Selection of working fluids for a novel low-temperature geothermally-powered ORC based cogeneration system

作者: T. Guo , H.X. Wang , S.J. Zhang

DOI: 10.1016/J.ENCONMAN.2010.12.038

关键词:

摘要: A novel cogeneration system driven by low-temperature geothermal sources was investigated in this study. This consists of a geothermally-powered organic Rankine cycle (ORC) subsystem, an intermediate heat exchanger and commercial R134a-based pump subsystem. The main purpose is to identify appropriate fluids which may yield high PPR (the ratio power produced the generation subsystem consumed subsystem) value QQR supplied user source) value. Performances under disturbance conditions have also been studied. Results indicate that group presenting higher normal boiling point values shows averagely 7.7% R236ea R245ca outstand among group. ΔTP (pinch temperature difference exchangers) ηt (turbine efficiency) play more important roles on variation values. change slightly with various ΔTP, ηrp (refrigerant while range larger source heating supply parameters. Smaller value, parameters lower lead but

参考文章(20)
X. R. Zhang, Experimental Performance Analysis of Supercritical CO2 Thermodynamic Cycle Powered by Solar Energy FLOW DYNAMICS: The Second International Conference on Flow Dynamics. ,vol. 832, pp. 419- 424 ,(2006) , 10.1063/1.2204534
X. R. Zhang, H. Yamaguchi, D. Uneno, Thermodynamic analysis of the CO2-based Rankine cycle powered by solar energy International Journal of Energy Research. ,vol. 31, pp. 1414- 1424 ,(2007) , 10.1002/ER.1304
Bo-Tau Liu, Kuo-Hsiang Chien, Chi-Chuan Wang, Effect of working fluids on organic Rankine cycle for waste heat recovery Energy. ,vol. 29, pp. 1207- 1217 ,(2004) , 10.1016/J.ENERGY.2004.01.004
N. Sawada, X.R. Zhang, H. Yamaguchi, K. Fujima, M. Enomoto, Theoretical analysis of a thermodynamic cycle for power and heat production using supercritical carbon dioxide Energy. ,vol. 32, pp. 591- 599 ,(2007) , 10.1016/J.ENERGY.2006.07.016
Zhaolin Gu, Haruki Sato, Performance of supercritical cycles for geothermal binary design Energy Conversion and Management. ,vol. 43, pp. 961- 971 ,(2002) , 10.1016/S0196-8904(01)00082-6
Xin-Rong Zhang, Hiroshi Yamaguchi, Daisuke Uneno, Experimental study on the performance of solar Rankine system using supercritical CO2 Renewable Energy. ,vol. 32, pp. 2617- 2628 ,(2007) , 10.1016/J.RENENE.2007.01.003
Florian Heberle, Dieter Brüggemann, Exergy based fluid selection for a geothermal Organic Rankine Cycle for combined heat and power generation Applied Thermal Engineering. ,vol. 30, pp. 1326- 1332 ,(2010) , 10.1016/J.APPLTHERMALENG.2010.02.012
Umberto Desideri, Gianni Bidini, Study of possible optimisation criteria for geothermal power plants Energy Conversion and Management. ,vol. 38, pp. 1681- 1691 ,(1997) , 10.1016/S0196-8904(96)00209-9
Ngoc Anh Lai, Martin Wendland, Johann Fischer, Working fluids for high-temperature organic Rankine cycles Energy. ,vol. 36, pp. 199- 211 ,(2011) , 10.1016/J.ENERGY.2010.10.051