Comparative Analysis of R-134a and Zeotropic Blend by using Vapour Compression Refrigeration Test Rig

Tetrafluroethane is used in industrial, domestic and various refrigeration system. R-134a has zero ozone depletion potential and very good chemical and thermodynamic properties, but it has 1300 global warming potential which is high and consumes more power because the environmental impact of global warming has become a challenge to the refrigeration and other industry. Global warming is the increase in the Earth's surface temperature caused by increased emission of greenhouse gases into the atmosphere. There is a need to search the alternatives of R134a. The property software (NIST REFPROP SOFTWARE) uses for performance analysis of new zeotropic blend mixture. It will found to improve the COP of the system 5.2 to5.6 and GWP.