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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

TY  - CONF
AU  - Živković, Goran
AU  - Rudonja, Nedžad
AU  - Repić, Branislav
AU  - Dakić, Dragoljub
AU  - Komatina, Mirko
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11611
AB  - Korišćenje akumulatora toplote na postrojenjima koja koriste obnovljive izvore energije (biomasu) predstavlja dobar način da se poveća njihova energetska efikasnost. Glavni razlog ugradnje akumulatora toplote je taj što je opterećenje kotlova na biomasu retko kada konstantno, jer se menja tokom dana i tokom godine, zavisno od uslova korišćenja kotla. U radu su prikazani rezultati razvoja akumulatora toplote kod kojih se materijal za akumulaciju topi na atmosferskom pritisku, omogućavajući na taj način korišćenje energije faznog prelaza za skladištenje energije dobijene sagorevanjem biomase. Akumulatori toplote ovog tipa omogućavaju veću količinu akumulirane toplote po jedinici zapremine, a takođe, u zavisnosti od radnog medijuma, omogućavaju dostizanje viših temperatura radnog medijuma, što je neophodan uslov kod postrojenja sa kogeneracijom. U svrhu eksperimentalnog ispitivanja strujnih i termičkih procesa u akumulatoru toplote konstruisan je i izrađen prototip takvog akumulatora toplote. On je cilindričnog oblika, zapremine 77 dm3. Radni material se greje električnim grejačem snage 2,4 kW, a hladi se vazduhom. Kao radni medijum korišćen je parafin. Merenja su vršena kako u nestacionarnom tako i u stacionarnom režimu rada. Dobijena je obimna baza eksperimentalnih podataka, koji će se koristiti u numeričkom istraživanju, za razvoj modela i verifikovanje njegovih rezultata.
AB  - The use of thermal storage tanks (TST) infacilitiesthat use renewable energy resources (biomass) represents a  good way to  increase their energy efficiency.The main reason for their introduction is the fact that the energy production in biomass boilers is seldom constant, and frequently changes during theday, depending on the conditions of its use. This paper presents the results in the development of TST in which the thermal storage material is melted on atmospheric pressure,enabling on that way the use of the energy of phase change for energy storage. TST of this type enable more thermal energy storage per volume unit, but also (depending of the working medium) enable higher temperatures of the working medium, which is necessary in the co-generated facilities.For the purpose of the experimental research of thermal and flow processes in TST a prototype of TST was designed and made. It has a cylindrical shape, with the working volume of 77 dm3. Theworking material is heated by 2.4 kW electric heater positioned along the TST axes, and is cooled by the air. For the purpose of this workparaffin as a working medium was used.Measurements were performed for non-stationary  as  well  as  for  stationary  working  regimes.  As  a  result,  an  extensive  set  of experimental data was obtained, which will serve in the numerical study, as a basis for the developing a numerical model to verify its results.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku
C3  - 26. Međunarodni kongres o procesnoj industriji - PROCESING ′13 : zbornik radova
T1  - Mogućnosti korišćenja akumulatora toplote sa promenom faze u postrojenjima na biomasu
T1  - Feasibility of using thermal storage tankswith a phase change mediumin biomass facilities
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11611
ER  - 

@conference{
author = "Živković, Goran and Rudonja, Nedžad and Repić, Branislav and Dakić, Dragoljub and Komatina, Mirko",
year = "2013",
abstract = "Korišćenje akumulatora toplote na postrojenjima koja koriste obnovljive izvore energije (biomasu) predstavlja dobar način da se poveća njihova energetska efikasnost. Glavni razlog ugradnje akumulatora toplote je taj što je opterećenje kotlova na biomasu retko kada konstantno, jer se menja tokom dana i tokom godine, zavisno od uslova korišćenja kotla. U radu su prikazani rezultati razvoja akumulatora toplote kod kojih se materijal za akumulaciju topi na atmosferskom pritisku, omogućavajući na taj način korišćenje energije faznog prelaza za skladištenje energije dobijene sagorevanjem biomase. Akumulatori toplote ovog tipa omogućavaju veću količinu akumulirane toplote po jedinici zapremine, a takođe, u zavisnosti od radnog medijuma, omogućavaju dostizanje viših temperatura radnog medijuma, što je neophodan uslov kod postrojenja sa kogeneracijom. U svrhu eksperimentalnog ispitivanja strujnih i termičkih procesa u akumulatoru toplote konstruisan je i izrađen prototip takvog akumulatora toplote. On je cilindričnog oblika, zapremine 77 dm3. Radni material se greje električnim grejačem snage 2,4 kW, a hladi se vazduhom. Kao radni medijum korišćen je parafin. Merenja su vršena kako u nestacionarnom tako i u stacionarnom režimu rada. Dobijena je obimna baza eksperimentalnih podataka, koji će se koristiti u numeričkom istraživanju, za razvoj modela i verifikovanje njegovih rezultata., The use of thermal storage tanks (TST) infacilitiesthat use renewable energy resources (biomass) represents a  good way to  increase their energy efficiency.The main reason for their introduction is the fact that the energy production in biomass boilers is seldom constant, and frequently changes during theday, depending on the conditions of its use. This paper presents the results in the development of TST in which the thermal storage material is melted on atmospheric pressure,enabling on that way the use of the energy of phase change for energy storage. TST of this type enable more thermal energy storage per volume unit, but also (depending of the working medium) enable higher temperatures of the working medium, which is necessary in the co-generated facilities.For the purpose of the experimental research of thermal and flow processes in TST a prototype of TST was designed and made. It has a cylindrical shape, with the working volume of 77 dm3. Theworking material is heated by 2.4 kW electric heater positioned along the TST axes, and is cooled by the air. For the purpose of this workparaffin as a working medium was used.Measurements were performed for non-stationary  as  well  as  for  stationary  working  regimes.  As  a  result,  an  extensive  set  of experimental data was obtained, which will serve in the numerical study, as a basis for the developing a numerical model to verify its results.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku",
journal = "26. Međunarodni kongres o procesnoj industriji - PROCESING ′13 : zbornik radova",
title = "Mogućnosti korišćenja akumulatora toplote sa promenom faze u postrojenjima na biomasu, Feasibility of using thermal storage tankswith a phase change mediumin biomass facilities",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11611"
}

