Претрага
3011 items
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Praćenje karakteristika ulja za podmazivanje gas-motor kompresora u toku eksploatacije sa ocenom mogućnosti primene domaćih ulja
Prvoslav Trifunović (1979)Prvoslav Trifunović. Praćenje karakteristika ulja za podmazivanje gas-motor kompresora u toku eksploatacije sa ocenom mogućnosti primene domaćih ulja, Beograd:Rudarsko-geološki fakultet, 1979
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Mogućnost korišćenјa toplotnih pumpi sa otpadnom toplotom iz postrojenјa za prečišćavanјe otpadnih voda kao toplotnim izvorom
U narednom periodu se planira izgradnja nekoliko desetina sistema za prečišćavanje otpadnih voda u većim gradovima u Srbiji. Iskustva iz postrojenja koja su trenutno u radu, pokazuju da bi prečišćena otpadna voda, s obzirom na protok i temperaturu, mogla da predstavlja značajan izvor obnovljive energije. U radu su prikazani primeri dobre prakse korišćenja ove energije u sistemima daljinskog grejanja u zemljama Evropske unije. Analiziran je rad postrojenja za prečišćavanje otpadnih voda u Šapcu i razmotrena je mogućnost njegovog korišćenja ...... sa kog se generiše otpadna voda. Toplotna energije dobijena radom toplotnih pumpi je uglavnom zamenila upotrebu nafte i uglja, pa se procenjuje da je time smanjena godišnja emisija gasova staklene bašte za 150.000 t CO2. Primer 3: Helsinski, Finska [9] Helsinki, glavni grad Finske, sa više od ...
... , ima SDG od 1953. godine. Sistem je zasnovan na kogeneraciji u kojoj se toplota dobija sagorevanjem uglja i prirodnog gasa. Međutim, sve veći udeo energije u sistemu daljinskog grejanja i hlađenja zasnovan je na resursima koji bi inače bili neiskorišćeni. U tom cilju je 2006. godine u postojeći ...
... i toplotne energije i smanjenje upotreba uglja. Emisija GHG gasova je smanjena za 12,80%. Primer 3: Štutgart, Nemačka [10] Novi poslovno-stambeni kompleks „Neckarpark“ u Štutgartu zauzima površinu od 22 ha. Otpadna toplota iz kanalizacije će se koristiti za grejanje i hlađenje oko 70.000 m2 ...Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Boban Pavlović. "Mogućnost korišćenјa toplotnih pumpi sa otpadnom toplotom iz postrojenјa za prečišćavanјe otpadnih voda kao toplotnim izvorom" in Energija, Ekonomija, Ekologija, University Library in Kragujevac (2021). https://doi.org/10.46793/EEE21-1.11I
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Application of Gel for Water Shutoff: A Case Study of Kelebija Oil Field
This paper focuses on the results of water shutoff operations using DSGA polymer gel in the Kelebija oil field. The methodology of candidate wells selection and the manner of performing the operation will also be included. The Kelebija oil field is characterized by a complex reservoir system with heterogeneous layers of different permeability and dual porosity, which led to the early breakthrough of water. For the last 25 years, average water cut was above 90%. Implementation of water shutoff ...intervención de pozos petroleros, reservoir characterization, production control, well logging, downhole intervention, enhanced recovery, complex reservoir, reservoir surveillance, water shut-off, upstream oil & gasIrina Zahirovic, Petar Skrobonja, Dušan Danilović. "Application of Gel for Water Shutoff: A Case Study of Kelebija Oil Field" in SPE Production & Operations, SPE (2022). https://doi.org/10.2118/209590-PA
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DFT study of free radical scavenging activity of erodiol
Zoran Marković, Jelena Đorović, Milan Dekić, Milanka Radulović, Svetlana Marković, Marija Ilić (2013)Antioxidant activity of erodiol was examined at the M05-2X/6-311+G(d,p) level of theory in the gas and aqueous phases. The structure and energy of radicals and anions of the most stable erodiol rotamer were analyzed. To estimate antioxidant potential of erodiol, different molecular properties were examined: bond dissociation enthalpy, proton affinity together with electron transfer energy, and ionization potential followed by proton dissociation enthalpy. It was found that hydrogen atom transfer is the prevailing mechanism of erodiol behavior in gas; ...Zoran Marković, Jelena Đorović, Milan Dekić, Milanka Radulović, Svetlana Marković, Marija Ilić. "DFT study of free radical scavenging activity of erodiol" in Chemical Papers, Springer Science and Business Media LLC (2013). https://doi.org/10.2478/s11696-013-0402-0
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Application of the PROMETHEE and VIKOR methods for selecting the most suitable carbon dioxide geological storage option
