COMPARISON OF PERFORMANCE R-22, R-32, R-290, R-1270 ON AC RESIDENTIAL UNITS WITH HOT LOAD VARIATION
Kamin Sumardi
Mechanical Engineering Education Department, FPTK
Universitas Pendidikan Indonesia
Abstract
This study is to compare the performance of synthetic refrigerants with hydrocarbons with variations in heat in residential AC units. The test method used is an experiment. Testing using split AC residential 1 HP. Paramter is tested, namely: effective energy ratio (EER), coefficient of performance (CoP), refrigeration effect (RE), amount of refrigerant flowing, pressure, temperature, and electricity consumption. The results showed that in general the performance of R-1270 is better than synthetic refrigerants. The EER, CoP, and RE R-1270 are greater than synthetic refrigerants. This value indicates that the R-1270 has a greater performance. The amount of refrigerant flowing, pressure, and energy consumption of electricity R-1270 are smaller than synthetic refrigerants. The data shows that R-1270 is more efficient than synthetic refrigerants. The lowest temperature that can be achieved by R-1270 is 1-2 oC higher than synthetic refrigerant. The difference does not have a big effect on the room to be conditioned. Comparison of performance with R-290 hydrocarbon refrigerants, R-1270 performance is still slightly below the performance of R-290. The difference is because the material used by the two hydrocarbons is different. The conclusion of this study is that R-1270 and R-290 are more effective and efficient for use in residential air conditioners. Technically R-1270 and R-290 can replace (retrofit) R-22 and R-32 in residential AC systems.
Keywords: Hidrocarbon refrigerant, Residential air conditioning
Topic: Mechanical Engineering