Spasojević, Vuk D.

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Authority KeyName Variants
5be270de-1585-419b-bf57-1bd8fd126b10
  • Spasojević, Vuk D. (13)
  • Spasojević, Vuk (2)
Projects
Domestic Lignite Quality and Combustion Technology Enhancement for Energy Efficiency Increase and Reduction of Harmful Gases and Particulate Matter Emissions from Thermal Power Plants of Public Enterprise ”Electric Power Industry of Serbia” New industrial and environmental application of chemical thermodynamics to the development of the chemical processes with multiphase and multicomponent systems
Pollution Reduction from Thermal Power Plants of the Public Enterprise “Electric Power Industry of Serbia” Functional, Functionalized and Advanced Nanomaterials
Public health impacts in URban environments of Greenhouse gas Emissions reduction strategies Thin films of single wall carbon nanotubes and graphene for electronic application
Electroconducting and redox-active polymers and oligomers: synthesis, structure, properties and applications Size-, shape- and structure- dependent properties of nanoparticles and nanocomposites
Synthesis and characterization of novel functional polymers and polymeric nanocomposites Evaluation of energy performances and indoor environment quality of educational buildings in Serbia with impact to health
Development and improvement of technologies for energy efficient and environmentally sound use of several types of agricultural and forest biomass and possible utilization for cogeneration Physics and Chemistry with Ion Beams
Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion Ministry of Education, Science and Technological Development, Serbia
Ministry of Science and Environmental Protection, Serbia Public Enterprise Electric Power Industry of Serbia
Serbian Ministry of Education, Science

Author's Bibliography

A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim

Kalijadis, Ana; Đorđević, Jelena S.; Papp, Zsigmond; Jokić, Bojan M.; Spasojević, Vuk D.; Babić, Biljana M.; Trtić-Petrović, Tatjana M.

(2017)

TY  - JOUR
AU  - Kalijadis, Ana
AU  - Đorđević, Jelena S.
AU  - Papp, Zsigmond
AU  - Jokić, Bojan M.
AU  - Spasojević, Vuk D.
AU  - Babić, Biljana M.
AU  - Trtić-Petrović, Tatjana M.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1867
AB  - In this work, a new carbon paste electrode, prepared from nitrogen-doped hydrothermal carbon (CHTCN) was applied for the electrochemical detection and determination of carbendazim fungicide. CHTCN samples with the nominal nitrogen content 0.05-0.5 wt. % in glucose precursor were prepared by simple, low-cost synthesis with the accompanying carbonization to 1273 K. The presence of nitrogen in CHTCN samples was confirmed by elemental analysis. Characterization of CHTCN as material for carbon paste electrode was achieved by cyclic voltammetry measurement of the Fe(CN)(6)(3-/4-) redox couple. The results showed that best electrochemical response was obtained from the sample with a nominal nitrogen concentration of 0.1 wt. % and with tricresyl phosphate as a binder. During the development of a differential pulse stripping voltammetric method for carbendazim determination applying new electrode, the following experimental parameters were studied: the sort and amount of binding liquid, the effect of pH, accumulation potential and accumulation time. Under optimal conditions, the electrode offered linearity in the wide concentration range from 25 to 490 ng cm(-3) and an estimated detection limit of 1.21 ng cm(-3). Moreover, the electrode showed good stability, high selectivity and satisfactory anti-interference ability. Finally, the developed method was successfully applied for the determination of carbendazim traces in spiked tap and river water samples.
T2  - Journal of the Serbian Chemical Society
T1  - A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim
VL  - 82
IS  - 11
SP  - 1259
EP  - 1272
DO  - 10.2298/JSC161228053K
ER  - 
@article{
author = "Kalijadis, Ana and Đorđević, Jelena S. and Papp, Zsigmond and Jokić, Bojan M. and Spasojević, Vuk D. and Babić, Biljana M. and Trtić-Petrović, Tatjana M.",
year = "2017",
abstract = "In this work, a new carbon paste electrode, prepared from nitrogen-doped hydrothermal carbon (CHTCN) was applied for the electrochemical detection and determination of carbendazim fungicide. CHTCN samples with the nominal nitrogen content 0.05-0.5 wt. % in glucose precursor were prepared by simple, low-cost synthesis with the accompanying carbonization to 1273 K. The presence of nitrogen in CHTCN samples was confirmed by elemental analysis. Characterization of CHTCN as material for carbon paste electrode was achieved by cyclic voltammetry measurement of the Fe(CN)(6)(3-/4-) redox couple. The results showed that best electrochemical response was obtained from the sample with a nominal nitrogen concentration of 0.1 wt. % and with tricresyl phosphate as a binder. During the development of a differential pulse stripping voltammetric method for carbendazim determination applying new electrode, the following experimental parameters were studied: the sort and amount of binding liquid, the effect of pH, accumulation potential and accumulation time. Under optimal conditions, the electrode offered linearity in the wide concentration range from 25 to 490 ng cm(-3) and an estimated detection limit of 1.21 ng cm(-3). Moreover, the electrode showed good stability, high selectivity and satisfactory anti-interference ability. Finally, the developed method was successfully applied for the determination of carbendazim traces in spiked tap and river water samples.",
journal = "Journal of the Serbian Chemical Society",
title = "A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim",
volume = "82",
number = "11",
pages = "1259-1272",
doi = "10.2298/JSC161228053K"
}
Kalijadis, A., Đorđević, J. S., Papp, Z., Jokić, B. M., Spasojević, V. D., Babić, B. M.,& Trtić-Petrović, T. M.. (2017). A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim. in Journal of the Serbian Chemical Society, 82(11), 1259-1272.
https://doi.org/10.2298/JSC161228053K
Kalijadis A, Đorđević JS, Papp Z, Jokić BM, Spasojević VD, Babić BM, Trtić-Petrović TM. A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim. in Journal of the Serbian Chemical Society. 2017;82(11):1259-1272.
doi:10.2298/JSC161228053K .
Kalijadis, Ana, Đorđević, Jelena S., Papp, Zsigmond, Jokić, Bojan M., Spasojević, Vuk D., Babić, Biljana M., Trtić-Petrović, Tatjana M., "A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim" in Journal of the Serbian Chemical Society, 82, no. 11 (2017):1259-1272,
https://doi.org/10.2298/JSC161228053K . .
7
4
7

Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid

Panić, Vesna V.; Šešlija, Sanja; Popović, Ivanka G.; Spasojević, Vuk D.; Popović, Aleksandar R.; Nikolić, Vladimir B.; Spasojević, Pavle M.

(2017)

TY  - JOUR
AU  - Panić, Vesna V.
AU  - Šešlija, Sanja
AU  - Popović, Ivanka G.
AU  - Spasojević, Vuk D.
AU  - Popović, Aleksandar R.
AU  - Nikolić, Vladimir B.
AU  - Spasojević, Pavle M.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1873
AB  - For the preparation of fully biobased unsaturated polyester resins (UPRs), the replacement of styrene with alternate nonpetroleum-based monomers turned out to be one of the most challenging tasks. Its complexity lies in the fact that reactive diluents (RD) have to have low viscosity and volatility, good compatibility with prepolymer, and capability to homopolymerize and copolymerize with its unsaturations. In this context, we directed our efforts to develop fully biobased UPRs using the dialkyl itaconates as an alternative to styrene. Therefore, a series of 100% biobased UPRs were prepared from itaconic acid and 1,2-propandiol and diluted by dialkyl itaconates. The resins were characterized by Fourier transform infrared spectroscopy, NMR, volatility, and viscosity measurements, while the cured samples were characterized by dynamic mechanical properties, thermomechanical analysis, thermogravimetric analysis data, and tensile tests. The influence of RD structure on the properties of cured samples was discussed in detail. It was shown that the prepared resins had evaporation rates of dialkyl itaconates of several orders of magnitude less compared to styrene. The cured resins with dimethyl itaconate showed comparable or even better thermal and mechanical properties compared to the one with styrene. This investigation showed that itaconic acid and dialkyl itaconates are promising bioresources for the preparation of fully biobased UPRs for mass consumption.
T2  - Biomacromolecules
T1  - Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid
VL  - 18
IS  - 12
SP  - 3881
EP  - 3891
DO  - 10.1021/acs.biomac.7b00840
ER  - 
@article{
author = "Panić, Vesna V. and Šešlija, Sanja and Popović, Ivanka G. and Spasojević, Vuk D. and Popović, Aleksandar R. and Nikolić, Vladimir B. and Spasojević, Pavle M.",
year = "2017",
abstract = "For the preparation of fully biobased unsaturated polyester resins (UPRs), the replacement of styrene with alternate nonpetroleum-based monomers turned out to be one of the most challenging tasks. Its complexity lies in the fact that reactive diluents (RD) have to have low viscosity and volatility, good compatibility with prepolymer, and capability to homopolymerize and copolymerize with its unsaturations. In this context, we directed our efforts to develop fully biobased UPRs using the dialkyl itaconates as an alternative to styrene. Therefore, a series of 100% biobased UPRs were prepared from itaconic acid and 1,2-propandiol and diluted by dialkyl itaconates. The resins were characterized by Fourier transform infrared spectroscopy, NMR, volatility, and viscosity measurements, while the cured samples were characterized by dynamic mechanical properties, thermomechanical analysis, thermogravimetric analysis data, and tensile tests. The influence of RD structure on the properties of cured samples was discussed in detail. It was shown that the prepared resins had evaporation rates of dialkyl itaconates of several orders of magnitude less compared to styrene. The cured resins with dimethyl itaconate showed comparable or even better thermal and mechanical properties compared to the one with styrene. This investigation showed that itaconic acid and dialkyl itaconates are promising bioresources for the preparation of fully biobased UPRs for mass consumption.",
journal = "Biomacromolecules",
title = "Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid",
volume = "18",
number = "12",
pages = "3881-3891",
doi = "10.1021/acs.biomac.7b00840"
}
Panić, V. V., Šešlija, S., Popović, I. G., Spasojević, V. D., Popović, A. R., Nikolić, V. B.,& Spasojević, P. M.. (2017). Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid. in Biomacromolecules, 18(12), 3881-3891.
https://doi.org/10.1021/acs.biomac.7b00840
Panić VV, Šešlija S, Popović IG, Spasojević VD, Popović AR, Nikolić VB, Spasojević PM. Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid. in Biomacromolecules. 2017;18(12):3881-3891.
doi:10.1021/acs.biomac.7b00840 .
Panić, Vesna V., Šešlija, Sanja, Popović, Ivanka G., Spasojević, Vuk D., Popović, Aleksandar R., Nikolić, Vladimir B., Spasojević, Pavle M., "Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid" in Biomacromolecules, 18, no. 12 (2017):3881-3891,
https://doi.org/10.1021/acs.biomac.7b00840 . .
58
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57

Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites

Radoičić, Marija B.; Ćirić-Marjanović, Gordana N.; Spasojević, Vuk D.; Ahrenkiel, Scott Phillip; Mitrić, Miodrag; Novaković, Tatjana; Šaponjić, Zoran

(2017)

TY  - JOUR
AU  - Radoičić, Marija B.
AU  - Ćirić-Marjanović, Gordana N.
AU  - Spasojević, Vuk D.
AU  - Ahrenkiel, Scott Phillip
AU  - Mitrić, Miodrag
AU  - Novaković, Tatjana
AU  - Šaponjić, Zoran
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1597
AB  - A simple bottom-up method for the preparation of novel and very efficient photocatalytic nanocomposite system based on carbonized form of polyaniline (PANI) and colloidal TiO2 nanocrystals has been developed. The carbonized PANI/TiO2 nanocomposites were synthesized in a two-step procedure. Firstly, non-carbonized PANI/TiO2 nanocomposites were synthesized by the chemical oxidative polymerization of aniline (ANI) with ammonium peroxydisulfate, in the presence of colloidal TiO2 nanoparticles (TiO2 NPs) (d 4.5 nm). Initial [TiO2 NANI] mole ratios were 20, 50, and 80. In the second step, following the polymerization process, the carbonization of PANI/TiO2 nanocomposites was performed by thermal treatment in an inert atmosphere at 650 degrees C. The morphological and structural properties of the carbonized nanocomposites were studied using transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and Raman spectroscopy. The accomplishment of complete carbonization of PANI in PANI/TiO2 nanocomposites was confirmed by Raman spectroscopy. The appearance of anatase and rutile crystal forms in TiO2 NPs upon carbonization, with mass ratio depending on the initial molar ratio of ANI and TiO2 NPs was revealed by XRD measurements, TEM, SEM and Raman spectroscopy. The photocatalytic activities of carbonized PANI/TiO2 nanocomposites were evaluated following the photocatalytic degradation processes of Rhodamine B and Methylene blue. Carbonized PANI/TiO2 nanocomposites showed higher photocatalytic efficacy compared to bare TiO2 NPs and non-carbonized PANI/TiO2 nanocomposites. The porosity and surface structure of carbonized PANI/TiO2 nanocomposites, as well as crystalline structure of TiO2, affect photocatalytic activity of nanocomposites. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Applied Catalysis. B: Environmental
T1  - Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites
VL  - 213
SP  - 155
EP  - 166
DO  - 10.1016/j.apcatb.2017.05.023
ER  - 
@article{
author = "Radoičić, Marija B. and Ćirić-Marjanović, Gordana N. and Spasojević, Vuk D. and Ahrenkiel, Scott Phillip and Mitrić, Miodrag and Novaković, Tatjana and Šaponjić, Zoran",
year = "2017",
abstract = "A simple bottom-up method for the preparation of novel and very efficient photocatalytic nanocomposite system based on carbonized form of polyaniline (PANI) and colloidal TiO2 nanocrystals has been developed. The carbonized PANI/TiO2 nanocomposites were synthesized in a two-step procedure. Firstly, non-carbonized PANI/TiO2 nanocomposites were synthesized by the chemical oxidative polymerization of aniline (ANI) with ammonium peroxydisulfate, in the presence of colloidal TiO2 nanoparticles (TiO2 NPs) (d 4.5 nm). Initial [TiO2 NANI] mole ratios were 20, 50, and 80. In the second step, following the polymerization process, the carbonization of PANI/TiO2 nanocomposites was performed by thermal treatment in an inert atmosphere at 650 degrees C. The morphological and structural properties of the carbonized nanocomposites were studied using transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and Raman spectroscopy. The accomplishment of complete carbonization of PANI in PANI/TiO2 nanocomposites was confirmed by Raman spectroscopy. The appearance of anatase and rutile crystal forms in TiO2 NPs upon carbonization, with mass ratio depending on the initial molar ratio of ANI and TiO2 NPs was revealed by XRD measurements, TEM, SEM and Raman spectroscopy. The photocatalytic activities of carbonized PANI/TiO2 nanocomposites were evaluated following the photocatalytic degradation processes of Rhodamine B and Methylene blue. Carbonized PANI/TiO2 nanocomposites showed higher photocatalytic efficacy compared to bare TiO2 NPs and non-carbonized PANI/TiO2 nanocomposites. The porosity and surface structure of carbonized PANI/TiO2 nanocomposites, as well as crystalline structure of TiO2, affect photocatalytic activity of nanocomposites. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Applied Catalysis. B: Environmental",
title = "Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites",
volume = "213",
pages = "155-166",
doi = "10.1016/j.apcatb.2017.05.023"
}
Radoičić, M. B., Ćirić-Marjanović, G. N., Spasojević, V. D., Ahrenkiel, S. P., Mitrić, M., Novaković, T.,& Šaponjić, Z.. (2017). Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites. in Applied Catalysis. B: Environmental, 213, 155-166.
https://doi.org/10.1016/j.apcatb.2017.05.023
Radoičić MB, Ćirić-Marjanović GN, Spasojević VD, Ahrenkiel SP, Mitrić M, Novaković T, Šaponjić Z. Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites. in Applied Catalysis. B: Environmental. 2017;213:155-166.
doi:10.1016/j.apcatb.2017.05.023 .
Radoičić, Marija B., Ćirić-Marjanović, Gordana N., Spasojević, Vuk D., Ahrenkiel, Scott Phillip, Mitrić, Miodrag, Novaković, Tatjana, Šaponjić, Zoran, "Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites" in Applied Catalysis. B: Environmental, 213 (2017):155-166,
https://doi.org/10.1016/j.apcatb.2017.05.023 . .
63
35
61

Optimization of Active Carbonaceous Material Obtained by Low Hydrothermal Carbonization of Plane Tree Seed with H3PO4

Dodevski, Vladimir; Kaluđerović, Branka V.; Krstić, Sanja S.; Spasojević, Vuk D.; Trifunović, Snežana; Uskokovic, Petar; Marinković, Aleksandar D.; Stojmenović, Marija

(2017)

