Experimental Investigation on the Performance Analysis Domestic Refrigeration Using Eco Friendly R290 & R600a Refrigerant

Abstract

In residential refrigerators, R134a is the most often used refrigerant. The Kyoto Protocol requires that it be phased out as soon as possible because to its high global warming potential (GWP) of 1300. In the current study, a 200l single evaporator home refrigerator using a hydrocarbon refrigerant combination (made up of R290 and R600a in a weight ratio of 45.2:54.8) has been used as an alternative to R134a. While cycling running (ON/OFF) testing were only conducted at 32 ◦C ambient temperature, continuous running tests were conducted at various ambient temperatures (24, 28, 32, 38, and 43 ◦C). The hydrocarbon mixture was found to have a 3.25–3.6% higher coefficient of performance (COP) and lower values of energy consumption, draw down time, and ON time ratio by around 11.1%, 11.6%, and 13.2%, respectively. It was discovered that the hydrocarbon mixture's discharge temperature was between 8.5 and 13.4 K lower than R134a's. Overall performance has demonstrated that the hydrocarbon refrigerant mixture mentioned above may be the most suitable long-term replacement for R134a as it phases out.