Živković, G., Rudonja, N., Repić, B., Dakić, D.,& Komatina, M.. (2013). Mogućnosti korišćenja akumulatora toplote sa promenom faze u postrojenjima na biomasu. in 26. Međunarodni kongres o procesnoj industriji - PROCESING ′13 : zbornik radova
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku..
https://hdl.handle.net/21.15107/rcub_vinar_11611

Živković G, Rudonja N, Repić B, Dakić D, Komatina M. Mogućnosti korišćenja akumulatora toplote sa promenom faze u postrojenjima na biomasu. in 26. Međunarodni kongres o procesnoj industriji - PROCESING ′13 : zbornik radova. 2013;.
https://hdl.handle.net/21.15107/rcub_vinar_11611 .

Živković, Goran, Rudonja, Nedžad, Repić, Branislav, Dakić, Dragoljub, Komatina, Mirko, "Mogućnosti korišćenja akumulatora toplote sa promenom faze u postrojenjima na biomasu" in 26. Međunarodni kongres o procesnoj industriji - PROCESING ′13 : zbornik radova (2013),
https://hdl.handle.net/21.15107/rcub_vinar_11611 .

TY  - CONF
AU  - Repić, Branislav
AU  - Živković, Goran
AU  - Dakić, Dragoljub
AU  - Đurović, Dejan
AU  - Erić, Aleksandar
AU  - Nemoda, Stevan
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11612
AB  - Ekonomajzeri tj. zagrejači vode predstavljaju kotlovsku grejnu površinu koja se koristi za zagrevanje napojne vode u kotlu. Za intenzifikaciju razmene toplote i smanjenje zaprljanja cevi ekonomajzeri preporučuje se korišćenje orebrenih cevi. U radu su prikazani rezultati strujno-termičkih ispitivanja više ekonomajzera toplotne snage od 0,83 do 1,67 MW. Ekonomajzeri su izrađeni od spiralno orebrenih cevi Ø38x3,2 mm postavljenih u šahovskom rasporedu. Visina rebara iznosi 12,5 mm i kontinualno su zavarene za cevi, a njihova debljina iznosi 1 mm. Osnovni cilj ispitivanja bio je da se eksperimentalno odrede performanse ekonomajzera i utvrdi efikasnost njihovog rada. Kako ispitivani kotlovi nisu radili u nominalnom režimu razvijena je metodologija za preračunavanje dobijenih rezultata ispitivanja na nominalni kapacitet kotla. Pri ispitivanjima mereni su protoci i temperature napojne vode i dimnog gasa kao i pad pritiska sa vodene i gasne strane ekonomajzera. Takođe, meren je i sadržaj O2 u dimnim gasovima u cilju preračunavanja rezultata merenja. Dobijeni rezultati pokazali su dobru saglasnost sa projektnim podacima isporučioca opreme.
AB  - Economizers i.e.    water heaters are the boiler heating surface used for heating boiler feed water. For intensification of heat exchange and reducing contamination in economizers it is recommended to use finned tubes. This paper presents the results of thermo-fluid testing of several economizers  with  heat  power  from  0.83  to  1.67 MW.  Economizers  are  made  ofspirally finned tubes Ø38x3, 2 mm with chess set in the schedule. Fins height is 12.5 mm andthey  are continuously welded to the tube, and their thickness is 1 mm. The main objective ofthis  study  was  to  experimentally  determine  performance  of  the  economizers  and  determine their  effectiveness.  Since  the  tested  boilers were  not  working  in  the  nominal  regime,  a methodology for  converting  the  obtained  results  at  nominal  capacity  of  the  boiler  has  been  developed. During  the tests were measured flow rates and temperature of the feed water andflue  gas  as  well  as  the pressure  drop  both on  the  water  and  gas  side  of  economizer.  In addition, O2 content in the flue gases has been measured in order to recalculate measurement results.  The  results  have  shown good  agreement  with  projected  parameters  guaranteed  by  supplier.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku
C3  - 26. Međunarodni kongres o procesnoj industriji - PROCESING ′13 : zbornik radova
T1  - Eksperimentalno određivanje perfomansi ekonomajzera sa spiralno orebrenim cevima
T1  - Experimental determination of economizer performance with spirally ribbed pipes
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11612
ER  - 

