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1643 items
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Evaluation of the effects of wastewater heat pump integration into district heating systems by simulation
Dejan Ivezić, Marija Živković, Dimitrije Manić, Aleksandar Madžarević, Boban Pavlović, Dušan Danilović (2023)The integration of wastewater heat pumps (using purified water) in district heating systems is analyzed in this paper. The simulation procedure is proposed to analyze the impacts of stochasticity of purified water temperature and flow to heat pump integration and operation. The analysis includes calculation of the daily and seasonal coefficient of performance, as well as fossil fuel savings and CO2 emission reduction due to wastewater heat pump use. The proposed procedure is implemented for the case study in ...Dejan Ivezić, Marija Živković, Dimitrije Manić, Aleksandar Madžarević, Boban Pavlović, Dušan Danilović. "Evaluation of the effects of wastewater heat pump integration into district heating systems by simulation" in Thermal Science, National Library of Serbia (2023). https://doi.org/10.2298/TSCI220813168I
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The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector
Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...... Tanasijević, Marija A. Živković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector | Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković ...
... Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector Aleksandar R. Madžarević *, Dejan D. Ivezić, Miloš L. Tanasijević and Marija A. Živković Faculty of Mining and Geology, University of Belgrade, Djusina 7, 11000 Belgrade, Serbia; dejan.ivezic@rgf.bg.ac.rs (D.D.I.); milos.t ...
... Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector Aleksandar R. MadiZarevié *, Dejan D. Ivezié, Milos L. Tanasijevié® and Marija A. Zivkovié Faculty of Mining and Geology, University of Belgrade, Djusina 7, 11000 Belgrade, Serbia; dejan.ivezic@rgf.bg.ac.rs (D.D.L.); milos.ta ...Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković. "The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12060908
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Basic rocks from the Povlen mountain as a building material
Srećković Batoćanin Danica, Savić Marija, Matović Nenad, Munjas Branko, Mladenović Mališa. "Basic rocks from the Povlen mountain as a building material" in Proceedings, 1st International Conference “HARMONY OF NATURE AND SPIRITUALITY IN STONE”, 17-18 March 2011, Kragujevac, Kragujevac:Stone Studio Association (2011): 185-199
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Istraživanje efikasnog sagorevanja prirodnog gasa sa povećanim sadržajem ugljendioksida
Marija Živković (2010)Marija Živković. Istraživanje efikasnog sagorevanja prirodnog gasa sa povećanim sadržajem ugljendioksida, Beograd:Rudarsko Geološki Fakultet, 2010
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Possibilities for Reduction of Energy-Related Air Pollution in Serbia - Exploring Energy Scenarios
Fossil fuels and biomass account for almost 93% of the total primary energy supply in Serbia. Meeting the energy needs of consumers implies a transformation of the chemical energy of fuels through combustion processes to obtain heat that can be utilized as such, or further transformed into mechanical or electrical energy. These processes have an undeniable impact on air pollution, even in cases of biofuels or hydrogen combustion. Possibilities for air pollution reduction are identified, both on the supply ...Marija Živković, Boban Pavlović, Dejan Ivezić, Aleksandar Mijatović. "Possibilities for Reduction of Energy-Related Air Pollution in Serbia - Exploring Energy Scenarios" in 9th International Conference Mining and Environmental Protection, 24.-27. May 2023, Sokobanja, Serbia, Belgrade, Serbia : University of Belgrade, Faculty of Mining and Geology (2023)
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Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays
... pyroclastics of the Bereketli member of the Reşadiye Formation, Reşadiye (Tokat), Turkey. Appl. Clay Sci. 2021, 204, 106024. 75. Ilić, M.; Pavlović, V.; Vukas, R.; Beljić, Č. A comparative analysis of Serbian and world classifications of mineral reserves and resources and proposals for innovation and ...
... data on solid mineral resources of the Republic of Serbia to international standards. Tehnika 2009, 60, 6–14. (In Serbian with English abstract) 66. Ilić, M.; Vukas, R. On the Harmonisation of Serbian Classification and Accompanying Regulations of Resources/Reserves of Solid Minerals with the PERC Standards; ...
