TY  - JOUR
AU  - Oka, Simeon
AU  - Jovović, Aleksandar
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2850
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Dimitrije Voronjec, Ph. D. A retired full-time professor (July 30, 1936-September 23, 2017) IN MEMORIAM
EP  - XI
IS  - 1
SP  - IX
VL  - 22
UR  - https://hdl.handle.net/21.15107/rcub_machinery_2850
ER  - 

@article{
author = "Oka, Simeon and Jovović, Aleksandar",
year = "2018",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Dimitrije Voronjec, Ph. D. A retired full-time professor (July 30, 1936-September 23, 2017) IN MEMORIAM",
pages = "XI-IX",
number = "1",
volume = "22",
url = "https://hdl.handle.net/21.15107/rcub_machinery_2850"
}

Oka, S.,& Jovović, A.. (2018). Dimitrije Voronjec, Ph. D. A retired full-time professor (July 30, 1936-September 23, 2017) IN MEMORIAM. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 22(1), IX-XI.
https://hdl.handle.net/21.15107/rcub_machinery_2850

Oka S, Jovović A. Dimitrije Voronjec, Ph. D. A retired full-time professor (July 30, 1936-September 23, 2017) IN MEMORIAM. in Thermal Science. 2018;22(1):IX-XI.
https://hdl.handle.net/21.15107/rcub_machinery_2850 .

Oka, Simeon, Jovović, Aleksandar, "Dimitrije Voronjec, Ph. D. A retired full-time professor (July 30, 1936-September 23, 2017) IN MEMORIAM" in Thermal Science, 22, no. 1 (2018):IX-XI,
https://hdl.handle.net/21.15107/rcub_machinery_2850 .

TY  - JOUR
AU  - Manović, Vasilije
AU  - Komatina, Mirko
AU  - Oka, Simeon
PY  - 2008
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/810
AB  - The temperatures of a coal char particle in hot bubbling fluidized bed (FB) were analyzed by a model of combustion. The unsteady model includes phenomena of heat and mass transfer through a porous char particle, as well as heterogeneous reaction at the interior char surface and homogeneous reaction in the pores. The parametric analysis of the model has shown that above 550 degrees C combustion occurs under the regime limited by diffusion. The experimental results of temperature measurements by thermocouple in the particle center during FB combustion at temperatures in the range 590-710 degrees C were compared with the model predictions. Two coals of different rank were used: lignite and brown coal, with particle size in the range 5-10 mm. The comparisons have shown that the model can adequately predict the histories of temperatures in char particles during combustion in FB. In the first order, the model predicts the influence of the particle size, coal rank (via porosity), and oxygen concentration in its surroundings.
PB  - Elsevier Sci Ltd, Oxford
T2  - Fuel
T1  - Modeling the temperature in coal char particle during fluidized bed combustion
EP  - 914
IS  - 6
SP  - 905
VL  - 87
DO  - 10.1016/j.fuel.2007.05.020
ER  - 

@article{
author = "Manović, Vasilije and Komatina, Mirko and Oka, Simeon",
year = "2008",
abstract = "The temperatures of a coal char particle in hot bubbling fluidized bed (FB) were analyzed by a model of combustion. The unsteady model includes phenomena of heat and mass transfer through a porous char particle, as well as heterogeneous reaction at the interior char surface and homogeneous reaction in the pores. The parametric analysis of the model has shown that above 550 degrees C combustion occurs under the regime limited by diffusion. The experimental results of temperature measurements by thermocouple in the particle center during FB combustion at temperatures in the range 590-710 degrees C were compared with the model predictions. Two coals of different rank were used: lignite and brown coal, with particle size in the range 5-10 mm. The comparisons have shown that the model can adequately predict the histories of temperatures in char particles during combustion in FB. In the first order, the model predicts the influence of the particle size, coal rank (via porosity), and oxygen concentration in its surroundings.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Fuel",
title = "Modeling the temperature in coal char particle during fluidized bed combustion",
pages = "914-905",
number = "6",
volume = "87",
doi = "10.1016/j.fuel.2007.05.020"
}

Manović, V., Komatina, M.,& Oka, S.. (2008). Modeling the temperature in coal char particle during fluidized bed combustion. in Fuel
Elsevier Sci Ltd, Oxford., 87(6), 905-914.
https://doi.org/10.1016/j.fuel.2007.05.020

Manović V, Komatina M, Oka S. Modeling the temperature in coal char particle during fluidized bed combustion. in Fuel. 2008;87(6):905-914.
doi:10.1016/j.fuel.2007.05.020 .

