Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Evaluation of Performance of a Residential Air-Conditioning System Using Microchannel and Fin-and-Tube Heat Exchanger

마이크로채널과 핀 튜브 열교환기를 적용한 가정용 에어컨디셔너의 성능 평가

  • Yun, Rin (Department of Mechanical Engineering, Hanbat Notional University)
  • 윤린 (한밭대학교 기계공학과)
  • Published : 2007.01.10
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Abstract

In this study the seasonal performance of a residential air conditioning system having either a fin-and-tube condenser or a microchannel condenser is experimentally investigated. A commercially available 7 kW capacity residential air conditioning system having a fin-and-tube condenser served as the base system. The test results show that the system with a microchannel heat exchanger has a reduced refrigerant charge amount of 10%, the coefficient of performance is increased by 6% to 10%, and the SEER is increased by 7% as compared with those of the base system. Moreover, the condensing pressure of the system is decreased by 100 kPa and the pressure drop across the condenser is decreased by 84%. The microchannel heat exchanger enhances the SEER of the residential air conditioning system by providing better heat transfers at reduced pressure drops.

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References

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