Determination of a Suitable Retrofit of R-134A Using Refrigerant Blends of R290 and R600 Aided by an Optimization Technique

The effect of the hydrochlorofluorocarbon (HCFC) and hydrofluorocarbon (HFC) refrigerants on environment through attack its halogen contents-chlorine fluorine, ozone layer toxic nature such refrigerants, has paid attention researchers to work towards getting suitable alternatives using hydrocarbons (HC) or blends with HFC refrigerants. This study was centered a retrofit R-134A good coefficient performance (COP) low global warming potential (GWP) R-290 R-600 HCs for use in refrigeration systems. An experimental testing rig developed by assembling various measuring devices operational points vapor compression refrigerator. A mixture design simplex lattice (SLD) expert software 11.0. response variables considered were COP GWP. meticulously followed 1kg each refrigerant run, temperature pressure values at operating noted. From results obtained, blend had highest 2.5 GWP value 3.93. Blend D lowest C.O.P. 1.33, while B 3.51. Also, optimal achieved factor 59% R-290a 41% R-600. obtained this level COP-2.05182 – 3.59. Therefore, would be better R-134a could used