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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on the DSM Effect of a Refrigerant-Subcooling Refrigeration System with an Ice Storage Tank

축열조를 이용한 냉매과냉각 시스템의 전력수요관리 효과에 대한 연구

  • Kim, Jeong-bae (Department of Energy System Engineering, ChungJu National University) ;
  • Lee, Eun-Ji (Department of Mechanical Engineering, Korea University) ;
  • Lee, Dong-Won (Korea Institute of Energy Research)
  • Received : 2010.08.31
  • Accepted : 2010.09.29
  • Published : 2010.12.10
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Abstract

This study was experimentally performed to find the effects of refrigerant subcooling in the refrigeration system and to propose how to get the efficient use of energy. A refrigerant-subcooling refrigeration system consisted of a typical single vapor-compression refrigeration cycle, a subcooler, and an ice storage tank. The degree of subcooling at the exit of the condenser can be increased by the heat transfer between the subcooler and the ice storage tank. The cold heat in the ice storage tank was stored by using the refrigeration cycle during night time and then used to absorb the heat from the subcooler during daytime. The cooling capacity and COP of this system were higher than those of the conventional system due to the increase in the degree of subcooling. Typically, the refrigerant-subcooling system showed superior performance to the conventional refrigeration system and would also contribute to load leveling.

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References

  1. Lee, M. H., 2005, The incentive programs of cool storage system and energy efficient equipments for DSM, Proceedings of SAREK Summer Annual Conference, pp. 350-356.
  2. Lee, D. W., 2007, Sub-cooling effect using cold storage system, Proceedings of SAREK Summer Annual Conference, pp. 1067-1071.
  3. Lee, E. J., Lee, D. W. and Kim, Y. C., 2009, Basic Study on Sub-cooling System using Ice storage tank, Proceedings of SAREK Summer Annual Conference, pp. 990-995.
  4. Lee, E. J., Lee, D. W. and Kim, Y. C., 2009, An Experimental Research on the Refrigerant Subcooling Effects in Refrigeration System Performance, Proceedings of SAREK Winter Annual Conference, pp. 239-244.
  5. Lee, E. J., Lee, D. W. and Kim, Y. C., 2010 An Experimental Study on the Performance Characteristics of a Refrigerant-Subcooling Refrigeration System with an Ice Storage Tank, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 22, No. 6, pp. 369-374.
  6. Lee, H. L., 1999, Study on performance enhancement of the heat pump using a liquid distributor, SAREK Summer Annual Conference, pp. 203-208.
  7. 2009, KEPCO Report for Electricity Rate(Total).