Stefanović, Predrag Lj.

Link to this page

Authority KeyName Variants
f3a22929-c192-46ea-af95-3c2cc3e3c585
  • Stefanović, Predrag Lj. (32)
Projects
Pollution Reduction from Thermal Power Plants of the Public Enterprise “Electric Power Industry of Serbia” Domestic Lignite Quality and Combustion Technology Enhancement for Energy Efficiency Increase and Reduction of Harmful Gases and Particulate Matter Emissions from Thermal Power Plants of Public Enterprise ”Electric Power Industry of Serbia”
New industrial and environmental application of chemical thermodynamics to the development of the chemical processes with multiphase and multicomponent systems Development and improvement of technologies for energy efficient and environmentally sound use of several types of agricultural and forest biomass and possible utilization for cogeneration
Fluidized bed combustion facility improvements as a step forward in developing energy efficient and environmentally sound waste combustion technology in fluidized bed combustors European Commission [MEST-CT-2005-021018]
Nuclear physics, methods and application Cost-effective selection of new technologies and concepts of defense through social reforms and strategic orientations of Serbia in 21. century
Increase in energy and ecology efficiency of processes in pulverized coal-fired furnace and optimization of utility steam boiler air preheater by using in-house developed software tools Research and Development of Advanced Design Approaches for High Performance Composite Rotor Blades
Ministry of Education, Science and Technological Development, Serbia Public Enterprise Electric Power Industry of Serbia
Public Enterprise Electric Power Industry of Serbia, Belgrade, Serbia Research Fund of Ministry of Education, Science and Technology Development of the Republic of Serbia
Scientific Fund of the Republic of Serbia

Author's Bibliography

Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy: Part B

Stefanović, Predrag Lj.; Cvetinović, Dejan; Marković, Zoran M.; Erić, Milić D.; Oka, Simeon N.; Repić, Branislav

(2019)

TY  - JOUR
AU  - Stefanović, Predrag Lj.
AU  - Cvetinović, Dejan
AU  - Marković, Zoran M.
AU  - Erić, Milić D.
AU  - Oka, Simeon N.
AU  - Repić, Branislav
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8981
AB  - Paper presents short review of research problems, applied methods for solving problems and main results obtained by the researchers in Laboratory for Ther-mal Engineering and Energy (LTE) of the "Vinca" Institute of Nuclear Sciences, Belgrade, Serbia dealing with pulverized coal combustion processes and tech-nologies for reduction of pollutions problems at thermal power plants in a period since 2000. The presented results were published in numerous studies realized for different users, Ph. D., Masters, and Specialist thesis, in international and domestic scientific journals and monographs, presented at numerous internation-al and domestic scientific conferences, etc. Presented research projects and re-sults of applied research projects realized at pulverized coal combustion thermal power plants clearly show that LTE team was involved in key activities of reha-bilitation and modernization, including implementation of best available technol-ogies for pollution reduction at thermal power plants, in the region of South East Europe.
T2  - Thermal Science
T1  - Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy: Part B
VL  - 23
IS  - Suppl. 5
SP  - 1611
EP  - 1626
DO  - 10.2298/TSCI19S5611R
ER  - 
@article{
author = "Stefanović, Predrag Lj. and Cvetinović, Dejan and Marković, Zoran M. and Erić, Milić D. and Oka, Simeon N. and Repić, Branislav",
year = "2019",
abstract = "Paper presents short review of research problems, applied methods for solving problems and main results obtained by the researchers in Laboratory for Ther-mal Engineering and Energy (LTE) of the "Vinca" Institute of Nuclear Sciences, Belgrade, Serbia dealing with pulverized coal combustion processes and tech-nologies for reduction of pollutions problems at thermal power plants in a period since 2000. The presented results were published in numerous studies realized for different users, Ph. D., Masters, and Specialist thesis, in international and domestic scientific journals and monographs, presented at numerous internation-al and domestic scientific conferences, etc. Presented research projects and re-sults of applied research projects realized at pulverized coal combustion thermal power plants clearly show that LTE team was involved in key activities of reha-bilitation and modernization, including implementation of best available technol-ogies for pollution reduction at thermal power plants, in the region of South East Europe.",
journal = "Thermal Science",
title = "Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy: Part B",
volume = "23",
number = "Suppl. 5",
pages = "1611-1626",
doi = "10.2298/TSCI19S5611R"
}
Stefanović, P. Lj., Cvetinović, D., Marković, Z. M., Erić, M. D., Oka, S. N.,& Repić, B.. (2019). Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy: Part B. in Thermal Science, 23(Suppl. 5), 1611-1626.
https://doi.org/10.2298/TSCI19S5611R
Stefanović PL, Cvetinović D, Marković ZM, Erić MD, Oka SN, Repić B. Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy: Part B. in Thermal Science. 2019;23(Suppl. 5):1611-1626.
doi:10.2298/TSCI19S5611R .
Stefanović, Predrag Lj., Cvetinović, Dejan, Marković, Zoran M., Erić, Milić D., Oka, Simeon N., Repić, Branislav, "Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy: Part B" in Thermal Science, 23, no. Suppl. 5 (2019):1611-1626,
https://doi.org/10.2298/TSCI19S5611R . .

Pljevlja lignite carbon emission characteristics

Stefanović, Predrag Lj.; Živković, Nikola V.; Stojiljković, Dragoslava; Jovanović, Vladimir; Erić, Milić D.; Marković, Zoran M.; Cvetinović, Dejan

(2019)

TY  - JOUR
AU  - Stefanović, Predrag Lj.
AU  - Živković, Nikola V.
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir
AU  - Erić, Milić D.
AU  - Marković, Zoran M.
AU  - Cvetinović, Dejan
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8987
AB  - The anthropogenic emission of GHG especially CO has to be limited and reduced due to 2 their impact on global warming and climate change. Combustion of fossil fuels in the energy sector has a dominant share in total GHG emissions. In order to reduce GHG emission, European Union established a scheme for GHG allowance trading within the community, and the implementation of the European Union emission trading scheme, which is a key to GHG reduction in a cost-effective way. An important part of emission trading scheme is prescribed methodology for monitoring, reporting, and verification of the emission of GHG including characterization of the local fuels combusted by the energy sector. This paper presents lignite characteristics from open-pit mine Borovica- Pljevlja, which has highest coal production in Montenegro (>1.2 Mt per year), including evaluation of its carbon emission factor based on the laboratory analysis of 72 coal samples. Testing of the samples included proximate and ultimate analysis, as well as, net calorific value determination. In accordance with the obtained results, linear correlations between net calorific value and combustible matter content, carbon content and combustible matter content, hydrogen content and combustible matter content, carbon content and net calorific value, were established. Finally, the non-linear analytical correlation between carbon emission factor and net calorific value for Pljevlja lignite was proposed, as a base for the precise calculation of CO emission evaluation.
T2  - Thermal Science
T1  - Pljevlja lignite carbon emission characteristics
VL  - 23
IS  - Suppl. 5
SP  - 1523
EP  - 1531
DO  - 10.2298/TSCI180726288S
ER  - 
@article{
author = "Stefanović, Predrag Lj. and Živković, Nikola V. and Stojiljković, Dragoslava and Jovanović, Vladimir and Erić, Milić D. and Marković, Zoran M. and Cvetinović, Dejan",
year = "2019",
abstract = "The anthropogenic emission of GHG especially CO has to be limited and reduced due to 2 their impact on global warming and climate change. Combustion of fossil fuels in the energy sector has a dominant share in total GHG emissions. In order to reduce GHG emission, European Union established a scheme for GHG allowance trading within the community, and the implementation of the European Union emission trading scheme, which is a key to GHG reduction in a cost-effective way. An important part of emission trading scheme is prescribed methodology for monitoring, reporting, and verification of the emission of GHG including characterization of the local fuels combusted by the energy sector. This paper presents lignite characteristics from open-pit mine Borovica- Pljevlja, which has highest coal production in Montenegro (>1.2 Mt per year), including evaluation of its carbon emission factor based on the laboratory analysis of 72 coal samples. Testing of the samples included proximate and ultimate analysis, as well as, net calorific value determination. In accordance with the obtained results, linear correlations between net calorific value and combustible matter content, carbon content and combustible matter content, hydrogen content and combustible matter content, carbon content and net calorific value, were established. Finally, the non-linear analytical correlation between carbon emission factor and net calorific value for Pljevlja lignite was proposed, as a base for the precise calculation of CO emission evaluation.",
journal = "Thermal Science",
title = "Pljevlja lignite carbon emission characteristics",
volume = "23",
number = "Suppl. 5",
pages = "1523-1531",
doi = "10.2298/TSCI180726288S"
}
Stefanović, P. Lj., Živković, N. V., Stojiljković, D., Jovanović, V., Erić, M. D., Marković, Z. M.,& Cvetinović, D.. (2019). Pljevlja lignite carbon emission characteristics. in Thermal Science, 23(Suppl. 5), 1523-1531.
https://doi.org/10.2298/TSCI180726288S
Stefanović PL, Živković NV, Stojiljković D, Jovanović V, Erić MD, Marković ZM, Cvetinović D. Pljevlja lignite carbon emission characteristics. in Thermal Science. 2019;23(Suppl. 5):1523-1531.
doi:10.2298/TSCI180726288S .
Stefanović, Predrag Lj., Živković, Nikola V., Stojiljković, Dragoslava, Jovanović, Vladimir, Erić, Milić D., Marković, Zoran M., Cvetinović, Dejan, "Pljevlja lignite carbon emission characteristics" in Thermal Science, 23, no. Suppl. 5 (2019):1523-1531,
https://doi.org/10.2298/TSCI180726288S . .
1
1

Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy-Part A

Repić, Branislav; Stefanović, Predrag Lj.; Belošević, Srđan; Crnomarković, Nenad Đ.; Oka, Simeon N.

(2019)

TY  - JOUR
AU  - Repić, Branislav
AU  - Stefanović, Predrag Lj.
AU  - Belošević, Srđan
AU  - Crnomarković, Nenad Đ.
AU  - Oka, Simeon N.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8946
AB  - The paper presents an overview of the results of the investigations of the process-es that take place in pulverized coal combustion boilers and power plants which, in a longer period of time, were realized in the Laboratory for Thermal Engineer-ing and Energy of the "Vinca" Institute of Nuclear Sciences. The presented re-sults were published in numerous studies realized for different users, Ph. D., M. Sc., and specialist thesis, in international and domestic scientific journals and monographs, presented at numerous international and domestic scientific meet-ings, etc. The main goal of the paper is to chronologically present the results of domestic research that at one time were at an enviable international level, with concrete practical applications for domestic users. This is especially important to contrast the present situation when domestic research in this area is scarce and when the energy sector relies practically only on imported technologies and for-eign consultancy. © 2019 Society of Thermal Engineers of Serbia.
T2  - Thermal Science
T1  - Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy-Part A
VL  - 23
IS  - Suppl. 5
SP  - S1587
EP  - S1609
DO  - 10.2298/TSCI191030443R
ER  - 
@article{
author = "Repić, Branislav and Stefanović, Predrag Lj. and Belošević, Srđan and Crnomarković, Nenad Đ. and Oka, Simeon N.",
year = "2019",
abstract = "The paper presents an overview of the results of the investigations of the process-es that take place in pulverized coal combustion boilers and power plants which, in a longer period of time, were realized in the Laboratory for Thermal Engineer-ing and Energy of the "Vinca" Institute of Nuclear Sciences. The presented re-sults were published in numerous studies realized for different users, Ph. D., M. Sc., and specialist thesis, in international and domestic scientific journals and monographs, presented at numerous international and domestic scientific meet-ings, etc. The main goal of the paper is to chronologically present the results of domestic research that at one time were at an enviable international level, with concrete practical applications for domestic users. This is especially important to contrast the present situation when domestic research in this area is scarce and when the energy sector relies practically only on imported technologies and for-eign consultancy. © 2019 Society of Thermal Engineers of Serbia.",
journal = "Thermal Science",
title = "Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy-Part A",
volume = "23",
number = "Suppl. 5",
pages = "S1587-S1609",
doi = "10.2298/TSCI191030443R"
}
Repić, B., Stefanović, P. Lj., Belošević, S., Crnomarković, N. Đ.,& Oka, S. N.. (2019). Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy-Part A. in Thermal Science, 23(Suppl. 5), S1587-S1609.
https://doi.org/10.2298/TSCI191030443R
Repić B, Stefanović PL, Belošević S, Crnomarković NĐ, Oka SN. Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy-Part A. in Thermal Science. 2019;23(Suppl. 5):S1587-S1609.
doi:10.2298/TSCI191030443R .
Repić, Branislav, Stefanović, Predrag Lj., Belošević, Srđan, Crnomarković, Nenad Đ., Oka, Simeon N., "Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy-Part A" in Thermal Science, 23, no. Suppl. 5 (2019):S1587-S1609,
https://doi.org/10.2298/TSCI191030443R . .

