ from the size distribution and number of inlet coal particles. Char population has a bimodal distribution separate distributions for the smaller and larger sets of fragments. The experimental and model results show the same tendency: a coal particle partially breaks at the beginning of devolatilization, giving a large number of fine fragments, while, as the process continues, the rest of the parent particle sometimes breaks down into a smaller number of larger pieces, and sometimes does not fragment at all. Review of the Weibull distribution coefficients enables prediction of the char particle size distribution for the characteristic fluidized bed conditions and inlet coal particle sizes.",
journal = "Energy and Fuels",
title = "Experimental and Numerical Investigation of the Primary Fragmentation of a Lignite during Fluidized-Bed (FB) Devolatilization",
volume = "29",
number = "5",
pages = "3394-3398",
doi = "10.1021/ef5024803"
}

Paprika, M., Komatina, M., Dakić, D. V., Živković, G. S.,& Mladenović, M. R.. (2015). Experimental and Numerical Investigation of the Primary Fragmentation of a Lignite during Fluidized-Bed (FB) Devolatilization. in Energy and Fuels, 29(5), 3394-3398.
https://doi.org/10.1021/ef5024803

Paprika M, Komatina M, Dakić DV, Živković GS, Mladenović MR. Experimental and Numerical Investigation of the Primary Fragmentation of a Lignite during Fluidized-Bed (FB) Devolatilization. in Energy and Fuels. 2015;29(5):3394-3398.
doi:10.1021/ef5024803 .

Paprika, Milijana, Komatina, Mirko, Dakić, Dragoljub V., Živković, Goran S., Mladenović, Milica R., "Experimental and Numerical Investigation of the Primary Fragmentation of a Lignite during Fluidized-Bed (FB) Devolatilization" in Energy and Fuels, 29, no. 5 (2015):3394-3398,
https://doi.org/10.1021/ef5024803 . .

TY  - JOUR
AU  - Nemoda, Stevan
AU  - Mladenović, Milica
AU  - Erić, Aleksandar
AU  - Paprika, Milijana
AU  - Đurović, Dejan
AU  - Repić, Branislav
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12763
AB  - U radu je predložen dvodimenzijski model numeričke simulacije sagorevanja tečnih goriva u fluidizovanom sloju, koji se zasniva na dvofluidnom Ojler-Ojler pristupu modeliranja fluidizovanog sloja, pri čemu se određivanje polja brzina gasa i čestica u dvofaznim granularnim tokovima zasniva na analogiji sa kinetičkom teorijom gasova. Sveobuhvatan model kompleksnih procesa u fluidizacionoj komori sagorevanja podrazumeva, pored određivanja polja brzina gasne i čestične faze, ugradnja energetskih jednačina gasne i čestične faze, kao i transportnih jednačina hemijskih komponenti sa izvornim članovima usled konverzije komponenata. Brojni numerički eksperimenti pokazuju da izbor koeficijenata u izrazima za sile trenja prilikom interakcije faza ima izuzetan značaj i mora se sprovesti za svaki, značajno različit režim fluidizacije, posebno. Urađene su serije numeričkih eksperimenata sa simulacijom procesa sagorevanja u fluidizovanom sloju sa i bez značajnog sadržaja vode u gorivu. Proračuni su nestacionarni, a modelirani vremenski period odgovara vremenu za koje gas prođe kroz celu visinu reaktora. Izloženi numerički eksperimenti su prvenstveno primenjeni za potvrdu pretpostavke koja se odnosi na uticaj sadržaja vlage u grivu na kinetiku reakcija u fluidizovanom ložištu.
AB  - A comprehensive 2D numerical model of the bubbled fluidized bed with combustion of liquid fuelsis proposed in the paper. The proposed numerical model is based on the Eulerian–Eulerian granular flow modeling with the kinetic theory of granular flow. The model includes the following basic governing equations: the continuity equations of the solid andgas phase, the momentum conservation equations of the gas and solid phase, the energy equations of gas, and the solid phase and conservation equations for chemical components. The choice of the semi empirical constants of the inter-phase interaction drag force model is significant and these constants must be adjusted for each particular regime of fluidiza-tion. Presented numerical experiments primarily were applied to verification of the assumptions about the impact of water content in a liquid fuel on FB combustion intensity. The numerical experiments, based on the proposed mathematical model, also have been used for the purposes of analyzing the im-pacts of various reactor powers as well as fluidization numbers, on the combustion efficiency and on combustion zone temperature fields
T2  - Termotehnika
T1  - CFD numerička simulacija fluidizacione komore sagorevanja bazirane na Ojler-Ojler granularnom modelu
T1  - Fluidized Combustion Chamber CFD Simulation Based on Euler-Euler Granular Flow Model
VL  - 40
IS  - 1-2
SP  - 19
EP  - 33
DO  - 10.5937/termoteh1402019N
ER  - 

