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

  • 제31권1호
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  • Pages.105-111
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  • 2020
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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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저등급 열원의 변환을 위한 칼리나 사이클과 유기 랭킨 사이클의 엑서지 성능의 비교 해석

Comparative Exergy Analysis of Kalina and Organic Rankine Cycles for Conversion of Low-Grade Heat Source

  • 김경훈 (금오공과대학교 기계공학과) ;
  • 정영관 (금오공과대학교 기계공학과) ;
  • 고형종 (금오공과대학교 기계공학과)
  • KIM, KYOUNG HOON (Department of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • JUNG, YOUNG GUAN (Department of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • KO, HYUNG JONG (Department of Mechanical Engineering, Kumoh National Institute of Technology)
  • 투고 : 2020.01.29
  • 심사 : 2020.02.28
  • 발행 : 2020.02.28
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초록

The organic Rankine cycle (ORC) and the Kalina cycle system (KCS) are being considered as the most feasible and promising ways to recover the low-grade finite heat sources. This paper presents a comparative exergetical performance analysis for ORC and Kalina cycle using ammonia-water mixture as the working fluid for the recovery of low-grade heat. Effects of the system parameters such as working fluid selection, turbine inlet pressure, and mass fraction of ammonia on the exergetical performance are parametrically investigated. KCS gives lower lower exergy destruction ratio at evaporator and higher second-law efficiency than ORC. The maximum exergy efficiency of ORC is higher than KCS.

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참고문헌

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