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Упит dcterms_subject_txt:power plants

141 items

  • 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 ...
    Toplotna pumpa, Daljinsko grejanje, Postrojenje za prečišćavanje otpadnih voda

  • Hyperpycnites within the Devonian-Carboniferous flysch of the Carpatho-Balkanides (Kostadinovica, eastern Serbia)

    Miloš Radonjić (2020)
    This study presents new discoveries of vascular plants and the trace fossil Dictyodora liebeana (GEINITZ) from the Devonian–Carboniferous Kučaj-Zvonce flysch of the Carpatho-Balkanides and the implications of this fossil association for its sedimentary setting. The occurrence of the described plant debris in a deep-marine environment indicates the presence of hyperpycnites within the siliciclastic turbidites exposed at the Kostadinovica locality. The sedimentological data and the characteristics of the fossil material support the proposed model in which the sediment was at ...
    Mississippian flora, Dictyodora liebeana (GEINITZ), hyperpycnites, Kučaj-Zvonce flysch, Carpatho-Balkanides
    ... similar palaeofloras from comparable formations, the age of the fossil plants can be determined as Early Carboniferous. This can be used as an additional biostratigraphic crite- rion given the relative abundance of vascular plants in other localities of the Kučaj-Zvonce flysch described in previous ...
    ... of Faculty of Mining and Geology, University of Belgrade (labels MRK 1–20). 3.5.1. Vascular plants An important feature of the Kostadinovica section is the abun- dance of fragments of vascular plants. Plant detritus occurs as ac- cumulations of delicate stem fragments scattered within the lower ...
    ... the fossil association of terrestrial vascular plants and the trace fos- sil Dictyodora liebeana (GEINITZ). These fossils were used to determine the age of the succession and to better constrain its sedimentary setting. Remains of vascular plants from the studied section show characteristics which ...

  • Optimising in electrical energy consumption in mining plants

    Snežana Aleksandrović, Vesna Damnjanović, Ilija Jeftenić (2018)

  • Estimation of the Remaining Life-Time of Power Transformers Depending on the Type of Loading

    Snežana Aleksandrović, Vesna Damnjanović, Ilija Jeftenić (2023)
    power transformer, load, isolation, temperature, life-time

  • The analysis of the geothermal energy capacity for power generation in Serbia

    Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk (2013)
    Renewable Energy, Sustainability and the Environment
    ... Single Cycle Geothermal Power Plants. Generation of power by the conventional steam turbine requires the working fluid temperature of no less than 150 °C. It is available only from very hot geothermal sources or with overheated water flashed to steam. (2) Binary Cycle Power Plants. Water temperature and ...
    ... and output 20 °C). A few geothermal power plants in the world use the hot spots, where the fluid temperatures are far above 150 °C, but even their engines are not perfect. According to the Energy Information Agency, the mean efficiency of the geothermal power plants in the USA is about 16% [15]. Thermal ...
    ... variation by Giggenbach. Scatters to- wards magnesium peak indicate partial equilibrium or the thermal water mixing with cold water. Power generation in binary cycle plants The amount of geothermal energy in the Earth's interior will remain billion of years there, until the sun transforms into a gigantic ...

  • Mineral Resources of Serbia: Environmental, Societal and Economic Challenges

    Vladimir Simić, Rade Jelenković, Dragana Životić (2019)
    ... hydroelectric power, Elektroprivreda Srbije, a state-owned electric utility power company, coordinates the work of 16 hydroelectric power plants, with total power of 2,835 MW, and with Đerdap and Drina-Lim hydropower plants being the most powerful. While the current hydroelectric power production ...
    ... geothermal resources, in particular for the following purposes: safe supply of industrial capacities (thermal power plants, power plants, refinery, smelting, cement and limestone plants) and the market of the Republic of Serbia with all types of mineral raw materials; application of best stat ...
    ... Amonzg these 10 are the Steel factory in Smederevo, the Nikola Tesla A and B thermal power plants in Obrenovac, the non-ferrous metallurgy plant Zorka in Šabac, the Kostolac thermal power plant and the power cable factory in Jagodina. The Bor and Sjenica mines and the Kolubara open-pit mine discharge ...

