Theoretical investigation of performances of R22 and R407c and R410a which are substitutes for R22 in a heat pump

After determining the refrigerants used in cooling systems cause the global warming and have ozone depletion potential, new alternative refrigerants, harmless for environment, have been started to be developed and used. Unfortunately, it cannot be reached to enough information about the performance of refrigerants in cooling systems in our country.In this work, the cooling-heating performances, the energy and exergy performance in a heat pump system with superheated/sub cooled of R22 and R407C and R410A which are substitutes for R22 have been theoretically investigated . Obtained results were graphically compared. Data used in present work were obtained from Solkane 6.0 and were transmitted to graphics by Matlab 6.0Key Words: Refrigerating, heat pump, refrigerant, R407C, R22, R410A,