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

  • 제31권4호
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  • Pages.363-371
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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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LNG 냉열을 이용하는 암모니아-물 랭킨 사이클과 유기 랭킨 사이클의 열역학적 성능 특성 해석

Thermodynamic Performance Analysis of Ammonia-Water Rankine Cycle and Organic Rankine Cycle Using Cold Energy of LNG

  • 김경훈 (금오공과대학교 기계공학과)
  • KIM, KYOUNG HOON (Department of Mechanical Engineering, Kumoh National Institute of Technology)
  • 투고 : 2020.07.06
  • 심사 : 2020.08.30
  • 발행 : 2020.08.30
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초록

Recently, the technologies to utilize the cold energy of liquefied natural gas (LNG) have attracted significant attention. In this paper, thermodynamic performance analysis of combined cycles consisting of ammonia Rankine cycle (AWR) and organic Rankine cycle (ORC) with LNG Rankine cycle to recover low-grade heat source and the cold energy of LNG. The mathematical models are developed and the effects of the important system parameters such as turbine inlet pressure, ammonia mass fraction, working fluid on the system performance are systematically investigated. The results show that the thermal efficiency of AWR-LNG cycle is higher but the total power production of ORC-LNG cycle is higher.

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참고문헌

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