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Mass transfer in thermochemical solid/gas reactor for thermal storage applications.

Number: pap. n. 91

Author(s) : MAZET N., MICHEL B., BOULNOIS G., et al.

Summary

Solid/gas thermochemical processes are promising systems for high density thermal storage purposes (200 to 500 kWh.m-3). Two very different applications are analyzed: low temperature storage using SrBr2/H2O pair for spaceheating (80°C), and high temperature storage (500°C) using CaO/H2O pair for thermodynamic solar power plants. Mass transfer is a key issue for such high density beds. Thus, their permeabilities were investigated. For SrBr2/H2O beds, experimental and correlation-based studies highlighted the strong influence of bed energy density and reaction advancement on permeability and give the order of magnitude of these variations. For CaO/H2O beds, similar correlations allowed predicting the bed permeability variations. Experimental studies are in progress.

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Pages: 10 p.

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Details

  • Original title: Mass transfer in thermochemical solid/gas reactor for thermal storage applications.
  • Record ID : 30013907
  • Languages: English
  • Source: International sorption heat pump conference (ISHPC2014), College Park, United States, March 31-April 2, 2014.
  • Publication date: 2014/03/02

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