Thermodynamic analysis and optimization of a transcritical CO2 geothermal power generation system based on the cold energy utilization of LNG

• Published in: Applied thermal engineering Vol. 70; no. 1; pp. 531 - 540
• Main Authors: Wang, Jianyong, Wang, Jiangfeng, Dai, Yiping, Zhao, Pan
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 05.09.2014; Elsevier
• Subjects: Applied sciences; Energy; Energy. Thermal use of fuels; Exact sciences and technology; Geothermal energy; Geothermal resource; Heat transfer; Liquefied natural gas; Natural energy; Optimization; Theoretical studies. Data and constants. Metering; Transcritical CO2 cycle; Liquefied natural gas; Geothermal resource; Optimization; Transcritical CO2 cycle; Cold; LNG; Power production; Geothermal energy; Carbon dioxide; Thermodynamic analysis; Electric power production; cycle; Transcritical CO

This paper investigates a transcritical CO2 cycle using geothermal resources to generate electricity. Liquefied natural gas (LNG) is employed as heat sink to drop the CO2 turbine back pressure sharply. The mathematical model of the transcritical CO2 geothermal power generation system is established...