Manović, Vasilije, Komatina, Mirko, Oka, Simeon, "Modeling the temperature in coal char particle during fluidized bed combustion" in Fuel, 87, no. 6 (2008):905-914,
https://doi.org/10.1016/j.fuel.2007.05.020 . .

TY  - JOUR
AU  - Belošević, Srđan V.
AU  - Sijerčić, Miroslav
AU  - Oka, Simeon
AU  - Tucaković, Dragan
PY  - 2006
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/614
AB  - This paper presents selected results of numerical simulations of processes in utility boiler pulverized coal tangentially fired dry-bottom furnace. The simulations have been performed by specially developed comprehensive mathematical model. The main features of the model are a three-dimensional geometry, k-epsilon gas turbulence model, Eulerian-Lagrangian approach, particles-to-turbulence interaction, diffusion model of particle dispersion, six-flux method for radiation modeling and pulverized coal combustion model based on the global particle kinetics and experimentally obtained kinetic parameters. Five operation regimes of 210 MW, boiler furnace burning Serbian lignites, with different grinding fineness of coal and coal quality, have been simulated. The model successfully predicts the influence of the parameters on the furnace processes and operation characteristics (like the flue gas temperature and the furnace walls radiation fluxes). The predicted flame temperature and percentage combustibles in bottom ash are in good agreement with the measurements. The developed model can find different applications, both in research and practice.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - International Journal of Heat and Mass Transfer
T1  - Three-dimensional modeling of utility boiler pulverized coal tangentially fired furnace
EP  - 3378
IS  - 19-20
SP  - 3371
VL  - 49
DO  - 10.1016/j.ijheatmasstransfer.2006.03.022
ER  - 

@article{
author = "Belošević, Srđan V. and Sijerčić, Miroslav and Oka, Simeon and Tucaković, Dragan",
year = "2006",
abstract = "This paper presents selected results of numerical simulations of processes in utility boiler pulverized coal tangentially fired dry-bottom furnace. The simulations have been performed by specially developed comprehensive mathematical model. The main features of the model are a three-dimensional geometry, k-epsilon gas turbulence model, Eulerian-Lagrangian approach, particles-to-turbulence interaction, diffusion model of particle dispersion, six-flux method for radiation modeling and pulverized coal combustion model based on the global particle kinetics and experimentally obtained kinetic parameters. Five operation regimes of 210 MW, boiler furnace burning Serbian lignites, with different grinding fineness of coal and coal quality, have been simulated. The model successfully predicts the influence of the parameters on the furnace processes and operation characteristics (like the flue gas temperature and the furnace walls radiation fluxes). The predicted flame temperature and percentage combustibles in bottom ash are in good agreement with the measurements. The developed model can find different applications, both in research and practice.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "International Journal of Heat and Mass Transfer",
title = "Three-dimensional modeling of utility boiler pulverized coal tangentially fired furnace",
pages = "3378-3371",
number = "19-20",
volume = "49",
doi = "10.1016/j.ijheatmasstransfer.2006.03.022"
}

Belošević, S. V., Sijerčić, M., Oka, S.,& Tucaković, D.. (2006). Three-dimensional modeling of utility boiler pulverized coal tangentially fired furnace. in International Journal of Heat and Mass Transfer
Pergamon-Elsevier Science Ltd, Oxford., 49(19-20), 3371-3378.
https://doi.org/10.1016/j.ijheatmasstransfer.2006.03.022

Belošević SV, Sijerčić M, Oka S, Tucaković D. Three-dimensional modeling of utility boiler pulverized coal tangentially fired furnace. in International Journal of Heat and Mass Transfer. 2006;49(19-20):3371-3378.
doi:10.1016/j.ijheatmasstransfer.2006.03.022 .