@article{
author = "Nemoda, Stevan and Mladenović, Milica and Erić, Aleksandar and Paprika, Milijana and Đurović, Dejan and Repić, Branislav",
year = "2014",
abstract = "U radu je predložen dvodimenzijski model numeričke simulacije sagorevanja tečnih goriva u fluidizovanom sloju, koji se zasniva na dvofluidnom Ojler-Ojler pristupu modeliranja fluidizovanog sloja, pri čemu se određivanje polja brzina gasa i čestica u dvofaznim granularnim tokovima zasniva na analogiji sa kinetičkom teorijom gasova. Sveobuhvatan model kompleksnih procesa u fluidizacionoj komori sagorevanja podrazumeva, pored određivanja polja brzina gasne i čestične faze, ugradnja energetskih jednačina gasne i čestične faze, kao i transportnih jednačina hemijskih komponenti sa izvornim članovima usled konverzije komponenata. Brojni numerički eksperimenti pokazuju da izbor koeficijenata u izrazima za sile trenja prilikom interakcije faza ima izuzetan značaj i mora se sprovesti za svaki, značajno različit režim fluidizacije, posebno. Urađene su serije numeričkih eksperimenata sa simulacijom procesa sagorevanja u fluidizovanom sloju sa i bez značajnog sadržaja vode u gorivu. Proračuni su nestacionarni, a modelirani vremenski period odgovara vremenu za koje gas prođe kroz celu visinu reaktora. Izloženi numerički eksperimenti su prvenstveno primenjeni za potvrdu pretpostavke koja se odnosi na uticaj sadržaja vlage u grivu na kinetiku reakcija u fluidizovanom ložištu., A comprehensive 2D numerical model of the bubbled fluidized bed with combustion of liquid fuelsis proposed in the paper. The proposed numerical model is based on the Eulerian–Eulerian granular flow modeling with the kinetic theory of granular flow. The model includes the following basic governing equations: the continuity equations of the solid andgas phase, the momentum conservation equations of the gas and solid phase, the energy equations of gas, and the solid phase and conservation equations for chemical components. The choice of the semi empirical constants of the inter-phase interaction drag force model is significant and these constants must be adjusted for each particular regime of fluidiza-tion. Presented numerical experiments primarily were applied to verification of the assumptions about the impact of water content in a liquid fuel on FB combustion intensity. The numerical experiments, based on the proposed mathematical model, also have been used for the purposes of analyzing the im-pacts of various reactor powers as well as fluidization numbers, on the combustion efficiency and on combustion zone temperature fields",
journal = "Termotehnika",
title = "CFD numerička simulacija fluidizacione komore sagorevanja bazirane na Ojler-Ojler granularnom modelu, Fluidized Combustion Chamber CFD Simulation Based on Euler-Euler Granular Flow Model",
volume = "40",
number = "1-2",
pages = "19-33",
doi = "10.5937/termoteh1402019N"
}

Nemoda, S., Mladenović, M., Erić, A., Paprika, M., Đurović, D.,& Repić, B.. (2014). CFD numerička simulacija fluidizacione komore sagorevanja bazirane na Ojler-Ojler granularnom modelu. in Termotehnika, 40(1-2), 19-33.
https://doi.org/10.5937/termoteh1402019N

Nemoda S, Mladenović M, Erić A, Paprika M, Đurović D, Repić B. CFD numerička simulacija fluidizacione komore sagorevanja bazirane na Ojler-Ojler granularnom modelu. in Termotehnika. 2014;40(1-2):19-33.
doi:10.5937/termoteh1402019N .

Nemoda, Stevan, Mladenović, Milica, Erić, Aleksandar, Paprika, Milijana, Đurović, Dejan, Repić, Branislav, "CFD numerička simulacija fluidizacione komore sagorevanja bazirane na Ojler-Ojler granularnom modelu" in Termotehnika, 40, no. 1-2 (2014):19-33,
https://doi.org/10.5937/termoteh1402019N . .