Results of the modernization of the electrostatic precipitator at unit B1 of the Thermal Power Plant Kostolac B

Erić, Milić; Stefanović, Predrag Lj.; Marković, Zoran M.; Jovanović, Rastko D.; Lazović, Ivan; Živković, Nikola V.; Ilić, Željko

(2018)

TY  - JOUR
AU  - Erić, Milić
AU  - Stefanović, Predrag Lj.
AU  - Marković, Zoran M.
AU  - Jovanović, Rastko D.
AU  - Lazović, Ivan
AU  - Živković, Nikola V.
AU  - Ilić, Željko
PY  - 2018
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=0354-983618623E
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8030
AB  - The electrostatic precipitator system of the lignite fired 350 MWe unit B1 of Thermal Power Plant Kostolac B has been modernized during 2014. The results of complex in site measurements, performed in the frame of performance control test at the beginning of the exploitation period of the upgraded electrostatic pre-cipitator proved that, under normal and guarantee working conditions of the boiler and precipitator, the emission of particulate matter do not exceed limiting value. After the period of precipitator further adjustments, five series of meas-urements in the frame of acceptance test were performed in accordance with rel-evant standards. This paper presents results of the investigation of particulate matter concentration, laboratory analysis of the lignite, fly and bottom ash sam-ples, working parameters of the unit and upgraded electrostatic precipitator as well as results of the calculations. The averaged mean particulate concentration at the exit of upgraded electrostatic precipitator of the unit B1 during Acceptance test was below guaranteed value. It is confirmed that adjustments of electrostatic precipitator electrical parameters have improved electrostatic precipitator effi-ciency, as well that electrostatic precipitatorcould work highly efficiently in en-ergy save mode with lower power consumption. © 2018 Society of Thermal Engineers of Serbia.
T2  - Thermal Science
T1  - Results of the modernization of the electrostatic precipitator at unit B1 of the Thermal Power Plant Kostolac B
VL  - 22
IS  - Suppl. 5
SP  - 1623
EP  - 1634
DO  - 10.2298/TSCI18S5623E
ER  - 
@article{
author = "Erić, Milić and Stefanović, Predrag Lj. and Marković, Zoran M. and Jovanović, Rastko D. and Lazović, Ivan and Živković, Nikola V. and Ilić, Željko",
year = "2018",
abstract = "The electrostatic precipitator system of the lignite fired 350 MWe unit B1 of Thermal Power Plant Kostolac B has been modernized during 2014. The results of complex in site measurements, performed in the frame of performance control test at the beginning of the exploitation period of the upgraded electrostatic pre-cipitator proved that, under normal and guarantee working conditions of the boiler and precipitator, the emission of particulate matter do not exceed limiting value. After the period of precipitator further adjustments, five series of meas-urements in the frame of acceptance test were performed in accordance with rel-evant standards. This paper presents results of the investigation of particulate matter concentration, laboratory analysis of the lignite, fly and bottom ash sam-ples, working parameters of the unit and upgraded electrostatic precipitator as well as results of the calculations. The averaged mean particulate concentration at the exit of upgraded electrostatic precipitator of the unit B1 during Acceptance test was below guaranteed value. It is confirmed that adjustments of electrostatic precipitator electrical parameters have improved electrostatic precipitator effi-ciency, as well that electrostatic precipitatorcould work highly efficiently in en-ergy save mode with lower power consumption. © 2018 Society of Thermal Engineers of Serbia.",
journal = "Thermal Science",
title = "Results of the modernization of the electrostatic precipitator at unit B1 of the Thermal Power Plant Kostolac B",
volume = "22",
number = "Suppl. 5",
pages = "1623-1634",
doi = "10.2298/TSCI18S5623E"
}
Erić, M., Stefanović, P. Lj., Marković, Z. M., Jovanović, R. D., Lazović, I., Živković, N. V.,& Ilić, Ž.. (2018). Results of the modernization of the electrostatic precipitator at unit B1 of the Thermal Power Plant Kostolac B. in Thermal Science, 22(Suppl. 5), 1623-1634.
https://doi.org/10.2298/TSCI18S5623E
Erić M, Stefanović PL, Marković ZM, Jovanović RD, Lazović I, Živković NV, Ilić Ž. Results of the modernization of the electrostatic precipitator at unit B1 of the Thermal Power Plant Kostolac B. in Thermal Science. 2018;22(Suppl. 5):1623-1634.
doi:10.2298/TSCI18S5623E .
Erić, Milić, Stefanović, Predrag Lj., Marković, Zoran M., Jovanović, Rastko D., Lazović, Ivan, Živković, Nikola V., Ilić, Željko, "Results of the modernization of the electrostatic precipitator at unit B1 of the Thermal Power Plant Kostolac B" in Thermal Science, 22, no. Suppl. 5 (2018):1623-1634,
https://doi.org/10.2298/TSCI18S5623E . .
1
3
3

Review of the Research on the Turbulence in the Laboratory for Thermal Engineering and Energy

Cvetinović, Dejan; Stefanović, Predrag Lj.; Bakić, Vukman; Oka, Simeon N.

(2017)

TY  - JOUR
AU  - Cvetinović, Dejan
AU  - Stefanović, Predrag Lj.
AU  - Bakić, Vukman
AU  - Oka, Simeon N.
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7196
AB  - Paper gives a review of the most important results of turbulence research achieved by the Laboratory for Thermal Engineering and Energy at the Vinca Insitute of Nuclear Sciences. Paper presents detailed overview of the history of the scientific research provided in the laboratory, from the beginning in the mid-60s to today, pointing out the main reasons initiating the investigations in this field. After the first period, which was mainly devoted to the research of the structure of the turbulence, since the beginning of the 80s, research is mainly oriented to the flows at high temperatures including chemical reactions and to the development and improvement of differential mathematical models as a modern and very efficient tool in the technological development. This research significantly contributed to the development of pulverized coal burners, plasma-chemical reactors, and optimization of pulverized coal fired boilers operating parameters and prediction of the greenhouse gases emissions. Most recent period includes experimental and numerical studies of the coherent structures in turbulent fluid jets, mathematical modeling of various turbulent thermal flow processes including two-phase turbulent flow in the multiphase heat exchangers and mathematical modeling of the atmospheric boundary layer.
T2  - Thermal Science
T1  - Review of the Research on the Turbulence in the Laboratory for Thermal Engineering and Energy
VL  - 21
SP  - S875
EP  - S898
DO  - 10.2298/TSCI160221330C
ER  - 
@article{
author = "Cvetinović, Dejan and Stefanović, Predrag Lj. and Bakić, Vukman and Oka, Simeon N.",
year = "2017",
abstract = "Paper gives a review of the most important results of turbulence research achieved by the Laboratory for Thermal Engineering and Energy at the Vinca Insitute of Nuclear Sciences. Paper presents detailed overview of the history of the scientific research provided in the laboratory, from the beginning in the mid-60s to today, pointing out the main reasons initiating the investigations in this field. After the first period, which was mainly devoted to the research of the structure of the turbulence, since the beginning of the 80s, research is mainly oriented to the flows at high temperatures including chemical reactions and to the development and improvement of differential mathematical models as a modern and very efficient tool in the technological development. This research significantly contributed to the development of pulverized coal burners, plasma-chemical reactors, and optimization of pulverized coal fired boilers operating parameters and prediction of the greenhouse gases emissions. Most recent period includes experimental and numerical studies of the coherent structures in turbulent fluid jets, mathematical modeling of various turbulent thermal flow processes including two-phase turbulent flow in the multiphase heat exchangers and mathematical modeling of the atmospheric boundary layer.",
journal = "Thermal Science",
title = "Review of the Research on the Turbulence in the Laboratory for Thermal Engineering and Energy",
volume = "21",
pages = "S875-S898",
doi = "10.2298/TSCI160221330C"
}
Cvetinović, D., Stefanović, P. Lj., Bakić, V.,& Oka, S. N.. (2017). Review of the Research on the Turbulence in the Laboratory for Thermal Engineering and Energy. in Thermal Science, 21, S875-S898.
https://doi.org/10.2298/TSCI160221330C
Cvetinović D, Stefanović PL, Bakić V, Oka SN. Review of the Research on the Turbulence in the Laboratory for Thermal Engineering and Energy. in Thermal Science. 2017;21:S875-S898.
doi:10.2298/TSCI160221330C .
Cvetinović, Dejan, Stefanović, Predrag Lj., Bakić, Vukman, Oka, Simeon N., "Review of the Research on the Turbulence in the Laboratory for Thermal Engineering and Energy" in Thermal Science, 21 (2017):S875-S898,
https://doi.org/10.2298/TSCI160221330C . .
1
4
5

Experimental and Simulation Testing of Thermal Loading in the Jet Tabs of a Thrust Vector Control System

Zivkovic, Sasa Z.; Milinovic, Momcilo M.; Stefanović, Predrag Lj.; Pavlović, Pavle B.; Gligorijevic, Nikola I.

(2016)

TY  - JOUR
AU  - Zivkovic, Sasa Z.
AU  - Milinovic, Momcilo M.
AU  - Stefanović, Predrag Lj.
AU  - Pavlović, Pavle B.
AU  - Gligorijevic, Nikola I.
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1150
AB  - The paper discusses the temperature changes in mechanical jet tabs in a system of rocket motor thrust vector control, estimated by the simulation and experimental tests methodology. The heat transfer calculation is based on complex computational fluid dynamics simulations of both the nozzle and external tab flows, as the comprehensive integral flow zones with high flow parameters gradients. Due to a complexity of the model for flow calculations, the experimental estimation of the calculated results is carried out. The temperature is measured by jet tabs embedded thermocouples, and conducted through the rocket motor static tests. A good agreement of the calculated and measured results is achieved. The main aim of the developed method is to establish an approved calculation tool for designing new thurst vector control systems in order to avoid disadvantages due to overheating.
T2  - Thermal Science
T1  - Experimental and Simulation Testing of Thermal Loading in the Jet Tabs of a Thrust Vector Control System
VL  - 20
SP  - S275
EP  - S286
DO  - 10.2298/TSCI150914208Z
ER  - 
@article{
author = "Zivkovic, Sasa Z. and Milinovic, Momcilo M. and Stefanović, Predrag Lj. and Pavlović, Pavle B. and Gligorijevic, Nikola I.",
year = "2016",
abstract = "The paper discusses the temperature changes in mechanical jet tabs in a system of rocket motor thrust vector control, estimated by the simulation and experimental tests methodology. The heat transfer calculation is based on complex computational fluid dynamics simulations of both the nozzle and external tab flows, as the comprehensive integral flow zones with high flow parameters gradients. Due to a complexity of the model for flow calculations, the experimental estimation of the calculated results is carried out. The temperature is measured by jet tabs embedded thermocouples, and conducted through the rocket motor static tests. A good agreement of the calculated and measured results is achieved. The main aim of the developed method is to establish an approved calculation tool for designing new thurst vector control systems in order to avoid disadvantages due to overheating.",
journal = "Thermal Science",
title = "Experimental and Simulation Testing of Thermal Loading in the Jet Tabs of a Thrust Vector Control System",
volume = "20",
pages = "S275-S286",
doi = "10.2298/TSCI150914208Z"
}
Zivkovic, S. Z., Milinovic, M. M., Stefanović, P. Lj., Pavlović, P. B.,& Gligorijevic, N. I.. (2016). Experimental and Simulation Testing of Thermal Loading in the Jet Tabs of a Thrust Vector Control System. in Thermal Science, 20, S275-S286.
https://doi.org/10.2298/TSCI150914208Z
Zivkovic SZ, Milinovic MM, Stefanović PL, Pavlović PB, Gligorijevic NI. Experimental and Simulation Testing of Thermal Loading in the Jet Tabs of a Thrust Vector Control System. in Thermal Science. 2016;20:S275-S286.
doi:10.2298/TSCI150914208Z .
Zivkovic, Sasa Z., Milinovic, Momcilo M., Stefanović, Predrag Lj., Pavlović, Pavle B., Gligorijevic, Nikola I., "Experimental and Simulation Testing of Thermal Loading in the Jet Tabs of a Thrust Vector Control System" in Thermal Science, 20 (2016):S275-S286,
https://doi.org/10.2298/TSCI150914208Z . .
3

Prof. Dr. Simeon Oka 80th Anniversary 56 Years of Scientific Activity 20 Years Acting as the Editor-in-Chief of the Journal Thermal Science

Stefanović, Predrag Lj.

