SESSION: Energy resources and sustainable development | Energetski resursi i održivi razvoj
papers selected for Symposium Session titled: Energy resources and sustainable development | Energetski resursi i održivi razvoj
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Branko Jevtic, Marko Babovic, Jelena Milosevic - JP EPS, Vojvode Stepe 412, 11000 Beograd, Srbija
title: COAL AS THE STRATEGIC ENERGY RESOURCE OF ELECTRIC POWER INDUSTRY OF SERBIA
Abstract text
Significant part of installed capacities for electricity generation in Electric Power Industry of Serbia bases its operation on coal or domestic energy sources, still representing the support of the entire Serbian power system with its proven and perspective reserves. Installed capacities of coal fired thermal power plants is 3936 MW with average total annual generation of 23 400 GWh. Consequently, coal production of 32 million tons a year should be provided. Complex geological structure of EPS mining basins, physical – chemical characteristics, technological factor of lignite mining on one hand and the need of EPS thermal power capacities for stabile and continuous production of this energy source on the other hand, orient in strategic terms the need for best possible utilisation of lignite as well as efficient operation of thermal power capacities of Electric power industry of Serbia.
UGALJ STRATEŠKI ENERGENT ELEKTROPRIVREDE SRBIJE
Apstrakt: Značajan deo instalisanih kapaciteta za proizvodnju električne energije u Elektroprivredi Srbije svoj rad bazira na uglju kao domaćem energentu, koji svojim dokazanim i perspektivnim rezervama, i dalje predstavlja oslonac energetskog sistema Srbije. Instalisani kapacitet termoelektrana na ugalj je 3936 MW sa prosečnom ukupnom godišnjom proizvodnjom od 23 400 GWh/god za šta je potrebno obezbediti proizvodnju uglja od najmanje 32 mil. tona godišnje.
Složena geološka građa ugljenih basena EPS-a, fizičko-hemijske karakteristike, tehnološki faktori eksploatacije lignita sa jedne strane i potreba termoenergetskih kapaciteta EPS-a sa stabilnom i kontinuiranom proizvodnjom ovog energenta sa druge strane, strateški opredeljuju potrebu za što boljim iskorišćenjem lignitskog resursa a time i efikasnijim radom termoenergetskih kapaciteta Elektroprivrede Srbije.
Simonović V., Stekić I. - Mašinski fakultet, Univerziteta u Beogradu
title: POTENTION OF THERMOENERGETIC SYSTEMS WITH BIOMASS AS FUEL IN SERBIA
Abstract text
In paper is showing energy potention in Serbia for produce thermal energy with energies systems which use biomass as input. Especialy partitipation are given on the tracking those systems which use rigid biomass from agriculture. This biomass was stand on after harversting of agriculture plants which are in the layout of plant rests. Trationaly, its is not enlisted totally or its is not enlisted suffice and on the exactly way. Intermediary all feedstock of energy plants, in this paper are shown mostly corn-shuck as well straw because the most of area in Serbia are under corn and wheat.
POTENCIJAL TERMOENERGETSKIH SISTEMA SA BIOMASOM KAO GORIVOM U SRBIJI
REZIME
U radu su prikazani energetski potencijali Srbije u proizvodnji toplotne energije pomoću energetskih sistema koji kao ulaz koriste čvrstu biomasu. Posebna pažnja je posvećena opservaciji onih sistema koji koriste biomasu iz poljoprivrede. Ova biomasa nastaje po ubiranju poljoprivrednih kultura u vidu biljnih ostataka i tradicionalno se neiskorišćava u dovoljnoj meri ili ne na pravi način. Medju svim sirovinama energetskih postrojenja koja se dobijaju od biljnih ostataka najveća pažnja je posvećena kukurozovini i oklasku kao i slami, pošto je pod zasadima kukuruza odnosno pšenice najveći broj obradivih površina u Srbiji.
Stekić I., Simonović V. - Mašinski fakultet, Univerziteta u Beogradu
title: POTENTION AND ECONOMIC VALIDITY OF CONSTUCTIONING WIND PLANTS
Abstract text
This study has shown technical-technological potential in production of electric energy by energy systems that use wind energy. Observation of wind energy systems is managed with aspect of capital expenses, labor and maintenance, financial, production and external costs. Comparison of wind energy production costs with conventional is being shown, as like as future price tendencies. Despite deficiency of wind plants, world trends in production of electrical energy are towards theirs development, and economic validity was shown.
