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

  • 제31권1호
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  • Pages.112-121
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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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열교환기 형식에 따른 열교환기의 에너지 및 엔트랜시 성능 특성 해석

Energy and Entransy Characteristic Analysis of Heat Exchangers Depending on Heat Exchanger Type

  • 김경훈 (금오공과대학교 기계공학과) ;
  • 정영관 (금오공과대학교 기계공학과) ;
  • 한철호 (금오공과대학교 기계시스템공학과)
  • KIM, KYOUNG HOON (Department of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • JUNG, YOUNG GUAN (Department of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • HAN, CHUL HO (Department of Mechanical System Engineering, Kumoh National Institute of Technology)
  • 투고 : 2020.01.30
  • 심사 : 2020.02.28
  • 발행 : 2020.02.28
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초록

In this work energy and entransy characteristics of heat exchangers are analyzed for 12 different flow arrangements of heat exchangers. The dimensionless parameters are number of entransy dissipation (Ng), number of entransy dissipation-based thermal resistance (Nr), and entransy dissipation-based effectiveness of heat-exchanger (εg). The dimensionless parameters are expressed analytically in terms of the effectiveness of heat exchanger (ε), heat capacity ratio (c), and number of transfer unit (N) for optimal performance of heat exchangers. Results showed that the dimensionless parameters based on the entransy dissipation can be useful concepts for optimal design of heat exchangers.

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참고문헌

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