(2016)

TY  - JOUR
AU  - Stefanović, Predrag Lj.
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1137
T2  - Thermal Science
T1  - Prof. Dr. Simeon Oka 80th Anniversary 56 Years of Scientific Activity 20 Years Acting as the Editor-in-Chief of the Journal Thermal Science
VL  - 20
SP  - SIX
EP  - SXIII
ER  - 
@article{
author = "Stefanović, Predrag Lj.",
year = "2016",
journal = "Thermal Science",
title = "Prof. Dr. Simeon Oka 80th Anniversary 56 Years of Scientific Activity 20 Years Acting as the Editor-in-Chief of the Journal Thermal Science",
volume = "20",
pages = "SIX-SXIII"
}
Stefanović, P. Lj.. (2016). Prof. Dr. Simeon Oka 80th Anniversary 56 Years of Scientific Activity 20 Years Acting as the Editor-in-Chief of the Journal Thermal Science. in Thermal Science, 20, SIX-SXIII.
Stefanović PL. Prof. Dr. Simeon Oka 80th Anniversary 56 Years of Scientific Activity 20 Years Acting as the Editor-in-Chief of the Journal Thermal Science. in Thermal Science. 2016;20:SIX-SXIII..
Stefanović, Predrag Lj., "Prof. Dr. Simeon Oka 80th Anniversary 56 Years of Scientific Activity 20 Years Acting as the Editor-in-Chief of the Journal Thermal Science" in Thermal Science, 20 (2016):SIX-SXIII.

Novel Fragmentation Model for Pulverized Coal Particles Gasification in Low Temperature Air Thermal Plasma

Jovanović, Rastko D.; Cvetinović, Dejan; Stefanović, Predrag Lj.; Škobalj, Predrag D.; Marković, Zoran M.

(2016)

TY  - JOUR
AU  - Jovanović, Rastko D.
AU  - Cvetinović, Dejan
AU  - Stefanović, Predrag Lj.
AU  - Škobalj, Predrag D.
AU  - Marković, Zoran M.
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1145
AB  - New system for start-up and flame support based on coal gasification by low temperature air thermal plasma is planned to supplement current heavy oil system in Serbian thermal power plants in order to decrease air pollutions emission and operational costs. Locally introduced plasma thermal energy heats up and ignites entrained coal particles, thus starting chain process which releases heat energy from gasified coal particles inside burner channel. Important stages during particle combustion, such as particle devolatilisation and char combustion, are described with satisfying accuracy in existing commercial computer fluid dynamics codes that are extensively used as powerful tool for pulverized coal combustion and gasification modeling. However, during plasma coal gasification, high plasma temperature induces strong thermal stresses inside interacting coal particles. These stresses lead to thermal shock and extensive particle fragmentation during which coal particles with initial size of 50-100 mu m disintegrate into fragments of at most 5-10 mu m. This intensifies volatile release by a factor 3-4 and substantially accelerates the oxidation of combustible matter. Particle fragmentation, due to its small size and thus limited influence on combustion process is commonly neglected in modelling. The main focus of this work is to suggest novel approach to pulverized coal gasification under high temperature conditions and to implement it into commercial comprehensive code ANSYS FLUENT 14.0. Proposed model was validated against experimental data obtained in newly built pilot scale direct current plasma burner test facility. Newly developed model showed very good agreement with experimental results with relative error less than 10%, while the standard built-in gasification model had error up to 25%.
T2  - Thermal Science
T1  - Novel Fragmentation Model for Pulverized Coal Particles Gasification in Low Temperature Air Thermal Plasma
VL  - 20
SP  - S207
EP  - S221
DO  - 10.2298/TSCI151222015J
ER  - 
@article{
author = "Jovanović, Rastko D. and Cvetinović, Dejan and Stefanović, Predrag Lj. and Škobalj, Predrag D. and Marković, Zoran M.",
year = "2016",
abstract = "New system for start-up and flame support based on coal gasification by low temperature air thermal plasma is planned to supplement current heavy oil system in Serbian thermal power plants in order to decrease air pollutions emission and operational costs. Locally introduced plasma thermal energy heats up and ignites entrained coal particles, thus starting chain process which releases heat energy from gasified coal particles inside burner channel. Important stages during particle combustion, such as particle devolatilisation and char combustion, are described with satisfying accuracy in existing commercial computer fluid dynamics codes that are extensively used as powerful tool for pulverized coal combustion and gasification modeling. However, during plasma coal gasification, high plasma temperature induces strong thermal stresses inside interacting coal particles. These stresses lead to thermal shock and extensive particle fragmentation during which coal particles with initial size of 50-100 mu m disintegrate into fragments of at most 5-10 mu m. This intensifies volatile release by a factor 3-4 and substantially accelerates the oxidation of combustible matter. Particle fragmentation, due to its small size and thus limited influence on combustion process is commonly neglected in modelling. The main focus of this work is to suggest novel approach to pulverized coal gasification under high temperature conditions and to implement it into commercial comprehensive code ANSYS FLUENT 14.0. Proposed model was validated against experimental data obtained in newly built pilot scale direct current plasma burner test facility. Newly developed model showed very good agreement with experimental results with relative error less than 10%, while the standard built-in gasification model had error up to 25%.",
journal = "Thermal Science",
title = "Novel Fragmentation Model for Pulverized Coal Particles Gasification in Low Temperature Air Thermal Plasma",
volume = "20",
pages = "S207-S221",
doi = "10.2298/TSCI151222015J"
}
Jovanović, R. D., Cvetinović, D., Stefanović, P. Lj., Škobalj, P. D.,& Marković, Z. M.. (2016). Novel Fragmentation Model for Pulverized Coal Particles Gasification in Low Temperature Air Thermal Plasma. in Thermal Science, 20, S207-S221.
https://doi.org/10.2298/TSCI151222015J
Jovanović RD, Cvetinović D, Stefanović PL, Škobalj PD, Marković ZM. Novel Fragmentation Model for Pulverized Coal Particles Gasification in Low Temperature Air Thermal Plasma. in Thermal Science. 2016;20:S207-S221.
doi:10.2298/TSCI151222015J .
Jovanović, Rastko D., Cvetinović, Dejan, Stefanović, Predrag Lj., Škobalj, Predrag D., Marković, Zoran M., "Novel Fragmentation Model for Pulverized Coal Particles Gasification in Low Temperature Air Thermal Plasma" in Thermal Science, 20 (2016):S207-S221,
https://doi.org/10.2298/TSCI151222015J . .
2
3

Assessment Results of Fluid-Structure Interaction Numerical Simulation Using Fuzzy Logic

Marković, Zoran M.; Stupar, Slobodan N.; Dinulovic, Mirko R.; Pekovic, Ognjen M.; Stefanović, Predrag Lj.; Cvetinović, Dejan

(2016)

TY  - JOUR
AU  - Marković, Zoran M.
AU  - Stupar, Slobodan N.
AU  - Dinulovic, Mirko R.
AU  - Pekovic, Ognjen M.
AU  - Stefanović, Predrag Lj.
AU  - Cvetinović, Dejan
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1147
AB  - A fuzzy approximation concept is applied in order to predict results of coupled computational structure mechanics and computational fluid dynamics while solving a problem of steady incompressible gas flow through thermally loaded rectangular thin-walled channel. Channel wall deforms into wave-type shapes depending on thermal load and fluid inlet velocity inducing the changes of fluid flow accordingly. A set of fluid-structure interaction numerical tests have been defined by varying the values of fluid inlet velocity, temperature of inner and outer surface of the channel wall, and numerical grid density. The unsteady Navier-Stokes equations are numerically solved using an element-based finite volume method and second order backward Euler discretization scheme. The structural model is solved by finite element method including geometric and material non-linearities. The implicit two-way iterative code coupling, partitioned solution approach, were used while solving these numerical tests. Results of numerical analysis indicate that gravity and pressure distribution inside the channel contributes to triggering the shape of deformation. In the inverse problem, the results of fluid-structure interaction numerical simulations formed a database of input variables for development fuzzy logic based models considering downstream pressure drop and maximum stresses as the objective functions. Developed fuzzy models predicted targeting results within a reasonable accuracy limit at lower computation cost compared to series of fluid-structure interaction numerical calculations. Smaller relative difference were obtained when calculating the values of pressure drop then maximal stresses indicating that transfer function influence on output values have to be additionally investigated.
T2  - Thermal Science
T1  - Assessment Results of Fluid-Structure Interaction Numerical Simulation Using Fuzzy Logic
VL  - 20
SP  - S235
EP  - S250
DO  - 10.2298/TSCI160111083M
ER  - 
@article{
author = "Marković, Zoran M. and Stupar, Slobodan N. and Dinulovic, Mirko R. and Pekovic, Ognjen M. and Stefanović, Predrag Lj. and Cvetinović, Dejan",
year = "2016",
abstract = "A fuzzy approximation concept is applied in order to predict results of coupled computational structure mechanics and computational fluid dynamics while solving a problem of steady incompressible gas flow through thermally loaded rectangular thin-walled channel. Channel wall deforms into wave-type shapes depending on thermal load and fluid inlet velocity inducing the changes of fluid flow accordingly. A set of fluid-structure interaction numerical tests have been defined by varying the values of fluid inlet velocity, temperature of inner and outer surface of the channel wall, and numerical grid density. The unsteady Navier-Stokes equations are numerically solved using an element-based finite volume method and second order backward Euler discretization scheme. The structural model is solved by finite element method including geometric and material non-linearities. The implicit two-way iterative code coupling, partitioned solution approach, were used while solving these numerical tests. Results of numerical analysis indicate that gravity and pressure distribution inside the channel contributes to triggering the shape of deformation. In the inverse problem, the results of fluid-structure interaction numerical simulations formed a database of input variables for development fuzzy logic based models considering downstream pressure drop and maximum stresses as the objective functions. Developed fuzzy models predicted targeting results within a reasonable accuracy limit at lower computation cost compared to series of fluid-structure interaction numerical calculations. Smaller relative difference were obtained when calculating the values of pressure drop then maximal stresses indicating that transfer function influence on output values have to be additionally investigated.",
journal = "Thermal Science",
title = "Assessment Results of Fluid-Structure Interaction Numerical Simulation Using Fuzzy Logic",
volume = "20",
pages = "S235-S250",
doi = "10.2298/TSCI160111083M"
}
Marković, Z. M., Stupar, S. N., Dinulovic, M. R., Pekovic, O. M., Stefanović, P. Lj.,& Cvetinović, D.. (2016). Assessment Results of Fluid-Structure Interaction Numerical Simulation Using Fuzzy Logic. in Thermal Science, 20, S235-S250.
https://doi.org/10.2298/TSCI160111083M
Marković ZM, Stupar SN, Dinulovic MR, Pekovic OM, Stefanović PL, Cvetinović D. Assessment Results of Fluid-Structure Interaction Numerical Simulation Using Fuzzy Logic. in Thermal Science. 2016;20:S235-S250.
doi:10.2298/TSCI160111083M .
Marković, Zoran M., Stupar, Slobodan N., Dinulovic, Mirko R., Pekovic, Ognjen M., Stefanović, Predrag Lj., Cvetinović, Dejan, "Assessment Results of Fluid-Structure Interaction Numerical Simulation Using Fuzzy Logic" in Thermal Science, 20 (2016):S235-S250,
https://doi.org/10.2298/TSCI160111083M . .
1
3

Natural radioactivity in lignite samples from open pit mines Kolubara, Serbia - risk assessment

Đurašević, Mirjana M.; Kandić, Aleksandar; Stefanović, Predrag Lj.; Vukanac, Ivana; Šešlak, Bojan Ž.; Milošević, Zoran; Markovic, T.