  • Mikroelementi u kvartarnim sedimentima i lignitu Kostolačko-kovinskog ugljonosnog basena, istočna Srbija – odabrani primeri

    Bogoljub Vučković, Biljana Radovanović, Dragana Životić (2022)
    Sadržaj, distribucija i način pojavljivanja elemenata u tragovima (mikroelemenata), posebno potencijalno toksičnih i radioaktivnih elemenata u uglju, su od velikog značaja, posebno ako se koriste kao gorivo u termoelektranama (TE). Na osnovu sistematski prikupljenih podataka o elementima u tragovima u uglju, zemljištu i sedimentima, moguće je utvrditi stepen zagađenosti vazduha, zemljišta, vode, kao i negativan uticaj na zdravlje ljudi. Eksploatacija i istraživanje lignita u Kostolcu i Kovinu traje više od jednog veka, dok se sagorevanje lignita sa površinskih kopa ...
    mikroelementi, sedimenti, lignit, Kostolac

  • 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
    ... Измењено: 2023-10-14 04:14:10 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 ...
    ... Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] 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 ...
    ... publications. - The Repository is available at: www.dr.rgf.bg.ac.rs minerals Article 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 1 ...

  • Komparacija metoda XRF i ICP-MS na uzorcima uglja i produkata sagorevanja

    Branko Kostić, Dejan Prelević, Sabina Kovač, Ksenija Eraković, Dragana Životić (2022)
    Ugljevi niskog ranga – ligniti u Republici Srbiji predstavljaju glavnu energetsku sirovinu koja se koristi za proizvodnju električne energije. Rudarstvo u Srbiji doprinosi bruto dodatoj vrednosti sa 1,8% (2020; https://publikacije.stat.gov.rs/). Sagorevanjem ugljeva niskog ranga u termoelektranama generišu se velike količine elektrofilterskog pepela i pepela, koje često predstavljaju jedan od izvora zagađenja životne sredine usled sadržaja toksičnih elemenata. Dalja upotreba produkata sagorevanja zavisi od njihovog sastava i sadržaja toksičnih mikroelemenata. Svakodnevno sagorevanje lignita u termoelektranama uslovljava konstantan monitoring potencijalno toksičnih ...
    ugalj, produkti sagorevanja, XRF, ICP-MS

  • State and perspective of Serbian natural gas sector development

    Ivezić Dejan, Živković Marija (2018)

  • Climate Change and the Emergence of Heavy rain, Environmental Impact, Kolubara Coal Basin, Serbia, 09-08. November, 2018., Zlatibor, Hotel Palisad

    Vucković Bogoljub, Dimitrijević Bojan (2018)

  • Environmental Energy Security Indicators as Tools for Environmental Protection

    Aleksandar Madžarević, Dejan Ivezić, Marija Živković , Miloš Tansijević (2019)
    Еколошка прихватљивост је постала незаменљив синтезни показатељ сваке валидне енергетске анализе у последње две-три деценије. Енергетска безбедност је у директној хармонији с еколошком прихватљивошћу кроз многе прописане политичке циљеве, економске користи, правне тековине итд. Индикатори еколошке сигурности представљају један од основних елемената за одређивање енергетске безбедности и снажне алате за усмеравање енергетског сектора ка одрживом развоју. У овом раду, анализа је била концентрисана на показатеље енергетске безбедности у области животне средине који се односе на сектор природног гаса у ...
    енергетска безбедност, еколошки енергетски индикатори, заштита животне средине, еколошка прихватљивост
    ... emission of particulates and ash. Industrial plants are often in sub-optimal operating modes (frequent change of load, downtime, etc.), which causes an increase in emissions. It is characteristic of the thermal power plants that the primary process of such plants is the combustion of fossil fuels for the ...
    ... scenario envisages higher consumption of natural gas compared to the Reference scenario, primarily due to projections for the construction of gas power plants for combined production of electricity and heat. For 2020, based on the projection of consumption, for the Reference and Intensive Consumption ...
    ... achieving emission reductions. 3.2.1. Sulfur oxides (SOx) Sulfur oxides cause acid rain, which has a profound effect on the living world, especially plants and soil. The sulfur oxides in the flue gases as combustion products are found because of the oxidation of sulfur, which is part of the combustion ...

