멀티 히트펌프의 정상상태 냉방운전 특성에 대한 실험연구
Experimental Study on Steady-State Cooling Operation Characteristics of Multi-Heat Pump
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초록
In the present study, to investigate the cooling characteristics of the multi-heat pump with 3 indoor units, 7 indoor unit combinations and 3 setting temperatures are selected to study the cooling characteristics during steady-state operation. The cooling capacity, power consumption, COP, compressor high and low pressure of the heat pump are tested under the cooling standard temperature conditions using an air enthalpy multi-calorimeter. The experimental results show that, except for an operation with an indoor unit capacity of 30% or less, the cooling capacity, power consumption, and compressor operation frequency increase as the capacity of the indoor unit increases and the setting temperature of the indoor unit decreases. COP increases or decreases according to the compressor frequency, and is the best at 50-80% capacity of the indoor unit. As the compressor frequency increases, the compressor outlet pressure increases by about 30%.
Abstract
In the present study, to investigate the cooling characteristics of the multi-heat pump with 3 indoor units, 7 indoor unit combinations and 3 setting temperatures are selected to study the cooling characteristics during steady-state operation. The cooling capacity, power consumption, COP, compressor high and low pressure of the heat pump are tested under the cooling standard temperature conditions using an air enthalpy multi-calorimeter. The experimental results show that, except for an operation with an indoor unit capacity of 30% or less, the cooling capacity, power consumption, and compressor operation frequency increase as the capacity of the indoor unit increases and the setting temperature of the indoor unit decreases. COP increases or decreases according to the compressor frequency, and is the best at 50-80% capacity of the indoor unit. As the compressor frequency increases, the compressor outlet pressure increases by about 30%.
참고문헌 (6)
- 권영철, "실내기 조합에 따른 3실형 열펌프의 냉방성능 실험연구", 한국산학기술학회논문지, 9(6), pp.1487~1493 (2008), 한국산학기술학회
- Y. H. Jun, "Cooling and heating characteristics of system A", C using the digital scroll compressor, 2003, 1536~1541
- C. J. Um, "The capacity and energy efficiency simulation of system air conditioner under the load variation", Proceedings of the SAREK Summer Conference, pp.265~268 (2015)
- 양동학, "멀티 에어컨의 2실 동시운전 시 냉방성능 특성에 대한 실험적 연구", 한국기계기술학회지, 20(5), pp.612~617 (2018), 한국기계기술학회[DOI]
- "KS C 9306, Air-conditioner", Korean Agency for Technology and Standard, ~ (2017)
- ASHRAE, "Method of testing for seasonal efficiency of unitary air conditioners and heat pumps", NSI, 1995