@conference{
author = "Repić, Branislav and Živković, Goran and Dakić, Dragoljub and Đurović, Dejan and Erić, Aleksandar and Nemoda, Stevan",
year = "2013",
abstract = "Ekonomajzeri tj. zagrejači vode predstavljaju kotlovsku grejnu površinu koja se koristi za zagrevanje napojne vode u kotlu. Za intenzifikaciju razmene toplote i smanjenje zaprljanja cevi ekonomajzeri preporučuje se korišćenje orebrenih cevi. U radu su prikazani rezultati strujno-termičkih ispitivanja više ekonomajzera toplotne snage od 0,83 do 1,67 MW. Ekonomajzeri su izrađeni od spiralno orebrenih cevi Ø38x3,2 mm postavljenih u šahovskom rasporedu. Visina rebara iznosi 12,5 mm i kontinualno su zavarene za cevi, a njihova debljina iznosi 1 mm. Osnovni cilj ispitivanja bio je da se eksperimentalno odrede performanse ekonomajzera i utvrdi efikasnost njihovog rada. Kako ispitivani kotlovi nisu radili u nominalnom režimu razvijena je metodologija za preračunavanje dobijenih rezultata ispitivanja na nominalni kapacitet kotla. Pri ispitivanjima mereni su protoci i temperature napojne vode i dimnog gasa kao i pad pritiska sa vodene i gasne strane ekonomajzera. Takođe, meren je i sadržaj O2 u dimnim gasovima u cilju preračunavanja rezultata merenja. Dobijeni rezultati pokazali su dobru saglasnost sa projektnim podacima isporučioca opreme., Economizers i.e.    water heaters are the boiler heating surface used for heating boiler feed water. For intensification of heat exchange and reducing contamination in economizers it is recommended to use finned tubes. This paper presents the results of thermo-fluid testing of several economizers  with  heat  power  from  0.83  to  1.67 MW.  Economizers  are  made  ofspirally finned tubes Ø38x3, 2 mm with chess set in the schedule. Fins height is 12.5 mm andthey  are continuously welded to the tube, and their thickness is 1 mm. The main objective ofthis  study  was  to  experimentally  determine  performance  of  the  economizers  and  determine their  effectiveness.  Since  the  tested  boilers were  not  working  in  the  nominal  regime,  a methodology for  converting  the  obtained  results  at  nominal  capacity  of  the  boiler  has  been  developed. During  the tests were measured flow rates and temperature of the feed water andflue  gas  as  well  as  the pressure  drop  both on  the  water  and  gas  side  of  economizer.  In addition, O2 content in the flue gases has been measured in order to recalculate measurement results.  The  results  have  shown good  agreement  with  projected  parameters  guaranteed  by  supplier.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku",
journal = "26. Međunarodni kongres o procesnoj industriji - PROCESING ′13 : zbornik radova",
title = "Eksperimentalno određivanje perfomansi ekonomajzera sa spiralno orebrenim cevima, Experimental determination of economizer performance with spirally ribbed pipes",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11612"
}

Repić, B., Živković, G., Dakić, D., Đurović, D., Erić, A.,& Nemoda, S.. (2013). Eksperimentalno određivanje perfomansi ekonomajzera sa spiralno orebrenim cevima. in 26. Međunarodni kongres o procesnoj industriji - PROCESING ′13 : zbornik radova
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku..
https://hdl.handle.net/21.15107/rcub_vinar_11612

Repić B, Živković G, Dakić D, Đurović D, Erić A, Nemoda S. Eksperimentalno određivanje perfomansi ekonomajzera sa spiralno orebrenim cevima. in 26. Međunarodni kongres o procesnoj industriji - PROCESING ′13 : zbornik radova. 2013;.
https://hdl.handle.net/21.15107/rcub_vinar_11612 .

Repić, Branislav, Živković, Goran, Dakić, Dragoljub, Đurović, Dejan, Erić, Aleksandar, Nemoda, Stevan, "Eksperimentalno određivanje perfomansi ekonomajzera sa spiralno orebrenim cevima" in 26. Međunarodni kongres o procesnoj industriji - PROCESING ′13 : zbornik radova (2013),
https://hdl.handle.net/21.15107/rcub_vinar_11612 .

