Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Basic Static Characteristics of a Closed and a Regeneration Cycles for the OTEC System

해양온도차발전 Closed and Regeneration Cycle의 기본 정특성

  • 차상원 (한국해양대학교 대학원 기관시스템공학과) ;
  • 김유택 (한국해양대학교 기계에너지시스템공학부) ;
  • 모장오 (호주 University of Adelaide) ;
  • 임태우 (한국해양대학교 기관공학부) ;
  • 이영호 (한국해양대학교 기계에너지시스템공학부)
  • Received : 2012.10.04
  • Accepted : 2012.11.23
  • Published : 2012.11.30
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Abstract

Ocean Thermal Energy Conversion(OTEC) technology is one of the new and renewable energy that utilizes the natural temperature gradient that exists in the tropical ocean between warm surface water and the deep cold water, to generate electricity. The selection of working fluid and the OTEC cycle greatly influence the effect on the system operation, and it's energy efficiency and impacts on the environment. Working fluids of the OTEC are ammonia, R22, R407C, and R410A. In this paper, we compared boiling pressure to optimize OTEC system at $25^{\circ}C$. Also, this paper showed net-power and efficiency according to working fluids for closed cycle and regeneration cycle.

OTEC기술은 신재생에너지 기술 중의 하나로 따듯한 표층수와 차가운 심층수의 온도차를 이용하여 전력을 생산하는 기술이다. 작동유체의 선정과 OTEC 사이클의 상태에 따라 에너지효율과 환경적인 측면에 많은 영향을 준다. OTEC의 작동유체로는 ammonia, R22, R407C, R410A가 있다. 본 논문에서는 OTEC 시스템의 최적화를 위해 $25^{\circ}C$에서의 증발압력를 비교하였다. 또한 밀폐사이클과 재생사이클에서의 작동유체에 따른 출력과 효율에 대하여 연구하였다.

Keywords

References

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