... factors) but not necessarily within final pit design D2 + D1category C2 category C1 category A + B category C1 category A + B category Almost 60 years ago, the Russian school provided a simple classification of deposits by groups, without unnecessary details. According to the authors ...Vladimir Simić, Dragana Životić, Zoran Miladinović. "Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays" in Resources, MDPI AG (2021). https://doi.org/10.3390/resources10060063
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Poređenje rezultata interferometrijske analize za zemljotrese na istočnom anatolijskom rasedu od 2020. i 2023. godine
Dragan Živković (2024)Ovaj rad se bavi analizom površinskih deformacija izazvanih zemljotresima u Turskoj iz 2020. i 2023. godine korišćenjem diferencijalne satelitske radarske interferometrije (DInSAR tehnike). Cilj istraživanja bio je da se kvantifikuju i uporede deformacije terena izazvane ovim seizmičkim događajima i da se razumeju mehanizmi koji stoje iza oslobađanja seizmičke energije u regionu. Analizom DInSAR snimaka, identifikovane su različite deformacije duž rasednih zona za svaki zemljotres. Dok je zemljotres iz 2020. godine (M 6,7) izazvao lokalizovane deformacije duž Istočno anatolijskog raseda, zemljotres ...Dragan Živković. Poređenje rezultata interferometrijske analize za zemljotrese na istočnom anatolijskom rasedu od 2020. i 2023. godine, 2024
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Challenges in using wastewater heat pumps in district heating systems
Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Boban Pavlović, Dušan Danilović, Dimitrije Manić (2022)Decarbonization of district heating systems requires ensuring significant amounts of renewable energy available in the proximity of the district heating network. One of the promising solutions is the utilization of purified water from wastewater treatment plants by heat pumps. However, as a heat source, wastewater treatment plants are characterized by annual variability of the flow and temperature of purified water. The consequence is the variability of recoverable heat potential. In this paper, the effect of variability is analyzed for ...Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Boban Pavlović, Dušan Danilović, Dimitrije Manić. "Challenges in using wastewater heat pumps in district heating systems" in 20th International Conference on Thermal Science and Engineering of Serbia, Niš, Serbia, October 18 – 21, 2022, Faculty of Mechanical Engineering in Niš (2022)
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Towards a Mining Equipment Ontology
... About Function, Washington, D.C. pp. 137 - 140, 1993. [11] Stanković, R., Obradović, I., Kitanović, O., Prodanović, J., Ilić, V.: An aproach to implementation of blended learning in a university setting. In Proceedings of the Second International Conference on e- Learning, eLearning 2011, Belgrade, Serbia ...
... relation, which provides for a hierarchy among concepts as a hypernym is a more general term than its hyponym(s) and hence on a higher hierarchical level. As we have already mentioned, such hierarchical classification of concepts are taxonomies, usually represented by a tree structure. However, many ...
... generated for the FMG e-learning platform Moodle [11]. A RudOnto ontology could thus ultimately serve as a tool for generating a mining equipment ontology. In this paper we explain the initial steps towards such an ontology. In the next section we give a brief outline of terminological resources in general ...Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja. "Towards a Mining Equipment Ontology" in Proceedings of the 12th International Conference Research and Development in Mechanical Industry, RaDMI 2012, September 2012, Vrnjačka Banja, Serbia no. 1, Vrnjačka Banja, Serbia : SaTCIP (Scientific and Technical Center for Intellectual Property) Ltd. (2012)
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Building Terminological Resources in an e-Learning Environment
... Valetta, Malta, May 2010, pp.2283-2287, 2010. [11] Stanković, R., Obradović, I., Kitanović, O., Prodanović, J., Ilić, V., An aproach to implementation of blended learning in a university setting, Proceedings of the Second International Conference on e-Learning, eLearning 2011, September 2011 ...
... these concepts, and a simple reasoning mechanism related to a specific domain. Ontology A formal representation of knowledge which includes the vocabulary containing a set of concepts, semantic relationships between those concepts and simple reasoning about a certain domain RudOnto ...
... some other authors, a terminological resource qualifies for an ontology only if new knowledge can be derived from segments of knowledge already existing in the resource. According to this view. an ontology is a formal representation of knowledge, which includes a vocabulary with a set of concepts, ...Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja. "Building Terminological Resources in an e-Learning Environment" in Proceedings of the Third International Conference on e-Learning, eLearning-2012, September 2012, Belgrade, Serbia, Belgrade : Belgrade Metropolitan University (2012)
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An aproach to Implementation of blended learning in a university setting
... Conference on e-Learning (eLearning-2011) AN APPROACH TO IMPLEMENTATION OF BLENDED LEARNING IN A UNIVERSITY SETTING IVAN OBRADOVIĆ, RANKA STANKOVIĆ, OLIVERA KITANOVIĆ, JELENA PRODANOVIĆ, VESELIN ILIĆ University of Belgrade, Faculty of Mining and Geology, {ivano;ranka;olja;jelena.prodanovic;veselin ...