Belošević, Srđan V., Sijerčić, Miroslav, Oka, Simeon, Tucaković, Dragan, "Three-dimensional modeling of utility boiler pulverized coal tangentially fired furnace" in International Journal of Heat and Mass Transfer, 49, no. 19-20 (2006):3371-3378,
https://doi.org/10.1016/j.ijheatmasstransfer.2006.03.022 . .

TY  - JOUR
AU  - Belošević, Srđan V.
AU  - Oka, Simeon
AU  - Sijerčić, Miroslav
AU  - Brkić, Ljubiša
AU  - Živanović, Titoslav
PY  - 2004
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/460
AB  - U radu su prikazani odabrani rezultati parametarskih proračuna izvedenih na osnovu numeričke simulacije procesa u ložištu za sagorevanje ugljenog praha energetskog kotla TENT-A2 210 MWe, sa odvođenjem šljake u čvrstom stanju i tangencijalnim rasporedom gorionika. Kao radni parametri karakteristični za pogonsko stanje ložišta, odabrani su finoća mlevenja ugljenog praha i kvalitet uglja. U parametarskoj analizi je posmatrano pet režima rada ložišta. Simulacija je izvedena na osnovu 3D matematičkog modela procesa, razvijenog za simulaciju procesa u ložištima industrijskih razmera. Prikazani su rezultati simulacija i analiziran uticaj odabranih parametara na konverziju čestica ugljenog praha usled sagorevanja, temperaturu dimnog gasa i koncentraciju ugljen-dioksida u ložištu, kao i flukseve toplotnog zračenja na ekranskom zidu. Naglašena je potencijalna primena matematičkog modeliranja procesa u ložištima energetskih kotlova za dijagnostiku i predviđanje pogonskih stanja i situacija.
AB  - Paper presents selected results of parametric study performed by means of numerical simulation of processes in TENT-A2 210 MWe utility boiler tangentially-fired dry-bottom furnace. Grinding fineness of coal and coal quality have been selected and analyzed as parameters characterizing the furnace operating condition. Five operation regimes of the furnace have been considered by parametric study. The simulation has been performed on the basis of 3D mathematical model of processes, developed for the purpose of the simulation of processes in industrial scale boiler fun aces. The simulation results are presented, as well as an analysis of the influence of selected operation parameters to the pulverized coal particles conversion due to combustion, to the flue gas temperature and carbon-dioxide concentration in the furnace and to the furnace wall radiation fluxes. Potential applications of the boiler furnace modeling for diagnostics and prediction of operating conditions and situations have been emphasized in the pa per.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd i Društvo termičara Srbije, Beograd
T2  - Termotehnika
T1  - Modeliranje i parametarska analiza rada ložišta energetskog kotla
T1  - Modeling and parametric study of utility boiler furnace operation
EP  - 38
IS  - 1-4
SP  - 23
VL  - 30
UR  - https://hdl.handle.net/21.15107/rcub_machinery_460
ER  - 

