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Thermoeconomic analysis of an ocean thermal energy conversion plant

Author

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  • Jung, Jung-Yeul
  • Lee, Ho Saeng
  • Kim, Hyeon-Ju
  • Yoo, Yungpil
  • Choi, Woo-Young
  • Kwak, Ho-Young

Abstract

A thermoeconomic analysis of an ocean thermal energy conversion (OTEC) system was performed using the modified productive structure analysis (MOPSA) method. In this analysis, the unit cost of electricity from the 20-kW OTEC pilot plant built and operated at the Korea Research Institute of Ships and Ocean Engineering was estimated. The unit cost of electricity from the OTEC plant with thermal efficiency of 0.66% is approximately $0.363/kWh. The unit cost of electricity of the OTEC plant increases linearly with the unit cost of supplied heat to the evaporator and increases inversely to the exergy efficiency of the system independently. The OTEC system was found to be economically viable renewable energy source in the regions where the temperature of warm sea water remains to be 25 °C and the condenser effluent from a power plant is available.

Suggested Citation

  • Jung, Jung-Yeul & Lee, Ho Saeng & Kim, Hyeon-Ju & Yoo, Yungpil & Choi, Woo-Young & Kwak, Ho-Young, 2016. "Thermoeconomic analysis of an ocean thermal energy conversion plant," Renewable Energy, Elsevier, vol. 86(C), pages 1086-1094.
    • Handle: RePEc:eee:renene:v:86:y:2016:i:c:p:1086-1094
    DOI: 10.1016/j.renene.2015.09.031
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    References listed on IDEAS

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    9. Yang, Min-Hsiung & Yeh, Rong-Hua, 2022. "Investigation of the potential of R717 blends as working fluids in the organic Rankine cycle (ORC) for ocean thermal energy conversion (OTEC)," Energy, Elsevier, vol. 245(C).
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