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  • Title(Kor)
    LNG 냉열과 재생 유기 랭킨 사이클을 이용한 복합 사이클의 성능 특성 해석
  • Title(Eng)
    Performance Characteristics Analysis of Combined Cycle Using Regenerative Organic Rankine Cycle and LNG Cold Energy
  • Keyword
    Organic Rankine cycle(유기 랭킨 사이클), Regeneration(재생), Low grade heat source(저등급 열원), LNG(액화 천연가스), Cold energy(냉열)
  • Author(Kor)
    김경훈1⋅정영관1⋅한철호2,†
  • Author(Eng)
    KYOUNG HOON KIM1, YOUNG GUAN JUNG1, CHUL HO HAN2†
  • Date
    2020-04
  • Attach file
  • Page
    Page. 234~241
  • Abstract(Eng)
  • This paper presents a thermodynamic performance analysis of a combined cycle consisting of regenerative organic Rankine cycle (ORC) and liquefied natural gas (LNG) Rankine cycle to recover low-grade heat source and the cold energy of LNG. The mathematical models are developed and the system performances are analyzed in the aspect of thermodynamics. The effects of the turbine inlet pressure and the working fluid on the system performance such as the mass flow rates, heat transfers at heat exchangers, power productions at turbines, and thermal efficiency are systematically investigated. The results show that the thermodynamic performance of ORC such as net power production and thermal efficiency can be significantly improved by the regenerative ORC and the LNG cold energy.