  • Availability as a dimension of energy security in the Republic of Serbia

    Boban Pavlović, Dejan Ivezić (2016)
    There is a range of modern approaches and models in literature for the evaluation and determination of energy security, which are based on different parameters and indicators. For most of them, a common characteristic is emphasizing the avail ability of energy, as an important dimension for ensuring energy security. In this paper, concise overview of Serbian energy sectors is given and appropriate energy indicators are defined and determined. Selected indicators provide insight into the main components that characterize availability ...
    raspoloživost energije, energetski indikatori, energetska bezbednost
    ... distribution (TM1). Thermal power plants efficiency: 1a Gross production of electricityTM 0.34 (34%) Fossil fuel inputs = = (13) Combined heat and power plants efficiency. For the purpose of calculating the effi- ciency of energy transformation for combined heat and power plants, aggregate data of pro- ...
    ... efficiency for electricity generation (TM1a) is defined as the gross production of electricity (including own use of electricity by power plants) from fossil fuel power plants relative to fossil fuel inputs. Ration of TFC of electricity and the sum of TFC of electricity and losses is electricity transmission ...
    ... of modern thermal power plants in Europe. With additional 83.5% of electricity transmission and distribution efficiency, it leads to only 28% of total efficiency in primary energy source use. The share of renewable energy in final consumption is currently around 20%. Hydro- power and traditional biomass ...

  • Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs

    John Nyame (2024)
    The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...
    Carbon Capture, Utilization and Storage
    ... vital to attain 2050 net zero carbon emission[10]. CCUS in power generation is the use of technologies to capture CO:> from power plants. The technologies capture toxic gases and CO- from the atmosphere due to emissions from power plant generation. The challenges of these technologies are due ...
    ... Typically, power plants alone account for approximately 45 % of the worldwide CO» emissions, which thus offers significant opportunities for CCU and CCS options as main sources of captured CO-. In June 2022, 1PointFive and Carbon Engineering announced plans to deploy over 70 large scale plants by 2035 ...
    ... that can be produced by utilizing captured CO» as a feedstock [13]. The fuel produced can be used in various sectors, including fuel cells, power plants, and transportation. CO> conversion requires the application of a large amount of heat and catalyst inventory to obtain high fuel output. In ...

  • Status and tendencies under development and application of underground coal gasification-UCG

    David Petrović, Lazar Kričak, Stefan Milanović, Jovan Marković, Nikola Simić (2018)
    Podzemna gasifikacija uglja u Svetu poslednjih decenija doživljava znatnu ekspanziju u istraživanju i razvoju zbog uveliko iskorišćenih ležišta uglja i loših ekoloških efekata (pri sagorevanju u TE) na životnu okolinu. Srbija ima znatne rezerve uglja, a kada bi se za PGU koristile samo vanbilansne rezerve i otkopni ostaci bilansnih, jasno je kakvi bi bili ekonomski (a i energetski i ekološki) efekti. U radu su sagledane aktivnosti u Svetu na tom planu, pa smatramo da ima smisla i potrebe za primenu ove ...
    energetika, ugalj, ekologija, gasifikacija

  • Projecting short to medium-term effects of carbon emissions trading on Serbia's GDP