@article{
author = "Belošević, Srđan V. and Oka, Simeon and Sijerčić, Miroslav and Brkić, Ljubiša and Živanović, Titoslav",
year = "2004",
abstract = "U radu su prikazani odabrani rezultati parametarskih proračuna izvedenih na osnovu numeričke simulacije procesa u ložištu za sagorevanje ugljenog praha energetskog kotla TENT-A2 210 MWe, sa odvođenjem šljake u čvrstom stanju i tangencijalnim rasporedom gorionika. Kao radni parametri karakteristični za pogonsko stanje ložišta, odabrani su finoća mlevenja ugljenog praha i kvalitet uglja. U parametarskoj analizi je posmatrano pet režima rada ložišta. Simulacija je izvedena na osnovu 3D matematičkog modela procesa, razvijenog za simulaciju procesa u ložištima industrijskih razmera. Prikazani su rezultati simulacija i analiziran uticaj odabranih parametara na konverziju čestica ugljenog praha usled sagorevanja, temperaturu dimnog gasa i koncentraciju ugljen-dioksida u ložištu, kao i flukseve toplotnog zračenja na ekranskom zidu. Naglašena je potencijalna primena matematičkog modeliranja procesa u ložištima energetskih kotlova za dijagnostiku i predviđanje pogonskih stanja i situacija., Paper presents selected results of parametric study performed by means of numerical simulation of processes in TENT-A2 210 MWe utility boiler tangentially-fired dry-bottom furnace. Grinding fineness of coal and coal quality have been selected and analyzed as parameters characterizing the furnace operating condition. Five operation regimes of the furnace have been considered by parametric study. The simulation has been performed on the basis of 3D mathematical model of processes, developed for the purpose of the simulation of processes in industrial scale boiler fun aces. The simulation results are presented, as well as an analysis of the influence of selected operation parameters to the pulverized coal particles conversion due to combustion, to the flue gas temperature and carbon-dioxide concentration in the furnace and to the furnace wall radiation fluxes. Potential applications of the boiler furnace modeling for diagnostics and prediction of operating conditions and situations have been emphasized in the pa per.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd i Društvo termičara Srbije, Beograd",
journal = "Termotehnika",
title = "Modeliranje i parametarska analiza rada ložišta energetskog kotla, Modeling and parametric study of utility boiler furnace operation",
pages = "38-23",
number = "1-4",
volume = "30",
url = "https://hdl.handle.net/21.15107/rcub_machinery_460"
}

Belošević, S. V., Oka, S., Sijerčić, M., Brkić, L.,& Živanović, T.. (2004). Modeliranje i parametarska analiza rada ložišta energetskog kotla. in Termotehnika
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd i Društvo termičara Srbije, Beograd., 30(1-4), 23-38.
https://hdl.handle.net/21.15107/rcub_machinery_460

Belošević SV, Oka S, Sijerčić M, Brkić L, Živanović T. Modeliranje i parametarska analiza rada ložišta energetskog kotla. in Termotehnika. 2004;30(1-4):23-38.
https://hdl.handle.net/21.15107/rcub_machinery_460 .

Belošević, Srđan V., Oka, Simeon, Sijerčić, Miroslav, Brkić, Ljubiša, Živanović, Titoslav, "Modeliranje i parametarska analiza rada ložišta energetskog kotla" in Termotehnika, 30, no. 1-4 (2004):23-38,
https://hdl.handle.net/21.15107/rcub_machinery_460 .

TY  - JOUR
AU  - Belošević, Srđan V.
AU  - Sijerčić, Miroslav
AU  - Oka, Simeon
AU  - Brkić, Ljubiša
AU  - Živanović, Titoslav
PY  - 2004
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/436
AB  - U radu su prikazani rezultati numeričke simulacije odabranih radnih parametara karakterističnih za pogonsko stanje ložišta za sagorevanje ugljenog praha energetskog kotla sa odvođenjem šljake u čvrstom stanju i tangencijalnim rasporedom gorionika. Simulacija je izvedena na osnovu kompleksnog 3D matematičkog modela procesa i odgovarajućeg numeričkog algoritma i kompjuterskog koda, posebno razvijenih za simulaciju procesa u ložištima industrijskih razmera. Za ložište kotla TENT-A2 210 MWe prikazane su temperature dimnih gasova i koncentracije ugljen-dioksida i procenjen je sadržaj nesagorelog u šljaci. Pojedini rezultati modela upoređeni su sa merenjima na kotlu. Istaknut je značaj numeričkih simulacija radnih parametara ložišta energetskih kotlova za dijagnostiku pogonskih stanja i situacija u ložištu i vođenje postrojenja.
AB  - Results of numerical simulation of chosen operation parameters that characterize the operating conditions of pulverized coal utility boiler tangentially fired furnace with solid slag removal are presented in paper. The simulation has been performed on the basis of the complex 3D mathematical model of process and corresponding numerical algorithm and computer code, specially developed for the purpose of the simulation of process in industrial scale boiler furnaces. For the furnaces TENT-A2 210 MWe utility boiler, flue gas temperatures and carbon-dioxide concentrations are present and unburned matter content in bottom slag has been evaluated. Some results of the model have been compared with the available measurement. The importance of numerical simulations of utility boiler furnace operation parameters has been emphasized, for the purpose of diagnostic of operating conditions and situations in the furnace and for the plant control.
PB  - Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Beograd
T2  - Procesna tehnika
T1  - Simulacija pogonskog stanja ložišta energetskog kotla na ugljeni prah
T1  - Simulation of the pulverized coal utility boiler furnace operating conditions
EP  - 195
IS  - 2-3
SP  - 191
VL  - 20
UR  - https://hdl.handle.net/21.15107/rcub_machinery_436
ER  - 

