Effect of Cooling Load on the Performance of R22 Residential Split Air Conditioner when Retrofitted with Hydrocarbon Refrigerant (HCR22)

Azridjal Aziz; Thalal; Afdhal Kurniawan Mainil

Authors

Azridjal Aziz Department of Mechanical Engineering, Faculty of Engineering, Universitas RiauJl. Subrantas km 12, Pekanbaru 28293, Indonesia
Thalal Department of Mechanical Engineering, Faculty of Engineering, Universitas RiauJl. Subrantas km 12, Pekanbaru 28293, Indonesia
Afdhal Kurniawan Mainil Department of Mechanical Engineering, Faculty of Engineering, Universitas Bengkulu Jl. WR. Supratman, Kandang Limun, Bengkulu 38371A, Indonesia

Keywords:

Split air conditioner, ydrocarbon refrigerant, HCR22, COP, cooling load

Abstract

An experimental study to evaluate the effect of cooling load on the performance of residential split air conditioner (RSAC) by replacing R22 refrigerant when retrofitted with hydrocarbon refrigerant (HCR22) had been carried out. The cooling load is varied from 0 W, 1000 W, 2000W and 3000 W like featuring on actual condition of cooling load in the residential. The research objective was the performance investigation of the cooling load influence on the performance of HCR22 refrigerant as a substitute for R22 refrigerant in standard vapour compression cycle of refrigeration system. The results show that the COP of RSAC increase with the increasing of cooling load (0 W, 1000 W, 2000 W and 3000 W), where the COP with HCR22 increase 16.10%, 12.66%, 16.56% and 19.99% higher than R22 respectively, and the compressor power consumption were reduced with HCR22 lower than R22 by 18.27%, 20.01%, 16.26% and 22.56% respectively, while the cooling capacity and heat rejection capacity were relatively similar. The experimental results show that HCR22 had better performance compared to R22, and indicating that HCR22 could be used for retrofitting existing RSAC with R22.