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The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Comparative Thermodynamic Analysis of Organic Rankine Cycle and Ammonia-Water Rankine Cycle

유기랭킨사이클과 암모니아-물 랭킨사이클의 열역학적 성능의 비교 해석

  • KIM, KYOUNG HOON (Department of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • KIM, MAN-HOE (School of Mechanical Engineering, Kyungpook National University)
  • 김경훈 (금오공과대학교 기계공학과) ;
  • 김만회 (경북대학교 기계공학부)
  • Received : 2016.09.19
  • Accepted : 2016.10.30
  • Published : 2016.10.30
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Abstract

In this paper a comparative thermodynamics analysis is carried out for organic Rankine cycle (ORC) and ammonia-water Rankine cycle (AWRC) utilizing low-grade heat sources. Effects of the working fluid, ammonia concentration, and turbine inlet pressure are systematically investigated on the system performance such as mass flow rate, pressure ratio, turbine-exit volume flow, and net power production as well as the thermal efficiency. Results show that ORC with a proper working fluid shows higher thermal efficiency than AWRC, however, AWRC shows lower mass flow rate of working fluid and lower pressure ratio of expander than ORC.

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References

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