Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Simulation of the Kalina cycle for a Geothermal Power Generation

지열발전을 위한 칼리나 사이클의 시뮬레이션

  • Baik, Young-Jin (Geothermal Energy Research Center, Korea Institute of Energy Research(KIER)) ;
  • Kim, Min-Sung (Geothermal Energy Research Center, Korea Institute of Energy Research(KIER)) ;
  • Chang, Ki-Chang (Geothermal Energy Research Center, Korea Institute of Energy Research(KIER)) ;
  • Lee, Young-Soo (Geothermal Energy Research Center, Korea Institute of Energy Research(KIER)) ;
  • Park, Seong-Ryong (Geothermal Energy Research Center, Korea Institute of Energy Research(KIER)) ;
  • Ra, Ho-Sang (Geothermal Energy Research Center, Korea Institute of Energy Research(KIER))
  • 백영진 (한국에너지기술연구원 지열에너지연구센터) ;
  • 김민성 (한국에너지기술연구원 지열에너지연구센터) ;
  • 장기창 (한국에너지기술연구원 지열에너지연구센터) ;
  • 이영수 (한국에너지기술연구원 지열에너지연구센터) ;
  • 박성룡 (한국에너지기술연구원 지열에너지연구센터) ;
  • 라호상 (한국에너지기술연구원 지열에너지연구센터)
  • Published : 2008.06.25
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Abstract

The Kalina cycle simulation study was carried out for a preliminary design of a geothermal power generation system. The Kalina cycle system can be used for the utilization of a low-temperature heat sources such as geothermal and industrial waste heat that are not hot enough to produce steam. The sea/river water can be considered as a cooling media. A steady-state simulation model was developed to analyze and optimize its performance. The model contains a turbine, a pump, an expansion valve and heat exchangers. The turbine and pump were modelled by an isentropic efficiency, while a condenser, an evaporator and a regenerative heat exchanger were modeled by UA-LMTD method with a counter-flow assumption. The simulation results show that the power generation efficiency over 10% is expected when a heat source and sink inlet temperatures are $100^{\circ}C$ and $10^{\circ}C$ respectively.

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