TY  - JOUR
AU  - Dodevski, Vladimir
AU  - Kaluđerović, Branka V.
AU  - Krstić, Sanja S.
AU  - Spasojević, Vuk D.
AU  - Trifunović, Snežana
AU  - Uskokovic, Petar
AU  - Marinković, Aleksandar D.
AU  - Stojmenović, Marija
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1714
AB  - Activated carbons (ACs) were successfully prepared using plane tree seed (PTS) as a cheap and renewable raw material. The plane tree seeds were firstly treated combining magnetic (MM) and ultrasonic mixing (USM) during 0.5, 1 and 3 h in 1 M, 3 M and 6 M of H3PO4 solutions, and then activated at 260 degrees C during 20 h (low temperature hydrothermal carbonization-low HTC) in above mentioned solutions of the same molarity. The influence of combined mixing and activation processes on physical, structural and morphological properties, and their optimization was studied by X-ray powder diffraction (XRPD), Raman spectroscopy, nitrogen adsorption-desorption isotherms, fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) analysis.
T2  - Journal of Nano Research
T1  - Optimization of Active Carbonaceous Material Obtained by Low Hydrothermal Carbonization of Plane Tree Seed with H3PO4
VL  - 48
SP  - 71
EP  - 84
DO  - 10.4028/www.scientific.net/JNanoR.48.71
ER  - 
@article{
author = "Dodevski, Vladimir and Kaluđerović, Branka V. and Krstić, Sanja S. and Spasojević, Vuk D. and Trifunović, Snežana and Uskokovic, Petar and Marinković, Aleksandar D. and Stojmenović, Marija",
year = "2017",
abstract = "Activated carbons (ACs) were successfully prepared using plane tree seed (PTS) as a cheap and renewable raw material. The plane tree seeds were firstly treated combining magnetic (MM) and ultrasonic mixing (USM) during 0.5, 1 and 3 h in 1 M, 3 M and 6 M of H3PO4 solutions, and then activated at 260 degrees C during 20 h (low temperature hydrothermal carbonization-low HTC) in above mentioned solutions of the same molarity. The influence of combined mixing and activation processes on physical, structural and morphological properties, and their optimization was studied by X-ray powder diffraction (XRPD), Raman spectroscopy, nitrogen adsorption-desorption isotherms, fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) analysis.",
journal = "Journal of Nano Research",
title = "Optimization of Active Carbonaceous Material Obtained by Low Hydrothermal Carbonization of Plane Tree Seed with H3PO4",
volume = "48",
pages = "71-84",
doi = "10.4028/www.scientific.net/JNanoR.48.71"
}
Dodevski, V., Kaluđerović, B. V., Krstić, S. S., Spasojević, V. D., Trifunović, S., Uskokovic, P., Marinković, A. D.,& Stojmenović, M.. (2017). Optimization of Active Carbonaceous Material Obtained by Low Hydrothermal Carbonization of Plane Tree Seed with H3PO4. in Journal of Nano Research, 48, 71-84.
https://doi.org/10.4028/www.scientific.net/JNanoR.48.71
Dodevski V, Kaluđerović BV, Krstić SS, Spasojević VD, Trifunović S, Uskokovic P, Marinković AD, Stojmenović M. Optimization of Active Carbonaceous Material Obtained by Low Hydrothermal Carbonization of Plane Tree Seed with H3PO4. in Journal of Nano Research. 2017;48:71-84.
doi:10.4028/www.scientific.net/JNanoR.48.71 .
Dodevski, Vladimir, Kaluđerović, Branka V., Krstić, Sanja S., Spasojević, Vuk D., Trifunović, Snežana, Uskokovic, Petar, Marinković, Aleksandar D., Stojmenović, Marija, "Optimization of Active Carbonaceous Material Obtained by Low Hydrothermal Carbonization of Plane Tree Seed with H3PO4" in Journal of Nano Research, 48 (2017):71-84,
https://doi.org/10.4028/www.scientific.net/JNanoR.48.71 . .

Organic solvents review for sulphur-dioxide absorption from flue gases for regenerative processes with physical absorption

Živković, Nikola; Stefanović, Predrag; Kijevčanin, Mirjana; Živković, Emila; Spasojević, Vuk

(2016)

TY  - CONF
AU  - Živković, Nikola
AU  - Stefanović, Predrag
AU  - Kijevčanin, Mirjana
AU  - Živković, Emila
AU  - Spasojević, Vuk
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12114
AB  - In addition to lime / limestone process, the most common procedure for sulfur-dioxide (SO2) removal from flue gases, separation processes with physical absorption and liquid organic solvent thermal regeneration recently gained importance. Organic liquid solvent selection, ahead of other process parameters, is crucial for process separation efficiency, in terms of the amount of SO2 absorbed by the solvent. The paper presents literature review and analysis of SO2 solubility in currently used and potential liquid organic solvents, polyethylene glycols (PEG 200 and PEG 400), tetraethylene glycol dimethyl ether (TEGDME), 1-methyl-2-pyrrolidone (NMP) as well as their binary mixtures with other components. The solvents in question bind SO2 by physical absorption mechanism, with the exception of NMP which binds SO2 by two parallel mechanisms, physical and chemical absorption. Research have even shown that mixtures of physical and chemical solvents or presence of both absorption mechanisms sometimes show better characteristics regarding binding capacity and selectivity. The importance of ionic liquids, as future solvents for separation processes, is particularly highlighted, due to their favorable thermophysical properties.
AB  - Pored najrasprostranjenijeg, krečnjačkog postupka, za uklanjnje sumpor-dioksida (SO2) iz dimnih gasova, u novije vreme sve veći značaj dobijaju separacioni postupci sa fizičkom apsorpcijom i termičkom regeneracijom tečnog organskog solventa. Izbor solventa, ispred drugih procesnih parametara, ključan je za efikasnost procesa u pogledu stepena izdvajanja SO2. U radu je dat literaturni pregled i analiza rastvoljivosti SO2 u trenutno korišćenim i potencijalnim tečnim organskim solventima, polietilen glikolima (PEG 200 i PEG 400), tetraetilen glikol dimetil etru (TEGDME), 1-metil-2-pirolidonu (NMP) i za njihove binarne smeše sa drugim komponentama. Razmatrani solventi vezuju SO2 mehanizmom fizičke apsorpcije, sa izuzetkom NMP-a kod koga su prisutna dva paralelna mehanizma, fizička i hemijska apsorpcija. Istraživanja su čak pokazala da smeše fizičkih i hemijskih solvenata ili smeše u kojima su prisutni mehanizmi i fizičke i hemijska apsorpcije ponekad pokazuju bolje karaktristike u pogledu stepena izdvajanja i selektivnosti. Posebno je istaknut značaj jonskih tečnosti kao solvenata budućnosti za separacione proces, zbog svojih povoljnih termofizičkih svojstava.
C3  - Power Plants 2016 : Proceeding of International Conference
T1  - Organic solvents review for sulphur-dioxide absorption from flue gases for regenerative processes with physical absorption
SP  - 896
EP  - 905
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12114
ER  - 
@conference{
author = "Živković, Nikola and Stefanović, Predrag and Kijevčanin, Mirjana and Živković, Emila and Spasojević, Vuk",
year = "2016",
abstract = "In addition to lime / limestone process, the most common procedure for sulfur-dioxide (SO2) removal from flue gases, separation processes with physical absorption and liquid organic solvent thermal regeneration recently gained importance. Organic liquid solvent selection, ahead of other process parameters, is crucial for process separation efficiency, in terms of the amount of SO2 absorbed by the solvent. The paper presents literature review and analysis of SO2 solubility in currently used and potential liquid organic solvents, polyethylene glycols (PEG 200 and PEG 400), tetraethylene glycol dimethyl ether (TEGDME), 1-methyl-2-pyrrolidone (NMP) as well as their binary mixtures with other components. The solvents in question bind SO2 by physical absorption mechanism, with the exception of NMP which binds SO2 by two parallel mechanisms, physical and chemical absorption. Research have even shown that mixtures of physical and chemical solvents or presence of both absorption mechanisms sometimes show better characteristics regarding binding capacity and selectivity. The importance of ionic liquids, as future solvents for separation processes, is particularly highlighted, due to their favorable thermophysical properties., Pored najrasprostranjenijeg, krečnjačkog postupka, za uklanjnje sumpor-dioksida (SO2) iz dimnih gasova, u novije vreme sve veći značaj dobijaju separacioni postupci sa fizičkom apsorpcijom i termičkom regeneracijom tečnog organskog solventa. Izbor solventa, ispred drugih procesnih parametara, ključan je za efikasnost procesa u pogledu stepena izdvajanja SO2. U radu je dat literaturni pregled i analiza rastvoljivosti SO2 u trenutno korišćenim i potencijalnim tečnim organskim solventima, polietilen glikolima (PEG 200 i PEG 400), tetraetilen glikol dimetil etru (TEGDME), 1-metil-2-pirolidonu (NMP) i za njihove binarne smeše sa drugim komponentama. Razmatrani solventi vezuju SO2 mehanizmom fizičke apsorpcije, sa izuzetkom NMP-a kod koga su prisutna dva paralelna mehanizma, fizička i hemijska apsorpcija. Istraživanja su čak pokazala da smeše fizičkih i hemijskih solvenata ili smeše u kojima su prisutni mehanizmi i fizičke i hemijska apsorpcije ponekad pokazuju bolje karaktristike u pogledu stepena izdvajanja i selektivnosti. Posebno je istaknut značaj jonskih tečnosti kao solvenata budućnosti za separacione proces, zbog svojih povoljnih termofizičkih svojstava.",
journal = "Power Plants 2016 : Proceeding of International Conference",
title = "Organic solvents review for sulphur-dioxide absorption from flue gases for regenerative processes with physical absorption",
pages = "896-905",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12114"
}
Živković, N., Stefanović, P., Kijevčanin, M., Živković, E.,& Spasojević, V.. (2016). Organic solvents review for sulphur-dioxide absorption from flue gases for regenerative processes with physical absorption. in Power Plants 2016 : Proceeding of International Conference, 896-905.
https://hdl.handle.net/21.15107/rcub_vinar_12114
Živković N, Stefanović P, Kijevčanin M, Živković E, Spasojević V. Organic solvents review for sulphur-dioxide absorption from flue gases for regenerative processes with physical absorption. in Power Plants 2016 : Proceeding of International Conference. 2016;:896-905.
https://hdl.handle.net/21.15107/rcub_vinar_12114 .
Živković, Nikola, Stefanović, Predrag, Kijevčanin, Mirjana, Živković, Emila, Spasojević, Vuk, "Organic solvents review for sulphur-dioxide absorption from flue gases for regenerative processes with physical absorption" in Power Plants 2016 : Proceeding of International Conference (2016):896-905,
https://hdl.handle.net/21.15107/rcub_vinar_12114 .

Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy

Jovanović, Svetlana P.; Syrgiannis, Zois; Marković, Zoran M.; Bonasera, Aurelio; Kepić, Dejan P.; Budimir, Milica; Milivojević, Dušan; Spasojević, Vuk D.; Dramićanin, Miroslav; Pavlović, Vladimir B.; Todorović-Marković, Biljana

(American Chemical Society, 2015)

TY  - JOUR
AU  - Jovanović, Svetlana P.
AU  - Syrgiannis, Zois
AU  - Marković, Zoran M.
AU  - Bonasera, Aurelio
AU  - Kepić, Dejan P.
AU  - Budimir, Milica
AU  - Milivojević, Dušan
AU  - Spasojević, Vuk D.
AU  - Dramićanin, Miroslav
AU  - Pavlović, Vladimir B.
AU  - Todorović-Marković, Biljana
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/839
AB  - Herein, the ability of gamma irradiation to enhance the photoluminescence properties of graphene quantum dots (GQDs) was investigated. Different doses of gamma-irradiation were used on GQDs to examine the way in which their structure and optical properties can be affected. The photoluminescence quantum yield was increased six times for the GQDs irradiated with high doses compared to the nonirradiated material. Both photoluminescence lifetime and values of optical band gap were increased with the dose of applied gamma irradiation. In addition, the exploitation of the gamma-irradiated GQDs as photosensitizers was examined by monitoring the production of singlet oxygen under UV illumination. The main outcome was that the GQDs irradiated at lower doses act as better photoproducers than the ones irradiated at higher doses. These results corroborate that the structural changes caused by gamma irradiation have a direct impact on GQD ability to produce singlet oxygen and their photostability under prolonged UV illumination. This makes low-dose irradiated GQDs promising candidates for photodynamic therapy.
PB  - American Chemical Society
T2  - ACS Applied Materials and Interfaces
T1  - Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy
VL  - 7
IS  - 46
SP  - 25865
EP  - 25874
DO  - 10.1021/acsami.5b08226
ER  - 
@article{
author = "Jovanović, Svetlana P. and Syrgiannis, Zois and Marković, Zoran M. and Bonasera, Aurelio and Kepić, Dejan P. and Budimir, Milica and Milivojević, Dušan and Spasojević, Vuk D. and Dramićanin, Miroslav and Pavlović, Vladimir B. and Todorović-Marković, Biljana",
year = "2015",
abstract = "Herein, the ability of gamma irradiation to enhance the photoluminescence properties of graphene quantum dots (GQDs) was investigated. Different doses of gamma-irradiation were used on GQDs to examine the way in which their structure and optical properties can be affected. The photoluminescence quantum yield was increased six times for the GQDs irradiated with high doses compared to the nonirradiated material. Both photoluminescence lifetime and values of optical band gap were increased with the dose of applied gamma irradiation. In addition, the exploitation of the gamma-irradiated GQDs as photosensitizers was examined by monitoring the production of singlet oxygen under UV illumination. The main outcome was that the GQDs irradiated at lower doses act as better photoproducers than the ones irradiated at higher doses. These results corroborate that the structural changes caused by gamma irradiation have a direct impact on GQD ability to produce singlet oxygen and their photostability under prolonged UV illumination. This makes low-dose irradiated GQDs promising candidates for photodynamic therapy.",
publisher = "American Chemical Society",
journal = "ACS Applied Materials and Interfaces",
title = "Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy",
volume = "7",
number = "46",
pages = "25865-25874",
doi = "10.1021/acsami.5b08226"
}
Jovanović, S. P., Syrgiannis, Z., Marković, Z. M., Bonasera, A., Kepić, D. P., Budimir, M., Milivojević, D., Spasojević, V. D., Dramićanin, M., Pavlović, V. B.,& Todorović-Marković, B.. (2015). Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy. in ACS Applied Materials and Interfaces
American Chemical Society., 7(46), 25865-25874.
https://doi.org/10.1021/acsami.5b08226
Jovanović SP, Syrgiannis Z, Marković ZM, Bonasera A, Kepić DP, Budimir M, Milivojević D, Spasojević VD, Dramićanin M, Pavlović VB, Todorović-Marković B. Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy. in ACS Applied Materials and Interfaces. 2015;7(46):25865-25874.
doi:10.1021/acsami.5b08226 .
Jovanović, Svetlana P., Syrgiannis, Zois, Marković, Zoran M., Bonasera, Aurelio, Kepić, Dejan P., Budimir, Milica, Milivojević, Dušan, Spasojević, Vuk D., Dramićanin, Miroslav, Pavlović, Vladimir B., Todorović-Marković, Biljana, "Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy" in ACS Applied Materials and Interfaces, 7, no. 46 (2015):25865-25874,
https://doi.org/10.1021/acsami.5b08226 . .
1
95
67
106

Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation

Spasojević, Jelena P.; Radosavljević, Aleksandra; Krstić, Jelena; Jovanovic, Dragutin; Spasojević, Vuk D.; Kalagasidis Krušić, Melina; Kačarević-Popović, Zorica M.

(2015)