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  - Mladenović, Milica
AU  - Dakić, Dragoljub
AU  - Nemoda, Stevan
AU  - Erić, Aleksandar
AU  - Paprika, Milijana
AU  - Đurović, Dejan
AU  - Repić, Branislav
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11610
AB  - Među definisanim ciljevima održivog razvoja energetike Srbije nalaze se: poboljšanje energetske efikasnosti, sigurnost i stabilnost snabdevanja energijom, korišćenje obnovljivih izvora energije, upravljanje otpadom i smanjenje zagađenja životne sredine. Jedan od načina za istovremeno ispunjavanje ovih ciljeva je i korišćenje nekonvencionalnih, alternativnih goriva poput papirnog mulja - otpada iz prerade reciklažnog papira, uz primenu tehnologije sagorevanja u fluidizovanom sloju koja omogućava zadovoljenje ekoloških normi. U radu su prikazani rezultati eksperimenata sagorevanja papirnog mulja (otpad iz proizvodnje papira u fabrici hartije UMKA), koji su obavljeni na industrijskom demonstracionoeksperimentalnom kotlu za sagorevanje nekonvencionalnih čvrstih i tečnih goriva, odnosno otpadnih industrijskih materija, u fluidizacionom ložištu. Merenja obuhvataju temperatursko polje po visini ložišta, analizu sastava dimnih gasova na izlazu iz ložišta kao i ostale parametre sagorevanja predmetnog goriva u fluidizovanom sloju. Na osnovu dobijenih rezultata data je ocena podobnosti sagorevanja papirnog mulja u toplovodnom kotlu sa fluidizovanim slojem i mogućnost iskorišćenja njegovog energetskog potencijala.
AB  - Among thedefined objectives of theSustainableEnergy Developmentof  Serbiaare:  improving energy  efficiency,  reliabiltyand  stabilityoffuelsupply,use  of renewableenergy, waste management andpollution abatement. A way for  simultaneouslyfulfillthe seria ofthesegoals isthe use ofunconventional, alternative fuelssuch as papersludge - waste from the recycledpaper processing, with use ofthe  technologyof fluidized bed combustion, which allowsmeetingenvironmental standards.This paper presentsexperimental resultsof papersludgecombustion(wastefrompaper productionin the factorystockUMKA), which were carried outon an industrialdemonstrationaland experimentalboilerused for  combustionof non-conventionalsolid and liquidfuels,andindustrial wastematerial in fluidizedbed.Based on  these  results,  an  assessment  of the suitabilityof  papersludge  combustionin hot  water boilerswithfluidized bedandthe possibility of usingits energypotentials is given.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku
C3  - 26. Međunarodni kongres o procesnoj industriji - PROCESING ′13 : zbornik radova
T1  - Ispitivanje podobnosti sagorevanja papirnog mulja u toplovodnom kotlu sa fluidizovanim slojem
T1  - Examination of suitability of paper sludge combustion in hot-water fluidized bed boiler
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11610
ER  - 

@conference{
author = "Mladenović, Milica and Dakić, Dragoljub and Nemoda, Stevan and Erić, Aleksandar and Paprika, Milijana and Đurović, Dejan and Repić, Branislav",
year = "2013",
abstract = "Među definisanim ciljevima održivog razvoja energetike Srbije nalaze se: poboljšanje energetske efikasnosti, sigurnost i stabilnost snabdevanja energijom, korišćenje obnovljivih izvora energije, upravljanje otpadom i smanjenje zagađenja životne sredine. Jedan od načina za istovremeno ispunjavanje ovih ciljeva je i korišćenje nekonvencionalnih, alternativnih goriva poput papirnog mulja - otpada iz prerade reciklažnog papira, uz primenu tehnologije sagorevanja u fluidizovanom sloju koja omogućava zadovoljenje ekoloških normi. U radu su prikazani rezultati eksperimenata sagorevanja papirnog mulja (otpad iz proizvodnje papira u fabrici hartije UMKA), koji su obavljeni na industrijskom demonstracionoeksperimentalnom kotlu za sagorevanje nekonvencionalnih čvrstih i tečnih goriva, odnosno otpadnih industrijskih materija, u fluidizacionom ložištu. Merenja obuhvataju temperatursko polje po visini ložišta, analizu sastava dimnih gasova na izlazu iz ložišta kao i ostale parametre sagorevanja predmetnog goriva u fluidizovanom sloju. Na osnovu dobijenih rezultata data je ocena podobnosti sagorevanja papirnog mulja u toplovodnom kotlu sa fluidizovanim slojem i mogućnost iskorišćenja njegovog energetskog potencijala., Among thedefined objectives of theSustainableEnergy Developmentof  Serbiaare:  improving energy  efficiency,  reliabiltyand  stabilityoffuelsupply,use  of renewableenergy, waste management andpollution abatement. A way for  simultaneouslyfulfillthe seria ofthesegoals isthe use ofunconventional, alternative fuelssuch as papersludge - waste from the recycledpaper processing, with use ofthe  technologyof fluidized bed combustion, which allowsmeetingenvironmental standards.This paper presentsexperimental resultsof papersludgecombustion(wastefrompaper productionin the factorystockUMKA), which were carried outon an industrialdemonstrationaland experimentalboilerused for  combustionof non-conventionalsolid and liquidfuels,andindustrial wastematerial in fluidizedbed.Based on  these  results,  an  assessment  of the suitabilityof  papersludge  combustionin hot  water boilerswithfluidized bedandthe possibility of usingits energypotentials is given.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku",
journal = "26. Međunarodni kongres o procesnoj industriji - PROCESING ′13 : zbornik radova",
title = "Ispitivanje podobnosti sagorevanja papirnog mulja u toplovodnom kotlu sa fluidizovanim slojem, Examination of suitability of paper sludge combustion in hot-water fluidized bed boiler",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11610"
}