@article{
author = "Belošević, Srđan V. and Sijerčić, Miroslav and Oka, Simeon and Brkić, Ljubiša and Živanović, Titoslav",
year = "2004",
abstract = "U radu su prikazani rezultati numeričke simulacije odabranih radnih parametara karakterističnih za pogonsko stanje ložišta za sagorevanje ugljenog praha energetskog kotla sa odvođenjem šljake u čvrstom stanju i tangencijalnim rasporedom gorionika. Simulacija je izvedena na osnovu kompleksnog 3D matematičkog modela procesa i odgovarajućeg numeričkog algoritma i kompjuterskog koda, posebno razvijenih za simulaciju procesa u ložištima industrijskih razmera. Za ložište kotla TENT-A2 210 MWe prikazane su temperature dimnih gasova i koncentracije ugljen-dioksida i procenjen je sadržaj nesagorelog u šljaci. Pojedini rezultati modela upoređeni su sa merenjima na kotlu. Istaknut je značaj numeričkih simulacija radnih parametara ložišta energetskih kotlova za dijagnostiku pogonskih stanja i situacija u ložištu i vođenje postrojenja., Results of numerical simulation of chosen operation parameters that characterize the operating conditions of pulverized coal utility boiler tangentially fired furnace with solid slag removal are presented in paper. The simulation has been performed on the basis of the complex 3D mathematical model of process and corresponding numerical algorithm and computer code, specially developed for the purpose of the simulation of process in industrial scale boiler furnaces. For the furnaces TENT-A2 210 MWe utility boiler, flue gas temperatures and carbon-dioxide concentrations are present and unburned matter content in bottom slag has been evaluated. Some results of the model have been compared with the available measurement. The importance of numerical simulations of utility boiler furnace operation parameters has been emphasized, for the purpose of diagnostic of operating conditions and situations in the furnace and for the plant control.",
publisher = "Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Beograd",
journal = "Procesna tehnika",
title = "Simulacija pogonskog stanja ložišta energetskog kotla na ugljeni prah, Simulation of the pulverized coal utility boiler furnace operating conditions",
pages = "195-191",
number = "2-3",
volume = "20",
url = "https://hdl.handle.net/21.15107/rcub_machinery_436"
}

Belošević, S. V., Sijerčić, M., Oka, S., Brkić, L.,& Živanović, T.. (2004). Simulacija pogonskog stanja ložišta energetskog kotla na ugljeni prah. in Procesna tehnika
Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Beograd., 20(2-3), 191-195.
https://hdl.handle.net/21.15107/rcub_machinery_436

Belošević SV, Sijerčić M, Oka S, Brkić L, Živanović T. Simulacija pogonskog stanja ložišta energetskog kotla na ugljeni prah. in Procesna tehnika. 2004;20(2-3):191-195.
https://hdl.handle.net/21.15107/rcub_machinery_436 .

