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Cinétique de l'adsorption d'eau dans des granulés de SWS-1L dans les étages isobares des pompes à chaleur à adsorption : l'effet de l'air résiduel.

Kinetics of water adsorption on loose grains of SWS-1L under isobaric stages of adsorption heat pumps: the effect of residual air.

Auteurs : GLAZNEV I. S., ARISTOV Y. I.

Type d'article : Article

Résumé

In this paper, the authors studied the effect of a non-adsorbable gas (air) on kinetics of water adsorption on loose grains of the composite adsorbent SWS-1L (silica modified by calcium chloride), grain size 0.8-0.9 and 1.4-1.6 mm. The adsorbent grains were placed on the surface of isothermal metal plate at T = 60°C and equilibrated with the mixture of water vapour at P(H2O) = 10.3 mbar and air at a certain partial pressure P(A). After that the metal plate was subjected to a temperature drop down to 35°C at almost constant pressure over the grains. Reduction of the adsorption rate was revealed even at the partial pressure of residual air P(A) as low as 0.06 mbar. Desorption stage was less affected by the residual air. The specific cooling power generated during the isobaric adsorption stage was estimated as a function of the residual air pressure. [Reprinted with permission from Elsevier. Copyright, 2008].

Détails

  • Titre original : Kinetics of water adsorption on loose grains of SWS-1L under isobaric stages of adsorption heat pumps: the effect of residual air.
  • Identifiant de la fiche : 2009-0809
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 51 - n. 25-26
  • Date d'édition : 12/2008

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