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Parametric studies on a metal hydride thermal storage system.

Author(s) : MUTHUKUMAR P., MAIYA M. P., SRINIVASA MURTHY M. S.

Summary

The paper discusses the performance of a metal hydride thermal storage system based on the heat and mass transfer characteristics of the reactor. The influence of operating parameters such as supply and discharge pressures, absorption (heat release) temperatures, and bed parameters such as hydride bed thicknesses, overall heat transfer coefficient and bed thermal conductivity on system performance is predicted. Nickel doped MgH2-Mg, which can store heat from 550 to 700 K is chosen for the analysis. An optimum heat release temperature exists for a given supply pressure. Higher thermal energy storage coefficients are observed at low heat release temperatures. Exergy efficiency has significant effect on heat release time particularly when supply pressure is below 2.5 bar and heat release temperature is above 570 K.

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Details

  • Original title: Parametric studies on a metal hydride thermal storage system.
  • Record ID : 2004-1198
  • Languages: English
  • Source: 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
  • Publication date: 2003/08/17

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