| Title |
An Experimental Study on the Performance Improvement of an R32 Inverter Heat Pump System |
| Authors |
박윤기(Yun Ki Park) ; 하만영(Man Yeoung Ha) |
| DOI |
http://dx.doi.org/10.6110/KJACR.2014.26.11.547 |
| Keywords |
에어컨 ; 히트 펌프 ; R32 냉매 ; 응축기 ; 증발기 ; 압축기 ; 성적 계수 Air-conditioner ; Heat pump ; R32 refrigerant ; Condenser ; Evaporator ; Compressor ; COP |
| Abstract |
As global warming in recent years has raised ever more critical concern, refrigerants with high global warming potentials (GWP) are facing the challenge of being phased out. R410A, with a GWP of 2,088, has been widely used in residential air-conditioning and heat pump systems. A potential substitute for R410A is R32, which has a GWP of 675. The present study presents experimental results of an inverter heat pump system that uses R32 as an alternative refrigerant to R410A. Drop-in tests with R32 indicated that the energy efficiency ratio of the system increased by 5.3% in cooling standard mode, and by 4.2% in heating standard mode at the same capacity; and that the cooling and heating capacity increased by about 12% at the same compressor operating frequency, while the annual performance factor (APF) of the system increased by 5.3%. |