Experimental Investigations on Eco-Friendly Refrigeration and Air Conditioning Systems

Abstract:-The presence of chlorofluorocarbons (CFCs) and hydro-chlorofluorocarbons (HCFCs) refrigerants have adverse effects on our environment by contributing towards ozone layer depletion and green house effect. Hence, this research paper has put forth efforts to eliminate these adverse effects by the design and development of suitable eco-friendly refrigeration and air conditioning systems and efficiency improvements in the refrigeration systems. This paper also discusses on experimental studies carried out for the performance evaluations of a domestic refrigerator when four ratios of hydrocarbon, propane, butane and isobutene are used as possible alternative replacements to the traditional, R-12 refrigerant. The uses of proposed alternative refrigerants have the advantages such as (i) availability in local places, (ii) cheapness, and (iii) of an environmentally friendly nature. An unmodified R – 12 domestic refrigerators and air conditioners were charged and tested with each of the four hydrocarbon mixtures containing propane, butane, isobutene in the following ratios shown: HYDROCARBON