TY  - JOUR
AU  - Spasojević, Jelena P.
AU  - Radosavljević, Aleksandra
AU  - Krstić, Jelena
AU  - Jovanovic, Dragutin
AU  - Spasojević, Vuk D.
AU  - Kalagasidis Krušić, Melina
AU  - Kačarević-Popović, Zorica M.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/697
AB  - Thermo- and pH-sensitive Ag-P(NiPAAm/IA) hydrogel nanocomposites were prepared by in situ reduction of Ag+ ions with gamma irradiation. P(NiPAAm/IA) copolymer hydrogel matrices have been previously synthesized by radiation induced copolymerization. The copolymer composition was determined by elemental analysis of the dried gels, and was found to be close to that of the feed. The dependence of swelling properties and phase transitions on the IA comonomer content, temperature, pH values and presence of AgNPs were investigated. The hydrogels showed both thermo- and pH responses. By introducing small amounts of IA, swelling capacity increase, and the volume phase transition temperature (VPIT) of P(NiPAAm/IA) copolymers is transferred to higher values. Presence of AgNPs causes decrease of equilibrium swelling degree and VPIT, and allows of fine-tuning of these properties. Both the average values of compressive elastic modulus and Youngs modulus of elasticity were decreased by addition of IA as a consequence of looser structure of the network (increase in molar mass between two neighboring crosslinks and decrease in effective crosslinking density). The introduction of AgNPs promoted not only improvement of these mechanical parameters, but an improvement of stress at failure especially in the systems with the highest content of IA. In addition, Ag-P(NiPAAm/IA) hydrogel nanocomposites showed good antibacterial potentials. (C) 2015 Elsevier Ltd. All rights reserved.
T2  - European Polymer Journal
T1  - Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation
VL  - 69
SP  - 168
EP  - 185
DO  - 10.1016/j.eurpolymj.2015.06.008
ER  - 
@article{
author = "Spasojević, Jelena P. and Radosavljević, Aleksandra and Krstić, Jelena and Jovanovic, Dragutin and Spasojević, Vuk D. and Kalagasidis Krušić, Melina and Kačarević-Popović, Zorica M.",
year = "2015",
abstract = "Thermo- and pH-sensitive Ag-P(NiPAAm/IA) hydrogel nanocomposites were prepared by in situ reduction of Ag+ ions with gamma irradiation. P(NiPAAm/IA) copolymer hydrogel matrices have been previously synthesized by radiation induced copolymerization. The copolymer composition was determined by elemental analysis of the dried gels, and was found to be close to that of the feed. The dependence of swelling properties and phase transitions on the IA comonomer content, temperature, pH values and presence of AgNPs were investigated. The hydrogels showed both thermo- and pH responses. By introducing small amounts of IA, swelling capacity increase, and the volume phase transition temperature (VPIT) of P(NiPAAm/IA) copolymers is transferred to higher values. Presence of AgNPs causes decrease of equilibrium swelling degree and VPIT, and allows of fine-tuning of these properties. Both the average values of compressive elastic modulus and Youngs modulus of elasticity were decreased by addition of IA as a consequence of looser structure of the network (increase in molar mass between two neighboring crosslinks and decrease in effective crosslinking density). The introduction of AgNPs promoted not only improvement of these mechanical parameters, but an improvement of stress at failure especially in the systems with the highest content of IA. In addition, Ag-P(NiPAAm/IA) hydrogel nanocomposites showed good antibacterial potentials. (C) 2015 Elsevier Ltd. All rights reserved.",
journal = "European Polymer Journal",
title = "Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation",
volume = "69",
pages = "168-185",
doi = "10.1016/j.eurpolymj.2015.06.008"
}
Spasojević, J. P., Radosavljević, A., Krstić, J., Jovanovic, D., Spasojević, V. D., Kalagasidis Krušić, M.,& Kačarević-Popović, Z. M.. (2015). Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation. in European Polymer Journal, 69, 168-185.
https://doi.org/10.1016/j.eurpolymj.2015.06.008
Spasojević JP, Radosavljević A, Krstić J, Jovanovic D, Spasojević VD, Kalagasidis Krušić M, Kačarević-Popović ZM. Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation. in European Polymer Journal. 2015;69:168-185.
doi:10.1016/j.eurpolymj.2015.06.008 .
Spasojević, Jelena P., Radosavljević, Aleksandra, Krstić, Jelena, Jovanovic, Dragutin, Spasojević, Vuk D., Kalagasidis Krušić, Melina, Kačarević-Popović, Zorica M., "Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation" in European Polymer Journal, 69 (2015):168-185,
https://doi.org/10.1016/j.eurpolymj.2015.06.008 . .
41
27
35

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

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

(2014)

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

Investigation of indoor and outdoor air quality of the classrooms at a school in Serbia

Jovanović, Marina P.; Vučićević, Biljana S.; Turanjanin, Valentina; Živković, Marija M.; Spasojević, Vuk D.

(2014)

TY  - JOUR
AU  - Jovanović, Marina P.
AU  - Vučićević, Biljana S.
AU  - Turanjanin, Valentina
AU  - Živković, Marija M.
AU  - Spasojević, Vuk D.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/306
AB  - The air inside schools can be more polluted than the air outside. The purpose of this study was to investigate the air quality in primary school placed in town at the east of Serbia. The characterization of air pollution concentration was performed with main goal to determine relationship between indoor and outdoor air pollution within five classrooms. The measurements were conducted continuously in indoor and outdoor environment for period of 10 days. The standard sampling and analytical methods were applied (gas chromatography coupled with mass spectrometry). This paper presents and analyses concentrations of different physical and chemical pollutants in the indoor and outdoor environment: respirable particulate matter with different diameters (up to 2.5 mu m and 10 mu m), polycyclic aromatic hydrocarbon in particulate matters up to 10 mu m, volatile organic compounds, formaldehyde, ozone, carbon-dioxide and nitric-dioxide. It was found, in one class, that the concentration of particulate matter with diameter up to 10 and 2.5 microns as well as polycyclic aromatic hydrocarbon in particulate matters up to 10 mu m were higher in indoor environment than in outdoor. The average value of formaldehyde in all classrooms was significantly higher than recommended value. On the basis of received results, extensive school renovation program can be recommended. (C) 2014 Elsevier Ltd. All rights reserved.
T2  - Energy
T1  - Investigation of indoor and outdoor air quality of the classrooms at a school in Serbia
VL  - 77
IS  - SI
SP  - 42
EP  - 48
DO  - 10.1016/j.energy.2014.03.080
ER  - 
@article{
author = "Jovanović, Marina P. and Vučićević, Biljana S. and Turanjanin, Valentina and Živković, Marija M. and Spasojević, Vuk D.",
year = "2014",
abstract = "The air inside schools can be more polluted than the air outside. The purpose of this study was to investigate the air quality in primary school placed in town at the east of Serbia. The characterization of air pollution concentration was performed with main goal to determine relationship between indoor and outdoor air pollution within five classrooms. The measurements were conducted continuously in indoor and outdoor environment for period of 10 days. The standard sampling and analytical methods were applied (gas chromatography coupled with mass spectrometry). This paper presents and analyses concentrations of different physical and chemical pollutants in the indoor and outdoor environment: respirable particulate matter with different diameters (up to 2.5 mu m and 10 mu m), polycyclic aromatic hydrocarbon in particulate matters up to 10 mu m, volatile organic compounds, formaldehyde, ozone, carbon-dioxide and nitric-dioxide. It was found, in one class, that the concentration of particulate matter with diameter up to 10 and 2.5 microns as well as polycyclic aromatic hydrocarbon in particulate matters up to 10 mu m were higher in indoor environment than in outdoor. The average value of formaldehyde in all classrooms was significantly higher than recommended value. On the basis of received results, extensive school renovation program can be recommended. (C) 2014 Elsevier Ltd. All rights reserved.",
journal = "Energy",
title = "Investigation of indoor and outdoor air quality of the classrooms at a school in Serbia",
volume = "77",
number = "SI",
pages = "42-48",
doi = "10.1016/j.energy.2014.03.080"
}
Jovanović, M. P., Vučićević, B. S., Turanjanin, V., Živković, M. M.,& Spasojević, V. D.. (2014). Investigation of indoor and outdoor air quality of the classrooms at a school in Serbia. in Energy, 77(SI), 42-48.
https://doi.org/10.1016/j.energy.2014.03.080
Jovanović MP, Vučićević BS, Turanjanin V, Živković MM, Spasojević VD. Investigation of indoor and outdoor air quality of the classrooms at a school in Serbia. in Energy. 2014;77(SI):42-48.
doi:10.1016/j.energy.2014.03.080 .
Jovanović, Marina P., Vučićević, Biljana S., Turanjanin, Valentina, Živković, Marija M., Spasojević, Vuk D., "Investigation of indoor and outdoor air quality of the classrooms at a school in Serbia" in Energy, 77, no. SI (2014):42-48,
https://doi.org/10.1016/j.energy.2014.03.080 . .
4
84
58
84

An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies

Stakic, Milan; Cvetinović, Dejan; Škobalj, Predrag D.; Spasojević, Vuk D.

(2014)

