Thermodynamic Optimization of Turbine Lines for Maximum Exergy Efficiency in a Binary Geothermal Power Plant

Abstract

I n recent years due to the limited production and lifetime of fossil resources on earth, and their effects on the health of organisms and climate, awareness of renewable energy resources like geothermal energy has increased worldwide. Considering the issues mentioned in terms of Turkey, the importance of geothermal energy as renewable energy is obvious. Geothermal energy is a clean, safe and reliable source of renewable energy [1]. Generally high temperature resources (T>150 °C) are used for electricity production, while moderate (90 °C<T<150 °C) and low (T<90 °C) temperature resources are used in more direct use areas. In recent times, very low temperature resources (T<35 °C) have been used in heat pump applications. The situation in Turkey is that moderate and high temperature resources and, due to the large profit margin, electricity production from these resources are chosen more often compared to other uses. The results clearly show that the installed power from