... contains a short definition of the term in both languages, but without any relations between equivalents. An example of a dictionary entry, in English, and then in Serbian, is: geodatabase (GDB), A collection of geographic datasets of various types held in a common file system folder, a Microsoft ...
... support system. Hence, a decision was made to introduce Moodle to the already existent blended learning system at FMG. Moodle is a free and open source (published under the GNU Public License) LMS (Learning Management System) platform. From a technical point of view, it is a web application ...Ivan Obradović, Ranka Stanković, Olivera Kitanović, Jelena Prodanović . "An aproach to Implementation of blended learning in a university setting" in Proceedings of the Second International Conference on e-Learning, eLearning 2011, September 2011, Belgrade, Serbia, Belgrade : Belgrade Metropolitan University (2011)
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Frequency and Length of Syllables in Serbian
Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová (2019)Basic analyses of several properties of syllables (the rank-frequency distribution, the distribution of length, and the relation between length and frequency) in Serbian is presented. The syllabification algorithm used combines the maximum onset principle and the sonority hierarchy. Results indicate that syllables behave similarly to words as far as mathematical models are concerned, but values of parameters in models for syllables are quite different from those for words.... level of syllable when 14 The Cyrillic alphabet follows a different order of letters, see e.g. Comrie (1996), p. 704. Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová 118 ...
... .., i.e. it is shifted here to the right by 1. 119 Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová 120 with 𝑎 = 0.3410, 𝑏 = 0.0521, and 𝐶 = 0.0050 (𝑘 is, again, a normalization constant). As several other Poisson-like ...
... Syllables in Serbian Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Frequency and Length of Syllables in Serbian | Marija Radojičić, Biljana Lazić ...Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová. "Frequency and Length of Syllables in Serbian" in Glottometrics (2019)
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Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete
Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović (2021)sagorevanje lignita, otpadna šljaka, zamena cementa, proizvodnja maltera i betona, fizičko-mehanička i fizičko-hemijska karakterizacija... Heating Plants as a Partial Replacement for Cement. Part IT: Physical—Mechanical and Physical—Chemical Characterization of Mortar and Concrete Milan Kragovic¢ 1’* Ivica Ristovié 3 and Marija Stojmenovié check for updates Citation: Kragovié, M.; Risti¢, N.; Gulicovski, J.; Nedeljkovi¢, A.; PaSali¢, S.; ...
... Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović Дигитални реп ...
... Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete | Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović | Minerals | 2021 | ...Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović . "Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete" in Minerals, MDPI (2021). https://doi.org/10.3390/min11090925
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Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites
Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković (2023)To investigate the effect of synthesis procedure and sintering temperature on the functional properties of perovskite/spinel ceramics, BaTiO3/CoFe2O4 composites were prepared by thermal decomposition, coprecipitation, and microemulsion method, and sintered at 1150°C and 1300°C. The phase composition and morphology of as-prepared powders as well as sintered ceramics were thoroughly examined by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS). The dielectric and ferroelectric measurements were performed in detail. Generally, the ...Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković. "Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites" in Science of Sintering (2023). https://doi.org/10.2298/SOS220512013S
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Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)
Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović (2014)Sphene (CaTiSiO5), a calcium titanosilicate ceramic has been prepared from a powder mixture of CaCO3, TiO2 and SiO2 using vibro-milling for homogenization and activation of precursors. During the highpressure and high-temperature synthesis (HPS) process at 4 GPa and 1,200 °C, sphene undergoes into phase transition, from room-temperature phase P21/a to high-temperature phase A2/a. Evidence of that structural phase transition is given in this paper using infrared, Raman spectroscopy and X-ray powder diffraction. Rietveld refinement was employed to get the ...Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović. "Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)" in Physics and Chemistry of Minerals, Springer Science and Business Media LLC (2014). https://doi.org/10.1007/s00269-014-0693-x
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Centar za hidrogeologiju karsta - 15 godina nauke i struke
... International Publishing, 692 pp., Cham, Heidelberg, NY, Dordrecht, London . Ristic Vakanjac, V., Stevanovic, Z., Maran Stevanović, A., Vakanjac, B., Čokorilo Ilić, M. (2014): An example of karst catchment delineation for prioritizing the protection of an intact natural area, Monograph: Hydrogeological ...
