Termodinamičke osnove za proizvodnju geotermalne energije

master's thesis

• Title: Termodinamičke osnove za proizvodnju geotermalne energije : diplomski rad
• Title (english): Thermodynamic foundations for geothermal energy production : master’s thesis
• Author: Josip Ivšinović
• Mentor: Miroslav Golub (mentor)
• Committee member: Miroslav Golub
• Committee member: Tomislav Kurevija
• Committee member: Domagoj Vulin
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Petroleum and Gas Engineering and energy); Zagreb
• Defense date and country: 2011-09-23, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering; Petroleum Mining

Abstract

Analizirani su važni termodinamički parametri za proizvodnju geotermalne energije iz
niskotemperaturnih ležišta koja prevladavaju u Republici Hrvatskoj. Optimalna proizvodnja za
takva ležišta podrazumijeva korištenje binarnog ciklusa. Za optimalno iskorištenje binarnog ciklusa
važan je odabir radnog fluida koji ovisi o temperaturi geotermalnog fluida na ušću bušotine. Za
sam odabir termodinamički povoljnog radnog fluida važni su i drugi faktori. Ove faktore i
termodinamičke uvjete zadovoljava radni fluid izobutan koji se najčešće koristi u postojećim
geotermalnim postrojenjima. Eksergetska snaga i termodinamička iskoristivost binarnog ciklusa
direktno su ovisni o temperaturi geotermalnog fluida na ulazu i izlazu iz izmjenjivača topline, a
eksergetska snaga proporcionala je i protoku geotermalnog fluida. Napravljen je proračun energije i
snage mogućeg binarnog postrojenja za proizvodnju električne i toplinske energije iz vodenog
okruženja naftnog polja Beničanci. Određeno je vrijeme izotermne proizvodnje tog ležišta i analiza
osjetljivosti temperature u geotermalnom ležištu.

Abstract (english)

Abstract: Important thermodynamic parameters for production of geothermal energy from low
temperature deposits which prevail in the Republic of Croatia were analyzed. Optimal
production for these deposits implies the use of the binary cycle. The choice of working
liquid, which depends on the temperature of the geothermal fluid at the estuary of the
borehole, is important for the optimal exploitation of the binary cycle. Other factors are
also important for the choice of a thermodynamic favorable working liquid. Isobutane, a
working liquid which suits these factors and thermodynamic conditions is most often used
in existing geothermal facilities. Exergic power and thermodynamic efficiency of the
binary cycle are directly dependent on the temperature of the geothermal liquid at the
entrance and exit of the heat exchanger, and the exergic power is proportional to the flow
of the geothermal liquid. An analysis of the energy and the power of potential binary
facility for the production of electrical and thermal energy from the water environment of
the oilfield Beničanci was made. The time of the isothermal production of this deposit and
the analysis of the temperatural susceptability in the geothermal deposit were determined.

• Keywords: geotermalna energija; binarni ciklus; sekundarna radna kapljevina; termodinamički stupanj djelovanja; izotermna proizvodnja; naftno polje Beničanci
• Keywords (english): oilfield Beničanci; geothermal energy; binary cycle; secondary working liquid; thermodynamic cycle efficiency; isothermal production
• Language: croatian
• URN:NBN: urn:nbn:hr:169:813898
• Study programme: Title: Petroleum engineering; specializations in: Petroleum engineering, Energy production and supply, Environmental protection in petroleum engineering; Course: Energy production and supply; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka naftnog rudarstva (magistar/magistra inženjer/inženjerka naftnog rudarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2016-03-29 13:58:16