Pollution Reduction from Thermal Power Plants of the Public Enterprise “Electric Power Industry of Serbia”

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Pollution Reduction from Thermal Power Plants of the Public Enterprise “Electric Power Industry of Serbia” (en)
Смањење аерозагађења из термоелектрана у ЈП Електропривреда Србије (sr)
Smanjenje aerozagađenja iz termoelektrana u JP Elektroprivreda Srbije (sr_RS)
Authors

Publications

Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors

Janković, Bojan Ž.; Smičiklas, Ivana D.; Manić, Nebojša G.; Mraković, Ana Đ.; Mandić, Milica; Veljović, Đorđe N.; Jović, Mihajlo D.

(2020)

TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Smičiklas, Ivana D.
AU  - Manić, Nebojša G.
AU  - Mraković, Ana Đ.
AU  - Mandić, Milica
AU  - Veljović, Đorđe N.
AU  - Jović, Mihajlo D.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8836
AB  - Thermo-oxidative degradation of mollusk shells to CaO through intermediate phase of CaCO3 has been investigated using various analytical techniques. Powders of shells species (Dosinia exoleta and Ostrea edulis), with particle size fractions of 0.045 – 0.125 mm, 0.125–0.2 mm, and 0.2–1 mm, were subjected to degradation at the various heating rates (5, 10, 15 and 20 °C min−1). Degradation pathway of this carbonate-rich waste material has not yet been analyzed in detail at particulate level. Understanding transformation process in air should lead to control over yield and morphology of final product. Thermogravimetric analysis (TGA) and X-ray diffraction (XRD) techniques were used to benchmark transformation steps at different heating rates and final decarbonation temperatures, while scanning electron microscope (SEM) was used to analyze the effect of temperature on evolution of morphological changes for particles of different fractions. It was found that sintering in the presence of carbon dioxide (CO2) could be triggered by agglomeration of CaO crystals, enhanced by CO2 adsorption that increases surface energy. © 2020 Elsevier B.V.
T2  - Thermochimica Acta
T1  - Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors
VL  - 686
SP  - 178568
DO  - 10.1016/j.tca.2020.178568
ER  - 
@article{
author = "Janković, Bojan Ž. and Smičiklas, Ivana D. and Manić, Nebojša G. and Mraković, Ana Đ. and Mandić, Milica and Veljović, Đorđe N. and Jović, Mihajlo D.",
year = "2020",
abstract = "Thermo-oxidative degradation of mollusk shells to CaO through intermediate phase of CaCO3 has been investigated using various analytical techniques. Powders of shells species (Dosinia exoleta and Ostrea edulis), with particle size fractions of 0.045 – 0.125 mm, 0.125–0.2 mm, and 0.2–1 mm, were subjected to degradation at the various heating rates (5, 10, 15 and 20 °C min−1). Degradation pathway of this carbonate-rich waste material has not yet been analyzed in detail at particulate level. Understanding transformation process in air should lead to control over yield and morphology of final product. Thermogravimetric analysis (TGA) and X-ray diffraction (XRD) techniques were used to benchmark transformation steps at different heating rates and final decarbonation temperatures, while scanning electron microscope (SEM) was used to analyze the effect of temperature on evolution of morphological changes for particles of different fractions. It was found that sintering in the presence of carbon dioxide (CO2) could be triggered by agglomeration of CaO crystals, enhanced by CO2 adsorption that increases surface energy. © 2020 Elsevier B.V.",
journal = "Thermochimica Acta",
title = "Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors",
volume = "686",
pages = "178568",
doi = "10.1016/j.tca.2020.178568"
}
Janković, B. Ž., Smičiklas, I. D., Manić, N. G., Mraković, A. Đ., Mandić, M., Veljović, Đ. N.,& Jović, M. D.. (2020). Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors. in Thermochimica Acta, 686, 178568.
https://doi.org/10.1016/j.tca.2020.178568
Janković BŽ, Smičiklas ID, Manić NG, Mraković AĐ, Mandić M, Veljović ĐN, Jović MD. Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors. in Thermochimica Acta. 2020;686:178568.
doi:10.1016/j.tca.2020.178568 .
Janković, Bojan Ž., Smičiklas, Ivana D., Manić, Nebojša G., Mraković, Ana Đ., Mandić, Milica, Veljović, Đorđe N., Jović, Mihajlo D., "Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors" in Thermochimica Acta, 686 (2020):178568,
https://doi.org/10.1016/j.tca.2020.178568 . .
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The assessment of spontaneous ignition potential of coals using TGA–DTG technique

Janković, Bojan Ž.; Manić, Nebojša G.; Stojiljković, Dragoslava; Jovanović, Vladimir V.

(2020)

TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Manić, Nebojša G.
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir V.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8518
AB  - During the utilization of coal in large power plants, one of the major logistical issues is related to spontaneous ignition of the coal. This characteristic of coal depends on the rank and type of the coal, the content of the moisture and volatile matter as well as particle size distribution. This paper presents the novel approach for determination of spontaneous ignition potential of the coal developed as the internal laboratory experimental method. The experimental tests were performed by thermogravimetric analysis (TGA) and derivative thermogravimetry (DTG) of tested samples at five different heating rates: 3, 5, 7, 10 and 20 K min−1 under an air atmosphere. The TGA results were used for determination of tangent slope of the mass loss rate curves in the zone of the release of volatiles at considered heating rates for all coal samples. The linear interpolation of the data obtained by performed tangent slope analysis and heating rates provides the straight line unique for each tested sample. According to the standard method, the slope of the obtained straight line is defined as thermogravimetric index of spontaneous ignition (TGspi). In addition, a new formula for determination of TGspi index was provided. Three different coal samples were analyzed and classified according to the spontaneous ignition potential, based on the obtained values for TGspi by standard procedure and also using a newly proposed method. By varying the gradient of linear dependence of self-heating coefficient against reference temperatures (Tref,i), the mass and heat transfer limitations for different coals were discussed. © 2019 The Combustion Institute
T2  - Combustion and Flame
T1  - The assessment of spontaneous ignition potential of coals using TGA–DTG technique
VL  - 211
SP  - 32
EP  - 43
DO  - 10.1016/j.combustflame.2019.09.020
ER  - 
@article{
author = "Janković, Bojan Ž. and Manić, Nebojša G. and Stojiljković, Dragoslava and Jovanović, Vladimir V.",
year = "2020",
abstract = "During the utilization of coal in large power plants, one of the major logistical issues is related to spontaneous ignition of the coal. This characteristic of coal depends on the rank and type of the coal, the content of the moisture and volatile matter as well as particle size distribution. This paper presents the novel approach for determination of spontaneous ignition potential of the coal developed as the internal laboratory experimental method. The experimental tests were performed by thermogravimetric analysis (TGA) and derivative thermogravimetry (DTG) of tested samples at five different heating rates: 3, 5, 7, 10 and 20 K min−1 under an air atmosphere. The TGA results were used for determination of tangent slope of the mass loss rate curves in the zone of the release of volatiles at considered heating rates for all coal samples. The linear interpolation of the data obtained by performed tangent slope analysis and heating rates provides the straight line unique for each tested sample. According to the standard method, the slope of the obtained straight line is defined as thermogravimetric index of spontaneous ignition (TGspi). In addition, a new formula for determination of TGspi index was provided. Three different coal samples were analyzed and classified according to the spontaneous ignition potential, based on the obtained values for TGspi by standard procedure and also using a newly proposed method. By varying the gradient of linear dependence of self-heating coefficient against reference temperatures (Tref,i), the mass and heat transfer limitations for different coals were discussed. © 2019 The Combustion Institute",
journal = "Combustion and Flame",
title = "The assessment of spontaneous ignition potential of coals using TGA–DTG technique",
volume = "211",
pages = "32-43",
doi = "10.1016/j.combustflame.2019.09.020"
}
Janković, B. Ž., Manić, N. G., Stojiljković, D.,& Jovanović, V. V.. (2020). The assessment of spontaneous ignition potential of coals using TGA–DTG technique. in Combustion and Flame, 211, 32-43.
https://doi.org/10.1016/j.combustflame.2019.09.020
Janković BŽ, Manić NG, Stojiljković D, Jovanović VV. The assessment of spontaneous ignition potential of coals using TGA–DTG technique. in Combustion and Flame. 2020;211:32-43.
doi:10.1016/j.combustflame.2019.09.020 .
Janković, Bojan Ž., Manić, Nebojša G., Stojiljković, Dragoslava, Jovanović, Vladimir V., "The assessment of spontaneous ignition potential of coals using TGA–DTG technique" in Combustion and Flame, 211 (2020):32-43,
https://doi.org/10.1016/j.combustflame.2019.09.020 . .
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Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues

Pijović, Milena; Janković, Bojan Ž.; Stojiljković, Dragoslava; Radojević, Miloš B.; Manić, Nebojša G.