(2014)

TY  - JOUR
AU  - Đurašević, Mirjana M.
AU  - Kandić, Aleksandar
AU  - Stefanović, Predrag Lj.
AU  - Vukanac, Ivana
AU  - Šešlak, Bojan Ž.
AU  - Milošević, Zoran
AU  - Markovic, T.
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5975
AB  - Coal as fossil fuel mainly contains naturally occurring radionuclides from the uranium and thorium series and K-40. Use of coal, primarily in industry, as a result has dispersion of radioactive material from coal in and through air and water. The aim of this study was to determine the activity concentrations of natural radionuclides in coal samples from open pit mines Kolubara and to evaluate its effect on population health. The results showed that all measured and calculated values were below the limits recommended in international legislation. (c) 2013 Elsevier Ltd. All rights reserved.
T2  - Applied Radiation and Isotopes
T1  - Natural radioactivity in lignite samples from open pit mines Kolubara, Serbia - risk assessment
VL  - 87
IS  - SI
SP  - 73
EP  - 76
DO  - 10.1016/j.apradiso.2013.11.096
ER  - 
@article{
author = "Đurašević, Mirjana M. and Kandić, Aleksandar and Stefanović, Predrag Lj. and Vukanac, Ivana and Šešlak, Bojan Ž. and Milošević, Zoran and Markovic, T.",
year = "2014",
abstract = "Coal as fossil fuel mainly contains naturally occurring radionuclides from the uranium and thorium series and K-40. Use of coal, primarily in industry, as a result has dispersion of radioactive material from coal in and through air and water. The aim of this study was to determine the activity concentrations of natural radionuclides in coal samples from open pit mines Kolubara and to evaluate its effect on population health. The results showed that all measured and calculated values were below the limits recommended in international legislation. (c) 2013 Elsevier Ltd. All rights reserved.",
journal = "Applied Radiation and Isotopes",
title = "Natural radioactivity in lignite samples from open pit mines Kolubara, Serbia - risk assessment",
volume = "87",
number = "SI",
pages = "73-76",
doi = "10.1016/j.apradiso.2013.11.096"
}
Đurašević, M. M., Kandić, A., Stefanović, P. Lj., Vukanac, I., Šešlak, B. Ž., Milošević, Z.,& Markovic, T.. (2014). Natural radioactivity in lignite samples from open pit mines Kolubara, Serbia - risk assessment. in Applied Radiation and Isotopes, 87(SI), 73-76.
https://doi.org/10.1016/j.apradiso.2013.11.096
Đurašević MM, Kandić A, Stefanović PL, Vukanac I, Šešlak BŽ, Milošević Z, Markovic T. Natural radioactivity in lignite samples from open pit mines Kolubara, Serbia - risk assessment. in Applied Radiation and Isotopes. 2014;87(SI):73-76.
doi:10.1016/j.apradiso.2013.11.096 .
Đurašević, Mirjana M., Kandić, Aleksandar, Stefanović, Predrag Lj., Vukanac, Ivana, Šešlak, Bojan Ž., Milošević, Zoran, Markovic, T., "Natural radioactivity in lignite samples from open pit mines Kolubara, Serbia - risk assessment" in Applied Radiation and Isotopes, 87, no. SI (2014):73-76,
https://doi.org/10.1016/j.apradiso.2013.11.096 . .
7
9
10

Review of techological methods and experimental determination of thermodynamic and transport properties of reagents for carbon dioxide removal from flue gases

Spasojević, Vuk D.; Serbanovic, Slobodan P.; Stefanović, Predrag Lj.; Kijevčanin, Mirjana Lj.

(2014)

TY  - JOUR
AU  - Spasojević, Vuk D.
AU  - Serbanovic, Slobodan P.
AU  - Stefanović, Predrag Lj.
AU  - Kijevčanin, Mirjana Lj.
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5980
AB  - In this work a review of the currently available methods for carbon dioxide removal from flue gasses is given. Some of them are commercially available, while others are still under development. Special attention is given to detailed description of the methods based on hemi sorption by aqueous solutions of alkanolamines, which found wide commercial use in industry. Selection of appropriate absorbent, process equipment, methods, working parameters, combustion processes, etc., are some of the key points that will be reviewed within this work in order to present advantages and limitations of carbon dioxide removal methods. In the experimental section we have provided data on density, viscosity and refractive index of insufficiently investigated carbon dioxide removal agents, such as monoisopropanolamine (MIPA), diisopropanolamine (DIPA), triisopropanolamine (TIPA) and currently widely used dietanolamine (DEA). The data obtained are crucial for the equipment design and process optimization.
T2  - Hemijska industrija
T1  - Review of techological methods and experimental determination of thermodynamic and transport properties of reagents for carbon dioxide removal from flue gases
VL  - 68
IS  - 1
SP  - 123
EP  - 134
DO  - 10.2298/HEMIND130312039S
ER  - 
@article{
author = "Spasojević, Vuk D. and Serbanovic, Slobodan P. and Stefanović, Predrag Lj. and Kijevčanin, Mirjana Lj.",
year = "2014",
abstract = "In this work a review of the currently available methods for carbon dioxide removal from flue gasses is given. Some of them are commercially available, while others are still under development. Special attention is given to detailed description of the methods based on hemi sorption by aqueous solutions of alkanolamines, which found wide commercial use in industry. Selection of appropriate absorbent, process equipment, methods, working parameters, combustion processes, etc., are some of the key points that will be reviewed within this work in order to present advantages and limitations of carbon dioxide removal methods. In the experimental section we have provided data on density, viscosity and refractive index of insufficiently investigated carbon dioxide removal agents, such as monoisopropanolamine (MIPA), diisopropanolamine (DIPA), triisopropanolamine (TIPA) and currently widely used dietanolamine (DEA). The data obtained are crucial for the equipment design and process optimization.",
journal = "Hemijska industrija",
title = "Review of techological methods and experimental determination of thermodynamic and transport properties of reagents for carbon dioxide removal from flue gases",
volume = "68",
number = "1",
pages = "123-134",
doi = "10.2298/HEMIND130312039S"
}
Spasojević, V. D., Serbanovic, S. P., Stefanović, P. Lj.,& Kijevčanin, M. Lj.. (2014). Review of techological methods and experimental determination of thermodynamic and transport properties of reagents for carbon dioxide removal from flue gases. in Hemijska industrija, 68(1), 123-134.
https://doi.org/10.2298/HEMIND130312039S
Spasojević VD, Serbanovic SP, Stefanović PL, Kijevčanin ML. Review of techological methods and experimental determination of thermodynamic and transport properties of reagents for carbon dioxide removal from flue gases. in Hemijska industrija. 2014;68(1):123-134.
doi:10.2298/HEMIND130312039S .
Spasojević, Vuk D., Serbanovic, Slobodan P., Stefanović, Predrag Lj., Kijevčanin, Mirjana Lj., "Review of techological methods and experimental determination of thermodynamic and transport properties of reagents for carbon dioxide removal from flue gases" in Hemijska industrija, 68, no. 1 (2014):123-134,
https://doi.org/10.2298/HEMIND130312039S . .
1
1

Wet flue gas desulphurisation procedures and relevant solvents thermophysical properties determination

Živković, Nikola V.; Serbanovic, Slobodan P.; Zivkovic, Emila M.; Kijevčanin, Mirjana Lj.; Stefanović, Predrag Lj.

(2014)

TY  - JOUR
AU  - Živković, Nikola V.
AU  - Serbanovic, Slobodan P.
AU  - Zivkovic, Emila M.
AU  - Kijevčanin, Mirjana Lj.
AU  - Stefanović, Predrag Lj.
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/162
AB  - In order to mitigate climate change, the priority task is to reduce emissions of greenhouse gases, including sulfur oxides, from stationary power plants. The legal framework of the European Union has limited the allowable emissions of gases with harmful effects and fulfillment of this obligation is also ahead of the Republic of Serbia in the following years. In this paper the categorization of wet procedures for sulfur oxides removal is given. Wet procedure with the most widespread industrial application, lime/limestone process, has been described in detail. In addition, the procedures with chemical and physical absorption and solvent thermal regeneration, which recently gained more importance, have been presented. Experimentally determined thermophysical and transport properties of commercially used and alternative solvents, necessary for the equipment design and process optimization, are also given in the paper. The obtained values of densities and viscosities of pure chemicals - solvents, polyethylene glycol 200 (PEG 200), polyethylene glycol 400 (PEG 400), tetraethylene glycol dimethyl ether (TEGDMA), N-methyl-2-pyrolidon (NMP) and dimethylaniline (DMA), measured at the atmospheric pressure, are presented as a function of temperature.
T2  - Hemijska industrija
T1  - Wet flue gas desulphurisation procedures and relevant solvents thermophysical properties determination
VL  - 68
IS  - 4
SP  - 491
EP  - 500
DO  - 10.2298/HEMIND130610074Z
ER  - 
@article{
author = "Živković, Nikola V. and Serbanovic, Slobodan P. and Zivkovic, Emila M. and Kijevčanin, Mirjana Lj. and Stefanović, Predrag Lj.",
year = "2014",
abstract = "In order to mitigate climate change, the priority task is to reduce emissions of greenhouse gases, including sulfur oxides, from stationary power plants. The legal framework of the European Union has limited the allowable emissions of gases with harmful effects and fulfillment of this obligation is also ahead of the Republic of Serbia in the following years. In this paper the categorization of wet procedures for sulfur oxides removal is given. Wet procedure with the most widespread industrial application, lime/limestone process, has been described in detail. In addition, the procedures with chemical and physical absorption and solvent thermal regeneration, which recently gained more importance, have been presented. Experimentally determined thermophysical and transport properties of commercially used and alternative solvents, necessary for the equipment design and process optimization, are also given in the paper. The obtained values of densities and viscosities of pure chemicals - solvents, polyethylene glycol 200 (PEG 200), polyethylene glycol 400 (PEG 400), tetraethylene glycol dimethyl ether (TEGDMA), N-methyl-2-pyrolidon (NMP) and dimethylaniline (DMA), measured at the atmospheric pressure, are presented as a function of temperature.",
journal = "Hemijska industrija",
title = "Wet flue gas desulphurisation procedures and relevant solvents thermophysical properties determination",
volume = "68",
number = "4",
pages = "491-500",
doi = "10.2298/HEMIND130610074Z"
}
Živković, N. V., Serbanovic, S. P., Zivkovic, E. M., Kijevčanin, M. Lj.,& Stefanović, P. Lj.. (2014). Wet flue gas desulphurisation procedures and relevant solvents thermophysical properties determination. in Hemijska industrija, 68(4), 491-500.
https://doi.org/10.2298/HEMIND130610074Z
Živković NV, Serbanovic SP, Zivkovic EM, Kijevčanin ML, Stefanović PL. Wet flue gas desulphurisation procedures and relevant solvents thermophysical properties determination. in Hemijska industrija. 2014;68(4):491-500.
doi:10.2298/HEMIND130610074Z .
Živković, Nikola V., Serbanovic, Slobodan P., Zivkovic, Emila M., Kijevčanin, Mirjana Lj., Stefanović, Predrag Lj., "Wet flue gas desulphurisation procedures and relevant solvents thermophysical properties determination" in Hemijska industrija, 68, no. 4 (2014):491-500,
https://doi.org/10.2298/HEMIND130610074Z . .