Belošević, Srđan V., Sijerčić, Miroslav, Oka, Simeon, Brkić, Ljubiša, Živanović, Titoslav, "Simulacija pogonskog stanja ložišta energetskog kotla na ugljeni prah" in Procesna tehnika, 20, no. 2-3 (2004):191-195,
https://hdl.handle.net/21.15107/rcub_machinery_436 .

TY  - JOUR
AU  - Belošević, Srđan V.
AU  - Oka, Simeon
AU  - Brkić, Ljubiša
AU  - Živanović, Titoslav
AU  - Sijerčić, Miroslav
PY  - 2003
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/342
AB  - U cilju analize uticaja granulacije ugljenog praha i kvaliteta uglja na procese u ložištu kotla, primenjuju se sopstveni matematički model sagorevanja i drugih procesa i odgovarajući kompjuterski kod. U poređenju sa komercijalnim kodovima, pogodniji je u pogledu detaljnog definisanja konkretnih uslova strujanja u našim ložištima kao i unošenja parametara vezanih za domaća goriva. Za ložište parnog kotla TENT-A2 210 MWe, izvedeni su parametarski proračuni i prikazani rezultati numeričkih simulacija Analiziraju se trajektorije čestica, a za različite frakcije jednog uglja i iste frakcije različitih ugljeva, prati se promena prečnika čestice ugljenog praha usled sagorevanja. Za tri uglja, ispituje se promena temperature položaja plamena u kotlu i koncentracije produkata. Naglašava se primena simulacije u vođenju procesa i projektovanju ekspertskih sistema.
AB  - For the purpose of analysis of pulverized coal granulation and coal quality influence on the processes of boiler furnace, originally developed mathematical model of combustion and other processes and corresponding computer code are used. Compared to the commercial ones, these are more appropriate with respect to the furnace flow conditions, as well as the introduction of domestic fuels parameters. For TENT-A2 210 MW, the boiler furnace parametric calculations have been performed and results of numerical simulations are given. Particle trajectories are analyzed and for different fractions of one coal and for equal fractions of different coals, the coal-dust particles diameters change due to combustion is given. For three coals the change of temperature, flame postion in the boiler and concentrations of products are investigated. The applications of numerical simulation for control of processes and expert systems design are emphasized.
PB  - Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Beograd
T2  - Procesna tehnika
T1  - Uticaj granulacije ugljenog praha i kvaliteta uglja, prema modelu ložišnih procesa u kotlu
T1  - Influence of pulverized coal granulation and coal quality according to the model of furnace processes in steam boiler
EP  - 216
IS  - 1
SP  - 213
VL  - 19
UR  - https://hdl.handle.net/21.15107/rcub_machinery_342
ER  - 

@article{
author = "Belošević, Srđan V. and Oka, Simeon and Brkić, Ljubiša and Živanović, Titoslav and Sijerčić, Miroslav",
year = "2003",
abstract = "U cilju analize uticaja granulacije ugljenog praha i kvaliteta uglja na procese u ložištu kotla, primenjuju se sopstveni matematički model sagorevanja i drugih procesa i odgovarajući kompjuterski kod. U poređenju sa komercijalnim kodovima, pogodniji je u pogledu detaljnog definisanja konkretnih uslova strujanja u našim ložištima kao i unošenja parametara vezanih za domaća goriva. Za ložište parnog kotla TENT-A2 210 MWe, izvedeni su parametarski proračuni i prikazani rezultati numeričkih simulacija Analiziraju se trajektorije čestica, a za različite frakcije jednog uglja i iste frakcije različitih ugljeva, prati se promena prečnika čestice ugljenog praha usled sagorevanja. Za tri uglja, ispituje se promena temperature položaja plamena u kotlu i koncentracije produkata. Naglašava se primena simulacije u vođenju procesa i projektovanju ekspertskih sistema., For the purpose of analysis of pulverized coal granulation and coal quality influence on the processes of boiler furnace, originally developed mathematical model of combustion and other processes and corresponding computer code are used. Compared to the commercial ones, these are more appropriate with respect to the furnace flow conditions, as well as the introduction of domestic fuels parameters. For TENT-A2 210 MW, the boiler furnace parametric calculations have been performed and results of numerical simulations are given. Particle trajectories are analyzed and for different fractions of one coal and for equal fractions of different coals, the coal-dust particles diameters change due to combustion is given. For three coals the change of temperature, flame postion in the boiler and concentrations of products are investigated. The applications of numerical simulation for control of processes and expert systems design are emphasized.",
publisher = "Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Beograd",
journal = "Procesna tehnika",
title = "Uticaj granulacije ugljenog praha i kvaliteta uglja, prema modelu ložišnih procesa u kotlu, Influence of pulverized coal granulation and coal quality according to the model of furnace processes in steam boiler",
pages = "216-213",
number = "1",
volume = "19",
url = "https://hdl.handle.net/21.15107/rcub_machinery_342"
}