(2020)

TY  - CHAP
AU  - Pijović, Milena
AU  - Janković, Bojan Ž.
AU  - Stojiljković, Dragoslava
AU  - Radojević, Miloš B.
AU  - Manić, Nebojša G.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8524
AB  - Thermo-analytical characterization of selected biomasses (agricultural waste and wood biomass feedstock) through the pyrolysis process was performed under dynamic conditions. Slow pyrolysis (carbonization) regime (with a heating rate below 50 °C min−1) was selected because it favours the residual solid (bio-carbon/bio-char) in the higher yields (change in the surface area of bio-char with pyrolysis conditions was dependent on the type of biomass feedstock). Comparison of results and discussions related to obtained percentage pyro char yields from thermo-chemical conversion of biomass feedstocks were generated from simultaneous thermal analysis (STA) (TGA-DTG-DTA apparatus). The analysis of gaseous products of pyrolysis was carried out using mass spectrometry (MS) technique. Releasing of the light gaseous compounds (mainly CO, CO2, CH4, and H2 non-condensable gases) was monitored simultaneously with TGA measurements. Discussion related to this issue was performed from the aspect of the syngas production, as well as the versatility of selected biomasses in the gasification process where the various gasifying agent may be in use. © Springer Nature Switzerland AG 2020.
T2  - Lecture Notes in Networks and Systems
T1  - Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues
VL  - 90
SP  - 139
EP  - 165
DO  - 10.1007/978-3-030-30853-7_9
ER  - 
@inbook{
author = "Pijović, Milena and Janković, Bojan Ž. and Stojiljković, Dragoslava and Radojević, Miloš B. and Manić, Nebojša G.",
year = "2020",
abstract = "Thermo-analytical characterization of selected biomasses (agricultural waste and wood biomass feedstock) through the pyrolysis process was performed under dynamic conditions. Slow pyrolysis (carbonization) regime (with a heating rate below 50 °C min−1) was selected because it favours the residual solid (bio-carbon/bio-char) in the higher yields (change in the surface area of bio-char with pyrolysis conditions was dependent on the type of biomass feedstock). Comparison of results and discussions related to obtained percentage pyro char yields from thermo-chemical conversion of biomass feedstocks were generated from simultaneous thermal analysis (STA) (TGA-DTG-DTA apparatus). The analysis of gaseous products of pyrolysis was carried out using mass spectrometry (MS) technique. Releasing of the light gaseous compounds (mainly CO, CO2, CH4, and H2 non-condensable gases) was monitored simultaneously with TGA measurements. Discussion related to this issue was performed from the aspect of the syngas production, as well as the versatility of selected biomasses in the gasification process where the various gasifying agent may be in use. © Springer Nature Switzerland AG 2020.",
journal = "Lecture Notes in Networks and Systems",
booktitle = "Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues",
volume = "90",
pages = "139-165",
doi = "10.1007/978-3-030-30853-7_9"
}
Pijović, M., Janković, B. Ž., Stojiljković, D., Radojević, M. B.,& Manić, N. G.. (2020). Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues. in Lecture Notes in Networks and Systems, 90, 139-165.
https://doi.org/10.1007/978-3-030-30853-7_9
Pijović M, Janković BŽ, Stojiljković D, Radojević MB, Manić NG. Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues. in Lecture Notes in Networks and Systems. 2020;90:139-165.
doi:10.1007/978-3-030-30853-7_9 .
Pijović, Milena, Janković, Bojan Ž., Stojiljković, Dragoslava, Radojević, Miloš B., Manić, Nebojša G., "Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues" in Lecture Notes in Networks and Systems, 90 (2020):139-165,
https://doi.org/10.1007/978-3-030-30853-7_9 . .

The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions

Manić, Nebojša G.; Janković, Bojan Ž.; Dodevski, Vladimir; Stojiljković, Dragoslava; Jovanović, Vladimir V.

(2020)

TY  - CHAP
AU  - Manić, Nebojša G.
AU  - Janković, Bojan Ž.
AU  - Dodevski, Vladimir
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir V.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8527
AB  - As waste biomass from fruit processing industry, apricot kernel shells have a potential for conversion to renewable energy through a thermo-chemical process such as pyrolysis. However, due to major differences of biomass characteristics as the well-known issue, it is extremely important to perform detailed analysis of biomass samples from the same type (or same species) but from different geographical regions. Regarding full characterization of considered biomass material and to facilitate further process development, in this paper, the advanced mathematical model for kinetic analysis was used. All performed kinetic modeling represents the process kinetics developed and validated on thermal decomposition studies using simultaneous thermogravimetric analysis (TGA) – differential thermal analysis (DTA) – mass spectrometry (MS) scanning, at four heating rates of 5, 10, 15 and 20 °C min−1, over temperature range 30–900 °C and under an argon (Ar) atmosphere. Model-free analysis for base prediction of decomposition process and deconvolution approach by Fraser-Suzuki functions were utilized for determination of effective activation energies (E), pre-exponential factors (A) and fractional contributions (φ), as well as for separation of overlapping reactions. Comparative study of kinetic results with emission analysis of evolved gas species was also implemented in order to determine the more comprehensive pyrolysis kinetics model. Obtained results strongly indicated that the Fraser-Suzuki deconvolution provides excellent quality of fits with experimental ones, and could be employed to predict devolatilization rates with a high probability. From energy compensation effect properties, it was revealed the existence of unconventional thermal lag due to heat demand by chemical reaction. © Springer Nature Switzerland AG 2020.
T2  - Lecture Notes in Networks and Systems
T1  - The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions
VL  - 90
SP  - 39
EP  - 60
DO  - 10.1007/978-3-030-30853-7_3
ER  - 
@inbook{
author = "Manić, Nebojša G. and Janković, Bojan Ž. and Dodevski, Vladimir and Stojiljković, Dragoslava and Jovanović, Vladimir V.",
year = "2020",
abstract = "As waste biomass from fruit processing industry, apricot kernel shells have a potential for conversion to renewable energy through a thermo-chemical process such as pyrolysis. However, due to major differences of biomass characteristics as the well-known issue, it is extremely important to perform detailed analysis of biomass samples from the same type (or same species) but from different geographical regions. Regarding full characterization of considered biomass material and to facilitate further process development, in this paper, the advanced mathematical model for kinetic analysis was used. All performed kinetic modeling represents the process kinetics developed and validated on thermal decomposition studies using simultaneous thermogravimetric analysis (TGA) – differential thermal analysis (DTA) – mass spectrometry (MS) scanning, at four heating rates of 5, 10, 15 and 20 °C min−1, over temperature range 30–900 °C and under an argon (Ar) atmosphere. Model-free analysis for base prediction of decomposition process and deconvolution approach by Fraser-Suzuki functions were utilized for determination of effective activation energies (E), pre-exponential factors (A) and fractional contributions (φ), as well as for separation of overlapping reactions. Comparative study of kinetic results with emission analysis of evolved gas species was also implemented in order to determine the more comprehensive pyrolysis kinetics model. Obtained results strongly indicated that the Fraser-Suzuki deconvolution provides excellent quality of fits with experimental ones, and could be employed to predict devolatilization rates with a high probability. From energy compensation effect properties, it was revealed the existence of unconventional thermal lag due to heat demand by chemical reaction. © Springer Nature Switzerland AG 2020.",
journal = "Lecture Notes in Networks and Systems",
booktitle = "The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions",
volume = "90",
pages = "39-60",
doi = "10.1007/978-3-030-30853-7_3"
}
Manić, N. G., Janković, B. Ž., Dodevski, V., Stojiljković, D.,& Jovanović, V. V.. (2020). The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions. in Lecture Notes in Networks and Systems, 90, 39-60.
https://doi.org/10.1007/978-3-030-30853-7_3
Manić NG, Janković BŽ, Dodevski V, Stojiljković D, Jovanović VV. The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions. in Lecture Notes in Networks and Systems. 2020;90:39-60.
doi:10.1007/978-3-030-30853-7_3 .
Manić, Nebojša G., Janković, Bojan Ž., Dodevski, Vladimir, Stojiljković, Dragoslava, Jovanović, Vladimir V., "The Pyrolysis of Waste Biomass Investigated by Simultaneous TGA-DTA-MS Measurements and Kinetic Modeling with Deconvolution Functions" in Lecture Notes in Networks and Systems, 90 (2020):39-60,
https://doi.org/10.1007/978-3-030-30853-7_3 . .
1
1
1

The gaseous products characterization of the pyrolysis process of various agricultural residues using TGA–DSC–MS techniques

Janković, Bojan Ž.; Manić, Nebojša G.; Stojiljković, Dragoslava

(2020)

TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Manić, Nebojša G.
AU  - Stojiljković, Dragoslava
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8899
AB  - Slow pyrolysis characteristics of agricultural residue feedstocks (corn brakes, wheat straw, and hazelnut shell) were investigated by simultaneous thermal analysis (STA–TG–DTG–DSC), coupled with mass spectrometry (MS). Thermal decomposition of agricultural residues was divided into three stages, corresponding to removal of water, devolatilization, and formation of bio-char. It was found that differences in thermal behavior of samples are due to differences in their composition. The MS results showed that H2, CH4, H2O, CO2 (C3H8), CO, and C2H6 were the main gaseous products released during pyrolysis. It was shown that hazelnut shells could be a good combustion fuel, since during its pyrolysis at high temperature, more gaseous products compared to other systems are very favored. For hazelnut shell pyrolysis, the CO2 can be used on the large scale for the production of CO-rich syngas. © 2019, Akadémiai Kiadó, Budapest, Hungary.
T2  - Journal of Thermal Analysis and Calorimetry
T1  - The gaseous products characterization of the pyrolysis process of various agricultural residues using TGA–DSC–MS techniques
VL  - 139
IS  - 5
SP  - 3091
EP  - 3106
DO  - 10.1007/s10973-019-08733-4
ER  - 
@article{
author = "Janković, Bojan Ž. and Manić, Nebojša G. and Stojiljković, Dragoslava",
year = "2020",
abstract = "Slow pyrolysis characteristics of agricultural residue feedstocks (corn brakes, wheat straw, and hazelnut shell) were investigated by simultaneous thermal analysis (STA–TG–DTG–DSC), coupled with mass spectrometry (MS). Thermal decomposition of agricultural residues was divided into three stages, corresponding to removal of water, devolatilization, and formation of bio-char. It was found that differences in thermal behavior of samples are due to differences in their composition. The MS results showed that H2, CH4, H2O, CO2 (C3H8), CO, and C2H6 were the main gaseous products released during pyrolysis. It was shown that hazelnut shells could be a good combustion fuel, since during its pyrolysis at high temperature, more gaseous products compared to other systems are very favored. For hazelnut shell pyrolysis, the CO2 can be used on the large scale for the production of CO-rich syngas. © 2019, Akadémiai Kiadó, Budapest, Hungary.",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "The gaseous products characterization of the pyrolysis process of various agricultural residues using TGA–DSC–MS techniques",
volume = "139",
number = "5",
pages = "3091-3106",
doi = "10.1007/s10973-019-08733-4"
}
Janković, B. Ž., Manić, N. G.,& Stojiljković, D.. (2020). The gaseous products characterization of the pyrolysis process of various agricultural residues using TGA–DSC–MS techniques. in Journal of Thermal Analysis and Calorimetry, 139(5), 3091-3106.
https://doi.org/10.1007/s10973-019-08733-4
Janković BŽ, Manić NG, Stojiljković D. The gaseous products characterization of the pyrolysis process of various agricultural residues using TGA–DSC–MS techniques. in Journal of Thermal Analysis and Calorimetry. 2020;139(5):3091-3106.
doi:10.1007/s10973-019-08733-4 .
Janković, Bojan Ž., Manić, Nebojša G., Stojiljković, Dragoslava, "The gaseous products characterization of the pyrolysis process of various agricultural residues using TGA–DSC–MS techniques" in Journal of Thermal Analysis and Calorimetry, 139, no. 5 (2020):3091-3106,
https://doi.org/10.1007/s10973-019-08733-4 . .
8
8
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Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy: Part B