TY  - CONF
AU  - Repić, Branislav
AU  - Erić, Aleksandar
AU  - Đurović, Dejan R.
AU  - Marinković, Ana D.
AU  - Živković, Goran S.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7154
AB  - Performed investigation of pulverized fuel combustion in swirl flows has shown that there are two important groups of influential parameters: fuel and burner characteristics. The most important conclusion of these investigations is that each type of fuel needs a defined burner for its combustion and concrete operating parameters for its optimal work. Optimal operating parameters can be determined only by performing the appropriate experiments. Selection of optimal swirl burner design is dependent on energy loss which is used for air transport through burner. Increasing of swirl intensity is convenient for fuel ignition and flame stability, but energy loss for air transport increases, too. Swirl economy is estimated using hydraulic resistance parameter which represents energy loss due to swirling. In the paper are presented the methods and experimental data of hydraulic resistance determination for three laboratory models of swirl burners for pulverized fuel combustion. In the tangential burner the swirling is accomplished by tangential inflow of secondary air and fuel/air mixture. Axial-blade burner of type 1 enables swirling by a set of 18 blades. Axial-blade burner of type 2 is with a central lead of gas and coaxial lead of fuel/air mixture, primary air and recirculating gases. In movable swirl block burner the secondary air swirling is enabled by 8 stationary and 8 movable blocks fixed at movable and stationary plate. (C) 2012 Published by Elsevier Ltd.
C3  - Procedia Engineering
T1  - Experimental determination of the swirl burner laboratory models hydraulic resistance
VL  - 42
SP  - 672
EP  - 682
DO  - 10.1016/j.proeng.2012.07.460
ER  - 

@conference{
author = "Repić, Branislav and Erić, Aleksandar and Đurović, Dejan R. and Marinković, Ana D. and Živković, Goran S.",
year = "2012",
abstract = "Performed investigation of pulverized fuel combustion in swirl flows has shown that there are two important groups of influential parameters: fuel and burner characteristics. The most important conclusion of these investigations is that each type of fuel needs a defined burner for its combustion and concrete operating parameters for its optimal work. Optimal operating parameters can be determined only by performing the appropriate experiments. Selection of optimal swirl burner design is dependent on energy loss which is used for air transport through burner. Increasing of swirl intensity is convenient for fuel ignition and flame stability, but energy loss for air transport increases, too. Swirl economy is estimated using hydraulic resistance parameter which represents energy loss due to swirling. In the paper are presented the methods and experimental data of hydraulic resistance determination for three laboratory models of swirl burners for pulverized fuel combustion. In the tangential burner the swirling is accomplished by tangential inflow of secondary air and fuel/air mixture. Axial-blade burner of type 1 enables swirling by a set of 18 blades. Axial-blade burner of type 2 is with a central lead of gas and coaxial lead of fuel/air mixture, primary air and recirculating gases. In movable swirl block burner the secondary air swirling is enabled by 8 stationary and 8 movable blocks fixed at movable and stationary plate. (C) 2012 Published by Elsevier Ltd.",
journal = "Procedia Engineering",
title = "Experimental determination of the swirl burner laboratory models hydraulic resistance",
volume = "42",
pages = "672-682",
doi = "10.1016/j.proeng.2012.07.460"
}

Repić, B., Erić, A., Đurović, D. R., Marinković, A. D.,& Živković, G. S.. (2012). Experimental determination of the swirl burner laboratory models hydraulic resistance. in Procedia Engineering, 42, 672-682.
https://doi.org/10.1016/j.proeng.2012.07.460

Repić B, Erić A, Đurović DR, Marinković AD, Živković GS. Experimental determination of the swirl burner laboratory models hydraulic resistance. in Procedia Engineering. 2012;42:672-682.
doi:10.1016/j.proeng.2012.07.460 .

Repić, Branislav, Erić, Aleksandar, Đurović, Dejan R., Marinković, Ana D., Živković, Goran S., "Experimental determination of the swirl burner laboratory models hydraulic resistance" in Procedia Engineering, 42 (2012):672-682,
https://doi.org/10.1016/j.proeng.2012.07.460 . .

TY  - JOUR
AU  - Stakić, Milan B.
AU  - Živković, Goran S.
AU  - Sijercic, Miroslav A.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4285
AB  - The paper addresses numerical simulation of turbulent two-phase flow in a long vertical tube and turbulent two-phase free jet formed at the tube outlet, analyzing agreement between the numerical results and the results of corresponding experimental investigation carried out earlier. In the numerical analyses conducted, gas phase was modeled as an air flow (having a mass flow-rate in the range of 1.25-4.00 g/s), while the sand particles of two different sizes (0.25-0.30 and 0.8-1.0 mm) represented a discrete phase (particle to gas mass flow ratio of 0.72-4.08) in the two-phase flow considered. Gas-particle interaction was analyzed based on the gas velocities in the particle-laden two-phase flow and the particle-free gas flow, calculated and measured at various locations along the longitudinal axis and radius of the jet. Mathematical model of continuous phase flow was developed based on the single phase flow models, with certain corrections introduced to account for the effects of particles in the flow. In the simulation model developed, the flow analyzed was modeled as a two-phase mixture, with Eulerian simulation used to account for the gas phase behavior and the Lagrangian simulation modeling the particle movement in the two-phase flow considered. In order to appropriately close the system of time-averaged equations, k-epsilon turbulent model, deemed the most reliable, was used. Phase coupling i.e. fluid-particle interaction was modeled using the PSI-CELL concept. The results obtained via numerical simulation have shown a good agreement with the experimental data acquired. (C) 2011 Elsevier Ltd. All rights reserved.
T2  - International Journal of Heat and Mass Transfer
T1  - Numerical analysis of discrete phase induced effects on a gas flow in a turbulent two-phase free jet
VL  - 54
IS  - 11-12
SP  - 2262
EP  - 2269
DO  - 10.1016/j.ijheatmasstransfer.2011.02.039
ER  - 

