Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Performance Analysis of 1MW Organic Rankine Cycle with Liquid-Vapor Ejector using Effluent from Power Plant

화력발전소 폐열에 따른 작동유체별 액-증기 이젝터를 적용한 1MW급 ORC의 성능 분석

  • Kim, Hyeon-Uk (Graduate school of Refrigeration and Air Conditioning Engineering, Pukyoung University) ;
  • Yoon, Jung-In (Department of Refrigeration and Air Conditioning Engineering, Pukyoung University) ;
  • Son, Chang-Hyo (Department of Refrigeration and Air Conditioning Engineering, Pukyoung University)
  • 김현욱 (부경대 냉동공조공학과 대학원) ;
  • 윤정인 (부경대 냉동공조공학과) ;
  • 손창효 (부경대 냉동공조공학과)
  • Received : 2014.11.10
  • Accepted : 2014.11.28
  • Published : 2014.12.31
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Abstract

In this paper, suitable working fluid of 1MW Organic Rankine Cycle(ORC) with liquid-vapor ejector using effluent from power plant is selected. The results of comparison performance of 5 refrigerants are as follows; R600a, R134a, R1270, R236fa, R235fa. The operating parameters considered in this study include the condensation capacity evaporation capacity and efficiency. As a result of comparison of basic ORC system and with liquid-vapor ejector, with ORC system presents the higher system efficiency since the ejector makes the turbine outlet pressure lower than condensation pressure through its pressure recovery. Also, this ejector ORC system is advantageous in miniaturizing the size of components owing to decrease of evaporation capacity and condensation capacity.

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References

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