TY  - JOUR
AU  - Stakic, Milan
AU  - Cvetinović, Dejan
AU  - Škobalj, Predrag D.
AU  - Spasojević, Vuk D.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/243
AB  - Despite benefiting from vast fuel reserves, combustion of low-rank coals is commonly characterized by low thermal efficiency and high pollutant emissions, partly due to high moisture content of the coals in question. Thus, removal of moisture from low-rank coals is deemed an important quality upgrading method. The paper provides an overview of the current status of low-rank coal upgrading technologies, particularly with respect to utilization of drying and dewatering procedures. In order to examine the influence of relevant parameters on the moisture removal process, a model of convective coal drying in a packed, as well as in a fluid bed combustion arrangement, is developed and presented. Product-specific data (intraparticle mass transfer, gas-solid moisture equilibrium) related to the coal variety addressed herein (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 packed bed. Similar two-phase fluidization model has been validated for different types of biomaterials. (C) 2014 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
T2  - Chemical Engineering Research and Design
T1  - An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies
VL  - 92
IS  - 11
SP  - 2383
EP  - 2395
DO  - 10.1016/j.cherd.2014.02.032
ER  - 
@article{
author = "Stakic, Milan and Cvetinović, Dejan and Škobalj, Predrag D. and Spasojević, Vuk D.",
year = "2014",
abstract = "Despite benefiting from vast fuel reserves, combustion of low-rank coals is commonly characterized by low thermal efficiency and high pollutant emissions, partly due to high moisture content of the coals in question. Thus, removal of moisture from low-rank coals is deemed an important quality upgrading method. The paper provides an overview of the current status of low-rank coal upgrading technologies, particularly with respect to utilization of drying and dewatering procedures. In order to examine the influence of relevant parameters on the moisture removal process, a model of convective coal drying in a packed, as well as in a fluid bed combustion arrangement, is developed and presented. Product-specific data (intraparticle mass transfer, gas-solid moisture equilibrium) related to the coal variety addressed herein (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 packed bed. Similar two-phase fluidization model has been validated for different types of biomaterials. (C) 2014 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.",
journal = "Chemical Engineering Research and Design",
title = "An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies",
volume = "92",
number = "11",
pages = "2383-2395",
doi = "10.1016/j.cherd.2014.02.032"
}
Stakic, M., Cvetinović, D., Škobalj, P. D.,& Spasojević, V. D.. (2014). An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies. in Chemical Engineering Research and Design, 92(11), 2383-2395.
https://doi.org/10.1016/j.cherd.2014.02.032
Stakic M, Cvetinović D, Škobalj PD, Spasojević VD. An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies. in Chemical Engineering Research and Design. 2014;92(11):2383-2395.
doi:10.1016/j.cherd.2014.02.032 .
Stakic, Milan, Cvetinović, Dejan, Škobalj, Predrag D., Spasojević, Vuk D., "An initial study on feasible treatment of Serbian lignite through utilization of low-rank coal upgrading technologies" in Chemical Engineering Research and Design, 92, no. 11 (2014):2383-2395,
https://doi.org/10.1016/j.cherd.2014.02.032 . .
21
17
20

Densities, Refractive Indices, Viscosities, and Spectroscopic Study of 1-Amino-2-propanol+1-Butanol and+2-Butanol Solutions at (288.15 to 333.15) K

Spasojević, Vuk D.; Djordjevic, Bojan D.; Šerbanović, Slobodan P.; Radović, Ivona R.; Kijevčanin, Mirjana Lj.

(2014)

TY  - JOUR
AU  - Spasojević, Vuk D.
AU  - Djordjevic, Bojan D.
AU  - Šerbanović, Slobodan P.
AU  - Radović, Ivona R.
AU  - Kijevčanin, Mirjana Lj.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6039
AB  - Densities, refractive indices, and viscosities of 1-amino-2-propanol (monoisopropanolamine (MIPA)) + 1-butanol and 1-amino-2-propanol + 2-butanol solutions are reported over the entire range of mole fractions and the temperature range from (288.15 to 333.15) K. The Redlich-Kister relation was used for correlation of measured results of excess molar volumes, viscosities, and refractive indices as a function of temperature and composition. Partial molar volumes at infinite dilution were determined from apparent molar volumes. Negative values for excess molar volumes, refractive indices, and viscosity deviations are observed over the entire composition range. The viscosities of 1-amino-2-propanol with 1-butanol and 1-amino-2-propanol with 2-butanol are well represented by an Arrhenius equation. Activation energies for viscous flows are determined by linearization of the Arrhenius equation, providing a clear explanation of the influence on hydrogen bonding. In order to confirm molecular interactions between compounds obtained by analysis of infinite dilution of solute, a FT-IR spectroscopy study was performed at T = 298.15 K. Interactional and structural effects were investigated through calculations of excess Gibbs free energy of activation of viscous flow.
T2  - Journal of Chemical and Engineering Data
T1  - Densities, Refractive Indices, Viscosities, and Spectroscopic Study of 1-Amino-2-propanol+1-Butanol and+2-Butanol Solutions at (288.15 to 333.15) K
VL  - 59
IS  - 6
SP  - 1817
EP  - 1829
DO  - 10.1021/je401036f
ER  - 
@article{
author = "Spasojević, Vuk D. and Djordjevic, Bojan D. and Šerbanović, Slobodan P. and Radović, Ivona R. and Kijevčanin, Mirjana Lj.",
year = "2014",
abstract = "Densities, refractive indices, and viscosities of 1-amino-2-propanol (monoisopropanolamine (MIPA)) + 1-butanol and 1-amino-2-propanol + 2-butanol solutions are reported over the entire range of mole fractions and the temperature range from (288.15 to 333.15) K. The Redlich-Kister relation was used for correlation of measured results of excess molar volumes, viscosities, and refractive indices as a function of temperature and composition. Partial molar volumes at infinite dilution were determined from apparent molar volumes. Negative values for excess molar volumes, refractive indices, and viscosity deviations are observed over the entire composition range. The viscosities of 1-amino-2-propanol with 1-butanol and 1-amino-2-propanol with 2-butanol are well represented by an Arrhenius equation. Activation energies for viscous flows are determined by linearization of the Arrhenius equation, providing a clear explanation of the influence on hydrogen bonding. In order to confirm molecular interactions between compounds obtained by analysis of infinite dilution of solute, a FT-IR spectroscopy study was performed at T = 298.15 K. Interactional and structural effects were investigated through calculations of excess Gibbs free energy of activation of viscous flow.",
journal = "Journal of Chemical and Engineering Data",
title = "Densities, Refractive Indices, Viscosities, and Spectroscopic Study of 1-Amino-2-propanol+1-Butanol and+2-Butanol Solutions at (288.15 to 333.15) K",
volume = "59",
number = "6",
pages = "1817-1829",
doi = "10.1021/je401036f"
}
Spasojević, V. D., Djordjevic, B. D., Šerbanović, S. P., Radović, I. R.,& Kijevčanin, M. Lj.. (2014). Densities, Refractive Indices, Viscosities, and Spectroscopic Study of 1-Amino-2-propanol+1-Butanol and+2-Butanol Solutions at (288.15 to 333.15) K. in Journal of Chemical and Engineering Data, 59(6), 1817-1829.
https://doi.org/10.1021/je401036f
Spasojević VD, Djordjevic BD, Šerbanović SP, Radović IR, Kijevčanin ML. Densities, Refractive Indices, Viscosities, and Spectroscopic Study of 1-Amino-2-propanol+1-Butanol and+2-Butanol Solutions at (288.15 to 333.15) K. in Journal of Chemical and Engineering Data. 2014;59(6):1817-1829.
doi:10.1021/je401036f .
Spasojević, Vuk D., Djordjevic, Bojan D., Šerbanović, Slobodan P., Radović, Ivona R., Kijevčanin, Mirjana Lj., "Densities, Refractive Indices, Viscosities, and Spectroscopic Study of 1-Amino-2-propanol+1-Butanol and+2-Butanol Solutions at (288.15 to 333.15) K" in Journal of Chemical and Engineering Data, 59, no. 6 (2014):1817-1829,
https://doi.org/10.1021/je401036f . .
56
42
56

Evaluation of Kolubara Lignite Carbon Emission Characteristics

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

(2012)