@article{
author = "Stakić, Milan B. and Živković, Goran S. and Sijercic, Miroslav A.",
year = "2011",
abstract = "The paper addresses numerical simulation of turbulent two-phase flow in a long vertical tube and turbulent two-phase free jet formed at the tube outlet, analyzing agreement between the numerical results and the results of corresponding experimental investigation carried out earlier. In the numerical analyses conducted, gas phase was modeled as an air flow (having a mass flow-rate in the range of 1.25-4.00 g/s), while the sand particles of two different sizes (0.25-0.30 and 0.8-1.0 mm) represented a discrete phase (particle to gas mass flow ratio of 0.72-4.08) in the two-phase flow considered. Gas-particle interaction was analyzed based on the gas velocities in the particle-laden two-phase flow and the particle-free gas flow, calculated and measured at various locations along the longitudinal axis and radius of the jet. Mathematical model of continuous phase flow was developed based on the single phase flow models, with certain corrections introduced to account for the effects of particles in the flow. In the simulation model developed, the flow analyzed was modeled as a two-phase mixture, with Eulerian simulation used to account for the gas phase behavior and the Lagrangian simulation modeling the particle movement in the two-phase flow considered. In order to appropriately close the system of time-averaged equations, k-epsilon turbulent model, deemed the most reliable, was used. Phase coupling i.e. fluid-particle interaction was modeled using the PSI-CELL concept. The results obtained via numerical simulation have shown a good agreement with the experimental data acquired. (C) 2011 Elsevier Ltd. All rights reserved.",
journal = "International Journal of Heat and Mass Transfer",
title = "Numerical analysis of discrete phase induced effects on a gas flow in a turbulent two-phase free jet",
volume = "54",
number = "11-12",
pages = "2262-2269",
doi = "10.1016/j.ijheatmasstransfer.2011.02.039"
}

Stakić, M. B., Živković, G. S.,& Sijercic, M. A.. (2011). Numerical analysis of discrete phase induced effects on a gas flow in a turbulent two-phase free jet. in International Journal of Heat and Mass Transfer, 54(11-12), 2262-2269.
https://doi.org/10.1016/j.ijheatmasstransfer.2011.02.039

Stakić MB, Živković GS, Sijercic MA. Numerical analysis of discrete phase induced effects on a gas flow in a turbulent two-phase free jet. in International Journal of Heat and Mass Transfer. 2011;54(11-12):2262-2269.
doi:10.1016/j.ijheatmasstransfer.2011.02.039 .

Stakić, Milan B., Živković, Goran S., Sijercic, Miroslav A., "Numerical analysis of discrete phase induced effects on a gas flow in a turbulent two-phase free jet" in International Journal of Heat and Mass Transfer, 54, no. 11-12 (2011):2262-2269,
https://doi.org/10.1016/j.ijheatmasstransfer.2011.02.039 . .

TY  - JOUR
AU  - Bakić, Vukman
AU  - Živković, Goran S.
AU  - Pezo, Milada L.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4403
AB  - This paper deals with the numerical simulation of air flow around the arrays of flat plate collectors and determination of the flow field, which should provide a basis for estimating a convective heat losses, a parameter which influences their working characteristics. Heat losses are the result of the reflection on the glass, conductive losses at the collectors absorber plate, radiation of the absorber plate and convective losses on the glass. Wind velocity in the vicinity of the absorber plate depends on its position in the arrays of collectors. Results obtained in the numerical simulation of flow around collectors were used as boundary conditions in modeling of thermal-hydraulic processes inside the solar collector. A method for coupling thermal-hydraulic processes inside the collector with heat transfer from plate to tube bundle was developed, in order to find out the distribution of the temperature of the absorber plate and the efficiency of the flat plate collectors. Analyses of flow around arrays of collectors are preformed with RNG k-epsilon model. Three values for free-stream velocity were analysed, i.e. 1 m/s, 5 m/s, and 10 m/s, as well as two values for the angle between the ground and the collector (20 degrees and 40 degrees). Heat transfer coefficient was determined from the theory of boundary layer. Heat transfer inside the plate cavity was analyzed assuming constant intensity of radiation.
T2  - Thermal Science
T1  - Numerical Simulation of the Air Flow Around the Arrays of Solar Collectors
VL  - 15
IS  - 2
SP  - 457
EP  - 465
DO  - 10.2298/TSCI110222051B
ER  - 

@article{
author = "Bakić, Vukman and Živković, Goran S. and Pezo, Milada L.",
year = "2011",
abstract = "This paper deals with the numerical simulation of air flow around the arrays of flat plate collectors and determination of the flow field, which should provide a basis for estimating a convective heat losses, a parameter which influences their working characteristics. Heat losses are the result of the reflection on the glass, conductive losses at the collectors absorber plate, radiation of the absorber plate and convective losses on the glass. Wind velocity in the vicinity of the absorber plate depends on its position in the arrays of collectors. Results obtained in the numerical simulation of flow around collectors were used as boundary conditions in modeling of thermal-hydraulic processes inside the solar collector. A method for coupling thermal-hydraulic processes inside the collector with heat transfer from plate to tube bundle was developed, in order to find out the distribution of the temperature of the absorber plate and the efficiency of the flat plate collectors. Analyses of flow around arrays of collectors are preformed with RNG k-epsilon model. Three values for free-stream velocity were analysed, i.e. 1 m/s, 5 m/s, and 10 m/s, as well as two values for the angle between the ground and the collector (20 degrees and 40 degrees). Heat transfer coefficient was determined from the theory of boundary layer. Heat transfer inside the plate cavity was analyzed assuming constant intensity of radiation.",
journal = "Thermal Science",
title = "Numerical Simulation of the Air Flow Around the Arrays of Solar Collectors",
volume = "15",
number = "2",
pages = "457-465",
doi = "10.2298/TSCI110222051B"
}

