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Enhancement of heat and mass transfer in silica-expanded graphite composite blocks for adsorption heat pumps. 1. Characterization of the composite blocks.

Author(s) : EUN T. H., SONG H. K., HAN J. H., et al.

Type of article: Article, IJR article

Summary

Composite blocks for adsorption heat pumps of water/silica gel systems were manufactured by mixing expanding graphite powders and silica gel powders, then by consolidating them via compressive molding. Optimum expansion condition was determined as 600 °C for 10 minutes by investigating carbon and sulfur contents during expansion. Amounts of water adsorption, gas permeability and thermal conductivity were measured for the composite blocks prepared with various compositions and molding pressures. Expanded graphite in the composite blocks had no effects on the equilibrium adsorption amount of water on silica gel and increased the rate of adsorption.

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Pages: 64-73

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Details

  • Original title: Enhancement of heat and mass transfer in silica-expanded graphite composite blocks for adsorption heat pumps. 1. Characterization of the composite blocks.
  • Record ID : 2000-0739
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 23 - n. 1
  • Publication date: 2000/01

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