International Journal of Engineering and Techniques - Volume 4 Issue 3, May- June 2018 ISSN: 2395-1303 http://www.ijetjournal.org Page 36 Experimental Performance Analysis ofVCR System Using Mixture of Hydrocarbon (R134a/R600a) with Different Concentrations Sandip S. Sisat 1 , Prof. S. Y. Bhosale 2 , Prof. H. N. Deshpande 3 1 Department of Mechanical Engineering, PES’s MCOE, Pune, India, 2 Associate Professor, Department of Mechanical Engineering, PES’s MCOE, Pune, India, 3 Assistant Professor, Department of Mechanical Engineering, PES’s MCOE, Pune, India 1. Introduction Vapor compression refrigeration (VCRS) in which the refrigerant goes through phase change process called VCR system. Chloro-fluro-carbon (CFCs) and hydro- cholro-fluro- carbon (HCSCs) have many suitable properties like non- flammability, low toxicity, and material compatibility that have led to their common widespread use by consumer and industries. Air, ammonia, carbon dioxide and water and HC are the only refrigerants with zero ODP and negligible GWP and low environmental impact. Compared to HFCs and CFCs hydrocarbon have low viscosity and high thermal conductivity. Thermal properties of HCs are similar to that of refrigerants, like propane and R-12 & R-22. Since the discovery of the depletion of the earth ozone layer cause by CFCs and HCFCs and as the result of the 1992 united nation environmental program meeting, the out of CFCs- 11 and CFCs- 12 use mainly in conventional refrigeration and air conditioning equipment was expected by 1996 (Lee And Su, 2002). This article provides experimental results of R134a and data regarding the hydrocarbon used in experimentation. The test will be done on No Load, 50 Watt, 100 Watt and 150 Watt load. The tests will be conducted at three different mass % (60/40, 70/30, & 80/20 mass %) for each load.Jose V. H. D’Angelo, et. al. [1], studied with the mixture of R290/ R600a in vapour injection system. The performance of the vapor injection cycle achieved 16- 32 % higher than that of vapor compression cycle. A. S. Dalkilic, et. al. [2], deals with the VCR system using various alternative refrigerants. The mixture of R290/ R600a (40/ 60 wt. %) gives better performance instead of CFC 12. S. Wongwises, et. al. [5], presents an experimental analysis of hydrocarbon mixtures to replace R134a. The energy consumption was reduced by 4.86% in the mixture of propane/butane (60/40 %) compared to R134a. J. N. Esbriet. al. [6], works on the drop in ABSTRACT In this research work, an experimental performance study on a VCR system with refrigerant mixtures based on HFC 134a and HC 600a is done for various composition ratios and loading conditions. This paper provides experimental results of R134a and the mixtures of R600a with R134a used in the experimentation. The tests are conducted at 0W, 50 Watt, 100 Watt and 150 Watt load with different mass concentrations (40/60, 50/50, 60/40, 70/30 and 80/20 mass %). Experimental results showed that all of the alternative refrigerants investigated in the analysis have a higher performance coefficient (COP) than HFC134a for evaporating temperatures ranging between -30 °C to 12 °C. Refrigerant blends of HFC134/HC600a (50/ 50 by wt. %) instead of HFC134a are found to be replacement refrigerants among other alternatives as a result of the analysis. After the experimentation and analysis, it is found that the mixture of R134a/R600a (50/50 wt %) has improved the performance of the system by 4.10 % than R134a with 3.73% less power consumption. Keywords: Refrigerant blends, Hydrocarbon, COP, Exergy loss, etc. RESEARCH ARTICLE OPEN ACCESS