Bakić, V., Živković, G. S.,& Pezo, M. L.. (2011). Numerical Simulation of the Air Flow Around the Arrays of Solar Collectors. in Thermal Science, 15(2), 457-465.
https://doi.org/10.2298/TSCI110222051B

Bakić V, Živković GS, Pezo ML. Numerical Simulation of the Air Flow Around the Arrays of Solar Collectors. in Thermal Science. 2011;15(2):457-465.
doi:10.2298/TSCI110222051B .

Bakić, Vukman, Živković, Goran S., Pezo, Milada L., "Numerical Simulation of the Air Flow Around the Arrays of Solar Collectors" in Thermal Science, 15, no. 2 (2011):457-465,
https://doi.org/10.2298/TSCI110222051B . .

TY  - JOUR
AU  - Živković, Goran S.
AU  - Nemoda, Stevan
AU  - Stefanović, Predrag Lj.
AU  - Radovanovic, Predrag
PY  - 2009
UR  - https://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 . .

TY  - CONF
AU  - Živković, Nikola V.
AU  - Živković, Goran S.
AU  - Stefanović, Predrag Lj.
AU  - Cvetinović, Dejan
AU  - Spasojević, Vuk D.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12744
AB  - One of the key requirements for implementing plasma system for fire stabilization is to achieve adequate concentration and mass flow of coal particles in the part of the mixture channel where thermo-chemical treatment will take place. The results in the paper present distribution of various coal powder fractions in the mixture channel on thermal power plant ßNikola Tesla"-A1, obtained by numerical simulation. Computation software for numerical simulation is Fortran code developed in Laboratory for Thermal Engineering and Energy. In order to adequately direct coal particles in the mixture channel, the shutter system is positioned in it. It consists of three groups of shutters. Fictitious shutter-obstacle was introduced in computations only, as an alternative solution. The problem was treated as two-dimensional. Input data for numerical computations are velocity profile of gaseous components and concentration profile of coal particles, obtained by the experiments. Distribution of particle fractions was treated uniform. Continual phase (gas) was treated by an Eulerian approach. Disperse phase is modeled by Lagrangian approach. The model takes in consideration coupling of phases by PSICELL method. Turbulence was modeled with standard κ-ε model. The model treats particle as ideal sphere. In order to accurately determine particle movement, all relevant forces are incorporated in the model, forces with continual affect (presence of continual phase and gravity) and forces with the impulse affect (interaction of particles with boundaries-walls and interaction between the particles). The results include velocity profiles and fields of gaseous phase, concentration fields of particles and mass flow distribution of various particle diameters across the channel.
C3  - ECOS 2008 : The 21st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems : Proceedings
T1  - Numerical simulation of coal powder fractions distribution in thermal power plant mixture channel
SP  - 353
EP  - 359
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12744
ER  - 

@conference{
author = "Živković, Nikola V. and Živković, Goran S. and Stefanović, Predrag Lj. and Cvetinović, Dejan and Spasojević, Vuk D.",
year = "2008",
abstract = "One of the key requirements for implementing plasma system for fire stabilization is to achieve adequate concentration and mass flow of coal particles in the part of the mixture channel where thermo-chemical treatment will take place. The results in the paper present distribution of various coal powder fractions in the mixture channel on thermal power plant ßNikola Tesla"-A1, obtained by numerical simulation. Computation software for numerical simulation is Fortran code developed in Laboratory for Thermal Engineering and Energy. In order to adequately direct coal particles in the mixture channel, the shutter system is positioned in it. It consists of three groups of shutters. Fictitious shutter-obstacle was introduced in computations only, as an alternative solution. The problem was treated as two-dimensional. Input data for numerical computations are velocity profile of gaseous components and concentration profile of coal particles, obtained by the experiments. Distribution of particle fractions was treated uniform. Continual phase (gas) was treated by an Eulerian approach. Disperse phase is modeled by Lagrangian approach. The model takes in consideration coupling of phases by PSICELL method. Turbulence was modeled with standard κ-ε model. The model treats particle as ideal sphere. In order to accurately determine particle movement, all relevant forces are incorporated in the model, forces with continual affect (presence of continual phase and gravity) and forces with the impulse affect (interaction of particles with boundaries-walls and interaction between the particles). The results include velocity profiles and fields of gaseous phase, concentration fields of particles and mass flow distribution of various particle diameters across the channel.",
journal = "ECOS 2008 : The 21st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems : Proceedings",
title = "Numerical simulation of coal powder fractions distribution in thermal power plant mixture channel",
pages = "353-359",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12744"
}

Živković, N. V., Živković, G. S., Stefanović, P. Lj., Cvetinović, D.,& Spasojević, V. D.. (2008). Numerical simulation of coal powder fractions distribution in thermal power plant mixture channel. in ECOS 2008 : The 21st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems : Proceedings, 353-359.
https://hdl.handle.net/21.15107/rcub_vinar_12744

Živković NV, Živković GS, Stefanović PL, Cvetinović D, Spasojević VD. Numerical simulation of coal powder fractions distribution in thermal power plant mixture channel. in ECOS 2008 : The 21st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems : Proceedings. 2008;:353-359.
https://hdl.handle.net/21.15107/rcub_vinar_12744 .