Mladenović, M., Dakić, D., Nemoda, S., Erić, A., Paprika, M., Đurović, D.,& Repić, B.. (2013). Ispitivanje podobnosti sagorevanja papirnog mulja u toplovodnom kotlu sa fluidizovanim slojem. in 26. Međunarodni kongres o procesnoj industriji - PROCESING ′13 : zbornik radova
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku..
https://hdl.handle.net/21.15107/rcub_vinar_11610

Mladenović M, Dakić D, Nemoda S, Erić A, Paprika M, Đurović D, Repić B. Ispitivanje podobnosti sagorevanja papirnog mulja u toplovodnom kotlu sa fluidizovanim slojem. in 26. Međunarodni kongres o procesnoj industriji - PROCESING ′13 : zbornik radova. 2013;.
https://hdl.handle.net/21.15107/rcub_vinar_11610 .

Mladenović, Milica, Dakić, Dragoljub, Nemoda, Stevan, Erić, Aleksandar, Paprika, Milijana, Đurović, Dejan, Repić, Branislav, "Ispitivanje podobnosti sagorevanja papirnog mulja u toplovodnom kotlu sa fluidizovanim slojem" in 26. Međunarodni kongres o procesnoj industriji - PROCESING ′13 : zbornik radova (2013),
https://hdl.handle.net/21.15107/rcub_vinar_11610 .

TY  - JOUR
AU  - Paprika, Milijana
AU  - Komatina, Mirko S.
AU  - Dakić, Dragoljub V.
AU  - Nemoda, Stevan
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5848
AB  - The combination of temperature gradient and volatile release has been identified as the main cause for primary fragmentation (breakage of fuel particles during devolatilization). A mathematical model of the primary fragmentation in a fluidized bed has been developed, incorporating both causes. It takes into account the type of the coal, size of the coal particles, and the fluidized bed temperature. The model simulates fragmentation of a batch of coal particles. For each particle in the batch, the model follows propagation and merging of cracks, starting from randomly distributed pre-existing pores, leading to possible breakage of the particle. The model calculates volume of the fragmented particles and volume diameters, classifying them into size classes. For each size class, the number of particles is counted, and the mass fraction is calculated. The results are the distribution of mass and number of char particles after the devolatilization and the primary fragmentation parameters.
T2  - Energy and Fuels
T1  - Prediction of Coal Primary Fragmentation and Char Particle Size Distribution in Fluidized Bed
VL  - 27
IS  - 9
SP  - 5488
EP  - 5494
DO  - 10.1021/ef400875q
ER  - 

@article{
author = "Paprika, Milijana and Komatina, Mirko S. and Dakić, Dragoljub V. and Nemoda, Stevan",
year = "2013",
abstract = "The combination of temperature gradient and volatile release has been identified as the main cause for primary fragmentation (breakage of fuel particles during devolatilization). A mathematical model of the primary fragmentation in a fluidized bed has been developed, incorporating both causes. It takes into account the type of the coal, size of the coal particles, and the fluidized bed temperature. The model simulates fragmentation of a batch of coal particles. For each particle in the batch, the model follows propagation and merging of cracks, starting from randomly distributed pre-existing pores, leading to possible breakage of the particle. The model calculates volume of the fragmented particles and volume diameters, classifying them into size classes. For each size class, the number of particles is counted, and the mass fraction is calculated. The results are the distribution of mass and number of char particles after the devolatilization and the primary fragmentation parameters.",
journal = "Energy and Fuels",
title = "Prediction of Coal Primary Fragmentation and Char Particle Size Distribution in Fluidized Bed",
volume = "27",
number = "9",
pages = "5488-5494",
doi = "10.1021/ef400875q"
}

Paprika, M., Komatina, M. S., Dakić, D. V.,& Nemoda, S.. (2013). Prediction of Coal Primary Fragmentation and Char Particle Size Distribution in Fluidized Bed. in Energy and Fuels, 27(9), 5488-5494.
https://doi.org/10.1021/ef400875q

Paprika M, Komatina MS, Dakić DV, Nemoda S. Prediction of Coal Primary Fragmentation and Char Particle Size Distribution in Fluidized Bed. in Energy and Fuels. 2013;27(9):5488-5494.
doi:10.1021/ef400875q .