Numerical investigation of pulverized coal jet flame characteristics under different oxy-fuel conditions

Jovanović, Rastko D.; Rasuo, Basko; Stefanović, Predrag Lj.; Cvetinović, Dejan; Swiatkowski, Bartosz

(2013)

TY  - JOUR
AU  - Jovanović, Rastko D.
AU  - Rasuo, Basko
AU  - Stefanović, Predrag Lj.
AU  - Cvetinović, Dejan
AU  - Swiatkowski, Bartosz
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5311
AB  - Pulverized coal combustion in mixture of oxygen and recycled flue gasses, known as oxy-fuel combustion, is considered as one of the several possible alternatives to conventional pulverized coal combustion. Switching from conventional pulverized-coal combustion to oxy-fuel combustion brings significant changes in flame properties among which the most important are ignition properties and flame stability. This paper presents the results of experimental and numerical analysis of ignition phenomena under O-2/CO2 mixtures with different oxygen content. The main focus of the presented paper is to suggest novel ignition sub-model which can describe all possible ignition mechanisms. Proposed ignition sub-model together with Large Eddy Simulation (LES) turbulence modeling enables accurate prediction of main flame characteristics: ignition point position, ignition temperature, and flame stability. (C) 2012 Elsevier Ltd. All rights reserved.
T2  - International Journal of Heat and Mass Transfer
T1  - Numerical investigation of pulverized coal jet flame characteristics under different oxy-fuel conditions
VL  - 58
IS  - 1-2
SP  - 654
EP  - 662
DO  - 10.1016/j.ijheatmasstransfer.2012.11.070
ER  - 
@article{
author = "Jovanović, Rastko D. and Rasuo, Basko and Stefanović, Predrag Lj. and Cvetinović, Dejan and Swiatkowski, Bartosz",
year = "2013",
abstract = "Pulverized coal combustion in mixture of oxygen and recycled flue gasses, known as oxy-fuel combustion, is considered as one of the several possible alternatives to conventional pulverized coal combustion. Switching from conventional pulverized-coal combustion to oxy-fuel combustion brings significant changes in flame properties among which the most important are ignition properties and flame stability. This paper presents the results of experimental and numerical analysis of ignition phenomena under O-2/CO2 mixtures with different oxygen content. The main focus of the presented paper is to suggest novel ignition sub-model which can describe all possible ignition mechanisms. Proposed ignition sub-model together with Large Eddy Simulation (LES) turbulence modeling enables accurate prediction of main flame characteristics: ignition point position, ignition temperature, and flame stability. (C) 2012 Elsevier Ltd. All rights reserved.",
journal = "International Journal of Heat and Mass Transfer",
title = "Numerical investigation of pulverized coal jet flame characteristics under different oxy-fuel conditions",
volume = "58",
number = "1-2",
pages = "654-662",
doi = "10.1016/j.ijheatmasstransfer.2012.11.070"
}
Jovanović, R. D., Rasuo, B., Stefanović, P. Lj., Cvetinović, D.,& Swiatkowski, B.. (2013). Numerical investigation of pulverized coal jet flame characteristics under different oxy-fuel conditions. in International Journal of Heat and Mass Transfer, 58(1-2), 654-662.
https://doi.org/10.1016/j.ijheatmasstransfer.2012.11.070
Jovanović RD, Rasuo B, Stefanović PL, Cvetinović D, Swiatkowski B. Numerical investigation of pulverized coal jet flame characteristics under different oxy-fuel conditions. in International Journal of Heat and Mass Transfer. 2013;58(1-2):654-662.
doi:10.1016/j.ijheatmasstransfer.2012.11.070 .
Jovanović, Rastko D., Rasuo, Basko, Stefanović, Predrag Lj., Cvetinović, Dejan, Swiatkowski, Bartosz, "Numerical investigation of pulverized coal jet flame characteristics under different oxy-fuel conditions" in International Journal of Heat and Mass Transfer, 58, no. 1-2 (2013):654-662,
https://doi.org/10.1016/j.ijheatmasstransfer.2012.11.070 . .
15
15
19

Convective drying of particulate solids - Packed vs. fluid bed operation

Stakic, Milan; Stefanović, Predrag Lj.; Cvetinović, Dejan; Škobalj, Predrag D.

(2013)

TY  - JOUR
AU  - Stakic, Milan
AU  - Stefanović, Predrag Lj.
AU  - Cvetinović, Dejan
AU  - Škobalj, Predrag D.
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5368
AB  - The paper addresses results for the case of convective drying of particulate solids in a packed and in a fluid bed, analyzing agreement between the numerical results and the results of corresponding experimental investigation, as well as the differences between packed and fluid bed operation. In the fluid bed simulation model of unsteady simultaneous one-dimensional heat and mass transfer between solids, gas phase and bubble phase during drying process, based on two-phase bubbling model, it is assumed that the gas-solid interface is at thermodynamic equilibrium. The basic idea is to calculate heat and mass transfer between gas and particles (i.e., the drying process) in suspension phase as for a packed bed of particles, where the drying rate (evaporated moisture flux) of the specific product is calculated by applying the concept of a drying coefficient. Mixing of the particles (i.e., the impact onto the heat and mass transfer coefficients) in the case of fluid bed is taken into account by means of the diffusion term in the differential equations, using an effective particle diffusion coefficient. Model validation was done on the basis of the experimental data obtained with narrow fraction of poppy seeds characterized by mean equivalent particle diameter (d(s.d) = 0.75 mm), re-wetted with required (calculated) amount of water up to the initial moisture content (X-0 = 0.54) for all experiments. Comparison of the drying kinetics, both experimental and numerical, has shown that higher gas (drying agent) temperatures, as well as velocities (flow-rates), induce faster drying. This effect is more pronounced for deeper beds, because of the larger amount of wet material to be dried using the same drying agent capacity. Bed temperature differences along the bed height are significant inside the packed bed, while in the fluid bed, for the same drying conditions, are almost negligible due to mixing of particles. Residence time is shorter in the case of a fluid bed drying compared to a packed bed drying. (C) 2012 Elsevier Ltd. All rights reserved.
T2  - International Journal of Heat and Mass Transfer
T1  - Convective drying of particulate solids - Packed vs. fluid bed operation
VL  - 59
SP  - 66
EP  - 74
DO  - 10.1016/j.ijheatmasstransfer.2012.11.078
ER  - 
@article{
author = "Stakic, Milan and Stefanović, Predrag Lj. and Cvetinović, Dejan and Škobalj, Predrag D.",
year = "2013",
abstract = "The paper addresses results for the case of convective drying of particulate solids in a packed and in a fluid bed, analyzing agreement between the numerical results and the results of corresponding experimental investigation, as well as the differences between packed and fluid bed operation. In the fluid bed simulation model of unsteady simultaneous one-dimensional heat and mass transfer between solids, gas phase and bubble phase during drying process, based on two-phase bubbling model, it is assumed that the gas-solid interface is at thermodynamic equilibrium. The basic idea is to calculate heat and mass transfer between gas and particles (i.e., the drying process) in suspension phase as for a packed bed of particles, where the drying rate (evaporated moisture flux) of the specific product is calculated by applying the concept of a drying coefficient. Mixing of the particles (i.e., the impact onto the heat and mass transfer coefficients) in the case of fluid bed is taken into account by means of the diffusion term in the differential equations, using an effective particle diffusion coefficient. Model validation was done on the basis of the experimental data obtained with narrow fraction of poppy seeds characterized by mean equivalent particle diameter (d(s.d) = 0.75 mm), re-wetted with required (calculated) amount of water up to the initial moisture content (X-0 = 0.54) for all experiments. Comparison of the drying kinetics, both experimental and numerical, has shown that higher gas (drying agent) temperatures, as well as velocities (flow-rates), induce faster drying. This effect is more pronounced for deeper beds, because of the larger amount of wet material to be dried using the same drying agent capacity. Bed temperature differences along the bed height are significant inside the packed bed, while in the fluid bed, for the same drying conditions, are almost negligible due to mixing of particles. Residence time is shorter in the case of a fluid bed drying compared to a packed bed drying. (C) 2012 Elsevier Ltd. All rights reserved.",
journal = "International Journal of Heat and Mass Transfer",
title = "Convective drying of particulate solids - Packed vs. fluid bed operation",
volume = "59",
pages = "66-74",
doi = "10.1016/j.ijheatmasstransfer.2012.11.078"
}
Stakic, M., Stefanović, P. Lj., Cvetinović, D.,& Škobalj, P. D.. (2013). Convective drying of particulate solids - Packed vs. fluid bed operation. in International Journal of Heat and Mass Transfer, 59, 66-74.
https://doi.org/10.1016/j.ijheatmasstransfer.2012.11.078
Stakic M, Stefanović PL, Cvetinović D, Škobalj PD. Convective drying of particulate solids - Packed vs. fluid bed operation. in International Journal of Heat and Mass Transfer. 2013;59:66-74.
doi:10.1016/j.ijheatmasstransfer.2012.11.078 .
Stakic, Milan, Stefanović, Predrag Lj., Cvetinović, Dejan, Škobalj, Predrag D., "Convective drying of particulate solids - Packed vs. fluid bed operation" in International Journal of Heat and Mass Transfer, 59 (2013):66-74,
https://doi.org/10.1016/j.ijheatmasstransfer.2012.11.078 . .
8
8
9

GHG (Greenhouse Gases) emission inventory and mitigation measures for public district heating plants in the Republic of Serbia

Cvetinović, Dejan; Stefanović, Predrag Lj.; Marković, Zoran M.; Bakić, Vukman; Turanjanin, Valentina; Jovanović, Marina P.; Vučićević, Biljana S.

(2013)

TY  - JOUR
AU  - Cvetinović, Dejan
AU  - Stefanović, Predrag Lj.
AU  - Marković, Zoran M.
AU  - Bakić, Vukman
AU  - Turanjanin, Valentina
AU  - Jovanović, Marina P.
AU  - Vučićević, Biljana S.
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5636
AB  - As a non-Annex I Party to the United Nations Framework Convention on Climate Change and Kyoto Protocol signatory, the Republic of Serbia has committed to develop GHG (Greenhouse Gases) emission inventory and prepare comprehensive program of mitigation measures at national level. The paper presents results of 2000-2008 GHG emission inventory assembled for PDH (Public District Heating) sub-sector in accordance with revised IPCC (Intergovernmental Panel on Climate Change) Tier 1 methodology. Evaluation of proposed mitigation measures was performed based on 2012 and 2015 GHG emission projections, obtained for basic and four alternative scenarios, all characterized by the same energy demand but with different fuel mix used. The first alternative scenario addresses GHG emissions in case that solid fuel is substituted by natural gas. The second alternative scenario represents a sub-scenario of the first alternative scenario, with additional substitution of liquid fuel with locally available biomass. Third alternative scenario addresses emissions resulting from complete fuel switch from natural gas to liquid fuel oil, while the final alternative scenario considers the case when natural gas is the only energy resource used. GHG emission trends in the period until 2015, examined in case of previously mentioned basic and four alternative scenarios, point out to the positive impact of fuel switch on GHG emission reduction and pathways for future implementation of proposed mitigation measures. Results obtained clearly quantified assumption that fuel substitution by locally available biomass could solve environmental problems, overcome problems associated with high prices of imported fuels, improve energy supply security and increase local employment. (c) 2012 Elsevier Ltd. All rights reserved.
T2  - Energy
T1  - GHG (Greenhouse Gases) emission inventory and mitigation measures for public district heating plants in the Republic of Serbia
VL  - 57
SP  - 788
EP  - 795
DO  - 10.1016/j.energy.2012.09.063
ER  - 
@article{
author = "Cvetinović, Dejan and Stefanović, Predrag Lj. and Marković, Zoran M. and Bakić, Vukman and Turanjanin, Valentina and Jovanović, Marina P. and Vučićević, Biljana S.",
year = "2013",
abstract = "As a non-Annex I Party to the United Nations Framework Convention on Climate Change and Kyoto Protocol signatory, the Republic of Serbia has committed to develop GHG (Greenhouse Gases) emission inventory and prepare comprehensive program of mitigation measures at national level. The paper presents results of 2000-2008 GHG emission inventory assembled for PDH (Public District Heating) sub-sector in accordance with revised IPCC (Intergovernmental Panel on Climate Change) Tier 1 methodology. Evaluation of proposed mitigation measures was performed based on 2012 and 2015 GHG emission projections, obtained for basic and four alternative scenarios, all characterized by the same energy demand but with different fuel mix used. The first alternative scenario addresses GHG emissions in case that solid fuel is substituted by natural gas. The second alternative scenario represents a sub-scenario of the first alternative scenario, with additional substitution of liquid fuel with locally available biomass. Third alternative scenario addresses emissions resulting from complete fuel switch from natural gas to liquid fuel oil, while the final alternative scenario considers the case when natural gas is the only energy resource used. GHG emission trends in the period until 2015, examined in case of previously mentioned basic and four alternative scenarios, point out to the positive impact of fuel switch on GHG emission reduction and pathways for future implementation of proposed mitigation measures. Results obtained clearly quantified assumption that fuel substitution by locally available biomass could solve environmental problems, overcome problems associated with high prices of imported fuels, improve energy supply security and increase local employment. (c) 2012 Elsevier Ltd. All rights reserved.",
journal = "Energy",
title = "GHG (Greenhouse Gases) emission inventory and mitigation measures for public district heating plants in the Republic of Serbia",
volume = "57",
pages = "788-795",
doi = "10.1016/j.energy.2012.09.063"
}
Cvetinović, D., Stefanović, P. Lj., Marković, Z. M., Bakić, V., Turanjanin, V., Jovanović, M. P.,& Vučićević, B. S.. (2013). GHG (Greenhouse Gases) emission inventory and mitigation measures for public district heating plants in the Republic of Serbia. in Energy, 57, 788-795.
https://doi.org/10.1016/j.energy.2012.09.063
Cvetinović D, Stefanović PL, Marković ZM, Bakić V, Turanjanin V, Jovanović MP, Vučićević BS. GHG (Greenhouse Gases) emission inventory and mitigation measures for public district heating plants in the Republic of Serbia. in Energy. 2013;57:788-795.
doi:10.1016/j.energy.2012.09.063 .
Cvetinović, Dejan, Stefanović, Predrag Lj., Marković, Zoran M., Bakić, Vukman, Turanjanin, Valentina, Jovanović, Marina P., Vučićević, Biljana S., "GHG (Greenhouse Gases) emission inventory and mitigation measures for public district heating plants in the Republic of Serbia" in Energy, 57 (2013):788-795,
https://doi.org/10.1016/j.energy.2012.09.063 . .
5
9
10

Evaluation of Kolubara Lignite Carbon Emission Characteristics

Stefanović, Predrag Lj.; Marković, Zoran M.; Bakić, Vukman; Cvetinović, Dejan; Spasojević, Vuk D.; Živković, Nikola V.

