한국수소및신에너지학회논문집 (Transactions of the Korean hydrogen and new energy society)

  • 제24권1호
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  • Pages.91-97
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  • 2013
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
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유기 플래쉬 사이클(OFC)의 열역학적 성능 특성

Characteristics of Thermodynamic Performance of Organic Flash Cycle (OFC)

  • 김경훈 (금오공과대학교 기계공학과) ;
  • 정영관 (금오공과대학교 기계공학과) ;
  • 박상희 (금오공과대학교 기계공학과)
  • Kim, Kyounghoon (Department of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Jung, Youngguan (Department of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Park, Sanghee (Department of Mechanical Engineering, Kumoh National Institute of Technology)
  • 투고 : 2013.01.30
  • 심사 : 2013.02.28
  • 발행 : 2013.02.28
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초록

Recently a novel cycle named organic flash cycle (OFC) has been proposed which has improved potential for power generation from low-temperature heat sources. This study carries out thermodynamic performance analysis of OFC using various working fluids for recovery of low-grade heat sources in the form of sensible energy. Special attention is focused on the optimum flash temperature at which the exergy efficiency has the maximum value. Under the optimal conditions with respect to the flash temperature, the thermodynamic performances of important system variables including mass flow ratio, separation ratio, heat addition, specific volume flow rate at turbine exit, and exergy efficiency are thoroughly investigated. Results show that the exergy efficiency has a peak value with respect to the flash temperature and the optimum working fluid which shows the best exergy efficiency varies with the operating conditions.

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참고문헌

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피인용 문헌

  1. Characteristics of Thermodynamic Performance of Heat Exchanger in Organic Rankine Cycle Depending on Pinch Temperature Difference vol.26, pp.6, 2015, https://doi.org/10.7316/KHNES.2015.26.6.590