Performance Enhancement of Domestic Refrigerator Using Hydrocarbon Mixture R-436A as Refrigerant
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 7
Abstract
Domestic refrigerators use R-12 and R-134a as refrigerants because these gases have excellent thermodynamic properties. According to MONTREAL and KYOTO protocols, R-12 should have been phased out by 2010 and the consumption of R-134a must be reduced. The reason for R-12 phase out is its Ozone Depletion Potential (ODP) effect, and for R-134a reduction is its high Global Warming Potential (GWP) effect of 1300. From the environmental, ecological and health point of view, it is urgent to find some better substitute for HFC refrigerants. Many researchers have reported that hydrocarbon mixtures are found to be environment friendly alternative refrigerants. In the present work, a hydrocarbon mixture refrigerant R-436a (a mixture of R-290 and R-600a with a mass ratio of 56/44) is used as an alternative to R-134a in domestic refrigerator of 165 L capacity without any modification in refrigeration cycle. Results showed that in comparison to refrigerant R-134a the refrigerator working with refrigerant R-436a has improvement in COP and energy consumption is reduced with no load and load performances.
Authors and Affiliations
B Rajesh Babu, K. Usha Rani, Dr. B. Uma Maheswar Gowd
Keywords
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