(2012)

TY  - JOUR
AU  - Stefanović, Predrag Lj.
AU  - Marković, Zoran M.
AU  - Bakić, Vukman
AU  - Cvetinović, Dejan
AU  - Spasojević, Vuk D.
AU  - Živković, Nikola V.
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5062
AB  - The revised Intergovernmental Panel on Climate Change guidelines for national greenhouse gas inventories recommends that more comprehensive and thus more reliable characteristics of the local fossil fuels should be used for the national greenhouse gas inventory calculations. This paper deal with the carbon emission characteristics of low-calorific lignite recovered from the Kolubara open-pit mine. The samples of coal were carefully selected in order to cover the net calorific value, ash and water content of the broad spectrum of the quality of the raw lignite supplied to the Serbian thermal power plants. Correlation analysis of the laboratory analysis data gave a linear dependency of the net calorific value on the combustible content in the coal samples. Also, linear correlation between the carbon content and the net calorific value was found. The regression analysis of experimentally determined coal characteristics implies that the carbon emission factor is dependent on the net calorific value. For the subset of raw lignite samples with the net calorific value Q(d)(r) = 6-10 MJ/kg, that is most representative for current and near future use for power generation in Serbian thermal power plants, the linear dependency CEFr (tC/TJ) = 34.407 - 0.5891.Q(d)(r) MJ/kg was proposed. Regarding the net calorific ranges of samples examined, the raw Kolubara lignite carbon emission factor is considerably higher than those recommended by Intergovernmental Panel on Climate Change Tier 1 method of 27.6 tC/TJ.
T2  - Thermal Science
T1  - Evaluation of Kolubara Lignite Carbon Emission Characteristics
VL  - 16
IS  - 3
SP  - 805
EP  - 816
DO  - 10.2298/TSCI120215130S
ER  - 
@article{
author = "Stefanović, Predrag Lj. and Marković, Zoran M. and Bakić, Vukman and Cvetinović, Dejan and Spasojević, Vuk D. and Živković, Nikola V.",
year = "2012",
abstract = "The revised Intergovernmental Panel on Climate Change guidelines for national greenhouse gas inventories recommends that more comprehensive and thus more reliable characteristics of the local fossil fuels should be used for the national greenhouse gas inventory calculations. This paper deal with the carbon emission characteristics of low-calorific lignite recovered from the Kolubara open-pit mine. The samples of coal were carefully selected in order to cover the net calorific value, ash and water content of the broad spectrum of the quality of the raw lignite supplied to the Serbian thermal power plants. Correlation analysis of the laboratory analysis data gave a linear dependency of the net calorific value on the combustible content in the coal samples. Also, linear correlation between the carbon content and the net calorific value was found. The regression analysis of experimentally determined coal characteristics implies that the carbon emission factor is dependent on the net calorific value. For the subset of raw lignite samples with the net calorific value Q(d)(r) = 6-10 MJ/kg, that is most representative for current and near future use for power generation in Serbian thermal power plants, the linear dependency CEFr (tC/TJ) = 34.407 - 0.5891.Q(d)(r) MJ/kg was proposed. Regarding the net calorific ranges of samples examined, the raw Kolubara lignite carbon emission factor is considerably higher than those recommended by Intergovernmental Panel on Climate Change Tier 1 method of 27.6 tC/TJ.",
journal = "Thermal Science",
title = "Evaluation of Kolubara Lignite Carbon Emission Characteristics",
volume = "16",
number = "3",
pages = "805-816",
doi = "10.2298/TSCI120215130S"
}
Stefanović, P. Lj., Marković, Z. M., Bakić, V., Cvetinović, D., Spasojević, V. D.,& Živković, N. V.. (2012). Evaluation of Kolubara Lignite Carbon Emission Characteristics. in Thermal Science, 16(3), 805-816.
https://doi.org/10.2298/TSCI120215130S
Stefanović PL, Marković ZM, Bakić V, Cvetinović D, Spasojević VD, Živković NV. Evaluation of Kolubara Lignite Carbon Emission Characteristics. in Thermal Science. 2012;16(3):805-816.
doi:10.2298/TSCI120215130S .
Stefanović, Predrag Lj., Marković, Zoran M., Bakić, Vukman, Cvetinović, Dejan, Spasojević, Vuk D., Živković, Nikola V., "Evaluation of Kolubara Lignite Carbon Emission Characteristics" in Thermal Science, 16, no. 3 (2012):805-816,
https://doi.org/10.2298/TSCI120215130S . .
3
6
9

Numerical Analysis of Momentum, Heat and Mass Transfer Between a Nitrogen Plasma Jet and B2o3 Particles Injected in An Axisymmetric Reactor

Stefanović, Predrag Lj.; Cvetinović, Dejan; Pavlović, Pavle B.; Kostic, Z.

(2010)

TY  - JOUR
AU  - Stefanović, Predrag Lj.
AU  - Cvetinović, Dejan
AU  - Pavlović, Pavle B.
AU  - Kostic, Z.
PY  - 2010
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/2561
AB  - For thermal plasma processing of solid particles (including processes like plasma spraying, spheroidizing, decomposition, melting or fuming of fine particles, synthesis of ultrafine particles, etc.) injection and mixing, i.e. momentum, heat and mass transfer between solid particles and plasma flow is of great importance for the quality of the product. There are numerous effects involved in plasma-particle interactions. Effects have different ranges of influence in particular plasma process or reactor. This paper present the results of a numerical analysis of the evaporation and decomposition of B2O3 powder (with particle diameter less than 100 mu m) injected in a nitrogen plasma axisymmetric, shielded reactor. This analysis serves as a basis for the optimization of the plasma reactor parameters, used for the plasma synthesis of BN ultrafine powder or boron powder production when B2O3 powder is used as a precursor. The computed fields of stream function and plasma temperature, particle trajectories and some parameters (plasma and particle temperature, particle Re, Nu and Kn* numbers, influence of evaporation and noncontinuum effects on momentum heat and mass transfer and instantaneous particle diameter) along particle trajectories are presented and discussed.
T2  - High Temperature Material Processes
T1  - Numerical Analysis of Momentum, Heat and Mass Transfer Between a Nitrogen Plasma Jet and B2o3 Particles Injected in An Axisymmetric Reactor
VL  - 14
IS  - 4
SP  - 353
EP  - 365
DO  - 10.1615/HighTempMatProc.v14.i4.50
ER  - 
@article{
author = "Stefanović, Predrag Lj. and Cvetinović, Dejan and Pavlović, Pavle B. and Kostic, Z.",
year = "2010",
abstract = "For thermal plasma processing of solid particles (including processes like plasma spraying, spheroidizing, decomposition, melting or fuming of fine particles, synthesis of ultrafine particles, etc.) injection and mixing, i.e. momentum, heat and mass transfer between solid particles and plasma flow is of great importance for the quality of the product. There are numerous effects involved in plasma-particle interactions. Effects have different ranges of influence in particular plasma process or reactor. This paper present the results of a numerical analysis of the evaporation and decomposition of B2O3 powder (with particle diameter less than 100 mu m) injected in a nitrogen plasma axisymmetric, shielded reactor. This analysis serves as a basis for the optimization of the plasma reactor parameters, used for the plasma synthesis of BN ultrafine powder or boron powder production when B2O3 powder is used as a precursor. The computed fields of stream function and plasma temperature, particle trajectories and some parameters (plasma and particle temperature, particle Re, Nu and Kn* numbers, influence of evaporation and noncontinuum effects on momentum heat and mass transfer and instantaneous particle diameter) along particle trajectories are presented and discussed.",
journal = "High Temperature Material Processes",
title = "Numerical Analysis of Momentum, Heat and Mass Transfer Between a Nitrogen Plasma Jet and B2o3 Particles Injected in An Axisymmetric Reactor",
volume = "14",
number = "4",
pages = "353-365",
doi = "10.1615/HighTempMatProc.v14.i4.50"
}
Stefanović, P. Lj., Cvetinović, D., Pavlović, P. B.,& Kostic, Z.. (2010). Numerical Analysis of Momentum, Heat and Mass Transfer Between a Nitrogen Plasma Jet and B2o3 Particles Injected in An Axisymmetric Reactor. in High Temperature Material Processes, 14(4), 353-365.
https://doi.org/10.1615/HighTempMatProc.v14.i4.50
Stefanović PL, Cvetinović D, Pavlović PB, Kostic Z. Numerical Analysis of Momentum, Heat and Mass Transfer Between a Nitrogen Plasma Jet and B2o3 Particles Injected in An Axisymmetric Reactor. in High Temperature Material Processes. 2010;14(4):353-365.
doi:10.1615/HighTempMatProc.v14.i4.50 .
Stefanović, Predrag Lj., Cvetinović, Dejan, Pavlović, Pavle B., Kostic, Z., "Numerical Analysis of Momentum, Heat and Mass Transfer Between a Nitrogen Plasma Jet and B2o3 Particles Injected in An Axisymmetric Reactor" in High Temperature Material Processes, 14, no. 4 (2010):353-365,
https://doi.org/10.1615/HighTempMatProc.v14.i4.50 . .

Investigation of Pressure Pulsations in the Furnace and Flue Gas Tract of the Pulverized Coal Combustion Utility Boiler

Erić, Milić D.; Cvetinović, Dejan; Stefanović, Predrag Lj.; Radovanovic, Predrag M.; Živković, Nikola V.

(2010)

TY  - JOUR
AU  - Erić, Milić D.
AU  - Cvetinović, Dejan
AU  - Stefanović, Predrag Lj.
AU  - Radovanovic, Predrag M.
AU  - Živković, Nikola V.
PY  - 2010
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3987
AB  - The paper presents new experimental method developed and new measuring system developed and installed into flame-gas tract of utility boiler. Investigations have been performed at the steam boiler of unit 2 at TPP Ptolemais. Ptolemais, Greece. which suffered from very unstable combustion and great pressure oscillations Experimental method. based on high-speed acquisition system. was developed and used for detection of pressure oscillations and determination of the origin of boiler unstable operation. Signals were obtained from piezoelectric pressure sensors located along the flame-gas tract of the steam boiler and time and frequency domain analysis were used for post processing of collected data. Investigations of the pressure oscillations in boiler gas tract have contributed to reveal origin of the boiler unstable operation. and have been of the great help in establishing proper boiler operation
T2  - Thermal Science
T1  - Investigation of Pressure Pulsations in the Furnace and Flue Gas Tract of the Pulverized Coal Combustion Utility Boiler
VL  - 14
IS  - 1
SP  - 261
EP  - 270
DO  - 10.2298/TSCI1001261E
ER  - 
@article{
author = "Erić, Milić D. and Cvetinović, Dejan and Stefanović, Predrag Lj. and Radovanovic, Predrag M. and Živković, Nikola V.",
year = "2010",
abstract = "The paper presents new experimental method developed and new measuring system developed and installed into flame-gas tract of utility boiler. Investigations have been performed at the steam boiler of unit 2 at TPP Ptolemais. Ptolemais, Greece. which suffered from very unstable combustion and great pressure oscillations Experimental method. based on high-speed acquisition system. was developed and used for detection of pressure oscillations and determination of the origin of boiler unstable operation. Signals were obtained from piezoelectric pressure sensors located along the flame-gas tract of the steam boiler and time and frequency domain analysis were used for post processing of collected data. Investigations of the pressure oscillations in boiler gas tract have contributed to reveal origin of the boiler unstable operation. and have been of the great help in establishing proper boiler operation",
journal = "Thermal Science",
title = "Investigation of Pressure Pulsations in the Furnace and Flue Gas Tract of the Pulverized Coal Combustion Utility Boiler",
volume = "14",
number = "1",
pages = "261-270",
doi = "10.2298/TSCI1001261E"
}
Erić, M. D., Cvetinović, D., Stefanović, P. Lj., Radovanovic, P. M.,& Živković, N. V.. (2010). Investigation of Pressure Pulsations in the Furnace and Flue Gas Tract of the Pulverized Coal Combustion Utility Boiler. in Thermal Science, 14(1), 261-270.
https://doi.org/10.2298/TSCI1001261E
Erić MD, Cvetinović D, Stefanović PL, Radovanovic PM, Živković NV. Investigation of Pressure Pulsations in the Furnace and Flue Gas Tract of the Pulverized Coal Combustion Utility Boiler. in Thermal Science. 2010;14(1):261-270.
doi:10.2298/TSCI1001261E .
Erić, Milić D., Cvetinović, Dejan, Stefanović, Predrag Lj., Radovanovic, Predrag M., Živković, Nikola V., "Investigation of Pressure Pulsations in the Furnace and Flue Gas Tract of the Pulverized Coal Combustion Utility Boiler" in Thermal Science, 14, no. 1 (2010):261-270,
https://doi.org/10.2298/TSCI1001261E . .
2
1