CO2 storage in geological formations is one of the leading solutions for mitigation of greenhouse gas emissions. Types of geological formations that can be used for CO2 storage, that are discussed in this paper are: depleted oil and gas reservoirs, saline aquifers and injection CO2 in partially depleted oil reservoirs for enhanced oil recovery (EOR–CO2 method). In order to select the most suitable geological storage of CO2, the ranking of these storage options was performed using two methods of ...Lola Tomić, Vesna Karović Maričić, Dušan Danilović, Branko Leković, Miroslav Crnogorac. "Application of the PROMETHEE and VIKOR methods for selecting the most suitable carbon dioxide geological storage option" in Underground Mining Engineering, Belgrade : University Of Belgrade - Faculty of Mining and Geology (2019)
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A survey of greenhouse gases production in central European lignites
Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska (2021)... Redox potential characterization and soil green- house gas concentration across a hydrological gradient in a gulf coast forest. Chemosphere 62, 905–914. https://doi.org/10.1016/j.chemosphere.2005.05.033. Životic, D., Stojanovic, K., Gržetic, I., Jovancicevic, B., Cvetkovic, O., Šajnovic, A., Simic, ...
... lignite remains largely unrecognized. Both the guidelines for national greenhouse gas inventories (Eggleston et al., 2006) and the recently updated version in- dicate that “surface mines may continue to emit methane as the gas leaks from the coal seams thatwere broken or damaged duringmining” but “there ...
... septa and aluminium cap to allow for headspace gas sampling. Measurements were conducted at 30 °C. Triplicate samples were prepared for each treatment. The concentrations of gases (CH4, CO2) during the experiment were determined using a Varian 3800 gas chromatograph equipped with flame ionization (FID ...Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska. "A survey of greenhouse gases production in central European lignites" in Science of The Total Environment, Elsevier (2021). https://doi.org/10.1016/j.scitotenv.2021.149551
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Увођење доменских и семантичких маркера за област рударства у српске електронске речнике
... +Petroleum Експлоатација нафте и гаса нафта, гас, угљоводонични флу- ид, бушотина, цевовод, динамика протока, гас лифт, гасоводни сис- тем Како би се омогућила екстракцију специфичних концепата и релација међу концептима креирањем лексичких маски, предложени су и нови семан- тички маркери ...
... минералних сировина и експлоатација нафте и гаса), које се разликују у толикој мери да оправдавају увођење додатних маркера. Поддоменски маркери би се придруживали доменском маркеру, па би тако, на пример, маркер +Mining+Surface означавао појмове који припадају домену рударства и поддомену површинска ...
... Предложен нови маркер угаљ, лигнит, мрки угаљ, камени угаљ, руда гвожђа, хематит, магнетит, руда бакра, халкопирит, ковелин, руда олова, галенит, нафта, гас, геотер- мална вода, шљунак, песак, камен +Activity Рударска активност Предложен нови маркер пројектовање рудника, минирање, бушење, екс ...Иван Обрадовић, Александра Томашевић, Ранка Станковић, Биљана Лазић. "Увођење доменских и семантичких маркера за област рударства у српске електронске речнике" in Научни састанак слависта у Вукове дане - Српски језик и његови ресурси: теорија, опис и примене, Београд : Међународни славистички центар на Филолошком факултету, Филолошки факултет (2017). https://doi.org/10.18485/msc.2017.46.3.ch10
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Development and evaluation of fracture gradient curve model: a case study of south-central Kazakhstan
An accurate fracture gradient value is one of the most important issues in oil and gas well design and drilling. The value of a fracture gradient is a critical parameter for determining the drilling mud weight and selecting the proper depths for setting the casing in the planning process of drilling operations. This paper proposed the new curve model of fracture gradient for the south-central Kazakhstan (central Asia) region based on the analysis of leak-off test and format integrity ...Branimir Stanisavljevic, Vesna Karovic Maricic, Irena Isakov. "Development and evaluation of fracture gradient curve model: a case study of south-central Kazakhstan" in International Journal of Oil, Gas and Coal Technology, Inderscience Publishers (2022). https://doi.org/10.1504/IJOGCT.2023.128042
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Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu
Nikoleta Aleksić (2021)... najznačajniji prostor u Srbiji. (Petrović i sarad., 2012). Uljni šejlovi su finozrne sedimentne stene tipa glinaca, laporaca i krečnjaka, koje pri zagrevanju na visokim temperaturama (oko 500 0C) daju tečne ugljovodonike, veoma slične sirovoj nafti, kao i nešto gasa. Uljni šejlovi sadrže kerogen, disperznu ...
