| Title |
Heating Performance Characteristics of a Heat Pump with a Variable Speed Injection Scroll Compressor |
| Authors |
고석빈(Suk Bin Ko) ; 허재혁(Jaehyeok Heo) ; 조일용(Il Yong Cho) ; 김용찬(Yongchan Kim) |
| DOI |
http://dx.doi.org/10.6110/KJACR.2012.24.5.377 |
| Keywords |
히트펌프 ; 난방성능 ; 인젝션 ; 가변 용량 스크롤압축기 Heat pump ; Heating performance ; Injection ; Variable speed scroll compressor |
| Abstract |
Vapor injection technique has been applied to prevent performance degrdation of a heat pump at low ambient temperatures. In this study, the heating performance of a heat pump with a variable speed injection scroll compressor using R-410A was investigated by applying sub-cooler vapor injection(SCVI) and flash tank vapor injection(FTVI). The heating performance of the heat pump was measured by varying compressor frequency and outdoor temperature. The heating capacity of the FTVI system was 8∼10% higher than that of the SCVI system at all operating conditions. On the other hand, the heating performance improvement with the increase in the compressor frequency was more prominent in the SCVI system than in the FTVI system. |