Numerical Simulation of the Influence of Stationary Louver and Coal Particle Size on Distribution of Pulverized Coal to the Feed Ducts of a Power Plant Burner

Živković, Goran S.; Nemoda, Stevan; Stefanović, Predrag Lj.; Radovanovic, Predrag

(2009)

TY  - JOUR
AU  - Živković, Goran S.
AU  - Nemoda, Stevan
AU  - Stefanović, Predrag Lj.
AU  - Radovanovic, Predrag
PY  - 2009
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3861
AB  - One of the key requirements related to successful utilization of plasma technology as an oil-free backup system for coal ignition and combustion stabilization in power plant boilers is provision of properly regulated pulverized coal distribution to the feed ducts leading the fuel mixture to a burner. Proper regulation of coal distribution is deemed essential for achieving an adequate pulverized coal concentration in the zone where thermal plasma is being introduced The said can be efficiently achieved by installation of stationary louver in the coal-air mixing duct ahead of the feed ducts of a burner. The paper addresses numerical simulation of a two-phase flow of air-pulverized coal mixture in the mixing ducts, analysing the effects of particle size distribution on pulverized coal distribution to the burner feed ducts. Numerical simulation was performed rising the FLUENT 63 commercial code and related poly-dispersed flow module, based on the PSI-CELL approach. Numerical experiments have been performed assuming a mono-dispersed solid phase with particle diameter ranging from 45 mu m to 1200 mu m. Distance between the louver blades and the resulting effect on the flow profile was analysed as well. Results obtained indicate that the size of coal particles considerably influence the overall solid phase distribution. While fine particles, with diameters at the louver end of the above specified range, almost fully follow the streamlines of the continuous phase, coarser particles, which hit the louver blades, deflect towards the thermal plasma zone. In this manner, a desired phase concentration in the considered zone can be reached For the said reason, installation of stationary louver have been deemed a very efficient way to induce phase separation, primarily due to more pronounced impact of the installed louver on discrete phase flow then the impact on the flow of the continuous phase.
T2  - Thermal Science
T1  - Numerical Simulation of the Influence of Stationary Louver and Coal Particle Size on Distribution of Pulverized Coal to the Feed Ducts of a Power Plant Burner
VL  - 13
IS  - 4
SP  - 79
EP  - 90
DO  - 10.2298/TSCI0904079Z
ER  - 
@article{
author = "Živković, Goran S. and Nemoda, Stevan and Stefanović, Predrag Lj. and Radovanovic, Predrag",
year = "2009",
abstract = "One of the key requirements related to successful utilization of plasma technology as an oil-free backup system for coal ignition and combustion stabilization in power plant boilers is provision of properly regulated pulverized coal distribution to the feed ducts leading the fuel mixture to a burner. Proper regulation of coal distribution is deemed essential for achieving an adequate pulverized coal concentration in the zone where thermal plasma is being introduced The said can be efficiently achieved by installation of stationary louver in the coal-air mixing duct ahead of the feed ducts of a burner. The paper addresses numerical simulation of a two-phase flow of air-pulverized coal mixture in the mixing ducts, analysing the effects of particle size distribution on pulverized coal distribution to the burner feed ducts. Numerical simulation was performed rising the FLUENT 63 commercial code and related poly-dispersed flow module, based on the PSI-CELL approach. Numerical experiments have been performed assuming a mono-dispersed solid phase with particle diameter ranging from 45 mu m to 1200 mu m. Distance between the louver blades and the resulting effect on the flow profile was analysed as well. Results obtained indicate that the size of coal particles considerably influence the overall solid phase distribution. While fine particles, with diameters at the louver end of the above specified range, almost fully follow the streamlines of the continuous phase, coarser particles, which hit the louver blades, deflect towards the thermal plasma zone. In this manner, a desired phase concentration in the considered zone can be reached For the said reason, installation of stationary louver have been deemed a very efficient way to induce phase separation, primarily due to more pronounced impact of the installed louver on discrete phase flow then the impact on the flow of the continuous phase.",
journal = "Thermal Science",
title = "Numerical Simulation of the Influence of Stationary Louver and Coal Particle Size on Distribution of Pulverized Coal to the Feed Ducts of a Power Plant Burner",
volume = "13",
number = "4",
pages = "79-90",
doi = "10.2298/TSCI0904079Z"
}
Živković, G. S., Nemoda, S., Stefanović, P. Lj.,& Radovanovic, P.. (2009). Numerical Simulation of the Influence of Stationary Louver and Coal Particle Size on Distribution of Pulverized Coal to the Feed Ducts of a Power Plant Burner. in Thermal Science, 13(4), 79-90.
https://doi.org/10.2298/TSCI0904079Z
Živković GS, Nemoda S, Stefanović PL, Radovanovic P. Numerical Simulation of the Influence of Stationary Louver and Coal Particle Size on Distribution of Pulverized Coal to the Feed Ducts of a Power Plant Burner. in Thermal Science. 2009;13(4):79-90.
doi:10.2298/TSCI0904079Z .
Živković, Goran S., Nemoda, Stevan, Stefanović, Predrag Lj., Radovanovic, Predrag, "Numerical Simulation of the Influence of Stationary Louver and Coal Particle Size on Distribution of Pulverized Coal to the Feed Ducts of a Power Plant Burner" in Thermal Science, 13, no. 4 (2009):79-90,
https://doi.org/10.2298/TSCI0904079Z . .
2
7
7

A numerical study of pulverized coal ignition by means of plasma torches in air-coal dust mixture ducts of utility boiler furnaces

Belošević, Srđan; Sijercic, Miroslav; Stefanović, Predrag Lj.

(2008)

TY  - JOUR
AU  - Belošević, Srđan
AU  - Sijercic, Miroslav
AU  - Stefanović, Predrag Lj.
PY  - 2008
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3403
AB  - Paper presents selected results of numerical simulation of processes in air-coal dust mixture duct of pulverized coal utility boiler furnace with plasma-system for pulverized coal ignition and combustion stabilization. Application of the system in utility boiler furnaces promises to achieve important savings compared with the use of heavy oil burners. Plasma torches are built in air-coal dust mixture ducts between coal mills and burners. Calculations have been performed for one of rectangular air-coal dust mixture ducts with two opposite plasma torches, used in 210 MWe utility boiler firing pulverized Serbian lignite. The simulations are based on a three-dimensional mathematical model of mass, momentum and heat transfer in reacting turbulent gas-particle flow, specially developed for the purpose. Characteristics of processes in the duct are analyzed in the paper, with respect to the numerical results. The plasma-system thermal effect is discussed as well, regarding corresponding savings of liquid fuel. It has been emphasized that numerical simulation of the processes can be applied in optimization of pulverized coal ignition and combustion stabilization and enables efficient and cost-effective scaling-up procedure from laboratory to industrial scale. (C) 2007 Elsevier Ltd. All rights reserved.
T2  - International Journal of Heat and Mass Transfer
T1  - A numerical study of pulverized coal ignition by means of plasma torches in air-coal dust mixture ducts of utility boiler furnaces
VL  - 51
IS  - 7-8
SP  - 1970
EP  - 1978
DO  - 10.1016/j.ijheatmasstransfer.2007.06.003
ER  - 
@article{
author = "Belošević, Srđan and Sijercic, Miroslav and Stefanović, Predrag Lj.",
year = "2008",
abstract = "Paper presents selected results of numerical simulation of processes in air-coal dust mixture duct of pulverized coal utility boiler furnace with plasma-system for pulverized coal ignition and combustion stabilization. Application of the system in utility boiler furnaces promises to achieve important savings compared with the use of heavy oil burners. Plasma torches are built in air-coal dust mixture ducts between coal mills and burners. Calculations have been performed for one of rectangular air-coal dust mixture ducts with two opposite plasma torches, used in 210 MWe utility boiler firing pulverized Serbian lignite. The simulations are based on a three-dimensional mathematical model of mass, momentum and heat transfer in reacting turbulent gas-particle flow, specially developed for the purpose. Characteristics of processes in the duct are analyzed in the paper, with respect to the numerical results. The plasma-system thermal effect is discussed as well, regarding corresponding savings of liquid fuel. It has been emphasized that numerical simulation of the processes can be applied in optimization of pulverized coal ignition and combustion stabilization and enables efficient and cost-effective scaling-up procedure from laboratory to industrial scale. (C) 2007 Elsevier Ltd. All rights reserved.",
journal = "International Journal of Heat and Mass Transfer",
title = "A numerical study of pulverized coal ignition by means of plasma torches in air-coal dust mixture ducts of utility boiler furnaces",
volume = "51",
number = "7-8",
pages = "1970-1978",
doi = "10.1016/j.ijheatmasstransfer.2007.06.003"
}
Belošević, S., Sijercic, M.,& Stefanović, P. Lj.. (2008). A numerical study of pulverized coal ignition by means of plasma torches in air-coal dust mixture ducts of utility boiler furnaces. in International Journal of Heat and Mass Transfer, 51(7-8), 1970-1978.
https://doi.org/10.1016/j.ijheatmasstransfer.2007.06.003
Belošević S, Sijercic M, Stefanović PL. A numerical study of pulverized coal ignition by means of plasma torches in air-coal dust mixture ducts of utility boiler furnaces. in International Journal of Heat and Mass Transfer. 2008;51(7-8):1970-1978.
doi:10.1016/j.ijheatmasstransfer.2007.06.003 .
Belošević, Srđan, Sijercic, Miroslav, Stefanović, Predrag Lj., "A numerical study of pulverized coal ignition by means of plasma torches in air-coal dust mixture ducts of utility boiler furnaces" in International Journal of Heat and Mass Transfer, 51, no. 7-8 (2008):1970-1978,
https://doi.org/10.1016/j.ijheatmasstransfer.2007.06.003 . .
26
28
35

Turbulent two-phase flow Modeling of air-coal mixture channels with single blade turbulators

Jovanović, Rastko D.; Swiatkowski, Bartosz; Cvetinović, Dejan; Stefanović, Predrag Lj.; Marković, Zoran M.; Pavlović, Zoran

(2007)

TY  - CONF
AU  - Jovanović, Rastko D.
AU  - Swiatkowski, Bartosz
AU  - Cvetinović, Dejan
AU  - Stefanović, Predrag Lj.
AU  - Marković, Zoran M.
AU  - Pavlović, Zoran
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6703
AB  - The subject of this work is turbulent two-phase flow through air-coal channel(s) of complex geometry. The aim of this work is numerical optimization of fluid flow and coal particles distribution. A few proposed variants of the single blade turbulator, which has a role to increase turbulence in vertical section of air-coal mixture channel, were numerically investigated. More uniform coal particle distribution was achieved using single blade turbulators.
C3  - AIP Conference Proceedings
T1  - Turbulent two-phase flow Modeling of air-coal mixture channels with single blade turbulators
VL  - 936
SP  - 300
EP  - +
ER  - 
@conference{
author = "Jovanović, Rastko D. and Swiatkowski, Bartosz and Cvetinović, Dejan and Stefanović, Predrag Lj. and Marković, Zoran M. and Pavlović, Zoran",
year = "2007",
abstract = "The subject of this work is turbulent two-phase flow through air-coal channel(s) of complex geometry. The aim of this work is numerical optimization of fluid flow and coal particles distribution. A few proposed variants of the single blade turbulator, which has a role to increase turbulence in vertical section of air-coal mixture channel, were numerically investigated. More uniform coal particle distribution was achieved using single blade turbulators.",
journal = "AIP Conference Proceedings",
title = "Turbulent two-phase flow Modeling of air-coal mixture channels with single blade turbulators",
volume = "936",
pages = "300-+"
}
Jovanović, R. D., Swiatkowski, B., Cvetinović, D., Stefanović, P. Lj., Marković, Z. M.,& Pavlović, Z.. (2007). Turbulent two-phase flow Modeling of air-coal mixture channels with single blade turbulators. in AIP Conference Proceedings, 936, 300-+.
Jovanović RD, Swiatkowski B, Cvetinović D, Stefanović PL, Marković ZM, Pavlović Z. Turbulent two-phase flow Modeling of air-coal mixture channels with single blade turbulators. in AIP Conference Proceedings. 2007;936:300-+..
Jovanović, Rastko D., Swiatkowski, Bartosz, Cvetinović, Dejan, Stefanović, Predrag Lj., Marković, Zoran M., Pavlović, Zoran, "Turbulent two-phase flow Modeling of air-coal mixture channels with single blade turbulators" in AIP Conference Proceedings, 936 (2007):300-+.
2

Mapping the potential for decentralized energy generation based on RES in Western Balkans

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

(2007)

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  - http://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 . .
24

Thermodynamic consideration of thermal plasma process for zirconium carbide production from zircon concentrates

Kostic, LG; Stefanović, Predrag Lj.; Pavlović, Pavle B.; Pavlović, ZN; Živković, Nikola V.

