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Theoretical model construction for renewable low-grade thermal energy conversion: an insight from finite-time thermodynamics.

Number: 1185

Author(s) : YASUNAGA T., IKEGAMI Y.

Summary

The power production from low-enthalpy geothermal energy and the ocean thermal gradient, which use the finite temperature and finite flow rate of the heat source, has unique thermodynamic characteristics. Finite-time thermodynamics is one of the keys to analyzing the basics of the cycles in terms of performance. This study summarizes the former research on finite-time thermodynamics applied to low-grade thermal energy, including the Rankine cycle, and discusses the application to the performance analysis of the total system, components, and optimum operation and design optima in terms of engineering. In addition, pilot test results using a 30-kW ocean thermal energy conversion pilot test bench are analyzed and compared with results of parametric analysis and finite-time thermodynamic basis analysis to verify the thermodynamics theory.

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Pages: 9

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Details

  • Original title: Theoretical model construction for renewable low-grade thermal energy conversion: an insight from finite-time thermodynamics.
  • Record ID : 30027751
  • Languages: English
  • Subject: Technology
  • Source: IIR Rankine Conference 2020.
  • Publication date: 2020/07/31
  • DOI: http://dx.doi.org/10.18462/iir.rankine.2020.1185

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