| Title | Working Fluid and Cycle Selection Criteria for Binary Geothermal Power Plant |
|---|---|
| Authors | Ingvarsson, I. J.; Turner, S. E. |
| Year | 1978 |
| Conference | Geothermal Resources Council Transactions |
| Keywords | Power Generation; Binary Cycle; Thermodynamics; Pressure; Enthalpy; Optimum |
| Abstract | Binary cycles using refrigerants as working fluids are an effective means of developing geothermal resources for power production. In order to maximize the utilization of the geothermal fluid resource over a temperature range from 220° to 400°F (104° to 204°C), a study was performed to optimize a 50 MW plant design with respect to working fluid and thermodynamic cycle. Results indicated that, of the four fluids studies, propane is optimum for geothermal fluid temperatures of 200° to 280°F (93° to 138°C). For a temperature range of 300° to 360°F (149° to 182°C), isobutane performed best, and for temperatures of 380° to 400°F (193° to 204°C), pentane was most effective. |