Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Performance Characteristics of OTEC(Ocean Thermal Energy Conversion) Power Cycle with Vapor-Liquid Ejector

증기-액 이젝터를 적용한 해양온도차발전 시스템의 성능 특성

  • Yoon, Jung-In (Department of Refrigeration and Air Conditioning Engineering, Pukyong University) ;
  • Son, Chang-Hyo (Department of Refrigeration and Air Conditioning Engineering, Pukyong University) ;
  • Kim, Hyeon-Uk (Graduate School of Refrigeration and Air Conditioning Engineering, Pukyong University) ;
  • Ha, Soo-Jung (Graduate School of Refrigeration and Air Conditioning Engineering, Pukyong University) ;
  • Lee, Ho-Saeng (Korea Institute of Oceans Science and Technology) ;
  • Kim, Hyun-Ju (Korea Institute of Oceans Science and Technology)
  • 윤정인 (부경대 냉동공조공학과) ;
  • 손창효 (부경대 냉동공조공학과) ;
  • 김현욱 (부경대 냉동공조공학과 대학원) ;
  • 하수정 (부경대 냉동공조공학과 대학원) ;
  • 이호생 (한국해양과학기술원 해양심층수연구센터) ;
  • 김현주 (한국해양과학기술원 해양심층수연구센터)
  • Received : 2014.05.01
  • Accepted : 2014.06.10
  • Published : 2014.10.31
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Abstract

In this paper, the performance analysis of condensation and evaporation capacity, turbine work and efficiency of the OTEC power system using vapor-liquid Ejector is presented to offer the basic design data for the operating parameters of the system. The working fluid used in this system is $CO_2$. The operating parameters considered in this study include the vapor quality at heat exchanger outlet, pressure ratio of ejector and inlet pressure of low turbine, mass flow ratio of separator at condenser outlet. The main results were summarized as follows. The efficiency of the OTEC power cycle has an enormous effect on the mass flow ratio of separator at condenser outlet. With a thorough grasp of these effects, it is possible to design the OTEC power cycle proposed in this study.

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References

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