논문 국내 국내전문학술지(KCI급) 이코너마이저 적용 열펌프 시스템의 부하변화에 따른성능 특성 연구
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2014-09
- 저자명 최종민
- 학술지명 한국지열에너지학회논문집
- 발행처명 한국지열에너지학회
- 발행국가 국내
- 논문언어 외국어
- 전체저자수 3
홈페이지논문 초록 (Abstract)
Heat pumps have received a fair amount of attention all over the world for their highefficiency and low environmental impact. Employing heat pumps for residential heating andcooling produces only about 2038 kg-CO2/year, an amount which is less thanhalf that ofconventiona l boiler systems. However, the use of single-stage heat pumps becom es uneconomicalwhen they areoperated at very low evaporating temper ature or high condensing temperature. Two-stage heat pumps systems can be used successfully for low or high temperatureapplications. In this paper, the experimental study on the performance of two-stage heatpump with an economizer was executed in heating mode. When the secondary fluid inlettemperature to the i ndoor heat exchangerincreased, the COP enhancement rate oftwo-stage he at pump with an economizer was increased. For all outdoor inle t temperatureconditions, the performance of the heat pump with an econom izer was higher than itwithout an economizer.