    Boban Pavlović, Nikola Trtica (2024)
    This paper presents an approach to assess the short to medium-term effects of the Emissions Trading System (ETS), an economic and climate policy instrument aimed at reducing greenhouse gas emissions, on GDP from the expenditure side. The analysis focuses on Serbia’s electricity sector, which relies heavily on lignite-based pro duction dominated by state-owned enterprises. The obtained projections suggest that in the short term, the introduction of an ETS may lead to slower GDP growth compared to official forecasts. However, ...
    ETS, BDP - rashodni pristup, cene električne energije
    ... installed capacity of power plants in Serbia amounts to 8522 MW. Within EPS, 4429 MW are installed in lignite-fueled thermal power plants, 2941 MW in hydropower plants, 330 MW in combined heat and power plants fueled by natural gas or fuel oil, and 39 MW in 18 small hydropower plants connected to the ...
    ... the distribution system (Energy Agency of the Republic of Serbia, 2023). The resource for electricity production in the EPS' thermal power plants is lignite, a domestic energy source, from the Kolubara and Kostolac mine basins (Gajić et al.., 2018). The utilization of other RESs, such as solar ...
    ... projects over the past decade. Specif- ically, the RES share of electricity production in 2022 was about 29%, with most coming from hydroelectric power plants (approximately 26%). The structure of electricity production and amounts of electricity produced in 2022 are shown in Table 1, while the structure ...

  • Uporedni prikaz proizvodnje električne energije iz uglja zemalja Evrope sa najvećim udelom: politika i projekcija proizvodnje

    Predrag Jovančić, Dragan Ignjatović, Stevan Đenadić (2022)
    Energetski razvoj zemalja Evrope decenijama je bio baziran na uglju. Instalisana snaga svih energetskih kapaciteta koji su zasnovani na uglju je preko 2000 GW. Ugalj je i dalje od bitnog značaja za dobijanje električne energije u Evropi. I pored toga što postoji veliki potencijal uglja, trend je smanjenja proizvodnje električne energije iz uglja do 2050. godine. Imajući u vidu Zelenu agendu i politiku EU, zemlje Evrope se okreću obnovljivim izvorima energije. Srbija u okviru obnovljvih izvora ima potencijala prevashodno ...
    ugalj, električna energija, 2050. godina, projekcija proizvodnje

  • Environmental flows and demands for sustainable water use in protected karst areas of the Western Balkans

    Zoran Stevanović, Aleksandra Maran Stevanović, Želimir Pekaš, Romeo Eftimi, Veljko Marinović (2021)
    Karst terrains cover some 30% of the Western Balkans, where rich karst aquifers represent the main source of potable water supply and ensure the development of local economies and tourism. In this “classical karst” region, there are also numerous sites or areas under different forms of protection—from those that are included in the UNESCO World Heritage list to natural monuments and landscapes that are protected by national legislation. In and around them are specific representatives of flora and fauna ...
    Karst, Zaštićena područja, Ekosistem, Ranjivost i održivost, Zapadni Balkan

  • Environmental flows and demands for sustainable water use in protected karst areas of the Western Balkans

    Zoran Stevanović, Aleksandra Maran Stevanović, Želimir Pekaš, Romeo Eftimi, Veljko Marinović (2022)
    Karst terrains cover some 30% of the Western Balkans, where rich karst aquifers represent the main source of potable water supply and ensure the development of local economies and tourism. In this “classical karst” region, there are also numerous sites or areas under different forms of protection—from those that are included in the UNESCO World Heritage list to natural monuments and landscapes that are protected by national legislation. In and around them are specific representatives of flora and fauna ...
    Karst, zaštićena područja, ekosistem, ranjivost i održivost, Zapadni Balkan

  • Assessments of effects of implementation of strategic plans for development of Belgrade District heating system

    Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Miodrag Grujić (2020)
    The district heating system (DHS) is one of the key elements of the Belgrade energy system. Overview of the current state and basic characteristics of the DHS are presented in this paper. The focus is on the planned development of DHS and on the analyses of effects of realization of measures and projects defined by strategic documents related to DHS which are adopted by city authorities (Development Strategy of DHS and Strategy of Belgrade Development). Two exploratory scenarios were ...
    Daljinsko grejanje, LEAP, Primarni energetski faktor, Uvozna zavisnost, CO2 emisija