Živković, Nikola V., Živković, Goran S., Stefanović, Predrag Lj., Cvetinović, Dejan, Spasojević, Vuk D., "Numerical simulation of coal powder fractions distribution in thermal power plant mixture channel" in ECOS 2008 : The 21st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems : Proceedings (2008):353-359,
https://hdl.handle.net/21.15107/rcub_vinar_12744 .

TY  - CONF
AU  - Živković, Nikola V.
AU  - Živković, Goran
AU  - Stefanović, Predrag
AU  - Cvetinović, Dejan
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12351
C3  - CHISA 2006 : 17th International Congress of Chemical and Process Engineering : Proceedings
T1  - Numerical simulation of coal powder distribution regulation in the mixture channel on thermal power plant 210 MW "nikola tesla"-A
SP  - 70283
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12351
ER  - 

@conference{
author = "Živković, Nikola V. and Živković, Goran and Stefanović, Predrag and Cvetinović, Dejan",
year = "2006",
journal = "CHISA 2006 : 17th International Congress of Chemical and Process Engineering : Proceedings",
title = "Numerical simulation of coal powder distribution regulation in the mixture channel on thermal power plant 210 MW "nikola tesla"-A",
pages = "70283",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12351"
}

Živković, N. V., Živković, G., Stefanović, P.,& Cvetinović, D.. (2006). Numerical simulation of coal powder distribution regulation in the mixture channel on thermal power plant 210 MW "nikola tesla"-A. in CHISA 2006 : 17th International Congress of Chemical and Process Engineering : Proceedings, 70283.
https://hdl.handle.net/21.15107/rcub_vinar_12351

Živković NV, Živković G, Stefanović P, Cvetinović D. Numerical simulation of coal powder distribution regulation in the mixture channel on thermal power plant 210 MW "nikola tesla"-A. in CHISA 2006 : 17th International Congress of Chemical and Process Engineering : Proceedings. 2006;:70283.
https://hdl.handle.net/21.15107/rcub_vinar_12351 .

Živković, Nikola V., Živković, Goran, Stefanović, Predrag, Cvetinović, Dejan, "Numerical simulation of coal powder distribution regulation in the mixture channel on thermal power plant 210 MW "nikola tesla"-A" in CHISA 2006 : 17th International Congress of Chemical and Process Engineering : Proceedings (2006):70283,
https://hdl.handle.net/21.15107/rcub_vinar_12351 .

TY  - JOUR
AU  - Nemoda, Stevan
AU  - Bakić, Vukman
AU  - Oka, Simeon N.
AU  - Živković, Goran S.
AU  - Crnomarković, Nenad Đ.
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2929
AB  - In this paper the results of experimental and numerical investigations of swirl burner were presented. Mathematical model for prediction of velocity, temperature and concentration fields of axisymmetrical confined swirl turbulent flame was developed. Model consists of few mutually coupled segments related to basic processes in turbulent flows with combustion. The original combustion rate model based on the ideal reacting hypothesis within fine structure of turbulence was applied. The comparison of the experimental results with computation showed satisfactorily agreement between the model and the experiment. This analysis also showed the importance of the proposed combustion rate model with simultaneous influence of both chemical kinetics and turbulent effects. (c) 2005 Elsevier Ltd. All rights reserved.
T2  - International Journal of Heat and Mass Transfer
T1  - Experimental and numerical investigation of gaseous fuel combustion in swirl chamber
VL  - 48
IS  - 21-22
SP  - 4623
EP  - 4632
DO  - 10.1016/j.ijheatmasstransfer.2005.04.004
ER  - 

@article{
author = "Nemoda, Stevan and Bakić, Vukman and Oka, Simeon N. and Živković, Goran S. and Crnomarković, Nenad Đ.",
year = "2005",
abstract = "In this paper the results of experimental and numerical investigations of swirl burner were presented. Mathematical model for prediction of velocity, temperature and concentration fields of axisymmetrical confined swirl turbulent flame was developed. Model consists of few mutually coupled segments related to basic processes in turbulent flows with combustion. The original combustion rate model based on the ideal reacting hypothesis within fine structure of turbulence was applied. The comparison of the experimental results with computation showed satisfactorily agreement between the model and the experiment. This analysis also showed the importance of the proposed combustion rate model with simultaneous influence of both chemical kinetics and turbulent effects. (c) 2005 Elsevier Ltd. All rights reserved.",
journal = "International Journal of Heat and Mass Transfer",
title = "Experimental and numerical investigation of gaseous fuel combustion in swirl chamber",
volume = "48",
number = "21-22",
pages = "4623-4632",
doi = "10.1016/j.ijheatmasstransfer.2005.04.004"
}