Paprika, Milijana, Komatina, Mirko S., Dakić, Dragoljub V., Nemoda, Stevan, "Prediction of Coal Primary Fragmentation and Char Particle Size Distribution in Fluidized Bed" in Energy and Fuels, 27, no. 9 (2013):5488-5494,
https://doi.org/10.1021/ef400875q . .

TY  - JOUR
AU  - Mladenovic, Rastko
AU  - Dakić, Dragoljub V.
AU  - Erić, Aleksandar
AU  - Mladenović, Milica R.
AU  - Paprika, Milijana
AU  - Repić, Branislav
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6802
AB  - In one of the largest agricultural companies in Serbia, with over 2000 ha of soya plantations, there are 4000 t/year of baled soya straw produced. Soya straw biomass is planned to be used as a renewable energy source for heating the greenhouses, with 5 ha in area. Therefore, efforts have been made to develop a technology for utilizing large bales of soya straw for energy production. In the first phase, a demo energy production facility-furnace was developed and built. The facility had been tested in order to examine the quality of combustion of large soya straw bales. Since experimental results of testing of this facility have proved to be very satisfactory, in the second phase of the development, a hot water boiler of similar characteristics (burning soya straw bales, with dimensions 0.7 x 1.2 x 2.7 m(3)) has been designed. (c) 2009 Elsevier Ltd. All rights reserved.
T2  - Energy
T1  - The boiler concept for combustion of large soya straw bales
VL  - 34
IS  - 5
SP  - 715
EP  - 723
DO  - 10.1016/j.energy.2009.02.003
ER  - 

@article{
author = "Mladenovic, Rastko and Dakić, Dragoljub V. and Erić, Aleksandar and Mladenović, Milica R. and Paprika, Milijana and Repić, Branislav",
year = "2009",
abstract = "In one of the largest agricultural companies in Serbia, with over 2000 ha of soya plantations, there are 4000 t/year of baled soya straw produced. Soya straw biomass is planned to be used as a renewable energy source for heating the greenhouses, with 5 ha in area. Therefore, efforts have been made to develop a technology for utilizing large bales of soya straw for energy production. In the first phase, a demo energy production facility-furnace was developed and built. The facility had been tested in order to examine the quality of combustion of large soya straw bales. Since experimental results of testing of this facility have proved to be very satisfactory, in the second phase of the development, a hot water boiler of similar characteristics (burning soya straw bales, with dimensions 0.7 x 1.2 x 2.7 m(3)) has been designed. (c) 2009 Elsevier Ltd. All rights reserved.",
journal = "Energy",
title = "The boiler concept for combustion of large soya straw bales",
volume = "34",
number = "5",
pages = "715-723",
doi = "10.1016/j.energy.2009.02.003"
}

Mladenovic, R., Dakić, D. V., Erić, A., Mladenović, M. R., Paprika, M.,& Repić, B.. (2009). The boiler concept for combustion of large soya straw bales. in Energy, 34(5), 715-723.
https://doi.org/10.1016/j.energy.2009.02.003

Mladenovic R, Dakić DV, Erić A, Mladenović MR, Paprika M, Repić B. The boiler concept for combustion of large soya straw bales. in Energy. 2009;34(5):715-723.
doi:10.1016/j.energy.2009.02.003 .

Mladenovic, Rastko, Dakić, Dragoljub V., Erić, Aleksandar, Mladenović, Milica R., Paprika, Milijana, Repić, Branislav, "The boiler concept for combustion of large soya straw bales" in Energy, 34, no. 5 (2009):715-723,
https://doi.org/10.1016/j.energy.2009.02.003 . .

TY  - JOUR
AU  - Repić, Branislav
AU  - Dakić, Dragoljub V.
AU  - Paprika, Milijana
AU  - Mladenovic, Rastko V.
AU  - Erić, Aleksandar
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6787
AB  - There is a growing need for the use of alternative and renewable energy sources, in terms of sustainable energy development. One of the potentially biggest renewable energy sources in Serbia is agricultural biomass, quite available and cheap at the moment. For many years, the Vinca Institute of Nuclear Sciences, Laboratory for Thermal Engineering and Energy, has been working on the development of clean technologies for efficient utilization of biomass, and as a result utilities and equipment (boilers and furnaces) with wide range of use have been developed. These devices have complete combustion control and primarily burn baled biomass with no adequate utilization. The results of the development and of the tests of an experimental demonstrativel boiler burning small bales of soya straw have been presented in this paper. In the boiler, the combustion has been organised on the cigarette burning principle, and fuel feeding has been done by gravity The technical scheme of the boiler and the results of preliminary tests carried out in real operation conditions ham been given.
T2  - Thermal Science
T1  - Soya Straw Bales Combustion in High-Efficient Boiler
VL  - 12
IS  - 4
SP  - 51
EP  - 60
DO  - 10.2298/TSCI0804051R
ER  - 

