기액분리기를 적용한 가스 인젝션 히트펌프의 성능 향상에 관한 실험적 연구The Performance Improvement of a Gas Injection Heat Pump with a Flash Tank
- Other Titles
- The Performance Improvement of a Gas Injection Heat Pump with a Flash Tank
- Authors
- 손길수; 김동우; 최성경; 김용찬
- Issue Date
- 2017
- Publisher
- 대한설비공학회
- Keywords
- Gas injection; Flash Tank; Rotary Compressor; Heat Pump; 가스인젝션; 기액분리기; 로터리 압축기; 히트펌프
- Citation
- 설비공학 논문집, v.29, no.6, pp.297 - 305
- Indexed
- KCI
- Journal Title
- 설비공학 논문집
- Volume
- 29
- Number
- 6
- Start Page
- 297
- End Page
- 305
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/85214
- DOI
- 10.6110/KJACR.2017.29.6.297
- ISSN
- 1229-6422
- Abstract
- Air-source heat pumps are widely used in residential heating systems. However, the decrease in the capacity of the heat pump is unavoidable when operating at very low and high ambient temperatures. The vapor injection technique is considered a promising technology to overcome this problem. Recent research on vapor injection cycles have mainly adopted a scroll compressor with an internal heat exchanger at severe operating conditions. This study measured the COP and EER of a gas injection heat pump using a flash tank with an inverter-driven rotary compressor at severe operating conditions. Compared to non-injection heat pumps, the heating capacity and COP of the gas injection heat pump improved up to 15% and 2.9%, respectively, at outdoor temperatures of -10℃ to 7℃. The cooling capacity of the gas injection heat pump was 11% higher than the non-injection heat pump at an outdoor temperature of 35℃. At the same time, the EER of the gas injection heat pump was similar to that of the non-injection heat pump.
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Collections - College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
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