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

(2019)

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

Pljevlja lignite carbon emission characteristics

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

(2019)

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

Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques

Janković, Bojan Ž.; Manić, Nebojša G.; Radović, Ivana; Janković, Marija M.; Rajačić, Milica

(2019)

TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Manić, Nebojša G.
AU  - Radović, Ivana
AU  - Janković, Marija M.
AU  - Rajačić, Milica
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8424
AB  - Thermal and kinetics behaviors of the low-rank coals from different annual periods (Kolubara (2015)/(2018) and TENT A (2015)/(2018)) during combustion process in air atmosphere, using simultaneous TGA-DTG-DTA-MS measurements were investigated. The FTIR spectroscopy was used to gain additional information on coals structures. Kolubara and TENT A coals from (2015)/(2018) annual periods show differences in reactivity, where the reason for this demeanor lies in differences in decomposition kinetics of these coals. The conclusions made on the basis of model-based analysis clearly indicate that differences in combustion reaction pathways (especially in transitions from primary to secondary combustion stages) arise from continual changes in physical structure of the coals. It was found that the mineral matter significantly influences on the reactivity of coal during combustion, where this is particularly pronounced for TENT A coal particles. © 2019 Elsevier B.V.
T2  - Thermochimica Acta
T1  - Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques
VL  - 679
SP  - 178337
DO  - 10.1016/j.tca.2019.178337
ER  - 
@article{
author = "Janković, Bojan Ž. and Manić, Nebojša G. and Radović, Ivana and Janković, Marija M. and Rajačić, Milica",
year = "2019",
abstract = "Thermal and kinetics behaviors of the low-rank coals from different annual periods (Kolubara (2015)/(2018) and TENT A (2015)/(2018)) during combustion process in air atmosphere, using simultaneous TGA-DTG-DTA-MS measurements were investigated. The FTIR spectroscopy was used to gain additional information on coals structures. Kolubara and TENT A coals from (2015)/(2018) annual periods show differences in reactivity, where the reason for this demeanor lies in differences in decomposition kinetics of these coals. The conclusions made on the basis of model-based analysis clearly indicate that differences in combustion reaction pathways (especially in transitions from primary to secondary combustion stages) arise from continual changes in physical structure of the coals. It was found that the mineral matter significantly influences on the reactivity of coal during combustion, where this is particularly pronounced for TENT A coal particles. © 2019 Elsevier B.V.",
journal = "Thermochimica Acta",
title = "Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques",
volume = "679",
pages = "178337",
doi = "10.1016/j.tca.2019.178337"
}
Janković, B. Ž., Manić, N. G., Radović, I., Janković, M. M.,& Rajačić, M.. (2019). Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques. in Thermochimica Acta, 679, 178337.
https://doi.org/10.1016/j.tca.2019.178337
Janković BŽ, Manić NG, Radović I, Janković MM, Rajačić M. Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques. in Thermochimica Acta. 2019;679:178337.
doi:10.1016/j.tca.2019.178337 .
Janković, Bojan Ž., Manić, Nebojša G., Radović, Ivana, Janković, Marija M., Rajačić, Milica, "Model-free and model-based kinetics of the combustion process of low rank coals with high ash contents using TGA-DTG-DTA-MS and FTIR techniques" in Thermochimica Acta, 679 (2019):178337,
https://doi.org/10.1016/j.tca.2019.178337 . .
9
7
8

Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study

Janković, Bojan Ž.; Manić, Nebojša G.; Dodevski, Vladimir; Popović, Jasmina G.; Rusmirović, Jelena D.; Tošić, Miloš S.

(2019)

TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Manić, Nebojša G.
AU  - Dodevski, Vladimir
AU  - Popović, Jasmina G.
AU  - Rusmirović, Jelena D.
AU  - Tošić, Miloš S.
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0016236118317770
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7925
AB  - This paper describes the pyrolysis of Poplar fluff (from Populus alba) using on-line apparatus, and carbonization process at 850 °C using the fixed bed reactor. Characteristics of pyrolysis products were examined. Elemental and chemical analyses were shown that Poplar fluff has higher energy content characterized by increased content of fibrous structure (particularly cellulose). Independent parallel reactions model very well describes devolatilization process. It was found that increased amount of extractives can significantly affect on increased release of light gaseous products, but declining hydrocarbons, mostly the alkanes. Liquid product is mainly composed of phenolics, aldehydes, acids, esters and ketones. The carbonization process produces the great abundance of polycyclic aromatic hydrocarbons (PAH's), where naphthalene is the most abundant. Mechanism for PAH's formation was suggested. This study represents the first step in a much wider and more comprehensive way in thermal conversion processes of this type of fuel. © 2018 Elsevier Ltd
T2  - Fuel
T1  - Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study
VL  - 238
SP  - 111
EP  - 128
DO  - 10.1016/j.fuel.2018.10.064
ER  - 
@article{
author = "Janković, Bojan Ž. and Manić, Nebojša G. and Dodevski, Vladimir and Popović, Jasmina G. and Rusmirović, Jelena D. and Tošić, Miloš S.",
year = "2019",
abstract = "This paper describes the pyrolysis of Poplar fluff (from Populus alba) using on-line apparatus, and carbonization process at 850 °C using the fixed bed reactor. Characteristics of pyrolysis products were examined. Elemental and chemical analyses were shown that Poplar fluff has higher energy content characterized by increased content of fibrous structure (particularly cellulose). Independent parallel reactions model very well describes devolatilization process. It was found that increased amount of extractives can significantly affect on increased release of light gaseous products, but declining hydrocarbons, mostly the alkanes. Liquid product is mainly composed of phenolics, aldehydes, acids, esters and ketones. The carbonization process produces the great abundance of polycyclic aromatic hydrocarbons (PAH's), where naphthalene is the most abundant. Mechanism for PAH's formation was suggested. This study represents the first step in a much wider and more comprehensive way in thermal conversion processes of this type of fuel. © 2018 Elsevier Ltd",
journal = "Fuel",
title = "Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study",
volume = "238",
pages = "111-128",
doi = "10.1016/j.fuel.2018.10.064"
}
Janković, B. Ž., Manić, N. G., Dodevski, V., Popović, J. G., Rusmirović, J. D.,& Tošić, M. S.. (2019). Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study. in Fuel, 238, 111-128.
https://doi.org/10.1016/j.fuel.2018.10.064
Janković BŽ, Manić NG, Dodevski V, Popović JG, Rusmirović JD, Tošić MS. Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study. in Fuel. 2019;238:111-128.
doi:10.1016/j.fuel.2018.10.064 .
Janković, Bojan Ž., Manić, Nebojša G., Dodevski, Vladimir, Popović, Jasmina G., Rusmirović, Jelena D., Tošić, Miloš S., "Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study" in Fuel, 238 (2019):111-128,
https://doi.org/10.1016/j.fuel.2018.10.064 . .
16
16
16

Dielectric properties and kinetic analysis of nonisothermal decomposition of ionic liquids derived from organic acid

Janković, Bojan Ž.; Manić, Nebojša G.; Buchner, Richard; Plowas-Korus, Iwona; Pereiro, Ana B.; Amado-Gonzalez, Eliseo

(2019)

TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Manić, Nebojša G.
AU  - Buchner, Richard
AU  - Plowas-Korus, Iwona
AU  - Pereiro, Ana B.
AU  - Amado-Gonzalez, Eliseo
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0040603118309274
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8011
AB  - Dielectric relaxation spectra of three representatives of the class of hydroxyethylammonium carboxylate protic ionic liquids (PILs), namely 2-hydroxyethylammonium formate [2-HEAF], 2-hydroxyethylammonium propionate [2-HEAP] and 2-hydroxyethylammonium butanoate [2-HEAB], were recorded over a wide frequency range (0.05 ≤ ν(GHz) ≤ 50) at 25 °C. The thermal decomposition kinetics of these ionic liquids derived from organic acids was studied by thermogravimetry (TG) using nonisothermal experiments. For the purpose of kinetic analysis, the thermal behavior of the samples was studied in the temperature interval from ambient temperature up to 420 °C at different heating rates (5, 10, 15 and 20 °C min−1). Isoconversional kinetic analysis was performed using Friedman's (FR) differential method and the integral Kissinger–Akahira–Sunose (KAS) method. The dependence of the apparent activation energy (E) on the conversion fraction (α) for the investigated decomposition processes was analyzed. It was found that the molecular structure of the involved anion significantly influences the dielectric properties of the studied PILs. It was also established that a change in the anion structure drastically affects the shape of the thermo-analytical curves. Among the considered PILs [2-HEAF] has the highest thermal stability. However, considering kinetic properties, certain deviations were observed and referred to hydrogen bonding development and steric impediment effects. © 2018 Elsevier B.V.
T2  - Thermochimica Acta
T1  - Dielectric properties and kinetic analysis of nonisothermal decomposition of ionic liquids derived from organic acid
VL  - 672
SP  - 43
EP  - 52
DO  - 10.1016/j.tca.2018.12.013
ER  - 
@article{
author = "Janković, Bojan Ž. and Manić, Nebojša G. and Buchner, Richard and Plowas-Korus, Iwona and Pereiro, Ana B. and Amado-Gonzalez, Eliseo",
year = "2019",
abstract = "Dielectric relaxation spectra of three representatives of the class of hydroxyethylammonium carboxylate protic ionic liquids (PILs), namely 2-hydroxyethylammonium formate [2-HEAF], 2-hydroxyethylammonium propionate [2-HEAP] and 2-hydroxyethylammonium butanoate [2-HEAB], were recorded over a wide frequency range (0.05 ≤ ν(GHz) ≤ 50) at 25 °C. The thermal decomposition kinetics of these ionic liquids derived from organic acids was studied by thermogravimetry (TG) using nonisothermal experiments. For the purpose of kinetic analysis, the thermal behavior of the samples was studied in the temperature interval from ambient temperature up to 420 °C at different heating rates (5, 10, 15 and 20 °C min−1). Isoconversional kinetic analysis was performed using Friedman's (FR) differential method and the integral Kissinger–Akahira–Sunose (KAS) method. The dependence of the apparent activation energy (E) on the conversion fraction (α) for the investigated decomposition processes was analyzed. It was found that the molecular structure of the involved anion significantly influences the dielectric properties of the studied PILs. It was also established that a change in the anion structure drastically affects the shape of the thermo-analytical curves. Among the considered PILs [2-HEAF] has the highest thermal stability. However, considering kinetic properties, certain deviations were observed and referred to hydrogen bonding development and steric impediment effects. © 2018 Elsevier B.V.",
journal = "Thermochimica Acta",
title = "Dielectric properties and kinetic analysis of nonisothermal decomposition of ionic liquids derived from organic acid",
volume = "672",
pages = "43-52",
doi = "10.1016/j.tca.2018.12.013"
}
Janković, B. Ž., Manić, N. G., Buchner, R., Plowas-Korus, I., Pereiro, A. B.,& Amado-Gonzalez, E.. (2019). Dielectric properties and kinetic analysis of nonisothermal decomposition of ionic liquids derived from organic acid. in Thermochimica Acta, 672, 43-52.
https://doi.org/10.1016/j.tca.2018.12.013
Janković BŽ, Manić NG, Buchner R, Plowas-Korus I, Pereiro AB, Amado-Gonzalez E. Dielectric properties and kinetic analysis of nonisothermal decomposition of ionic liquids derived from organic acid. in Thermochimica Acta. 2019;672:43-52.
doi:10.1016/j.tca.2018.12.013 .
Janković, Bojan Ž., Manić, Nebojša G., Buchner, Richard, Plowas-Korus, Iwona, Pereiro, Ana B., Amado-Gonzalez, Eliseo, "Dielectric properties and kinetic analysis of nonisothermal decomposition of ionic liquids derived from organic acid" in Thermochimica Acta, 672 (2019):43-52,
https://doi.org/10.1016/j.tca.2018.12.013 . .
1
3
3
4

Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization

Janković, Bojan Ž.; Manić, Nebojša G.; Dodevski, Vladimir; Radović, Ivana; Pijović, Milena; Katnić, Đurica B.; Tasić, Gvozden S.

(2019)

TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Manić, Nebojša G.
AU  - Dodevski, Vladimir
AU  - Radović, Ivana
AU  - Pijović, Milena
AU  - Katnić, Đurica B.
AU  - Tasić, Gvozden S.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8393
AB  - This paper investigates the ability of waste apricot (Prunus armeniaca) kernel shells (AKS) bio-char prepared by single-step carbonization process at 850 °C (residence time of 1 h) for possible removal of toxic elements and organic micro-pollutants. The experiment that was performed as well as parameters used proved to be optimal for bio-char production as adsorbing medium, where last issue is validated by multiform material characterization techniques. It has been shown that the produced bio-char possess highly-porous morphology features, with large specific surface area (328.570 m2 g−1). The obtained product was characterized by various pore sizes (including super-micropores and mesopores with maximum pore size of 2.24 nm) structures. Preliminary results are indicated that obtained bio-char can shows increased affinity to possible adsorption of the small organic molecule contaminants upgraded by its physico-chemical properties. Cost estimation of AKS bio-char production substantiated its cost effectiveness and its good physical and chemical properties for future design in batch adsorption and regeneration tests. It was established that AKS produced bio-char was 2.5 times cheaper than the commercially available activated carbon. Bio-char exhibits promising removal performances for potential adsorption of heavy metal and organic micro-pollutants from wastewaters systems, as indicated by material textures and spectroscopy measurements. © 2019 Elsevier Ltd
T2  - Journal of Cleaner Production
T1  - Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization
VL  - 236
SP  - 117614
DO  - 10.1016/j.jclepro.2019.117614
ER  - 
@article{
author = "Janković, Bojan Ž. and Manić, Nebojša G. and Dodevski, Vladimir and Radović, Ivana and Pijović, Milena and Katnić, Đurica B. and Tasić, Gvozden S.",
year = "2019",
abstract = "This paper investigates the ability of waste apricot (Prunus armeniaca) kernel shells (AKS) bio-char prepared by single-step carbonization process at 850 °C (residence time of 1 h) for possible removal of toxic elements and organic micro-pollutants. The experiment that was performed as well as parameters used proved to be optimal for bio-char production as adsorbing medium, where last issue is validated by multiform material characterization techniques. It has been shown that the produced bio-char possess highly-porous morphology features, with large specific surface area (328.570 m2 g−1). The obtained product was characterized by various pore sizes (including super-micropores and mesopores with maximum pore size of 2.24 nm) structures. Preliminary results are indicated that obtained bio-char can shows increased affinity to possible adsorption of the small organic molecule contaminants upgraded by its physico-chemical properties. Cost estimation of AKS bio-char production substantiated its cost effectiveness and its good physical and chemical properties for future design in batch adsorption and regeneration tests. It was established that AKS produced bio-char was 2.5 times cheaper than the commercially available activated carbon. Bio-char exhibits promising removal performances for potential adsorption of heavy metal and organic micro-pollutants from wastewaters systems, as indicated by material textures and spectroscopy measurements. © 2019 Elsevier Ltd",
journal = "Journal of Cleaner Production",
title = "Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization",
volume = "236",
pages = "117614",
doi = "10.1016/j.jclepro.2019.117614"
}
Janković, B. Ž., Manić, N. G., Dodevski, V., Radović, I., Pijović, M., Katnić, Đ. B.,& Tasić, G. S.. (2019). Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization. in Journal of Cleaner Production, 236, 117614.
https://doi.org/10.1016/j.jclepro.2019.117614
Janković BŽ, Manić NG, Dodevski V, Radović I, Pijović M, Katnić ĐB, Tasić GS. Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization. in Journal of Cleaner Production. 2019;236:117614.
doi:10.1016/j.jclepro.2019.117614 .
Janković, Bojan Ž., Manić, Nebojša G., Dodevski, Vladimir, Radović, Ivana, Pijović, Milena, Katnić, Đurica B., Tasić, Gvozden S., "Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization" in Journal of Cleaner Production, 236 (2019):117614,
https://doi.org/10.1016/j.jclepro.2019.117614 . .
17
11
17

Mathematical modelling of swirl oxy-fuel burner flame characteristics

Jovanović, Rastko D.; Swiatkowski, Bartosz; Kakietek, Slawomir; Škobalj, Predrag D.; Lazović, Ivan; Cvetinović, Dejan

(2019)