@article{
author = "Repić, Branislav and Dakić, Dragoljub V. and Paprika, Milijana and Mladenovic, Rastko V. and Erić, Aleksandar",
year = "2008",
abstract = "There is a growing need for the use of alternative and renewable energy sources, in terms of sustainable energy development. One of the potentially biggest renewable energy sources in Serbia is agricultural biomass, quite available and cheap at the moment. For many years, the Vinca Institute of Nuclear Sciences, Laboratory for Thermal Engineering and Energy, has been working on the development of clean technologies for efficient utilization of biomass, and as a result utilities and equipment (boilers and furnaces) with wide range of use have been developed. These devices have complete combustion control and primarily burn baled biomass with no adequate utilization. The results of the development and of the tests of an experimental demonstrativel boiler burning small bales of soya straw have been presented in this paper. In the boiler, the combustion has been organised on the cigarette burning principle, and fuel feeding has been done by gravity The technical scheme of the boiler and the results of preliminary tests carried out in real operation conditions ham been given.",
journal = "Thermal Science",
title = "Soya Straw Bales Combustion in High-Efficient Boiler",
volume = "12",
number = "4",
pages = "51-60",
doi = "10.2298/TSCI0804051R"
}

Repić, B., Dakić, D. V., Paprika, M., Mladenovic, R. V.,& Erić, A.. (2008). Soya Straw Bales Combustion in High-Efficient Boiler. in Thermal Science, 12(4), 51-60.
https://doi.org/10.2298/TSCI0804051R

Repić B, Dakić DV, Paprika M, Mladenovic RV, Erić A. Soya Straw Bales Combustion in High-Efficient Boiler. in Thermal Science. 2008;12(4):51-60.
doi:10.2298/TSCI0804051R .

Repić, Branislav, Dakić, Dragoljub V., Paprika, Milijana, Mladenovic, Rastko V., Erić, Aleksandar, "Soya Straw Bales Combustion in High-Efficient Boiler" in Thermal Science, 12, no. 4 (2008):51-60,
https://doi.org/10.2298/TSCI0804051R . .

TY  - JOUR
AU  - Schneider, Daniel R.
AU  - Duic, Neven
AU  - Raguzin, Igor
AU  - Bogdan, Zeljko
AU  - Ban, Marko
AU  - Grubor, Borislav
AU  - Stefanović, Predrag Lj.
AU  - Dakić, Dragoljub V.
AU  - Repić, Branislav
AU  - Stevanović, Žarko M.
AU  - Zbogar, Ana
AU  - Studovic, Maja
AU  - Nemoda, Stevan
AU  - Oka, Nikola
AU  - Đurović, Dejan M.
AU  - Kadic, Nikola
AU  - Bakić, Vukman
AU  - Belošević, Srđan
AU  - Erić, Aleksandar
AU  - Mladenovic, Rastko
AU  - Paprika, Milijana
AU  - Delalic, Nijaz
AU  - Lekic, Alija
AU  - Bajramovic, Rasim
AU  - Teskeredzic, Armin
AU  - Smajevic, Izet
AU  - Dzaferovic, Ejub
AU  - Begic, Fajik
AU  - Lulic, Haris
AU  - Metovic, Sadjit
AU  - Petrović, Semin
AU  - Djugum, Adnan
AU  - Kadric, Dzana
AU  - Hodzic, Nihad
AU  - Kulic, Fahrudin
AU  - Kazagic, Anes
AU  - Gafic, Admir
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3433
AB  - Although the countries of the Western Balkans are mostly electrified, there are still regions which do not have access to the electricity network or where the network capacity is insufficient. For the most part such areas are under special care of the state (i.e. underdeveloped, devastated by war, depopulated), on islands or in mountainous regions. Since the decentralized energy generation covers a broad range of technologies, including many renewable energy technologies that provide small-scale power at sites close to the users, such concept could be of interest for these locations. This paper identfies the areas in Western Balkans where such systems could be applied Consideration is given to geographical locations as well as possible applications. Wind hydro, solar photovoltaic, and biomass conversion systems were taken into consideration. Since the renewable energy sources data for Western Balkans region are rather scarce, the intention was to give a survey of the present situation and an estimate of future polential for decentralized energy generation based on renewable energy sources. The decentralized energy generation based on renewable energy sources in Western Balkans will find its niche easier for the users that will produce electricity for their own needs and for the users located in remote rural areas (off-grid applications).
T2  - Thermal Science
T1  - Mapping the potential for decentralized energy generation based on RES in Western Balkans
VL  - 11
IS  - 3
SP  - 7
EP  - 26
DO  - 10.2298/TSC10703007S
ER  - 