MOGUĆNOST PRIMENE I EKONOMSKA OPRAVDANOST IZGRADNJE VETROELEKTRANA
U radu su prikazani tehničko-tehnološki potencijali u proizvodnji električne energije pomoću energetskih sistema koji koriste energiju vetra. Izvedena je opservacija vetroelektrana sa aspekta investicionih troškova, troškova rada i održavanja, troškova finansiranja, proizvodnih i eksternih troškova. Prikazano je i poredjenje cena proizvodnje elekrične energije vetroelektrana sa konvencijalnim izvorima energije kao i buduće tendencije cena. I pored nedostataka vetroelektrana svetske tendencije u prioizvodnji električne energije usmerene su ka podsticaju njihovog razvoja, tako da je prikazana ekonomska opravdanost i isplativost.
Božo Kolonja, Dinko Knežević, Nikola Lilić - Rudarsko-geološki fakultet Univerziteta u Beogradu
title: KONCEPTUALNO REŠENJE PRIMENE DEPONIJA PRILIKOM HOMOGENIZACIJE UGLJA SA PK TAMNAVA
Abstract text
U radu je prikazan deo istraživanja na projektu nacionalnog programa energetske efikasnosti „ Implementacija sistema upravljanja kvalitetom uglja na površinskim kopovima Tamnava“ EE 21305 B koji RGF uradio u periodu 2007-2008 godina. koji se odnosi na mogućost primene deponija u procesu homogenizacije uglja na PK Tamnava.
Ranka Stanković, Božo Kolonja, Mirjana Jovanović, Olivera Kitanović, Dejan Stevanović - Rudarsko-geološki fakultet Univerziteta u Beogradu
title: DIGITAL RESOURCES FOR COAL QUALITY MANAGEMENT
Abstract text
The half of total coal reserves within Kolubara Coal Basin is of quality outside the boundaries optimal for combustion. Trough the introduction of the Coal Quality Management and Control Centre, problems cause by quality variations would be eliminated together with recovery problems caused by quality variations would be eliminated, and recovery of coal reserves increased. This paper discusses issues related to digital resources preparation for coal quality management. Geological database development, with is of paramount importance for geological modeling face, is briefly described, with some conclusion of statistical data analysis. Very important resources are survey data sets, such as digital terrain model, topology and situation maps and cartography with infrastructure and mining equipment. Short overview of geological model for Tamnava West Field, made in Minex, is given by 3D and 2D examples of structure model, together with seam modeling strategy. Description of the technological solution and conceptual information system design present our approach to coal quality management.
mr Goran Vučković, dr Mladen Stojiljković, dr Mića Vukić - Mašinski fakultet u Nišu, A. Medvedeva 14, 18000 Niš, Srbija
title: PRELIMINARNA ENERGETSKA REVIZIJA KORIŠĆENJA ELEKTRIČNE ENERGIJE U OSNOVNOJ ŠKOLI “JOVAN POPOVIĆ” U NOVOM SADU
Abstract text
U ovom radu predstavljena je preliminarna energetska revizija korišćenja električne energije u osnovnoj školi “Jovan Popović“ u Novom Sadu. U tom smislu izvršeno je snimanje stanja na terenu i prikupljeni su raspoloživi podaci iz službe računovodstva škole o utrošku energije. Prikupljeni i obrađeni podaci predstavljeni su tabelarno. U zaključku rada dat je predlog mera za uštedu električne energije kod osvetljenja sa troškom implementacije i periodom povratka investicije.
Mirko M. Stojiljković, Mladen M. Stojiljković, Bratislav D. Blagojević - University of Niš, Faculty of Mechanical Engineering, Regional Energy Efficiency Center Niš
title: PRIMARY ENERGY SAVINGS POTENTIAL IN OPTIMIZED SMALL SCALE COGENERATION PLANTS
Abstract text
Cogeneration systems, if properly designed and operated, save primary energy, because they have higher efficiencies than the efficiencies of separate production of electricity and heat and are usually much closer to the consumers, thus reducing the losses in transportation and distribution networks. One of the most important parameter for the evaluation of cogeneration plants is primary energy savings, defined in European Directive on the Promotion of Cogeneration. Reduction of primary energy consumption often results with lower degree of air pollution and economic benefits.
In this paper, primary energy savings that might be achieved with the implementation of high efficiency small scale cogeneration plant are discussed. The plant is based on the natural gas-fired reciprocating engine and absorption chiller that uses heat produced by the engine to obtain the cooling energy. The estimation is based on optimized operation winter and summer regimes of the discussed cogeneration plant. The objective function is primary energy savings, i.e. primary energy consumption.