... sredinu područja u kom se nalazi ležište. Literatura: KOSTIĆ. A. (2015). Ležišta i istraživanje nafte i gasa. Udžbenik, 224-226. Rudarsko-geološki fakultet, Univerziteta u Beogradu. PETROVIĆ. M., i saradnici, 2012: Elaborat o rezervama uljnih škriljaca “Aleksinac” – polje “Dubrava” (JP ...
... 2021. OR-10 Hg, Mn, Ni, Pb, Sb, Se) i radioaktivnih su od velikog značaja za zaštitu životne sredine. Na osnovu ovih podataka može se predvideti stepen zagađenja vazduha, zemljišta i vode tokom eksploatacije i kasnije proizvodnje nafte iz uljnih šejlova, kao i negativan uticaj na zdravlje ljudi. ...Nikoleta Aleksić. "Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu" in VIII Memorijalni naučni skup iz zaštite životne sredine „Docent dr Milena Dalmacija“, 2021, Prirodno-matematički fakultet, Novi Sad (2021)
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Gasno ležište Itebej g3" u funkciji podzemnog skladišta gasa"
Dragan Jovičić (2009)Dragan Jovičić. Gasno ležište Itebej g3" u funkciji podzemnog skladišta gasa", Beograd:Rudarsko-geološki fakultet, 2009
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Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal
Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)... 71. Rieley, G.; Collister, J.W.; Stern, B.; Eglinton, G. Gas chromatography-isotope ratio mass spectrometry dioxide metabolisms. Rapid Commun. Mass Spectrom. 1993, 7, 488–491. [CrossRef] 72. Van Aarssen, B.G.; Bastow, T.P.; Alexander, R.; I Kagi, R. Distributions of methylated naphthalenes in crude ...
... es, their further degradation into gas is favoured. The yield of gas obtained by co-pyrolysis of lignite/HDPE is obviously higher than the yield of gas obtained by pyrolysis of HDPE at 400, 450, and 500 ◦C, whereas it is opposite at 550 and 600 ◦C. The yield of gas is lower in the co-pyrolysis experiment ...
... of 25 can significantly improve the quality of the gas composition in comparison with gas produced from lignite alone, which is primarily reflected through the elevated content of hydrocarbons. Although TGA-FTIR thermograms enable the qualitative gas composition assessment only, the obtained results are ...Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović. "Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal" in Polymers, MDPI AG (2021). https://doi.org/10.3390/polym13050759
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2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem
... 45-60% of the total emitted gas from a landfill, carbon-dioxide takes the rest 40-60% leaving just around 1% to other gases (Marković and Stevović, 2016). The presence of water vapor 74 Sretenović B., Arnaut F., Vasiljević I., Cvetkov V. can speed up the process of gas production. This is of great ...
... (2016) The process of creation and analysis of the landfill gas from the landfill in the region of Pchinja. Journal on Processing and Energy in Agriculture, 20, pp. 63-68. https://earth.google.com/web 76 Sretenović B., Arnaut F., Vasiljević I., Cvetkov V. MITROVIĆ, S. (2014) Applied Ecology- guidebook ...
