Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
권호 표지

Effect of Frost and Defrost on the Operating Characteristics of Refrigeration System

착상과 제상이 냉동장치의 운전특성에 미치는 영향

  • 김재돌 (동명대학교 공과대학 냉동공조공학과)
  • Received : 2010.05.31
  • Accepted : 2010.06.22
  • Published : 2010.08.31
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Abstract

This study was investigated the effect on operating characteristics of apparatus according to frosting and defrosting to develop of new defrosting equipment. The results showed as following. Frost was almost removed using the defrosting equipment with roll brush type that defrosting is possible under operating condition. Also, the temperature of compressor inlet, evaporator inlet and outlet showed higher value because of heat transfer resistance of cooling pipe frost comparing with defrosting condition. And the compressor work showed 10% lower and COP was presented 24% higher values than defrosting condition. Therefore, defrosting for cooling coil of refrigeration and low temperature storage was effected on operation and performance characteristics of equipment. This highly effects on real refrigeration apparatus which is operated in year-around.

Keywords

References

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