동력기계공학회지 (Journal of Power System Engineering)

  • 제18권1호
  • /
  • Pages.51-56
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  • 2014
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  • 2713-8429(pISSN)
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  • 2713-8437(eISSN)
한국동력기계공학회 (The Korean Society for Power System Engineering)
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열교환기 온도차에 따른 새로운 LNG 액화사이클의 성능 특성

Performance Characteristics of New LNG Liquefaction Cycles with Temperature Differences in the Heat Exchangers

  • 윤정인 (부경대학교 냉동공조공학과) ;
  • 손창효 (부경대학교 냉동공조공학과)
  • Yoon, Jung-In (Dept. of Refrigeration and Air-Conditioning Engineering, Pukyong National University) ;
  • Son, Chang-Hyo (Dept. of Refrigeration and Air-Conditioning Engineering, Pukyong National University)
  • 투고 : 2013.09.23
  • 심사 : 2013.10.21
  • 발행 : 2014.02.28
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초록

In this paper, the performance of the $CO_2-C_2H_6-N_2$ cascade liquefaction cycle with respect to temperature differences in the LNG heat exchangers is analyzed theoretically using HYSYS software and then compared the COP(coefficient of performance) of the cascade liquefaction cycles using $C_3H_8-C_2H_4-C_1H_4$ and $CO_2-N_2O-N_2$. In comparison of COP of three cycles, the cascade liquefaction cycles using $C_3H_8-C_2H_4-C_1H_4$ showed the highest COP. And the liquefaction cycle using $CO_2-C_2H_6-N_2$ and $CO_2-N_2O-N_2$ presented the second and third highest COP, respectively. In case of COP, the $C_3H_8-C_2H_4-C_1H_4$ cascade liquefaction cycle yields better COP. But, in terms of the environment and maintain, it is confirmed that the cascade liquefaction cycle using $CO_2-C_2H_6-N_2$ provides favorable characteristics.

키워드

참고문헌

  1. HYSYS 2.2 Documentation. Customization Guide. AEA Technology-Hyprotech, Ltd: Calgary; Canada.
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