| Title | Time-Evolution Process of Temperature for Geothermal Binary Cycle Power Plant from Low-Temperature Geothermal Resource |
|---|---|
| Authors | Atirat Maksuwan |
| Year | 2018 |
| Conference | Asian Geothermal Symposium |
| Keywords | geothermal binary cycle power plant, combined heat and power (CHP), Carnot efficiency, Low-temperature geothermal resources, cooling fluid supply |
| Abstract | The purpose in this research was to predict tendency of increase Carnot efficiency of the geothermal binary cycle power plant from low-temperature geothermal resource. Low-temperature geothermal resources are usually exploited by means of binary-type energy conversion systems. For this reason, the analysis of maximum efficiency for electricity production of the geothermal binary cycle power plant from low-temperature geothermal resource was important. The methodology of this research used model of the heat exchanger equivalent to a power plant together with the calculation of the combined heat and power (CHP) generation. The CHP was solved in detail of the development from previous research. Such development was the time-evolution process of temperature for source fluid inlet-outlet and cooling fluid supply. The Carnot efficiency from the CHP calculation was divided in two cases. The first was condition of time-evolution process of increase temperature for source fluid inlet-outlet. The second was condition of time-evolution process of decrease temperature for cooling fluid supply. Result in this research show that the Carnot efficiency for the geothermal binary cycle power plant from low-temperature geothermal resource has tendency increase in condition of time-evolution process of decrease temperature for cooling fluid supply. |