(2001)

TY  - CONF
AU  - Kostic, LG
AU  - Stefanović, Predrag Lj.
AU  - Pavlović, Pavle B.
AU  - Pavlović, ZN
AU  - Živković, Nikola V.
PY  - 2001
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6322
AB  - Improved zirconium ceramics and composites have been invented in an effort to obtain better resistance to ablation at high temperature. These ceramics are suitable for use as thermal protection materials on the exterior surfaces of spacecraft, and in laboratory and industrial environments that include flows of hot oxidizing gases. Results of thermodynamic consideration of the process for zirconium carbide ultrafine powder production from ZrSiO4 in argon thermal plasma and methane or propane-butane gas as reactive quenching reagents are presented in the paper, Equilibrium composition and total enthalpy values (including heat of formation of species and latent heat of phase transformation) of the Zr_Si_O_C_H_Ar system in temperature interval 1000 K to 6000 K at pressure of 1 bar, enable optimal plasma process routes consideration, and determination of temperature, mass and energy parameters of the process.
C3  - Progress in Plasma Processing of Materials 2001
T1  - Thermodynamic consideration of thermal plasma process for zirconium carbide production from zircon concentrates
SP  - 617
EP  - 622
ER  - 
@conference{
author = "Kostic, LG and Stefanović, Predrag Lj. and Pavlović, Pavle B. and Pavlović, ZN and Živković, Nikola V.",
year = "2001",
abstract = "Improved zirconium ceramics and composites have been invented in an effort to obtain better resistance to ablation at high temperature. These ceramics are suitable for use as thermal protection materials on the exterior surfaces of spacecraft, and in laboratory and industrial environments that include flows of hot oxidizing gases. Results of thermodynamic consideration of the process for zirconium carbide ultrafine powder production from ZrSiO4 in argon thermal plasma and methane or propane-butane gas as reactive quenching reagents are presented in the paper, Equilibrium composition and total enthalpy values (including heat of formation of species and latent heat of phase transformation) of the Zr_Si_O_C_H_Ar system in temperature interval 1000 K to 6000 K at pressure of 1 bar, enable optimal plasma process routes consideration, and determination of temperature, mass and energy parameters of the process.",
journal = "Progress in Plasma Processing of Materials 2001",
title = "Thermodynamic consideration of thermal plasma process for zirconium carbide production from zircon concentrates",
pages = "617-622"
}
Kostic, L., Stefanović, P. Lj., Pavlović, P. B., Pavlović, Z.,& Živković, N. V.. (2001). Thermodynamic consideration of thermal plasma process for zirconium carbide production from zircon concentrates. in Progress in Plasma Processing of Materials 2001, 617-622.
Kostic L, Stefanović PL, Pavlović PB, Pavlović Z, Živković NV. Thermodynamic consideration of thermal plasma process for zirconium carbide production from zircon concentrates. in Progress in Plasma Processing of Materials 2001. 2001;:617-622..
Kostic, LG, Stefanović, Predrag Lj., Pavlović, Pavle B., Pavlović, ZN, Živković, Nikola V., "Thermodynamic consideration of thermal plasma process for zirconium carbide production from zircon concentrates" in Progress in Plasma Processing of Materials 2001 (2001):617-622.

Optimal thermal plasma processes for zirconium carbide powder production from zircon concentrates

Kostic, ZG; Stefanović, Predrag Lj.; Pavlović, Pavle B.; Pavlović, ZN; Živković, Nikola V.

(2001)

TY  - JOUR
AU  - Kostic, ZG
AU  - Stefanović, Predrag Lj.
AU  - Pavlović, Pavle B.
AU  - Pavlović, ZN
AU  - Živković, Nikola V.
PY  - 2001
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/2442
AB  - Available results of equilibrium composition and total enthalpy computation for the systems: Zr-Si-O-Ar and Zr-Si-O-C-H-Ar? presented in the paper, enables thermodynamic optimization of the plasma process for zirconium carbide production from zircon. In the first step of the considered process, zircon decomposition to zirconia and silica is followed by their evaporation in argon thermal plasma. In the second step by introduction of methane or propane-butane gas in the Zr-Si-O-Ar system and reactive quenching, the temperature of such obtained Zr-Si-O-C-H-Ar is lowered to a range in which it is possible to deposit zirconium carbide powder. On presented examples the procedure of determination of optimal mass, energy and temperature process parameters is demonstrated. From presented data, it is possible to calculate and optimize process parameters for any other thermodynamic conditions. (C) 2001 Elsevier Science Ltd and Techna S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Optimal thermal plasma processes for zirconium carbide powder production from zircon concentrates
VL  - 27
IS  - 5
SP  - 547
EP  - 557
DO  - 10.1016/S0272-8842(00)00119-X
ER  - 
@article{
author = "Kostic, ZG and Stefanović, Predrag Lj. and Pavlović, Pavle B. and Pavlović, ZN and Živković, Nikola V.",
year = "2001",
abstract = "Available results of equilibrium composition and total enthalpy computation for the systems: Zr-Si-O-Ar and Zr-Si-O-C-H-Ar? presented in the paper, enables thermodynamic optimization of the plasma process for zirconium carbide production from zircon. In the first step of the considered process, zircon decomposition to zirconia and silica is followed by their evaporation in argon thermal plasma. In the second step by introduction of methane or propane-butane gas in the Zr-Si-O-Ar system and reactive quenching, the temperature of such obtained Zr-Si-O-C-H-Ar is lowered to a range in which it is possible to deposit zirconium carbide powder. On presented examples the procedure of determination of optimal mass, energy and temperature process parameters is demonstrated. From presented data, it is possible to calculate and optimize process parameters for any other thermodynamic conditions. (C) 2001 Elsevier Science Ltd and Techna S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Optimal thermal plasma processes for zirconium carbide powder production from zircon concentrates",
volume = "27",
number = "5",
pages = "547-557",
doi = "10.1016/S0272-8842(00)00119-X"
}
Kostic, Z., Stefanović, P. Lj., Pavlović, P. B., Pavlović, Z.,& Živković, N. V.. (2001). Optimal thermal plasma processes for zirconium carbide powder production from zircon concentrates. in Ceramics International, 27(5), 547-557.
https://doi.org/10.1016/S0272-8842(00)00119-X
Kostic Z, Stefanović PL, Pavlović PB, Pavlović Z, Živković NV. Optimal thermal plasma processes for zirconium carbide powder production from zircon concentrates. in Ceramics International. 2001;27(5):547-557.
doi:10.1016/S0272-8842(00)00119-X .
Kostic, ZG, Stefanović, Predrag Lj., Pavlović, Pavle B., Pavlović, ZN, Živković, Nikola V., "Optimal thermal plasma processes for zirconium carbide powder production from zircon concentrates" in Ceramics International, 27, no. 5 (2001):547-557,
https://doi.org/10.1016/S0272-8842(00)00119-X . .
9
9
9

Comparative analysis of polychlorinated biphenyl decomposition processes in air or argon (plus oxygen) thermal plasma

Kostic, ZG; Stefanović, Predrag Lj.; Pavlović, Pavle B.

(2000)

TY  - JOUR
AU  - Kostic, ZG
AU  - Stefanović, Predrag Lj.
AU  - Pavlović, Pavle B.
PY  - 2000
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/2348
AB  - Thermal plasmas may solve one of the biggest toxic waste disposal problems. The disposal of polychlorinated biphenyls (PCBs) is a long standing problem which will get worse in the coming years, when 180 000 tons of PCB-containing wastes are expected to accumulate in Europe (Hot ions break down toxic chemicals, New Scientist, 16 April 1987, p. 24.). The combustion of PCBs in ordinary incinerators (at temperature T similar to 1100 K, as measured near the inner wall of the combustion chamber (European Parliament and Council Directive on Incineration of Waste (COM/99/330), Europe energy, 543, Sept. 17, 1999, 1-23,)) can cause more problems than it solves, because highly toxic dioxins and dibenzofurans are formed if the combustion temperature is too low (T LT 1400 K). The paper presents a thermodynamic consideration and comparative analysis of PCB decomposition processes in air or argon (+oxygen) thermal plasmas. (C) 2000 Elsevier Science B.V. All rights reserved.
T2  - Journal of Hazardous Materials
T1  - Comparative analysis of polychlorinated biphenyl decomposition processes in air or argon (plus oxygen) thermal plasma
VL  - 75
IS  - 1
SP  - 75
EP  - 88
DO  - 10.1016/S0304-3894(00)00181-3
ER  - 
@article{
author = "Kostic, ZG and Stefanović, Predrag Lj. and Pavlović, Pavle B.",
year = "2000",
abstract = "Thermal plasmas may solve one of the biggest toxic waste disposal problems. The disposal of polychlorinated biphenyls (PCBs) is a long standing problem which will get worse in the coming years, when 180 000 tons of PCB-containing wastes are expected to accumulate in Europe (Hot ions break down toxic chemicals, New Scientist, 16 April 1987, p. 24.). The combustion of PCBs in ordinary incinerators (at temperature T similar to 1100 K, as measured near the inner wall of the combustion chamber (European Parliament and Council Directive on Incineration of Waste (COM/99/330), Europe energy, 543, Sept. 17, 1999, 1-23,)) can cause more problems than it solves, because highly toxic dioxins and dibenzofurans are formed if the combustion temperature is too low (T LT 1400 K). The paper presents a thermodynamic consideration and comparative analysis of PCB decomposition processes in air or argon (+oxygen) thermal plasmas. (C) 2000 Elsevier Science B.V. All rights reserved.",
journal = "Journal of Hazardous Materials",
title = "Comparative analysis of polychlorinated biphenyl decomposition processes in air or argon (plus oxygen) thermal plasma",
volume = "75",
number = "1",
pages = "75-88",
doi = "10.1016/S0304-3894(00)00181-3"
}
Kostic, Z., Stefanović, P. Lj.,& Pavlović, P. B.. (2000). Comparative analysis of polychlorinated biphenyl decomposition processes in air or argon (plus oxygen) thermal plasma. in Journal of Hazardous Materials, 75(1), 75-88.
https://doi.org/10.1016/S0304-3894(00)00181-3
Kostic Z, Stefanović PL, Pavlović PB. Comparative analysis of polychlorinated biphenyl decomposition processes in air or argon (plus oxygen) thermal plasma. in Journal of Hazardous Materials. 2000;75(1):75-88.
doi:10.1016/S0304-3894(00)00181-3 .
Kostic, ZG, Stefanović, Predrag Lj., Pavlović, Pavle B., "Comparative analysis of polychlorinated biphenyl decomposition processes in air or argon (plus oxygen) thermal plasma" in Journal of Hazardous Materials, 75, no. 1 (2000):75-88,
https://doi.org/10.1016/S0304-3894(00)00181-3 . .
6
6
11