Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Experimental Study on Heating Performance by Operation Combination of Heat Pump with 3 Indoor-Units

3실 열펌프의 운전조합에 대한 난방성능 실험연구

  • Kim, Ju-Hyung (Department of Mechanical Engineering, Korea Polytechnic University) ;
  • Kim, Ki-Young (Department of Mechanical Engineering, Sunmoon University) ;
  • Kwon, Young-Chul (Department of Mechanical Engineering, Sunmoon University) ;
  • Park, Seung-Chul (Department of Mechanical Engineering, Korea Polytechnic University)
  • 김주형 (한국산업기술대학교 기계공학과) ;
  • 김기영 (선문대학교 기계공학과) ;
  • 권영철 (선문대학교 기계공학과) ;
  • 박승철 (한국산업기술대학교 기계공학과)
  • Received : 2013.08.12
  • Accepted : 2013.09.06
  • Published : 2013.09.30
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Abstract

In order to investigate the heating performance of multi-heat pump applying an inverter compressor, the experiment on heat pump with 3 indoor units was performed under the heating standard and heating low-temperature conditions. The performance data of heat pump with 3 indoor units were measured by the multi-psychrometric calorimeter. The operation characteristics and the behavior of the refrigerant cycle of the heat pump with 3 indoor units were understood from the heating capacity, heating COP, and P-h diagram by indoor-unit combination. The present experimental results show that the operating load and performance of the multi-heat pump depends on the indoor-unit combination. The heating capacity and heating COP of the low temperature condition were smaller than those of the standard one. Also the refrigerant cycles on indoor-unit combination were analyzed by using P-h diagram.

본 실험연구는 인버터 압축기를 적용한 실내기 3실을 가진 멀티형 열펌프 시스템의 난방운전 시 열펌프의 난방성능을 연구하였다. 멀티형 열펌프의 운전특성은 항온항습 기능을 가진 공기엔탈피방식의 멀티형 칼로리미터를 이용하여 측정되었다. 난방표준 및 난방저온 온도조건에서 실내기 운전조합에 따른 실험을 수행하여 난방성능 변화를 관찰하였다. 실내기 3실을 가진 열펌프의 실내기 운전조합에 따른 난방표준 및 난방저온 운전에서 난방능력, 난방 COP, P-h선도로부터, 3실을 가진 열펌프의 운전특성과 냉매 사이클의 거동을 조사하였다. 열펌프의 운전부하와 성능은 실내기 조합에 의한 부분부하에 의존하므로 열펌프의 난방능력과 사이클의 거동은 다르게 관찰되었다. 표준온도 시험조건 대비 저온 시험조건의 난방능력과 난방 COP는 감소하였다. 또한 실내기 조합에 대한 냉매사이클은 P-h 선도를 사용하여 분석되었다.

Keywords

References

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