TY  - JOUR
AU  - Jovanović, Rastko D.
AU  - Swiatkowski, Bartosz
AU  - Kakietek, Slawomir
AU  - Škobalj, Predrag D.
AU  - Lazović, Ivan
AU  - Cvetinović, Dejan
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S019689041930439X
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8149
AB  - Oxy-fuel combustion is the most promising carbon capture and storage technology, which eliminates carbon dioxide emissions into the atmosphere and also decreases nitrogen oxides emissions thereby lowering global warming potential. In order to implement oxy-fuel combustion technology in full scale power plants, its costs, mainly connected with the amount of pure oxygen produced, must be lowered. The main hypothesis is that it is possible to maintain similar velocity and heat transfer distribution while maintaining stable and efficient burner operation during both combustion technologies modifying burner aerodynamics. Excess oxygen is chosen as a representative parameter of burner's performance and investigation is carried out for four different oxy-fuel burner oxygen excess ratios (λ: 0.8, 0.98, 1.07, and 1.24) together with reference air combustion case. This study suggests a workflow, based on semi-industrial experimental investigations and computational fluid dynamics model composed of advanced sub-models for different combustion phases for development of real scale dual-mode coal swirl burners able for efficient operation during both combustion regimes. The results show that the temperature in near-burner zone and nitrogen oxides emissions increase, while carbon monoxide emissions decrease with the increase of burner oxygen excess ratio, and stable combustion with similar velocity and temperature distributions for both combustion modes is achieved for oxygen excess ratio of 1.07, with decrease in nitrogen oxides and carbon monoxide emissions during oxy-fuel combustion. The performed study demonstrates that it is possible to choose the appropriate burner settings regarding nitrogen oxides and carbon monoxide emissions and burner's ability to operate stably in both air and oxy-fuel combustion modes. © 2019 Elsevier Ltd
T2  - Energy Conversion and Management
T1  - Mathematical modelling of swirl oxy-fuel burner flame characteristics
VL  - 191
SP  - 193
EP  - 207
DO  - 10.1016/j.enconman.2019.04.027
ER  - 
@article{
author = "Jovanović, Rastko D. and Swiatkowski, Bartosz and Kakietek, Slawomir and Škobalj, Predrag D. and Lazović, Ivan and Cvetinović, Dejan",
year = "2019",
abstract = "Oxy-fuel combustion is the most promising carbon capture and storage technology, which eliminates carbon dioxide emissions into the atmosphere and also decreases nitrogen oxides emissions thereby lowering global warming potential. In order to implement oxy-fuel combustion technology in full scale power plants, its costs, mainly connected with the amount of pure oxygen produced, must be lowered. The main hypothesis is that it is possible to maintain similar velocity and heat transfer distribution while maintaining stable and efficient burner operation during both combustion technologies modifying burner aerodynamics. Excess oxygen is chosen as a representative parameter of burner's performance and investigation is carried out for four different oxy-fuel burner oxygen excess ratios (λ: 0.8, 0.98, 1.07, and 1.24) together with reference air combustion case. This study suggests a workflow, based on semi-industrial experimental investigations and computational fluid dynamics model composed of advanced sub-models for different combustion phases for development of real scale dual-mode coal swirl burners able for efficient operation during both combustion regimes. The results show that the temperature in near-burner zone and nitrogen oxides emissions increase, while carbon monoxide emissions decrease with the increase of burner oxygen excess ratio, and stable combustion with similar velocity and temperature distributions for both combustion modes is achieved for oxygen excess ratio of 1.07, with decrease in nitrogen oxides and carbon monoxide emissions during oxy-fuel combustion. The performed study demonstrates that it is possible to choose the appropriate burner settings regarding nitrogen oxides and carbon monoxide emissions and burner's ability to operate stably in both air and oxy-fuel combustion modes. © 2019 Elsevier Ltd",
journal = "Energy Conversion and Management",
title = "Mathematical modelling of swirl oxy-fuel burner flame characteristics",
volume = "191",
pages = "193-207",
doi = "10.1016/j.enconman.2019.04.027"
}
Jovanović, R. D., Swiatkowski, B., Kakietek, S., Škobalj, P. D., Lazović, I.,& Cvetinović, D.. (2019). Mathematical modelling of swirl oxy-fuel burner flame characteristics. in Energy Conversion and Management, 191, 193-207.
https://doi.org/10.1016/j.enconman.2019.04.027
Jovanović RD, Swiatkowski B, Kakietek S, Škobalj PD, Lazović I, Cvetinović D. Mathematical modelling of swirl oxy-fuel burner flame characteristics. in Energy Conversion and Management. 2019;191:193-207.
doi:10.1016/j.enconman.2019.04.027 .
Jovanović, Rastko D., Swiatkowski, Bartosz, Kakietek, Slawomir, Škobalj, Predrag D., Lazović, Ivan, Cvetinović, Dejan, "Mathematical modelling of swirl oxy-fuel burner flame characteristics" in Energy Conversion and Management, 191 (2019):193-207,
https://doi.org/10.1016/j.enconman.2019.04.027 . .
10
10
11

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

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

(2019)

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

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

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

(2018)

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

Energy Indicators Impact in Multi-Criteria Sustainability Analyse of Thermal Power Plant Unit

Škobalj, Predrag D.; Kijevčanin, Mirjana Lj.; Jovanović, Marina P.; Afgan, Naim H.; Erić, Milić D.

(2017)

TY  - JOUR
AU  - Škobalj, Predrag D.
AU  - Kijevčanin, Mirjana Lj.
AU  - Jovanović, Marina P.
AU  - Afgan, Naim H.
AU  - Erić, Milić D.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1550
AB  - This paper presents method for sustainability assessment of thermal power plant unit using multi-criteria analysis with aim to create base for business decision. Seven options of possible status of thermal power plant Kolubara A unit No. 2 with energy indicators of sustainable development were shown. Energy indicators of sustainable development consists of sets of resource preservation, economic, environmental, and social indicators. Sustainability assessment often fails to account for social influence on energy system. Considering to this, special focus will be on social indicators, their definition, forming, and impact on multi-criteria sustainability analysis. Analysis of quality of the selected options (energy systems) in respect to sustainable development by compare of their general index of sustainability is presented. Methodology of multi-criteria analyse of thermal power plant unit can show decision makers how to find best available options when the social indicators impact is leading. The aim of this paper is to choose the criteria for the evaluation of the available options, determine the relative importance of specific criteria and present methodology of multi-criteria analysis in the decision-making process.
T2  - Thermal Science
T1  - Energy Indicators Impact in Multi-Criteria Sustainability Analyse of Thermal Power Plant Unit
VL  - 21
IS  - 2
SP  - 1143
EP  - 1151
DO  - 10.2298/TSCI160215178S
ER  - 
@article{
author = "Škobalj, Predrag D. and Kijevčanin, Mirjana Lj. and Jovanović, Marina P. and Afgan, Naim H. and Erić, Milić D.",
year = "2017",
abstract = "This paper presents method for sustainability assessment of thermal power plant unit using multi-criteria analysis with aim to create base for business decision. Seven options of possible status of thermal power plant Kolubara A unit No. 2 with energy indicators of sustainable development were shown. Energy indicators of sustainable development consists of sets of resource preservation, economic, environmental, and social indicators. Sustainability assessment often fails to account for social influence on energy system. Considering to this, special focus will be on social indicators, their definition, forming, and impact on multi-criteria sustainability analysis. Analysis of quality of the selected options (energy systems) in respect to sustainable development by compare of their general index of sustainability is presented. Methodology of multi-criteria analyse of thermal power plant unit can show decision makers how to find best available options when the social indicators impact is leading. The aim of this paper is to choose the criteria for the evaluation of the available options, determine the relative importance of specific criteria and present methodology of multi-criteria analysis in the decision-making process.",
journal = "Thermal Science",
title = "Energy Indicators Impact in Multi-Criteria Sustainability Analyse of Thermal Power Plant Unit",
volume = "21",
number = "2",
pages = "1143-1151",
doi = "10.2298/TSCI160215178S"
}
Škobalj, P. D., Kijevčanin, M. Lj., Jovanović, M. P., Afgan, N. H.,& Erić, M. D.. (2017). Energy Indicators Impact in Multi-Criteria Sustainability Analyse of Thermal Power Plant Unit. in Thermal Science, 21(2), 1143-1151.
https://doi.org/10.2298/TSCI160215178S
Škobalj PD, Kijevčanin ML, Jovanović MP, Afgan NH, Erić MD. Energy Indicators Impact in Multi-Criteria Sustainability Analyse of Thermal Power Plant Unit. in Thermal Science. 2017;21(2):1143-1151.
doi:10.2298/TSCI160215178S .
Škobalj, Predrag D., Kijevčanin, Mirjana Lj., Jovanović, Marina P., Afgan, Naim H., Erić, Milić D., "Energy Indicators Impact in Multi-Criteria Sustainability Analyse of Thermal Power Plant Unit" in Thermal Science, 21, no. 2 (2017):1143-1151,
https://doi.org/10.2298/TSCI160215178S . .
1

Multi-criteria sustainability analysis of thermal power plant Kolubara-A Unit 2

Škobalj, Predrag D.; Kijevčanin, Mirjana Lj.; Afgan, Naim H.; Jovanović, Marina P.; Turanjanin, Valentina; Vučićević, Biljana S.

(2017)

TY  - JOUR
AU  - Škobalj, Predrag D.
AU  - Kijevčanin, Mirjana Lj.
AU  - Afgan, Naim H.
AU  - Jovanović, Marina P.
AU  - Turanjanin, Valentina
AU  - Vučićević, Biljana S.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1574
AB  - The paper presents a possible approach for creating business decisions based on multi-criteria analysis. Seven options for a possible revitalization of the thermal power plant Kolubara-A Unit No. 2 with energy indicators of sustainable development (EISD) are presented in this paper. The chosen EISD numerically express the essential features of the analyzed options, while the sustainability criteria indicate the option quality within the limits of these indicators. In this paper, the criteria for assessing the sustainability options are defined based on several aspects: economic, social, environmental and technological. In the process of assessing the sustainability of the considered options the Analysis and Synthesis of Parameters under Information Deficiency (ASPID) method was used. In this paper, the EISD show that production and energy consumption are closely linked to economic, environmental and other indicators, such as economic and technological development of local communities with employment being one of the most important social parameter. Multi-criteria analysis for the case study of the TPP Kolubara-A clearly indicated recommendations to decision makers on the choice of the best available options in dependence on the energy policy. (C) 2017 Elsevier Ltd. All rights reserved.
T2  - Energy
T1  - Multi-criteria sustainability analysis of thermal power plant Kolubara-A Unit 2
VL  - 125
SP  - 837
EP  - 847
DO  - 10.1016/j.energy.2017.02.027
ER  - 
@article{
author = "Škobalj, Predrag D. and Kijevčanin, Mirjana Lj. and Afgan, Naim H. and Jovanović, Marina P. and Turanjanin, Valentina and Vučićević, Biljana S.",
year = "2017",
abstract = "The paper presents a possible approach for creating business decisions based on multi-criteria analysis. Seven options for a possible revitalization of the thermal power plant Kolubara-A Unit No. 2 with energy indicators of sustainable development (EISD) are presented in this paper. The chosen EISD numerically express the essential features of the analyzed options, while the sustainability criteria indicate the option quality within the limits of these indicators. In this paper, the criteria for assessing the sustainability options are defined based on several aspects: economic, social, environmental and technological. In the process of assessing the sustainability of the considered options the Analysis and Synthesis of Parameters under Information Deficiency (ASPID) method was used. In this paper, the EISD show that production and energy consumption are closely linked to economic, environmental and other indicators, such as economic and technological development of local communities with employment being one of the most important social parameter. Multi-criteria analysis for the case study of the TPP Kolubara-A clearly indicated recommendations to decision makers on the choice of the best available options in dependence on the energy policy. (C) 2017 Elsevier Ltd. All rights reserved.",
journal = "Energy",
title = "Multi-criteria sustainability analysis of thermal power plant Kolubara-A Unit 2",
volume = "125",
pages = "837-847",
doi = "10.1016/j.energy.2017.02.027"
}
Škobalj, P. D., Kijevčanin, M. Lj., Afgan, N. H., Jovanović, M. P., Turanjanin, V.,& Vučićević, B. S.. (2017). Multi-criteria sustainability analysis of thermal power plant Kolubara-A Unit 2. in Energy, 125, 837-847.
https://doi.org/10.1016/j.energy.2017.02.027
Škobalj PD, Kijevčanin ML, Afgan NH, Jovanović MP, Turanjanin V, Vučićević BS. Multi-criteria sustainability analysis of thermal power plant Kolubara-A Unit 2. in Energy. 2017;125:837-847.
doi:10.1016/j.energy.2017.02.027 .
Škobalj, Predrag D., Kijevčanin, Mirjana Lj., Afgan, Naim H., Jovanović, Marina P., Turanjanin, Valentina, Vučićević, Biljana S., "Multi-criteria sustainability analysis of thermal power plant Kolubara-A Unit 2" in Energy, 125 (2017):837-847,
https://doi.org/10.1016/j.energy.2017.02.027 . .
8
5
7

