Proceedings of the Korean Society of Machine Tool Engineers Conference (한국공작기계학회:학술대회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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The Study on Performance Characteristics of $NH_3$ and R22 due to Structure of Heat Exchanger

열교환기 구조 변화에 따른 $NH_3$와 R22의 성능특성연구

  • 하옥남 (조선대학교 기계공학과) ;
  • 하경수 (조선대학교 산업대학원 기계공학과) ;
  • 이승재 (조선대학교 대학원 기계공학과) ;
  • 정송태 (조선대학교 대학원 기계공학과)
  • Published : 2005.05.01
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Abstract

Nowadays HCFCs refrigerant are restricted because it cause depletion of ozone layer. However, natural gases such as ammonia as an organic compound, propane and propylene as hydrocarbon are easy and cheap to obtain as well as environmental. Accordingly, this experiment apply the $NH_3$ and R22 to study the performance characteristic from the superheat control and compare the energy efficiency of two refrigerants from the high performance. The condensing pressure of refrigeration system is increased from 15bar to 16bar and degree of superheat is increased from 0 to $10^{\circ}C$ at each condensing pressure. As the result of experiment, when comparing the each COP, we knew the $NH_3$ is suitable as the alternative refrigerant of the R22.

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