논문 국내 국내전문학술지(KCI급) 2단 승온 캐스케이드 히트펌프의 성능 특성에 관한 연구
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2016-12
- 저자명 최종민
- 학술지명 한국지열에너지학회논문집
- 발행처명 한국지열에너지학회
- 발행국가 국내
- 논문언어 외국어
- 전체저자수 2
홈페이지논문 초록 (Abstract)
It is estimated that only heating and cooling take about one third of the total energy consumption worldwide. However, the conventional heating and cooling systems have low efficiencies. Also, boilers and electric heaters that are mostly used to generate both domestic and industrial hot water are inefficient and high energy consumers. For this reason, cascade heatpumps which are known to be very ener gy efficient and have less environmental impact are being promoted to replace conventional heating, cooling and hot water systems. In this study, a newly designed cascade heat pump by twostage water hea ting method has been experimentally investigated. By adopting the au xiliary heat exchanger, the performance of the system was increased. Th e performance enhancement rate of the system could be maximized b y adjusting the low stage compressor speed rather than the high s tage compressor speed. The performance of the system with the auxili ary heat exchanger was enhanced by 16.5%.