@article{
author = "Schneider, Daniel R. and Duic, Neven and Raguzin, Igor and Bogdan, Zeljko and Ban, Marko and Grubor, Borislav and Stefanović, Predrag Lj. and Dakić, Dragoljub V. and Repić, Branislav and Stevanović, Žarko M. and Zbogar, Ana and Studovic, Maja and Nemoda, Stevan and Oka, Nikola and Đurović, Dejan M. and Kadic, Nikola and Bakić, Vukman and Belošević, Srđan and Erić, Aleksandar and Mladenovic, Rastko and Paprika, Milijana and Delalic, Nijaz and Lekic, Alija and Bajramovic, Rasim and Teskeredzic, Armin and Smajevic, Izet and Dzaferovic, Ejub and Begic, Fajik and Lulic, Haris and Metovic, Sadjit and Petrović, Semin and Djugum, Adnan and Kadric, Dzana and Hodzic, Nihad and Kulic, Fahrudin and Kazagic, Anes and Gafic, Admir",
year = "2007",
abstract = "Although the countries of the Western Balkans are mostly electrified, there are still regions which do not have access to the electricity network or where the network capacity is insufficient. For the most part such areas are under special care of the state (i.e. underdeveloped, devastated by war, depopulated), on islands or in mountainous regions. Since the decentralized energy generation covers a broad range of technologies, including many renewable energy technologies that provide small-scale power at sites close to the users, such concept could be of interest for these locations. This paper identfies the areas in Western Balkans where such systems could be applied Consideration is given to geographical locations as well as possible applications. Wind hydro, solar photovoltaic, and biomass conversion systems were taken into consideration. Since the renewable energy sources data for Western Balkans region are rather scarce, the intention was to give a survey of the present situation and an estimate of future polential for decentralized energy generation based on renewable energy sources. The decentralized energy generation based on renewable energy sources in Western Balkans will find its niche easier for the users that will produce electricity for their own needs and for the users located in remote rural areas (off-grid applications).",
journal = "Thermal Science",
title = "Mapping the potential for decentralized energy generation based on RES in Western Balkans",
volume = "11",
number = "3",
pages = "7-26",
doi = "10.2298/TSC10703007S"
}

Schneider, D. R., Duic, N., Raguzin, I., Bogdan, Z., Ban, M., Grubor, B., Stefanović, P. Lj., Dakić, D. V., Repić, B., Stevanović, Ž. M., Zbogar, A., Studovic, M., Nemoda, S., Oka, N., Đurović, D. M., Kadic, N., Bakić, V., Belošević, S., Erić, A., Mladenovic, R., Paprika, M., Delalic, N., Lekic, A., Bajramovic, R., Teskeredzic, A., Smajevic, I., Dzaferovic, E., Begic, F., Lulic, H., Metovic, S., Petrović, S., Djugum, A., Kadric, D., Hodzic, N., Kulic, F., Kazagic, A.,& Gafic, A.. (2007). Mapping the potential for decentralized energy generation based on RES in Western Balkans. in Thermal Science, 11(3), 7-26.
https://doi.org/10.2298/TSC10703007S

Schneider DR, Duic N, Raguzin I, Bogdan Z, Ban M, Grubor B, Stefanović PL, Dakić DV, Repić B, Stevanović ŽM, Zbogar A, Studovic M, Nemoda S, Oka N, Đurović DM, Kadic N, Bakić V, Belošević S, Erić A, Mladenovic R, Paprika M, Delalic N, Lekic A, Bajramovic R, Teskeredzic A, Smajevic I, Dzaferovic E, Begic F, Lulic H, Metovic S, Petrović S, Djugum A, Kadric D, Hodzic N, Kulic F, Kazagic A, Gafic A. Mapping the potential for decentralized energy generation based on RES in Western Balkans. in Thermal Science. 2007;11(3):7-26.
doi:10.2298/TSC10703007S .

Schneider, Daniel R., Duic, Neven, Raguzin, Igor, Bogdan, Zeljko, Ban, Marko, Grubor, Borislav, Stefanović, Predrag Lj., Dakić, Dragoljub V., Repić, Branislav, Stevanović, Žarko M., Zbogar, Ana, Studovic, Maja, Nemoda, Stevan, Oka, Nikola, Đurović, Dejan M., Kadic, Nikola, Bakić, Vukman, Belošević, Srđan, Erić, Aleksandar, Mladenovic, Rastko, Paprika, Milijana, Delalic, Nijaz, Lekic, Alija, Bajramovic, Rasim, Teskeredzic, Armin, Smajevic, Izet, Dzaferovic, Ejub, Begic, Fajik, Lulic, Haris, Metovic, Sadjit, Petrović, Semin, Djugum, Adnan, Kadric, Dzana, Hodzic, Nihad, Kulic, Fahrudin, Kazagic, Anes, Gafic, Admir, "Mapping the potential for decentralized energy generation based on RES in Western Balkans" in Thermal Science, 11, no. 3 (2007):7-26,
https://doi.org/10.2298/TSC10703007S . .

