Study on the Thermal Characteristics of Organic Rankine Cycles for Use of Low-Temperature Heat Source

저온열원 활용을 위한 유기랭킨사이클의 열적 특성에 관한 연구

  • Jin, Jae-Young (Graduated School, Kumoh National Institute of Technology) ;
  • Kim, Kyoung-Hoon (Department of Mechanical Engineering, Kumoh National Institute of Technology)
  • 진재영 (금오공과대학교 대학원) ;
  • 김경훈 (금오공과대학교 기계공학과)
  • Published : 2011.04.07

Abstract

Low-grade waste heat has generally been discarded in industry due to lack of efficient recovery methods. In recent years, organic Rankine cycle(ORC) has become a field of intense research and appears as a promising technology for conversion of heat into useful work of electricity. In this work thermodynamic performance of ORC with superheating of vapor is comparatively assessed for various working fluids. Special attention is paid to the effects of system parameters such as the evaporating temperature on the characteristics of the system such as maximum possible work extraction from the given source, volumetric flow rate per 1 kW of net work and quality of the working fluid at turbine exit as well as thermal efficiency.

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