... Jiang, G., Moosdorf, N., Richts, A., Stevanović, Z., Veni, G., Goldscheider, N. (2017): The World Karst Aquifer Mapping Project — Concept, Mapping Procedure and Map o} Europe. Hydrogeology Journal, 25:771—785, https://doi.org/10.1007/s10040-016-1519-3 Čokorilo Ilić, M., Stevanović, Z., Ristić Vakanjac ...
... Environmental Farth Science, 74/1: 71-82. https://doi.org/10.1007/s12665-015- 4090-7 Ristić Vakanjac, V., Stevanović, Z., Maran Stevanović, A., Vakanjac, B., Čokorilo Ilić, M. (2015): An example of karst catchment delineation for prioritizmg the protection of an intact natural area, Environmental Farth Science ...urednici Saša Milanović, Ljiljana Vasić, Zoran Stevanović, Branislav Petrović. Centar za hidrogeologiju karsta - 15 godina nauke i struke, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, Centar za hidrogeologiju karsta, 2023
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Assessment of vulnerability of natural gas supply in Serbia: State and perspective
Madžarević Aleksandar, Ivezić Dejan, Živković Marija, Tanasijević Miloš, Ivić Milica. "Assessment of vulnerability of natural gas supply in Serbia: State and perspective" in Energy Policy 121, :Elsevier (2018): 415-425
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Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal
Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović (2018)glukoza, fruktoza, аktivni ugalj, hidrotermalni tretman, aktivacija hidroksida, teški metali, metilen plavo... Maja Pagnacco 7“, Vladimir Dodevski 1, Branka Kaluderovié 1, Milo’ Momiéilovi¢ 1, Ivica Ristovi¢ > and Marija Stojmenovi¢ 1 1 Vinéa Institute of Nuclear Sciences, University of Belgrade, Mike Petrovi¢a-Alasa 12-14, P.O. Box 522, 11000 Belgrade, Serbia; ssanjak@vin.bg.ac.rs (S.K.); vladimir@vin.bg.ac.rs ...
... with Cu Kα 1,2 radiation source (a generator voltage of 40.0 kV and a generator current of 40.0 mA). All samples were recorded in the range of 10–90◦ 2θ, with a scanning step of 0.02◦ and at a scan rate of 2◦/min. Raman spectra of activated carbons were collected on a DXR Raman microscope (Thermo Scientific ...
... Olympus optical microscope and a CCD detector, with a diode pumped solid state high-brightness laser (532 nm) and a 10× objective. The powdered sample was placed on X–Y motorized sample stage. The analysis of the scattered light was carried out by the spectrograph with a grating 900 lines/mm. The laser ...Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović . "Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal" in Minerals, MDPI (2018)
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Sinteza i karakterizacija nanoprahova u CeO2-Bi2O3 sistemu
Marija D. Prekajski (2014)Marija D. Prekajski. Sinteza i karakterizacija nanoprahova u CeO2-Bi2O3 sistemu, Beograd:Rudarsko Geološki Fakultet, 2014
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The State and Perspective of Belgrade District Heating System Development
Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Fethi Silajdžić, Samra Arnaut, Goran Đelić (2019)District heating (DH) system in Belgrade provides energy for heating of more than 21 million m2 in households (app. 50% of all households), public, commercial and industry sectors. Public Utility Company “Beogradske elektrane” is responsible for all segments of the DH system operation. The system is fueled mostly by natural gas. The share of renewables is negligible. The research analyzes effects of implementation of two main projects proposed in the Development Strategy of the PUC - the introduction of ...... Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Fethi Silajdžić, Samra Arnaut, Goran Đelić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] The State and Perspective of Belgrade District Heating System Development | Dejan Ivezić, Marija Živković, Aleksandar ...
... Serbian energy planning and policy making. The State and Perspective of Belgrade District Heating System Development Dejan Ivezić (presenter)1, Marija Živković1, Aleksandar Madžarević1, Fethi Silajdžić2, Samra Arnaut2, Goran Đelić 3 1University of Belgrade – Faculty of Mining and Geology 2 ...
... two main projects proposed in the Development Strategy of the PUC - the introduction of heat energy produced in Thermal power plant “Nikola Tesla A” (600 MW) and in CHP waste incineration plant in Vinča (56.5 MW). These projects are analyzed from energy and environmental aspects. Projections of fuel ...Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Fethi Silajdžić, Samra Arnaut, Goran Đelić . "The State and Perspective of Belgrade District Heating System Development" in 5th International Conference on Smart Energy Systems, Copenhagen : Aalborg Universitet (2019)