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Analysis of optimization in an OTEC plant using organic Rankine cycle

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  • Yang, Min-Hsiung
  • Yeh, Rong-Hua

Abstract

This study quantified the effects of evaporation temperature, condensation temperature, and the inlet- and outlet-temperature differences of deep cold seawater and warm seawater on the performance of an ocean thermal energy conversion (OTEC) plant using an organic Rankine cycle (ORC), and also investigated the optimal operations required for the performance. A finite-temperature-difference heat transfer method is developed to evaluate the objective parameter, which is the ratio of net power output to the total heat transfer area of heat exchanger in the system, and R717, R600a, R245fa, R152a, and R134a were used as the working fluids. The optimal evaporation and condensation temperatures were obtained under various conditions for maximal objective parameters in an OTEC system.

Suggested Citation

  • Yang, Min-Hsiung & Yeh, Rong-Hua, 2014. "Analysis of optimization in an OTEC plant using organic Rankine cycle," Renewable Energy, Elsevier, vol. 68(C), pages 25-34.
    • Handle: RePEc:eee:renene:v:68:y:2014:i:c:p:25-34
    DOI: 10.1016/j.renene.2014.01.029
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    References listed on IDEAS

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