Nemoda, S., Bakić, V., Oka, S. N., Živković, G. S.,& Crnomarković, N. Đ.. (2005). Experimental and numerical investigation of gaseous fuel combustion in swirl chamber. in International Journal of Heat and Mass Transfer, 48(21-22), 4623-4632.
https://doi.org/10.1016/j.ijheatmasstransfer.2005.04.004

Nemoda S, Bakić V, Oka SN, Živković GS, Crnomarković NĐ. Experimental and numerical investigation of gaseous fuel combustion in swirl chamber. in International Journal of Heat and Mass Transfer. 2005;48(21-22):4623-4632.
doi:10.1016/j.ijheatmasstransfer.2005.04.004 .

Nemoda, Stevan, Bakić, Vukman, Oka, Simeon N., Živković, Goran S., Crnomarković, Nenad Đ., "Experimental and numerical investigation of gaseous fuel combustion in swirl chamber" in International Journal of Heat and Mass Transfer, 48, no. 21-22 (2005):4623-4632,
https://doi.org/10.1016/j.ijheatmasstransfer.2005.04.004 . .

TY  - JOUR
AU  - Stefanović, Predrag
AU  - Cvetinović, Dejan
AU  - Živković, Goran
AU  - Oka, Simeon
AU  - Pavlović, Pavle
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12383
AB  - A numerical 3D Euler-Lagrangian stochastic-deterministic (LSD) model of two-phase flow laden with solid particles was developed. The model includes the relevant physical effects, namely phase interaction, panicle dispersion by turbulence, lift forces, particle-particle collisions, particle-wall collisions, heat and mass transfer between phases, melting and evaporation of particles, vapour diffusion in the gas flow. It was applied to simulate the processes in thermal plasma reactors, designed for the production of the ceramic powders. Paper presents results of extensive numerical simulation provided (a) to determine critical mechanism of interphase heat and mass transfer in plasma flows, (b) to show relative influence of some plasma reactor parameters on solid precursor evaporation efficiency: 1 - inlet plasma temperature, 2 - inlet plasma velocity, 3 - particle initial diameter, 4 - particle injection angle a, and 5 - reactor wall temperature, (c) to analyze the possibilities for high evaporation efficiency of different starting solid precursors (Si, Al, Ti, and B2O3 powder), and (d) to compare different plasma reactor configurations in conjunction with disperse material evaporation efficiency.
T2  - Thermal Science
T1  - Numerical modeling of disperse material evaporation in axisymmetric thermal plasma reactor
VL  - 7
IS  - 1
SP  - 63
EP  - 99
DO  - 10.2298/TSCI0301063S
ER  - 

@article{
author = "Stefanović, Predrag and Cvetinović, Dejan and Živković, Goran and Oka, Simeon and Pavlović, Pavle",
year = "2003",
abstract = "A numerical 3D Euler-Lagrangian stochastic-deterministic (LSD) model of two-phase flow laden with solid particles was developed. The model includes the relevant physical effects, namely phase interaction, panicle dispersion by turbulence, lift forces, particle-particle collisions, particle-wall collisions, heat and mass transfer between phases, melting and evaporation of particles, vapour diffusion in the gas flow. It was applied to simulate the processes in thermal plasma reactors, designed for the production of the ceramic powders. Paper presents results of extensive numerical simulation provided (a) to determine critical mechanism of interphase heat and mass transfer in plasma flows, (b) to show relative influence of some plasma reactor parameters on solid precursor evaporation efficiency: 1 - inlet plasma temperature, 2 - inlet plasma velocity, 3 - particle initial diameter, 4 - particle injection angle a, and 5 - reactor wall temperature, (c) to analyze the possibilities for high evaporation efficiency of different starting solid precursors (Si, Al, Ti, and B2O3 powder), and (d) to compare different plasma reactor configurations in conjunction with disperse material evaporation efficiency.",
journal = "Thermal Science",
title = "Numerical modeling of disperse material evaporation in axisymmetric thermal plasma reactor",
volume = "7",
number = "1",
pages = "63-99",
doi = "10.2298/TSCI0301063S"
}

Stefanović, P., Cvetinović, D., Živković, G., Oka, S.,& Pavlović, P.. (2003). Numerical modeling of disperse material evaporation in axisymmetric thermal plasma reactor. in Thermal Science, 7(1), 63-99.
https://doi.org/10.2298/TSCI0301063S

Stefanović P, Cvetinović D, Živković G, Oka S, Pavlović P. Numerical modeling of disperse material evaporation in axisymmetric thermal plasma reactor. in Thermal Science. 2003;7(1):63-99.
doi:10.2298/TSCI0301063S .

Stefanović, Predrag, Cvetinović, Dejan, Živković, Goran, Oka, Simeon, Pavlović, Pavle, "Numerical modeling of disperse material evaporation in axisymmetric thermal plasma reactor" in Thermal Science, 7, no. 1 (2003):63-99,
https://doi.org/10.2298/TSCI0301063S . .