TECHNOLOGY PERFORMANCE ANALYSIS OF AIR COOLED WATER COOLER BY USING ECO- FRIENDLY REFRIGERANTS AS A POSSIBLE SUBSTITUTE OF R134A

The EU F-gas regulation would take effect from January 1,2015. The regulation implies an HFC phase-down from 2015 to 2030 by means of bans on high GWP refrigerants. Especially R134a is under pressure and likely to be phased out of all commercial systems. Since the regulation has just been adopted andthere is still a great deal of uncertainty as to what will happen. we follow the situation closely and just like other experts we expect the use of low GWP refrigerants to grow with intermediate solutions emerging like for instance R152a as substitution for R134a; although these solutions are intermediate they are likely to be used for some years into the future. We also expect new blends of R152a and R134a to play a role yet to be seen. In the present work, the performance of the Air cooled water cooler test rig based on vapour compression refrigeration cycle is studied by using R134a and on the basis of their experimental result , we studying the result of R152a and blending of R152a with R134a in various mass fraction with help of Refprop property software. The result are analyzed in terms of Coefficient of performance(cop) , Refrigeration capacity, compressor work , condenser capacity, specific volume, Thermal conductivity and miscibility of lubricants shows that R152a, R134a/R152a-30/70 and R134a/R152a -10/90 is possible alternate for R134a.