Experimental and Numerical Investigation of Flame Characteristics During Swirl Burner Operation under Conventional and Oxy-Fuel Conditions

Jovanović, Rastko D.; Strug, Krzysztof; Swiatkowski, Bartosz; Kakietek, Slawomir; Jagiello, Krzysztof; Cvetinović, Dejan

(2017)

TY  - JOUR
AU  - Jovanović, Rastko D.
AU  - Strug, Krzysztof
AU  - Swiatkowski, Bartosz
AU  - Kakietek, Slawomir
AU  - Jagiello, Krzysztof
AU  - Cvetinović, Dejan
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1630
AB  - Oxy-fuel coal combustion, together with carbon capture and storage or utilization, is a set of technologies allowing to burn coal without emitting globe warming CO2. As it is expected that oxy-fuel combustion may be used for a retrofit of existing boilers, development of a novel oxy-burners is very important step. It is expected that these burners will be able to sustain stable flame in oxy-fuel conditions, but also, for start-up and emergency reasons, in conventional, air conditions. The most cost effective way of achieving dual-mode boilers is to introduce dual-mode burners. Numerical simulations allow investigation of new designs and technologies at a relatively low cost, but for the results to be trustworthy they need to be validated This paper proposes a workflow for design, modeling, and validation of dual-mode burners by combining experimental investigation and numerical simulations. Experiments are performed with semi-industrial scale burners in 0.5 MW, test facility for flame investigation. Novel CFD model based on ANSYS FLUENT solver, with special consideration of coal combustion process, especially regarding devolatilization, ignition, gaseous and surface reactions, NOx formation, and radiation was suggested The main model feature is its ability to simulate pulverized coal combustion under different combusting atmospheres, and thus is suitable for both air and oxy-fuel combustion simulations. Using the proposed methodology two designs of pulverized coal burners have been investigated both experimentally and numerically giving consistent results. The improved burner design proved to be a more flexible device, achieving stable ignition and combustion during both combustion regimes: conventional in air and oxy-fuel in a mixture of O-2 and CO2 (representing dry recycledflue gas with high CO2 content). The proposed framework is expected to be of use for further improvement of multi-mode pulverized fuel swirl burners but can be also used for independent designs evaluation.
T2  - Thermal Science
T1  - Experimental and Numerical Investigation of Flame Characteristics During Swirl Burner Operation under Conventional and Oxy-Fuel Conditions
VL  - 21
IS  - 3
SP  - 1463
EP  - 1477
DO  - 10.2298/TSCI161110325J
ER  - 
@article{
author = "Jovanović, Rastko D. and Strug, Krzysztof and Swiatkowski, Bartosz and Kakietek, Slawomir and Jagiello, Krzysztof and Cvetinović, Dejan",
year = "2017",
abstract = "Oxy-fuel coal combustion, together with carbon capture and storage or utilization, is a set of technologies allowing to burn coal without emitting globe warming CO2. As it is expected that oxy-fuel combustion may be used for a retrofit of existing boilers, development of a novel oxy-burners is very important step. It is expected that these burners will be able to sustain stable flame in oxy-fuel conditions, but also, for start-up and emergency reasons, in conventional, air conditions. The most cost effective way of achieving dual-mode boilers is to introduce dual-mode burners. Numerical simulations allow investigation of new designs and technologies at a relatively low cost, but for the results to be trustworthy they need to be validated This paper proposes a workflow for design, modeling, and validation of dual-mode burners by combining experimental investigation and numerical simulations. Experiments are performed with semi-industrial scale burners in 0.5 MW, test facility for flame investigation. Novel CFD model based on ANSYS FLUENT solver, with special consideration of coal combustion process, especially regarding devolatilization, ignition, gaseous and surface reactions, NOx formation, and radiation was suggested The main model feature is its ability to simulate pulverized coal combustion under different combusting atmospheres, and thus is suitable for both air and oxy-fuel combustion simulations. Using the proposed methodology two designs of pulverized coal burners have been investigated both experimentally and numerically giving consistent results. The improved burner design proved to be a more flexible device, achieving stable ignition and combustion during both combustion regimes: conventional in air and oxy-fuel in a mixture of O-2 and CO2 (representing dry recycledflue gas with high CO2 content). The proposed framework is expected to be of use for further improvement of multi-mode pulverized fuel swirl burners but can be also used for independent designs evaluation.",
journal = "Thermal Science",
title = "Experimental and Numerical Investigation of Flame Characteristics During Swirl Burner Operation under Conventional and Oxy-Fuel Conditions",
volume = "21",
number = "3",
pages = "1463-1477",
doi = "10.2298/TSCI161110325J"
}
Jovanović, R. D., Strug, K., Swiatkowski, B., Kakietek, S., Jagiello, K.,& Cvetinović, D.. (2017). Experimental and Numerical Investigation of Flame Characteristics During Swirl Burner Operation under Conventional and Oxy-Fuel Conditions. in Thermal Science, 21(3), 1463-1477.
https://doi.org/10.2298/TSCI161110325J
Jovanović RD, Strug K, Swiatkowski B, Kakietek S, Jagiello K, Cvetinović D. Experimental and Numerical Investigation of Flame Characteristics During Swirl Burner Operation under Conventional and Oxy-Fuel Conditions. in Thermal Science. 2017;21(3):1463-1477.
doi:10.2298/TSCI161110325J .
Jovanović, Rastko D., Strug, Krzysztof, Swiatkowski, Bartosz, Kakietek, Slawomir, Jagiello, Krzysztof, Cvetinović, Dejan, "Experimental and Numerical Investigation of Flame Characteristics During Swirl Burner Operation under Conventional and Oxy-Fuel Conditions" in Thermal Science, 21, no. 3 (2017):1463-1477,
https://doi.org/10.2298/TSCI161110325J . .
9
10
11

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

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

(2016)

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

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

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

(2016)

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

Fluid Bed Drying as Upgrading Technology for Feasible Treatment of Kolubara Lignite

Erić, Milić D.; Stakic, Milan B.; Banjac, Miloš J.

(2016)

TY  - JOUR
AU  - Erić, Milić D.
AU  - Stakic, Milan B.
AU  - Banjac, Miloš J.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1142
AB  - An overview of the current status of low-rank coal upgrading technologies is presented in the paper, particularly with respect to drying and dewatering procedures. In order to calculate the significant parameters of the moisture removal process, a model of convective coal drying in a fluid bed, based on the two-phase (bubbling) fluidization model proposed by Kunii and Levenspiel, is developed and presented. Product-specific data (intraparticle mass transfer, gas-solid moisture equilibrium) related to the particular coal variety addressed here (Kolubara lignite) are obtained through preliminary investigations. Effective thermal conductivity of the packed bed as defined by Zehner/Bauer/Schlunder is used to define heat transfer mechanisms occurring in the suspension phase of the fluid bed. A completely new set of experimental data obtained has been successfully used to validate the model additionally.
T2  - Thermal Science
T1  - Fluid Bed Drying as Upgrading Technology for Feasible Treatment of Kolubara Lignite
VL  - 20
SP  - S167
EP  - S181
DO  - 10.2298/TSCI150725172E
ER  - 
@article{
author = "Erić, Milić D. and Stakic, Milan B. and Banjac, Miloš J.",
year = "2016",
abstract = "An overview of the current status of low-rank coal upgrading technologies is presented in the paper, particularly with respect to drying and dewatering procedures. In order to calculate the significant parameters of the moisture removal process, a model of convective coal drying in a fluid bed, based on the two-phase (bubbling) fluidization model proposed by Kunii and Levenspiel, is developed and presented. Product-specific data (intraparticle mass transfer, gas-solid moisture equilibrium) related to the particular coal variety addressed here (Kolubara lignite) are obtained through preliminary investigations. Effective thermal conductivity of the packed bed as defined by Zehner/Bauer/Schlunder is used to define heat transfer mechanisms occurring in the suspension phase of the fluid bed. A completely new set of experimental data obtained has been successfully used to validate the model additionally.",
journal = "Thermal Science",
title = "Fluid Bed Drying as Upgrading Technology for Feasible Treatment of Kolubara Lignite",
volume = "20",
pages = "S167-S181",
doi = "10.2298/TSCI150725172E"
}
Erić, M. D., Stakic, M. B.,& Banjac, M. J.. (2016). Fluid Bed Drying as Upgrading Technology for Feasible Treatment of Kolubara Lignite. in Thermal Science, 20, S167-S181.
https://doi.org/10.2298/TSCI150725172E
Erić MD, Stakic MB, Banjac MJ. Fluid Bed Drying as Upgrading Technology for Feasible Treatment of Kolubara Lignite. in Thermal Science. 2016;20:S167-S181.
doi:10.2298/TSCI150725172E .
Erić, Milić D., Stakic, Milan B., Banjac, Miloš J., "Fluid Bed Drying as Upgrading Technology for Feasible Treatment of Kolubara Lignite" in Thermal Science, 20 (2016):S167-S181,
https://doi.org/10.2298/TSCI150725172E . .
1
1

Lattice Monte Carlo simulation of single coal char particle combustion under oxy-fuel conditions

Jovanović, Rastko D.; Marek, Ewa; Maletić, Slobodan; Cvetinović, Dejan; Marković, Zoran J.

