论文信息 - Study of possible optimisation criteria for geothermal power plants

Study of possible optimisation criteria for geothermal power plants

The possibility of exploiting low temperature liquid-dominated geothermal sources can considerably increase the use of this kind of renewable energy. Improvements in the performance of geothermal cycles are possible by using closed Rankine and Kalina cycles, whose working fluid may be a pure substance or a two-component mixture. In this paper three configurations of the Rankine cycle are examined and compared to conventional single and dual flash steam power plants. The Kalina cycle system no. 12 has also been studied. Results showed that there is a potential for optimisation of the performance, by modifying the main parameters, such as turbine inlet pressure and type of fluid.

Gianni Bidini | Umberto Desideri | G. Bidini | U. Desideri

[1] Jefferson W. Tester,et al. Geothermal energy as a source of electric power : thermodynamic and economic design criteria , 1976 .

[2] S. S. Stecco,et al. Energy for the Transition Age , 1992 .

[3] R. H. Thurston,et al. Scientific Books: Transactions of the American Society of Mechanical Engineers , 1900 .

[4] M. W. Drigert,et al. Idaho National Engineering Laboratory , 1995 .

[5] Umberto Desideri,et al. A Thermodynamic Analysis of the Kalina Cycles: Comparisons, Problems and Perspectives , 1989 .

[6] Umberto Desideri,et al. An Integrated Gas Turbine-Kalina Cycle for Cogeneration , 1991 .

[7] A. I. Kalina,et al. Combined-Cycle System With Novel Bottoming Cycle , 1984 .

[8] Umberto Desideri,et al. The Ammonia-Water Mixture Rankine Cycle: Considerations on its Applicability as Bottoming Cycle , 1991 .

[9] C. J. Bliem. Preliminary performance estimates and value analyses for binary geothermal power plants using ammonia-water mixtures as working fluids , 1983 .

[10] C. J. Bliem,et al. Advanced Binary Geothermal Power Plants Limits Of Performance , 1990, Proceedings of the 25th Intersociety Energy Conversion Engineering Conference.