Pregled bibliografske jedinice broj: 1114634
Thermodynamic analysis of a 17.5 MW geothermal power plant operating with binary Organic Rankine Cycle
Thermodynamic analysis of a 17.5 MW geothermal power plant operating with binary Organic Rankine Cycle // XVIII INTERNATIONAL SCIENTIFIC CONGRESS MACHINES. TECHNOLOGIES. MATERIALS - PROCEEDINGS 2021 / Popov, Georgi ; Dikova, Tsanka (ur.).
Borovets: Sofia : Scientific Technical Union of Mechanical Engineering "Industry-4.0", 2021. str. 63-66 (poster, međunarodna recenzija, cjeloviti rad (in extenso), ostalo)
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Naslov
Thermodynamic analysis of a 17.5 MW geothermal power plant operating with binary Organic Rankine Cycle
Autori
Predovan, Marko ; Blecich, Paolo
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), ostalo
Izvornik
XVIII INTERNATIONAL SCIENTIFIC CONGRESS MACHINES. TECHNOLOGIES. MATERIALS - PROCEEDINGS 2021
/ Popov, Georgi ; Dikova, Tsanka - Borovets : Sofia : Scientific Technical Union of Mechanical Engineering "Industry-4.0", 2021, 63-66
Skup
XVIII International Scientific Congress: Machines. Technologies. Materials
Mjesto i datum
Borovec, Bugarska, 10.03.2021. - 13.03.2021
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Geothermal Power Plant ; Organic Rankine Cycle ; Isobutane ; Non-Condensable Gases
Sažetak
This article presents the thermodynamic analysis of a 17.5 MW gross electric geothermal power plant based on binary cycle technology with isobutane. The geothermal power plant comprises two separate closed loops: the geothermal fluid flows in one loop and the Organic Rankine Cycle (ORC) fluid flows in the second loop. The geothermal fluid is extracted from a depth of 2500-3000 m with a temperature of 170 °C and a pressure of 25 bar. Two production wells supply geothermal fluid (brine and steam) with a high fraction of non-condensable gases (NCG). A separator extracts NCG from the geothermal fluid. Isobutane is preheated and evaporated before entering the ORC turbine with a temperature of 133 °C and a pressure of 28 bar, where expands to the condenser pressure of 4 bar. Electricity is generated by a 17.5 MW axial ORC turbine and additionally by a 1.5 MW NCG turbine. The analysis revealed that the configuration without NCG turbine achieves a net efficiency of 12.73% and a net electric power of 13.68 MW while the configuration with NCG turbine achieves a net efficiency of 14.04% and a net electric power of 15.16 MW but with much higher CO2 emissions into the atmosphere.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