TY  - JOUR
AU  - Stefanović, Predrag Lj.
AU  - Marković, Zoran J.
AU  - Bakić, Vukman
AU  - Cvetinović, Dejan
AU  - Spasojević, Vuk D.
AU  - Živković, Nikola V.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5062
AB  - The revised Intergovernmental Panel on Climate Change guidelines for national greenhouse gas inventories recommends that more comprehensive and thus more reliable characteristics of the local fossil fuels should be used for the national greenhouse gas inventory calculations. This paper deal with the carbon emission characteristics of low-calorific lignite recovered from the Kolubara open-pit mine. The samples of coal were carefully selected in order to cover the net calorific value, ash and water content of the broad spectrum of the quality of the raw lignite supplied to the Serbian thermal power plants. Correlation analysis of the laboratory analysis data gave a linear dependency of the net calorific value on the combustible content in the coal samples. Also, linear correlation between the carbon content and the net calorific value was found. The regression analysis of experimentally determined coal characteristics implies that the carbon emission factor is dependent on the net calorific value. For the subset of raw lignite samples with the net calorific value Q(d)(r) = 6-10 MJ/kg, that is most representative for current and near future use for power generation in Serbian thermal power plants, the linear dependency CEFr (tC/TJ) = 34.407 - 0.5891.Q(d)(r) MJ/kg was proposed. Regarding the net calorific ranges of samples examined, the raw Kolubara lignite carbon emission factor is considerably higher than those recommended by Intergovernmental Panel on Climate Change Tier 1 method of 27.6 tC/TJ.
T2  - Thermal Science
T1  - Evaluation of Kolubara Lignite Carbon Emission Characteristics
VL  - 16
IS  - 3
SP  - 805
EP  - 816
DO  - 10.2298/TSCI120215130S
ER  - 
@article{
author = "Stefanović, Predrag Lj. and Marković, Zoran J. and Bakić, Vukman and Cvetinović, Dejan and Spasojević, Vuk D. and Živković, Nikola V.",
year = "2012",
abstract = "The revised Intergovernmental Panel on Climate Change guidelines for national greenhouse gas inventories recommends that more comprehensive and thus more reliable characteristics of the local fossil fuels should be used for the national greenhouse gas inventory calculations. This paper deal with the carbon emission characteristics of low-calorific lignite recovered from the Kolubara open-pit mine. The samples of coal were carefully selected in order to cover the net calorific value, ash and water content of the broad spectrum of the quality of the raw lignite supplied to the Serbian thermal power plants. Correlation analysis of the laboratory analysis data gave a linear dependency of the net calorific value on the combustible content in the coal samples. Also, linear correlation between the carbon content and the net calorific value was found. The regression analysis of experimentally determined coal characteristics implies that the carbon emission factor is dependent on the net calorific value. For the subset of raw lignite samples with the net calorific value Q(d)(r) = 6-10 MJ/kg, that is most representative for current and near future use for power generation in Serbian thermal power plants, the linear dependency CEFr (tC/TJ) = 34.407 - 0.5891.Q(d)(r) MJ/kg was proposed. Regarding the net calorific ranges of samples examined, the raw Kolubara lignite carbon emission factor is considerably higher than those recommended by Intergovernmental Panel on Climate Change Tier 1 method of 27.6 tC/TJ.",
journal = "Thermal Science",
title = "Evaluation of Kolubara Lignite Carbon Emission Characteristics",
volume = "16",
number = "3",
pages = "805-816",
doi = "10.2298/TSCI120215130S"
}
Stefanović, P. Lj., Marković, Z. J., Bakić, V., Cvetinović, D., Spasojević, V. D.,& Živković, N. V.. (2012). Evaluation of Kolubara Lignite Carbon Emission Characteristics. in Thermal Science, 16(3), 805-816.
https://doi.org/10.2298/TSCI120215130S
Stefanović PL, Marković ZJ, Bakić V, Cvetinović D, Spasojević VD, Živković NV. Evaluation of Kolubara Lignite Carbon Emission Characteristics. in Thermal Science. 2012;16(3):805-816.
doi:10.2298/TSCI120215130S .
Stefanović, Predrag Lj., Marković, Zoran J., Bakić, Vukman, Cvetinović, Dejan, Spasojević, Vuk D., Živković, Nikola V., "Evaluation of Kolubara Lignite Carbon Emission Characteristics" in Thermal Science, 16, no. 3 (2012):805-816,
https://doi.org/10.2298/TSCI120215130S . .
6
7
12

Emisioni faktor lignita kolubarskog basena

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

(2011)

TY  - JOUR
AU  - Stefanović, Predrag Lj.
AU  - Marković, Zoran
AU  - Bakić, Vukman
AU  - Cvetinović, Dejan
AU  - Živković, Nikola V.
AU  - Spasojević, Vuk D.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12117
AB  - Prema međunarodno priznatoj metodologiji za procenu emisije gasova staklene bašte (The Revised 1996 IPCC Guidelines for National Greenhouse Gas Inventories - GHG), preporučeno je da se u izradi inventara GHG koriste preciznije vrednosti o karakteristikama korišćenog fosilnog goriva. U ovom radu je prikazana analiza emisionih karakteristika domaćih niskokaloričnih lignita iz površinskih kopova kolubarskog basena. Izbor analiziranih uzoraka uglja izvršen je tako da se pokrije širok opseg sadržaja pepela i vlage, donjeg toplotnog efekta i drugih karakteristika sirovog uglja, sa ciljem da reprezentuju najširi spektar očekivanih kvaliteta ugljeva koji se dopremaju u termoelektrane. Dobijeni rezultati ukazuju da postoji jasno izražena linearna zavisnost donjeg toplotnog efekta od sadržaja pepela i sadržaja vlage, odnosno od sadržaja sagorljivih materija u reprezentativnim uzorcima uglja. U radu je prikazana eksperimentalno određena zavisnost sadržaja ugljenika i emisionog faktora od donjeg toplotnog efekta. U opsegu kvaliteta rovnog lignita, emisioni faktor ima znatno veću vrednost u odnosu na standardnu međunarodno preporučenu (IPCC) fiksnu vrednost za lignit.
AB  - In accordance with the Revised 1996 IPCC Guidelines for National Greenhouse Gas Inventories, it is recommended that more precise and reliable data characteristics of the locally used fossil fuel should be introduced in GHG inventory preparation. This paper presents the evaluation of emission characteristics of low calorific Kolubara open pit mined lignite. The samples of coal were carefully selected to cover a wide range of net calorific value, ash, and moisture content, in order to ensure the coverage of wide spectra of the expected lignite qualities that are usually supplied to Serbian thermal power plants. Performed correlation analysis indicated that linear correlation between the net calorific value and the ash, moisture, and the content of combustible matter in the coal samples exists. From obtained set of results it was possible to determine the dependence between the carbon content as well as the emission factor and the net calorific value of the coal. For the range of coal with net calorific values taken in the consideration, derived correlation gives considerably higher values for the emission factor, compared to the standard IPCC recommended value for lignite.
T2  - Termotehnika
T1  - Emisioni faktor lignita kolubarskog basena
T1  - Kolubara mine lignite emission factor evaluation
VL  - 37
IS  - 2
SP  - 241
EP  - 251
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12117
ER  - 
@article{
author = "Stefanović, Predrag Lj. and Marković, Zoran and Bakić, Vukman and Cvetinović, Dejan and Živković, Nikola V. and Spasojević, Vuk D.",
year = "2011",
abstract = "Prema međunarodno priznatoj metodologiji za procenu emisije gasova staklene bašte (The Revised 1996 IPCC Guidelines for National Greenhouse Gas Inventories - GHG), preporučeno je da se u izradi inventara GHG koriste preciznije vrednosti o karakteristikama korišćenog fosilnog goriva. U ovom radu je prikazana analiza emisionih karakteristika domaćih niskokaloričnih lignita iz površinskih kopova kolubarskog basena. Izbor analiziranih uzoraka uglja izvršen je tako da se pokrije širok opseg sadržaja pepela i vlage, donjeg toplotnog efekta i drugih karakteristika sirovog uglja, sa ciljem da reprezentuju najširi spektar očekivanih kvaliteta ugljeva koji se dopremaju u termoelektrane. Dobijeni rezultati ukazuju da postoji jasno izražena linearna zavisnost donjeg toplotnog efekta od sadržaja pepela i sadržaja vlage, odnosno od sadržaja sagorljivih materija u reprezentativnim uzorcima uglja. U radu je prikazana eksperimentalno određena zavisnost sadržaja ugljenika i emisionog faktora od donjeg toplotnog efekta. U opsegu kvaliteta rovnog lignita, emisioni faktor ima znatno veću vrednost u odnosu na standardnu međunarodno preporučenu (IPCC) fiksnu vrednost za lignit., In accordance with the Revised 1996 IPCC Guidelines for National Greenhouse Gas Inventories, it is recommended that more precise and reliable data characteristics of the locally used fossil fuel should be introduced in GHG inventory preparation. This paper presents the evaluation of emission characteristics of low calorific Kolubara open pit mined lignite. The samples of coal were carefully selected to cover a wide range of net calorific value, ash, and moisture content, in order to ensure the coverage of wide spectra of the expected lignite qualities that are usually supplied to Serbian thermal power plants. Performed correlation analysis indicated that linear correlation between the net calorific value and the ash, moisture, and the content of combustible matter in the coal samples exists. From obtained set of results it was possible to determine the dependence between the carbon content as well as the emission factor and the net calorific value of the coal. For the range of coal with net calorific values taken in the consideration, derived correlation gives considerably higher values for the emission factor, compared to the standard IPCC recommended value for lignite.",
journal = "Termotehnika",
title = "Emisioni faktor lignita kolubarskog basena, Kolubara mine lignite emission factor evaluation",
volume = "37",
number = "2",
pages = "241-251",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12117"
}
Stefanović, P. Lj., Marković, Z., Bakić, V., Cvetinović, D., Živković, N. V.,& Spasojević, V. D.. (2011). Emisioni faktor lignita kolubarskog basena. in Termotehnika, 37(2), 241-251.
https://hdl.handle.net/21.15107/rcub_vinar_12117
Stefanović PL, Marković Z, Bakić V, Cvetinović D, Živković NV, Spasojević VD. Emisioni faktor lignita kolubarskog basena. in Termotehnika. 2011;37(2):241-251.
https://hdl.handle.net/21.15107/rcub_vinar_12117 .
Stefanović, Predrag Lj., Marković, Zoran, Bakić, Vukman, Cvetinović, Dejan, Živković, Nikola V., Spasojević, Vuk D., "Emisioni faktor lignita kolubarskog basena" in Termotehnika, 37, no. 2 (2011):241-251,
https://hdl.handle.net/21.15107/rcub_vinar_12117 .

