Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Performance Characteristics of a Mixed Refrigerant OTEC Power Cycle Using Hot Waste Water

온배수를 이용한 혼합냉매용 해양온도차 발전 사이클의 성능 특성

  • Yoon, Jung-In (Department of Refrigeration and Air Conditioning Engineering, Pukyoung University) ;
  • Son, Chang-Hyo (Department of Refrigeration and Air Conditioning Engineering, Pukyoung University) ;
  • Heo, Jeong-Ho (Graduate school of Refrigeration and Air Conditioning Engineering, Pukyoung University) ;
  • Ye, Byoung-Hyo (Graduate school of Refrigeration and Air Conditioning Engineering, Pukyoung University) ;
  • Kim, Hyun-Ju (Korea Institute of Oceans Science and Technology) ;
  • Lee, Ho-Saeng (Korea Institute of Oceans Science and Technology)
  • 윤정인 (부경대 냉동공조공학과) ;
  • 손창효 (부경대 냉동공조공학과) ;
  • 허정호 (부경대 냉동공조공학과 대학원) ;
  • 예병효 (부경대 냉동공조공학과 대학원) ;
  • 김현주 (한국해양과학기술원 해양심층수연구센터) ;
  • 이호생 (한국해양과학기술원 해양심층수연구센터)
  • Received : 2013.10.25
  • Accepted : 2013.11.06
  • Published : 2013.12.31
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Abstract

In this paper, the performance analysis for evaporation capacity, total work and efficiency of the ocean thermal energy conversion(OTEC) power system using mixed refrigerant(R32,R152a) is conducted to find the effect of hot wasted water on OTEC power system. The system in this study is applied with two stage turbine, regenerator, cooler and separator on Organic Rankine Cycle. The commercial program HYSYS is used for the performance analysis. The main results were summarized as follows : The efficiency of the OTEC power cycle has a largely effect on the evaporation capacity and total work. As increasing temperature of heat source water, evaporator's capacity is decreased but total work increase. Otherwise, using hot wasted water bring effects not only increasing system efficiency but also declining evaporator's capacity. Thus With a thorough grasp of these effect, it is necessary to find way to use hot wasted water emitted by power plant and so on.

Keywords

References

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  2. The performance comparison of vapor-vapor ejector OTEC system using wet refrigerants vol.34, pp.4, 2014, https://doi.org/10.7836/kses.2014.34.4.051