Владан Карамарковић, Милена Ђаконовић и Анђела Лазаревић - Министарство рударства и енергетике, Краља Милана 36, 11.000 Београд
title: СТРАТЕГИЈА ПРИМЕНЕ МЕХАНИЗАМА ЧИСТОГ РАЗВОЈА НА ПРОЈЕКТЕ У СЕКТОРУ ЕНЕРГЕТИКЕ РЕПУБЛИКЕ СРБИЈЕ
Abstract text
The Republic of Serbia is the signatory of the UN Framework Convention on Climate Change and the Kyoto Protocol and it belongs to the group of Non-Annex I developing countries which do not have the obligation to reduce the GHG emission during the Kyoto Period (2008-2012) and with a possibility to use one of the flexible mechanisms of the Kyoto Protocol, the Clean Development Mechanism. Since the EU defined a new obligatory period for its members (2012 – 2020), the paperwork defines the potentials of our country for the implementation of the CDM projects. The projects will be unilateral so as to comply with our future obligations after 2012 for three different scenarios for GHG reduction.
Simeon Oka, Emilija Turković, Predrag Stefanović, Maja Đurović-Petrović - Matični naučni odbor za energetsku efikasnost Ministarstva nauke i tehnološkog razvoja Republike Srbije
title: DOPRINOS NACIONALNOG PROGRAMA ENERGETSKE EFIKASNOSTI EFIKASNOM RADU ELEKTROENERGETSKOG SISTEMA SRBIJE
Abstract text
Elektroenergetski sistem Srbije je jedan od najvećih, ako ne i najveći, i tehnološki najrazvijeniji tehnički sistem u Srbiji. U pogonu je 8 termoelektrana sa 25 blokova koje kao pogonsko gorivo koriste lignit (Nikola Tesla A 6, Nikola Tesla B 2, Kolubara 5 i Morava sa jednim blokom, zatim Kostolac A 2 i Kostolac B 2, i konačno Kosovo A 5 i B 2 bloka) i devet hidroelektrana sa pedeset hidro-agregata (Đerdap I 6, Đerdap II 10 agregata, Pirot 2, Vlasina 10, Bajina Bašta 4, RHE Bajina Bašta 2, Limske HE 8, Zvornik 4 i Elektromorava 4 agregata).
Ukupna instalirana snaga elektroenergetskih izvora je 7120 MW (3936MW u TE na lignit, 2.831 MW u HE i 353 MW u TE-TO na mazut i prirodni gas), bez termoelektrana na teritoriji Kosova i Metohije (1235 MW), koje trenutno ne rade u sastavu elektroenergetskog sistema Srbije. Sistem za prenos električne energije čini oko 10.200 km dalekovoda 400, 220 i 110 kV i oko 27 GVA instaliranih u transformatorskim stanicama, preko koga se vrši prenos električne energije proizvedene u zemlji i obavlja razmena sa susednim sistemima. Sistem za distribuciju električne energije ima mrežu dužine preko 150.000 km sa 34,318 transformatorskih stanica.
Iako je učešće instaliranog kapaciteta hidroelektrana skoro 40%, proizvodnja električne energije u termoelektranama je značajno veća. U 2007 godini u elektranama EPS-a je proizvedeno 38.897 GWh električne energije. Učešće termoelektrana u proizvodnji iznosilo je 73.20%. Na površinskim kopovima u kolubarskom i kostolačkom basenu povećana je proizvodnja na 36.506.746 tona lignita, od čega u površinskom kopu Kolubara oko 80%. Sa stanovišta proizvodnje električne energije u sistemu, proizvodnja mrkog i kamenog uglja u malim rudnicima je zanemarljiva, oko 550.000 t (ili oko 1,5%) [EPS-sait, Strategija 2015, Program ostvarivanja strategije]. Potrošačima u Srbiji je prodato 2007 godine 28.749 GWh električne energije.
Predrag M. Živković, Mića V. Vukić, Mirjana S. Laković - Mašinski fakultet Niš, ul. A. Medvedeva 14, 18000 Niš , Žarko M. Stevanović, Žana Ž. Stevanović - Institut za nuklearne nauke VINČA, Laboratorija za termotehniku i energetiku
title: WIND ATLAS OF SOUTHERN AND EASTERN SERBIA
Abstract text
In this paper Wind Atlas of Southern and Eastern Serbia is presented. It implies the determination of the best possible locations for siting of wind turbines, with the final goal of making the wind atlas of entire Serbia. In this phase, twelve mezzo models, including the test model of Seličevica are considered, which covers the mentioned areas. The simulations are mostly performed using the WasP [4] simulation software, considering the experience in dealing with the software packages available. Results shown considers the type of wind turbine, Annual Energy Production (AEP), load factor, static and dynamic economical criteria.