Numerical simulation of coal powder fractions distribution in thermal power plant mixture channel

Živković, Nikola V.; Živković, Goran S.; Stefanović, Predrag Lj.; Cvetinović, Dejan; Spasojević, Vuk D.

(2008)

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

Нумеричка симулација продора гасовитог млаза у флуидизовани слој

Nemoda, Stevan; Belošević, Srđan; Mladenović, Milica; Dakić, Dragoljub; Stefanović, Predrag; Grubor, Borislav; Cvetinović, Dejan; Spasojević, Vuk

(2008)

TY  - JOUR
AU  - Nemoda, Stevan
AU  - Belošević, Srđan
AU  - Mladenović, Milica
AU  - Dakić, Dragoljub
AU  - Stefanović, Predrag
AU  - Grubor, Borislav
AU  - Cvetinović, Dejan
AU  - Spasojević, Vuk
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11208
AB  - У раду је предложен флуид - порозни медијум модел нумеричке симулације флуидизованог слоја (ФС), код кога се густа фаза ФС посматра као фиксни порозни медијум, а интеракција између гаса и честица, као и појава мехурасте фазе, се моделира на основу биланса сила трења између гаса и честица у густој фази ФС, узимајући у обзир интеракције између честица и ефекте судара честица. Овакав приступ моделирању ФС погодан је за брзе инжењерске прорачуне стационарног стања флуидизационог медијума у постројењима са ФС. Предложени поступак моделирања ФС је примењен на нумеричку 2-Д симулацију увођења бочног млаза флуида у ложиште са ФС, која је обухватила одређивање дужине продора млаза у ФС, као и анализу ефеката мешања млазно дозираног гасног горива са флуидизационим флуидом - оксидатором. Резултати прорачуна дужине продора бочног млаза у ФС су упоређени и верификовани са резултатима експеримената из литературе. Генерални закључак нумеричких и експерименталних анализа је да на дужину продора млаза у ФС изузетан утицај има брзина флуида на излазу из млазнице, док угао нагиба млаза, као и висина млазнице, имају далеко слабији утицај. Нумерички експерименти са интензитетом мешања компоненти (горива у млазници и оксидатора у основној струји гаса за флуидизацију), показују да утицај брзине на излазу из млазнице, као и угао нагиба млазнице, слично као код анализе дужине продора млаза у ФС, мало утичу на ниво измешаности компоненти. Међутим, приликом анализе утицаја висине увођења горива, показано је да положај млазнице по висини слоја значајно утиче на интензитет мешања хемијских компоненти у ФС, што није било могуће закључити само на основу анализе дужине продора млаза у ФС.
AB  - The paper presents a fluid-porous medium model, developed for the Purpose of fluidized bed (FB) numerical simulation. In the model, a Dense phase is considered to be a fixed porous medium, while gas-particle interactions and the occurrence of bubbling phase are modeled on the basis of a balance of friction forces between gas and particles in the dense phase, taking into account antiparticle collisions. The suggested procedure of FB modeling has been applied to a 2-D numerical simulation of lateral jet injection of fluid into the fluidized combustor. The simulation has included de termination of jet penetration length into the FB, as well as an analysis of the effects of mixing of injected gaseous fuel with fluidizing fluid - oxidizer. A general conclusion of numerical and literature experimental analyses is that jet penetration length into the FB is strongly affected by fluid velocity at the nozzle outlet, while the nozzle inclination angle, as well as the height of the nozzle as placed into the FB furnace, have by far less significant influence. However, during analyzing the impact of fuel intake height, it has been demonstrated that the nozzle vertical position along the FB has a significant influence on the mixing rate of chemical components in the FB, which could not be concluded only from the analysis of the jet penetration length into the FB.
T2  - Termotehnika
T1  - Нумеричка симулација продора гасовитог млаза у флуидизовани слој
T1  - Numerical simulation of gas jet penetration into a fluidized bed
VL  - 34
IS  - 2-3
SP  - 97
EP  - 116
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11208
ER  - 
@article{
author = "Nemoda, Stevan and Belošević, Srđan and Mladenović, Milica and Dakić, Dragoljub and Stefanović, Predrag and Grubor, Borislav and Cvetinović, Dejan and Spasojević, Vuk",
year = "2008",
abstract = "У раду је предложен флуид - порозни медијум модел нумеричке симулације флуидизованог слоја (ФС), код кога се густа фаза ФС посматра као фиксни порозни медијум, а интеракција између гаса и честица, као и појава мехурасте фазе, се моделира на основу биланса сила трења између гаса и честица у густој фази ФС, узимајући у обзир интеракције између честица и ефекте судара честица. Овакав приступ моделирању ФС погодан је за брзе инжењерске прорачуне стационарног стања флуидизационог медијума у постројењима са ФС. Предложени поступак моделирања ФС је примењен на нумеричку 2-Д симулацију увођења бочног млаза флуида у ложиште са ФС, која је обухватила одређивање дужине продора млаза у ФС, као и анализу ефеката мешања млазно дозираног гасног горива са флуидизационим флуидом - оксидатором. Резултати прорачуна дужине продора бочног млаза у ФС су упоређени и верификовани са резултатима експеримената из литературе. Генерални закључак нумеричких и експерименталних анализа је да на дужину продора млаза у ФС изузетан утицај има брзина флуида на излазу из млазнице, док угао нагиба млаза, као и висина млазнице, имају далеко слабији утицај. Нумерички експерименти са интензитетом мешања компоненти (горива у млазници и оксидатора у основној струји гаса за флуидизацију), показују да утицај брзине на излазу из млазнице, као и угао нагиба млазнице, слично као код анализе дужине продора млаза у ФС, мало утичу на ниво измешаности компоненти. Међутим, приликом анализе утицаја висине увођења горива, показано је да положај млазнице по висини слоја значајно утиче на интензитет мешања хемијских компоненти у ФС, што није било могуће закључити само на основу анализе дужине продора млаза у ФС., The paper presents a fluid-porous medium model, developed for the Purpose of fluidized bed (FB) numerical simulation. In the model, a Dense phase is considered to be a fixed porous medium, while gas-particle interactions and the occurrence of bubbling phase are modeled on the basis of a balance of friction forces between gas and particles in the dense phase, taking into account antiparticle collisions. The suggested procedure of FB modeling has been applied to a 2-D numerical simulation of lateral jet injection of fluid into the fluidized combustor. The simulation has included de termination of jet penetration length into the FB, as well as an analysis of the effects of mixing of injected gaseous fuel with fluidizing fluid - oxidizer. A general conclusion of numerical and literature experimental analyses is that jet penetration length into the FB is strongly affected by fluid velocity at the nozzle outlet, while the nozzle inclination angle, as well as the height of the nozzle as placed into the FB furnace, have by far less significant influence. However, during analyzing the impact of fuel intake height, it has been demonstrated that the nozzle vertical position along the FB has a significant influence on the mixing rate of chemical components in the FB, which could not be concluded only from the analysis of the jet penetration length into the FB.",
journal = "Termotehnika",
title = "Нумеричка симулација продора гасовитог млаза у флуидизовани слој, Numerical simulation of gas jet penetration into a fluidized bed",
volume = "34",
number = "2-3",
pages = "97-116",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11208"
}
Nemoda, S., Belošević, S., Mladenović, M., Dakić, D., Stefanović, P., Grubor, B., Cvetinović, D.,& Spasojević, V.. (2008). Нумеричка симулација продора гасовитог млаза у флуидизовани слој. in Termotehnika, 34(2-3), 97-116.
https://hdl.handle.net/21.15107/rcub_vinar_11208
Nemoda S, Belošević S, Mladenović M, Dakić D, Stefanović P, Grubor B, Cvetinović D, Spasojević V. Нумеричка симулација продора гасовитог млаза у флуидизовани слој. in Termotehnika. 2008;34(2-3):97-116.
https://hdl.handle.net/21.15107/rcub_vinar_11208 .
Nemoda, Stevan, Belošević, Srđan, Mladenović, Milica, Dakić, Dragoljub, Stefanović, Predrag, Grubor, Borislav, Cvetinović, Dejan, Spasojević, Vuk, "Нумеричка симулација продора гасовитог млаза у флуидизовани слој" in Termotehnika, 34, no. 2-3 (2008):97-116,
https://hdl.handle.net/21.15107/rcub_vinar_11208 .