A competitive study of a geothermal heat pump equiped with an intermediate economizer for R134a and R513A working fluids

At temperatures below 60?C, the best way to use geothermal sources for heating is heat pumps. A pump can provide air conditioning a residential, commercial, etc., all year round by in winter and cooling summer using low-temperature source. Also, be used water distillation through evaporation. The ground source with high COP thermal energy one of technologies renewable sources. In present study, effects changing ambient temperature soil on pump's overall efficiency are investigated simulated an economizer. system's thermodynamic simulation first performed EES software R134a R513A working fluids. exergy destruction different components both fluids was calculated displayed as figure. fluid equal 3.916, 3.729 fluid, which indicates that has about 5% better performance. system 3.662, 3.504 4.5%