Title of article :
Investigation of the effect of different refrigerants on performances of binary geothermal power plants
Author/Authors :
Basaran، نويسنده , , Anil and Ozgener، نويسنده , , Leyla، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Abstract :
The paper tries to review the argument of the use of working fluids for binary cycle power plants and has been dedicated to this specific argument with a more general perspective. Binary cycle that allows the production of electricity from geothermal energy sources is one of these systems. In this cycle, thermal energy obtained from geothermal sources is transferred to second working fluid. Therefore, selection of second working fluid plays a key role on the cycle performance. In this study, a sample geothermal binary power cycle was modeled and 12 refrigerants that are HFC, HC, and zoetrope refrigerant mixtures were selected as working fluid. Energy and exergy efficiencies of binary cycle were calculated for 12 refrigerants. Dry type fluids of investigated refrigerants R 236ea, R 600, R 600a, and R 227ea showed higher energy and exergy efficiencies, respectively. On the other hand, R 143a, R 415A, R 290, and R 413A that are wet fluids indicated lower energy and exergy efficiencies, respectively.
Keywords :
efficiency , Exergy , Binary power cycle , Working fluids , Energy
Journal title :
Energy Conversion and Management
Journal title :
Energy Conversion and Management