(2015)

TY  - JOUR
AU  - Jovanović, Rastko D.
AU  - Marek, Ewa
AU  - Maletić, Slobodan
AU  - Cvetinović, Dejan
AU  - Marković, Zoran J.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7066
AB  - A descriptive model for isolated char particle combustion under conventional and oxy-fuel conditions was developed. Suggested model is based on the percolation theory and Monte Carlo simulation technique. Char particle was modeled as a square lattice consisting of a large number of small sites. Sites correspond either to fixed carbon, ash, or pore, and they were distributed randomly inside char lattice using percolation concept, at the start of simulation. Random walk model was used to represent gaseous species diffusion through particle pores. Char combustion was modeled using power law Arrhenius model which assumes that reaction rate depends of particle temperature and oxygen partial pressure on particle surface. The main aim of the proposed model was to take into account influence of heterogeneous char particle structure to randomness of the char combustion process. The suggested models behavior was validated by qualitative comparison with experimental data obtained in single particle reactor. It was found that simulated combustion time, char burnout and particle temperature values are in good agreement with experimentally determined data. Special emphasis was given to the CO2 gasification reaction influence on char conversion and particle temperature values. Further development of the proposed model with appropriate simplifications would enable its inclusion in comprehensive CFD codes. (C) 2015 Elsevier Ltd. All rights reserved.
T2  - Fuel
T1  - Lattice Monte Carlo simulation of single coal char particle combustion under oxy-fuel conditions
VL  - 151
SP  - 172
EP  - 181
DO  - 10.1016/j.fuel.2015.02.104
ER  - 
@article{
author = "Jovanović, Rastko D. and Marek, Ewa and Maletić, Slobodan and Cvetinović, Dejan and Marković, Zoran J.",
year = "2015",
abstract = "A descriptive model for isolated char particle combustion under conventional and oxy-fuel conditions was developed. Suggested model is based on the percolation theory and Monte Carlo simulation technique. Char particle was modeled as a square lattice consisting of a large number of small sites. Sites correspond either to fixed carbon, ash, or pore, and they were distributed randomly inside char lattice using percolation concept, at the start of simulation. Random walk model was used to represent gaseous species diffusion through particle pores. Char combustion was modeled using power law Arrhenius model which assumes that reaction rate depends of particle temperature and oxygen partial pressure on particle surface. The main aim of the proposed model was to take into account influence of heterogeneous char particle structure to randomness of the char combustion process. The suggested models behavior was validated by qualitative comparison with experimental data obtained in single particle reactor. It was found that simulated combustion time, char burnout and particle temperature values are in good agreement with experimentally determined data. Special emphasis was given to the CO2 gasification reaction influence on char conversion and particle temperature values. Further development of the proposed model with appropriate simplifications would enable its inclusion in comprehensive CFD codes. (C) 2015 Elsevier Ltd. All rights reserved.",
journal = "Fuel",
title = "Lattice Monte Carlo simulation of single coal char particle combustion under oxy-fuel conditions",
volume = "151",
pages = "172-181",
doi = "10.1016/j.fuel.2015.02.104"
}
Jovanović, R. D., Marek, E., Maletić, S., Cvetinović, D.,& Marković, Z. J.. (2015). Lattice Monte Carlo simulation of single coal char particle combustion under oxy-fuel conditions. in Fuel, 151, 172-181.
https://doi.org/10.1016/j.fuel.2015.02.104
Jovanović RD, Marek E, Maletić S, Cvetinović D, Marković ZJ. Lattice Monte Carlo simulation of single coal char particle combustion under oxy-fuel conditions. in Fuel. 2015;151:172-181.
doi:10.1016/j.fuel.2015.02.104 .
Jovanović, Rastko D., Marek, Ewa, Maletić, Slobodan, Cvetinović, Dejan, Marković, Zoran J., "Lattice Monte Carlo simulation of single coal char particle combustion under oxy-fuel conditions" in Fuel, 151 (2015):172-181,
https://doi.org/10.1016/j.fuel.2015.02.104 . .
16
17
18

Регенеративни поступци уклањања сумпор-диоксида из димних гасова - избор и одређивање термофизичких својстава нових растварача и њихових смеша и моделовање процеса

Živković, Nikola V.

(Универзитет у Београду, Технолошко-металуршки факултет, 2015)

TY  - THES
AU  - Živković, Nikola V.
PY  - 2015
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=3073
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:11336/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=47649807
UR  - http://nardus.mpn.gov.rs/123456789/5710
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7283
AB  - Сумпор-диоксид је гас стаклене баште са индиректним дејством, који настајесагоревањем фосилних горива (угља или нафте), која имају удео сумпора у свомсаставу. У Републици Србији ови енергенти су доминантни у процесу производњеелектричне енергије у оквиру Јавног предузећа Електропривреда Србије (ЈПЕПС). Већ дуго времена је познато да сумпор-диоксид има штетан утицај наљудско здравље, животну околину и на климатске промене. У погледу штетногутицаја на људско здравље, сумпор-диоксид узрокује астму, смањује капацитетплућа и узрокује запаљенске процесе респираторног тракта. У погледу штетногдејства на околину, утиче на закисељавање терена и подземних вода, уништававегетацију и штетно делује на грађевинске објекте. Појава хлађења атмосфере,услед формирања честица сулфата, један је од од мноштва непожељних ефекатана промену климе.Процеси за уклањање сумпорних оксида из димних гасова у енергетици ипроцесној индустрији, добијаjу на значају порастом свести о значају њиховогуклањања. Паралелно је растао и значај доношења законске регулативе која ћерегулисати ову проблематику, првенствено у индустријски најразвијенијимземљама. Иако је у практичној индустријској употреби, уназад већ неколикодеценија, мокри кречњачки поступак још увек најзаступљенији процес заодсумпоравање димних гасова, у последње време, све чешћу примену имајупроцеси са хемијском и физичком апсорпцијом и термичком регенерацијомсолвента. Предности регенеративних апсорпционих поступака су ефикасност иеколошки аспекти...
AB  - Sulfur dioxide is a greenhouse gas with an indirect effect, produced by burning fossil fuels (coal or oil), with a sulfur in its composition. In The Republic of Serbia, within the Public Enterprise Electric Power Industry of Serbia (EPS), these fuels are dominant in the production of electricity. It is known that sulfur dioxide has a harmful effect on human health, the environment and climate change. With respect to the harmful effect on the human health, sulfur dioxide causes asthma, and reduce the capacity of the lungscauses inflammation of the respiratory tract. In terms of adverse effects on theenvironment, it has adverse impact on terrain and ground water acidification, destroying vegetation and damaging impact on buildings. The appearance of atmosphere cooling, due to the formation of sulfate particles is just one of many adverse effects on climate change.Process for sulfur oxides removal from the flue gases in the energy and processindustries, were not important in the past, until its importance was gained. Legislation that will regulate this matter, especially in industrially developed countries, simultaneously had its growing trend. The wet limestone process is still the most common process for flue gas desulphurization, although it has had its practical use in industy, for several decades ago. Process with chemical and physical absorption and thermal regeneration of the solvent, have more and more frequent application.Absorption processes with thermal regeneration have its advantages, among them areefficiency and environmental aspects.
PB  - Универзитет у Београду, Технолошко-металуршки факултет
T2  - Универзитет у Београду
T1  - Регенеративни поступци уклањања сумпор-диоксида из димних гасова - избор и одређивање термофизичких својстава нових растварача и њихових смеша и моделовање процеса
T1  - Regenerative processes of removing sulfur dioxide from flue gases - selection and determination of thermo-physical properties of new solvents and their mixtures and process modeling
ER  - 
@phdthesis{
author = "Živković, Nikola V.",
year = "2015",
abstract = "Сумпор-диоксид је гас стаклене баште са индиректним дејством, који настајесагоревањем фосилних горива (угља или нафте), која имају удео сумпора у свомсаставу. У Републици Србији ови енергенти су доминантни у процесу производњеелектричне енергије у оквиру Јавног предузећа Електропривреда Србије (ЈПЕПС). Већ дуго времена је познато да сумпор-диоксид има штетан утицај наљудско здравље, животну околину и на климатске промене. У погледу штетногутицаја на људско здравље, сумпор-диоксид узрокује астму, смањује капацитетплућа и узрокује запаљенске процесе респираторног тракта. У погледу штетногдејства на околину, утиче на закисељавање терена и подземних вода, уништававегетацију и штетно делује на грађевинске објекте. Појава хлађења атмосфере,услед формирања честица сулфата, један је од од мноштва непожељних ефекатана промену климе.Процеси за уклањање сумпорних оксида из димних гасова у енергетици ипроцесној индустрији, добијаjу на значају порастом свести о значају њиховогуклањања. Паралелно је растао и значај доношења законске регулативе која ћерегулисати ову проблематику, првенствено у индустријски најразвијенијимземљама. Иако је у практичној индустријској употреби, уназад већ неколикодеценија, мокри кречњачки поступак још увек најзаступљенији процес заодсумпоравање димних гасова, у последње време, све чешћу примену имајупроцеси са хемијском и физичком апсорпцијом и термичком регенерацијомсолвента. Предности регенеративних апсорпционих поступака су ефикасност иеколошки аспекти..., Sulfur dioxide is a greenhouse gas with an indirect effect, produced by burning fossil fuels (coal or oil), with a sulfur in its composition. In The Republic of Serbia, within the Public Enterprise Electric Power Industry of Serbia (EPS), these fuels are dominant in the production of electricity. It is known that sulfur dioxide has a harmful effect on human health, the environment and climate change. With respect to the harmful effect on the human health, sulfur dioxide causes asthma, and reduce the capacity of the lungscauses inflammation of the respiratory tract. In terms of adverse effects on theenvironment, it has adverse impact on terrain and ground water acidification, destroying vegetation and damaging impact on buildings. The appearance of atmosphere cooling, due to the formation of sulfate particles is just one of many adverse effects on climate change.Process for sulfur oxides removal from the flue gases in the energy and processindustries, were not important in the past, until its importance was gained. Legislation that will regulate this matter, especially in industrially developed countries, simultaneously had its growing trend. The wet limestone process is still the most common process for flue gas desulphurization, although it has had its practical use in industy, for several decades ago. Process with chemical and physical absorption and thermal regeneration of the solvent, have more and more frequent application.Absorption processes with thermal regeneration have its advantages, among them areefficiency and environmental aspects.",
publisher = "Универзитет у Београду, Технолошко-металуршки факултет",
journal = "Универзитет у Београду",
title = "Регенеративни поступци уклањања сумпор-диоксида из димних гасова - избор и одређивање термофизичких својстава нових растварача и њихових смеша и моделовање процеса, Regenerative processes of removing sulfur dioxide from flue gases - selection and determination of thermo-physical properties of new solvents and their mixtures and process modeling"
}
Živković, N. V.. (2015). Регенеративни поступци уклањања сумпор-диоксида из димних гасова - избор и одређивање термофизичких својстава нових растварача и њихових смеша и моделовање процеса. in Универзитет у Београду
Универзитет у Београду, Технолошко-металуршки факултет..
Živković NV. Регенеративни поступци уклањања сумпор-диоксида из димних гасова - избор и одређивање термофизичких својстава нових растварача и њихових смеша и моделовање процеса. in Универзитет у Београду. 2015;..
Živković, Nikola V., "Регенеративни поступци уклањања сумпор-диоксида из димних гасова - избор и одређивање термофизичких својстава нових растварача и њихових смеша и моделовање процеса" in Универзитет у Београду (2015).