Belošević, S. V., Oka, S., Brkić, L., Živanović, T.,& Sijerčić, M.. (2003). Uticaj granulacije ugljenog praha i kvaliteta uglja, prema modelu ložišnih procesa u kotlu. in Procesna tehnika
Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Beograd., 19(1), 213-216.
https://hdl.handle.net/21.15107/rcub_machinery_342

Belošević SV, Oka S, Brkić L, Živanović T, Sijerčić M. Uticaj granulacije ugljenog praha i kvaliteta uglja, prema modelu ložišnih procesa u kotlu. in Procesna tehnika. 2003;19(1):213-216.
https://hdl.handle.net/21.15107/rcub_machinery_342 .

Belošević, Srđan V., Oka, Simeon, Brkić, Ljubiša, Živanović, Titoslav, Sijerčić, Miroslav, "Uticaj granulacije ugljenog praha i kvaliteta uglja, prema modelu ložišnih procesa u kotlu" in Procesna tehnika, 19, no. 1 (2003):213-216,
https://hdl.handle.net/21.15107/rcub_machinery_342 .

TY  - JOUR
AU  - Belošević, Srđan V.
AU  - Oka, Simeon
AU  - Brkić, Ljubiša
AU  - Živanović, Titoslav
AU  - Sijerčić, Miroslav
AU  - Stevanović, Žarko M.
PY  - 2002
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/323
AB  - Numerička simulacija omogućava detaljnu analizu velikog broja parametara i režima rada postrojenja procesne tehnike i energetike i optimizaciju sa aspekata ekonomičnosti, efikasnosti, ekologije i fleksibilnosti, uz znatno nižu cenu u odnosu na merenja. Sopstveni razvijeni 3D model i odgovarajući kompjuterski kod, za razliku od komercijalnih, pogodniji je u pogledu definisanja konkretne geometrije i uslova strujanja u našim ložištima, kao i unošenja parametara vezanih za domaća goriva. U radu je opisan matematički model i navedene su pretpostavke na kojima se zasniva. Rezultati simulacije strujnog i temperaturnog polja prikazani su za ložište parnog kotla TENT-A2 210 MWe. Analizirani su efekti isključivanja gorionika, odnosno mlinova za ugalj i sugerisana je primena modeliranja i numeričke simulacije u definisanju optimalnog režima rada ložišta.
AB  - Numerical simulation enables a detailed analysis of a great number of parameters and working regimes of process engineering facilities and power plants, and it provides optimization considering economy, efficiency, ecology and flexibility, at considerably lower costs, compared with measurements. Developed 3D model and computer code, in contrast to the commercial ones, are more appropriate with respect to the furnace geometry and flow conditions, as well as introduction of domestic fuel parameters. The mathematical model is described and the assumptions are given in the paper. Results of flow and temperature field simulations are presented for TENT-A2 210 MWe boiler furnace. The effects of switching off the burners, i.e. coal mills, are analyzed and application of modeling and simulation in determination of the furnace optimal operation regime is suggested.
PB  - Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Beograd
T2  - Procesna tehnika
T1  - Modeliranje i simulacija procesa u ložištu kotla na ugljeni prah, primenom sopstvenog 3D kompjuterskog koda
T1  - Modeling and simulation of processes in pulverized coal boiler furnace, using the originally developed 3D computer code
EP  - 210
IS  - 1
SP  - 207
VL  - 18
UR  - https://hdl.handle.net/21.15107/rcub_machinery_323
ER  - 