... in landfills, such as production of benzene, toluene and ethyl-benzene in gas or leachate form. There is evidence that PET disposal can lead to the upsurge of hydrogen-sulfide concentrations (potentially deathly gas in higher concentration values)by sulfide-reducing bacteria (Webb et al., 2013) ...Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov. "2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem" in Podzemni radovi, Centre for Evaluation in Education and Science (CEON/CEES) (2019). https://doi.org/10.5937/PodRad1934059S
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Synergistic Effect of the Insulation Characteristics of Gas Mixtures under the Influence of Pulse Voltages
Kartalović Nenad, Stanković Koviljka, Aleksandrović Snežana, Brajović Dragan. "Synergistic Effect of the Insulation Characteristics of Gas Mixtures under the Influence of Pulse Voltages" in IEEE Transactions on Dielectrics and Electrical Insulation 23 no. 6, :IEEE-Inst Eletrctrical Electronics Engineers Inc (2017): 3311-3318. https://doi.org/10.1109/TDEI.2016.005871
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Model otvaranja ležišta nafte u funkciji karakteristika kolektor stena
Mišo Soleša (1993)Mišo Soleša. Model otvaranja ležišta nafte u funkciji karakteristika kolektor stena, Beograd:Rudarsko Geološki Fakultet, 1993
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Prikaz sanacije flotacijskog jalovišta Veliki Majdan nakon akcidenta
Kostović Milena, Vlajić Dijana, Kostović Nebojša, Mitić Saša. "Prikaz sanacije flotacijskog jalovišta Veliki Majdan nakon akcidenta" in Zbornik radova I Simpozijuma: Odsumporavanje dimnih gasova i IV Savetovanja: Deponije pepela, šljake i jalovine u termoelektranama i rudnicima sa međunarodnim učešćem, Palić, Srbija:Privredna komora Srbije (2012): 299-302
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Rift sequence stratigraphy and its contribution to source rock understanding – Serbian part of Pannonian Basin
Filip Anđelković, Dejan Radivojević (2018)... Tertiary, while the Lower Pontian shales were found to contain only gas-prone source rocks (Kostić, 2012). Since the Sarmatian sediments are mostly missing or have very restricted thickness in depressions close to the biggest oil and gas fields in Serbia (Ivanišević and Radivojević, 2018; Radivojević ...
... Lučić, D., Saftić, B., Krizmanić, K., Prelogović, E., Britvić, V., Mesić, I., Tadej, J. 2001. The Neogene evolution and hydrocarbon potential of the Pannonian Basin in Croatia. Marine and Petroleum Geology 18, 133–147. Magyar, I., Fogarasi, A., Vakarcs, G., Bukó, L., Tari, G.C. 2006. The largest hydrocarbon ...
... http://dr.rgf.bg.ac.rs/s/repo/item/0005441 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених доступним у слободном приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University ...Filip Anđelković, Dejan Radivojević. "Rift sequence stratigraphy and its contribution to source rock understanding – Serbian part of Pannonian Basin" in CBGA, Salzburg, Austria, Septembar 10-13, 2018, Bulgarian Academy of Science (2018)
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Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels
Irina Zahirovic, Dušan Danilović, Milica Šuput Vranjin, Miloš Tripković. "Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels" in SPE Journal (2023)
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Техничка дијагностика
Предраг Јованчић (2020)Предраг Јованчић. Техничка дијагностика, Београд : Универзитет у Београду, Рударско-геолошки факултет, 2020
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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 ...... 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 ...
... http://dr.rgf.bg.ac.rs/s/repo/item/0005047 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених доступним у слободном приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University ...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)
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Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae
Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović (2019)Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using NMRspectroscopy as cis- and trans-dehydroicetexane. Both have a 9(10?20)-abeo-abietane or icetexane skeleton, consisting of a 6-7-6 tricyclic framework with seven carbons in ring B instead of the usual six in common diterpanes of the abietane-type. Dehydroicetexanes can be detected using GC-MS-MS in m/z 270?146 chromatograms without interference from dehydroabietane or other isomers. Dehydroicetexanes are often abundant ...Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović. "Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae" in Organic Geochemistry, Elsevier BV (2019). https://doi.org/10.1016/j.orggeochem.2019.01.001