Sensitivity analysis of different kinetic factors for numerical modeling of Serbian lignite devolatilization process

Jovanović, Rastko D.; Cvetinović, Dejan; Erić, Milić D.; Rasuo, Bosko; Adžić, Miroljub M.

(2014)

TY  - JOUR
AU  - Jovanović, Rastko D.
AU  - Cvetinović, Dejan
AU  - Erić, Milić D.
AU  - Rasuo, Bosko
AU  - Adžić, Miroljub M.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5955
AB  - Numerical modeling is widely used tool for prediction of combustion processes. Computational Fluid Dynamics - CFD models use three kinetic rates for description of the coal combustion processes: coal devolatilization, volatile combustion and char combustion. Reported rates for coal devolatilization vary considerably among the authors depending on the type of experimental systems used in describing the phenomenon. Accurate representation of devolatilization process is necessary in order to perform successful CFD calculations of pulverized coal combustion and gasification. The subject of this work is numerical modeling of Serbian lignite pulverized coal devolatilization in drop tube type laboratory scale reactor. The aim of this study is to evaluate the influence of different devolatilization kinetic factors on total devolatilization time in numerical modeling of pulverized Serbian lignite devolatilization. Nine different devolatilization kinetic rates mostly used in devolatilization numerical modeling are compared in the presented work. (c) 2014 Elsevier Ltd. All rights reserved.
T2  - International Journal of Heat and Mass Transfer
T1  - Sensitivity analysis of different kinetic factors for numerical modeling of Serbian lignite devolatilization process
VL  - 72
SP  - 489
EP  - 500
DO  - 10.1016/j.ijheatmasstransfer.2014.01.036
ER  - 
@article{
author = "Jovanović, Rastko D. and Cvetinović, Dejan and Erić, Milić D. and Rasuo, Bosko and Adžić, Miroljub M.",
year = "2014",
abstract = "Numerical modeling is widely used tool for prediction of combustion processes. Computational Fluid Dynamics - CFD models use three kinetic rates for description of the coal combustion processes: coal devolatilization, volatile combustion and char combustion. Reported rates for coal devolatilization vary considerably among the authors depending on the type of experimental systems used in describing the phenomenon. Accurate representation of devolatilization process is necessary in order to perform successful CFD calculations of pulverized coal combustion and gasification. The subject of this work is numerical modeling of Serbian lignite pulverized coal devolatilization in drop tube type laboratory scale reactor. The aim of this study is to evaluate the influence of different devolatilization kinetic factors on total devolatilization time in numerical modeling of pulverized Serbian lignite devolatilization. Nine different devolatilization kinetic rates mostly used in devolatilization numerical modeling are compared in the presented work. (c) 2014 Elsevier Ltd. All rights reserved.",
journal = "International Journal of Heat and Mass Transfer",
title = "Sensitivity analysis of different kinetic factors for numerical modeling of Serbian lignite devolatilization process",
volume = "72",
pages = "489-500",
doi = "10.1016/j.ijheatmasstransfer.2014.01.036"
}
Jovanović, R. D., Cvetinović, D., Erić, M. D., Rasuo, B.,& Adžić, M. M.. (2014). Sensitivity analysis of different kinetic factors for numerical modeling of Serbian lignite devolatilization process. in International Journal of Heat and Mass Transfer, 72, 489-500.
https://doi.org/10.1016/j.ijheatmasstransfer.2014.01.036
Jovanović RD, Cvetinović D, Erić MD, Rasuo B, Adžić MM. Sensitivity analysis of different kinetic factors for numerical modeling of Serbian lignite devolatilization process. in International Journal of Heat and Mass Transfer. 2014;72:489-500.
doi:10.1016/j.ijheatmasstransfer.2014.01.036 .
Jovanović, Rastko D., Cvetinović, Dejan, Erić, Milić D., Rasuo, Bosko, Adžić, Miroljub M., "Sensitivity analysis of different kinetic factors for numerical modeling of Serbian lignite devolatilization process" in International Journal of Heat and Mass Transfer, 72 (2014):489-500,
https://doi.org/10.1016/j.ijheatmasstransfer.2014.01.036 . .
5
6
6

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

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

(2014)

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

Cvetinović, Dejan

(Универзитет у Београду, Машински факултет, 2014)

TY  - THES
AU  - Cvetinović, Dejan
PY  - 2014
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=3586
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:12332/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=47443471
UR  - http://nardus.mpn.gov.rs/123456789/6235
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7295
AB  - Predmet ovog istraživanja je turbulentnoži osnosimetrični slobodni mlaz vazduha koji ističe u mirnu okolnu sredinu, fluida istih karakteristika iz mlaznica različitih konfiguracija...
AB  - The subject of this thesis is the submerged, round, unconfined turbulent axymemetric jet which issues from nozzles with different geometries and impinges to the flat heated plate positioned normally to the jet axis...
PB  - Универзитет у Београду, Машински факултет
T2  - Универзитет у Београду
T1  - Eksperimentalno i numeričko ispitivanje uticaja modifikacije turbulentnog osnosimetričnog mlaza zvučnim oscilacijama na proces prenosa toplote pri udaru o ravnu zagrejanu podlogu
T1  - Experimental and numerical investigation on influence of turbulent axisymmetric jet modification by acoustic oscillations on impiging jet heat transfer
ER  - 
@phdthesis{
author = "Cvetinović, Dejan",
year = "2014",
abstract = "Predmet ovog istraživanja je turbulentnoži osnosimetrični slobodni mlaz vazduha koji ističe u mirnu okolnu sredinu, fluida istih karakteristika iz mlaznica različitih konfiguracija..., The subject of this thesis is the submerged, round, unconfined turbulent axymemetric jet which issues from nozzles with different geometries and impinges to the flat heated plate positioned normally to the jet axis...",
publisher = "Универзитет у Београду, Машински факултет",
journal = "Универзитет у Београду",
title = "Eksperimentalno i numeričko ispitivanje uticaja modifikacije turbulentnog osnosimetričnog mlaza zvučnim oscilacijama na proces prenosa toplote pri udaru o ravnu zagrejanu podlogu, Experimental and numerical investigation on influence of turbulent axisymmetric jet modification by acoustic oscillations on impiging jet heat transfer"
}
Cvetinović, D.. (2014). Eksperimentalno i numeričko ispitivanje uticaja modifikacije turbulentnog osnosimetričnog mlaza zvučnim oscilacijama na proces prenosa toplote pri udaru o ravnu zagrejanu podlogu. in Универзитет у Београду
Универзитет у Београду, Машински факултет..
Cvetinović D. Eksperimentalno i numeričko ispitivanje uticaja modifikacije turbulentnog osnosimetričnog mlaza zvučnim oscilacijama na proces prenosa toplote pri udaru o ravnu zagrejanu podlogu. in Универзитет у Београду. 2014;..
Cvetinović, Dejan, "Eksperimentalno i numeričko ispitivanje uticaja modifikacije turbulentnog osnosimetričnog mlaza zvučnim oscilacijama na proces prenosa toplote pri udaru o ravnu zagrejanu podlogu" in Универзитет у Београду (2014).