@article{
author = "Belošević, Srđan V. and Oka, Simeon and Brkić, Ljubiša and Živanović, Titoslav and Sijerčić, Miroslav and Stevanović, Žarko M.",
year = "2002",
abstract = "Numerička simulacija omogućava detaljnu analizu velikog broja parametara i režima rada postrojenja procesne tehnike i energetike i optimizaciju sa aspekata ekonomičnosti, efikasnosti, ekologije i fleksibilnosti, uz znatno nižu cenu u odnosu na merenja. Sopstveni razvijeni 3D model i odgovarajući kompjuterski kod, za razliku od komercijalnih, pogodniji je u pogledu definisanja konkretne geometrije i uslova strujanja u našim ložištima, kao i unošenja parametara vezanih za domaća goriva. U radu je opisan matematički model i navedene su pretpostavke na kojima se zasniva. Rezultati simulacije strujnog i temperaturnog polja prikazani su za ložište parnog kotla TENT-A2 210 MWe. Analizirani su efekti isključivanja gorionika, odnosno mlinova za ugalj i sugerisana je primena modeliranja i numeričke simulacije u definisanju optimalnog režima rada ložišta., Numerical simulation enables a detailed analysis of a great number of parameters and working regimes of process engineering facilities and power plants, and it provides optimization considering economy, efficiency, ecology and flexibility, at considerably lower costs, compared with measurements. Developed 3D model and computer code, in contrast to the commercial ones, are more appropriate with respect to the furnace geometry and flow conditions, as well as introduction of domestic fuel parameters. The mathematical model is described and the assumptions are given in the paper. Results of flow and temperature field simulations are presented for TENT-A2 210 MWe boiler furnace. The effects of switching off the burners, i.e. coal mills, are analyzed and application of modeling and simulation in determination of the furnace optimal operation regime is suggested.",
publisher = "Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Beograd",
journal = "Procesna tehnika",
title = "Modeliranje i simulacija procesa u ložištu kotla na ugljeni prah, primenom sopstvenog 3D kompjuterskog koda, Modeling and simulation of processes in pulverized coal boiler furnace, using the originally developed 3D computer code",
pages = "210-207",
number = "1",
volume = "18",
url = "https://hdl.handle.net/21.15107/rcub_machinery_323"
}

Belošević, S. V., Oka, S., Brkić, L., Živanović, T., Sijerčić, M.,& Stevanović, Ž. M.. (2002). Modeliranje i simulacija procesa u ložištu kotla na ugljeni prah, primenom sopstvenog 3D kompjuterskog koda. in Procesna tehnika
Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Beograd., 18(1), 207-210.
https://hdl.handle.net/21.15107/rcub_machinery_323

Belošević SV, Oka S, Brkić L, Živanović T, Sijerčić M, Stevanović ŽM. Modeliranje i simulacija procesa u ložištu kotla na ugljeni prah, primenom sopstvenog 3D kompjuterskog koda. in Procesna tehnika. 2002;18(1):207-210.
https://hdl.handle.net/21.15107/rcub_machinery_323 .

Belošević, Srđan V., Oka, Simeon, Brkić, Ljubiša, Živanović, Titoslav, Sijerčić, Miroslav, Stevanović, Žarko M., "Modeliranje i simulacija procesa u ložištu kotla na ugljeni prah, primenom sopstvenog 3D kompjuterskog koda" in Procesna tehnika, 18, no. 1 (2002):207-210,
https://hdl.handle.net/21.15107/rcub_machinery_323 .