TY  - JOUR
AU  - Mladenovic, Rastko
AU  - Belošević, Srđan
AU  - Paprika, Milijana
AU  - Komatina, Mirko
AU  - Dakić, Dragoljub V.
AU  - Erić, Aleksandar
AU  - Đurović, Dejan M.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3209
AB  - Due to a significant increase in electricity prices during the last decade and insufficient production capacity of the electric power industry in Serbia, many households that are currently using electric heat storage furnaces for heating have been forced to find an alternative solution for heating. A possible solution is replacing electric heating appliances with similar solid fuel-fired ones. Existing solid fuel-fired furnaces are often unsatisfactory with respect to their efficiencies and flue gas emissions. A prototype of a new concept of heat storage, solid fuel-fired furnace has been developed to meet these growing needs, providing electricity saving together with considerable environmental benefits. In order to examine furnace performance, efficiency and environmental aspects, and to assess the influence of air excess control in the furnace on the efficiency and flue gas emissions, numerous experimental tests were conducted. The amount of combustion air, the flue gas flow rate and the fuel feeding regime have been adjusted in order to keep the flue gas oxygen content in a relatively narrow range, thus obtaining controlled combustion conditions and, correspondingly, lower carbon monoxide emission and higher furnace efficiency. In this way, the furnace was made able to respond to the changes in heating needs, fuel quality and other parameters, which is considered to be advantageous in comparison with similar solid-fuel fired furnaces. (c) 2007 Elsevier Ltd. All rights reserved.
T2  - Applied Thermal Engineering
T1  - Effects of air excess control in a heat storage solid fuel-fired household furnace
VL  - 27
IS  - 13
SP  - 2243
EP  - 2251
DO  - 10.1016/j.applthermaleng.2007.01.016
ER  - 

@article{
author = "Mladenovic, Rastko and Belošević, Srđan and Paprika, Milijana and Komatina, Mirko and Dakić, Dragoljub V. and Erić, Aleksandar and Đurović, Dejan M.",
year = "2007",
abstract = "Due to a significant increase in electricity prices during the last decade and insufficient production capacity of the electric power industry in Serbia, many households that are currently using electric heat storage furnaces for heating have been forced to find an alternative solution for heating. A possible solution is replacing electric heating appliances with similar solid fuel-fired ones. Existing solid fuel-fired furnaces are often unsatisfactory with respect to their efficiencies and flue gas emissions. A prototype of a new concept of heat storage, solid fuel-fired furnace has been developed to meet these growing needs, providing electricity saving together with considerable environmental benefits. In order to examine furnace performance, efficiency and environmental aspects, and to assess the influence of air excess control in the furnace on the efficiency and flue gas emissions, numerous experimental tests were conducted. The amount of combustion air, the flue gas flow rate and the fuel feeding regime have been adjusted in order to keep the flue gas oxygen content in a relatively narrow range, thus obtaining controlled combustion conditions and, correspondingly, lower carbon monoxide emission and higher furnace efficiency. In this way, the furnace was made able to respond to the changes in heating needs, fuel quality and other parameters, which is considered to be advantageous in comparison with similar solid-fuel fired furnaces. (c) 2007 Elsevier Ltd. All rights reserved.",
journal = "Applied Thermal Engineering",
title = "Effects of air excess control in a heat storage solid fuel-fired household furnace",
volume = "27",
number = "13",
pages = "2243-2251",
doi = "10.1016/j.applthermaleng.2007.01.016"
}

Mladenovic, R., Belošević, S., Paprika, M., Komatina, M., Dakić, D. V., Erić, A.,& Đurović, D. M.. (2007). Effects of air excess control in a heat storage solid fuel-fired household furnace. in Applied Thermal Engineering, 27(13), 2243-2251.
https://doi.org/10.1016/j.applthermaleng.2007.01.016

Mladenovic R, Belošević S, Paprika M, Komatina M, Dakić DV, Erić A, Đurović DM. Effects of air excess control in a heat storage solid fuel-fired household furnace. in Applied Thermal Engineering. 2007;27(13):2243-2251.
doi:10.1016/j.applthermaleng.2007.01.016 .

Mladenovic, Rastko, Belošević, Srđan, Paprika, Milijana, Komatina, Mirko, Dakić, Dragoljub V., Erić, Aleksandar, Đurović, Dejan M., "Effects of air excess control in a heat storage solid fuel-fired household furnace" in Applied Thermal Engineering, 27, no. 13 (2007):2243-2251,
https://doi.org/10.1016/j.applthermaleng.2007.01.016 . .