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Analyse de la cinétique d'adsorption de l'eau sur du gel de silice dans deux configurations de réacteurs tubulaires.

Adsorption kinetics analysis of water on silica gel in two configurations of tubular reactors.

Numéro : pap. n. 774

Auteurs : MELO H., VODIANITSKAIA P. J., SANTOS J., et al.

Résumé

Tubular adsorption reactors have been used in solar cooling systems since 1983. The original design consisted in a metal screen tube concentrically inserted into a copper tube; granules of solid adsorbent are packed in the space between the two tubes. Two experimental setups were used to measure the degree of contribution provided by radial adsorbate flow through the metal screen on adsorption kinetics: the first setup was composed by a tube fully filled with adsorbent, resulting in mainly axial adsorbate flow, while the second one was composed by an external tube with an internal, coaxial metal mesh tube leading to free adsorbent flow lengthwise, resulting in predominant radial flow through the adsorbent bed. The adsorption working pair was constituted by silica gel and water. This particular pair is preferred for adsorption chillers due to its superior thermodynamic characteristics. Temperature and mass measurements were made along the adsorption process to compare the heat and mass transfers obtained with each reactor configuration.

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Pages : 6 p.

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Détails

  • Titre original : Adsorption kinetics analysis of water on silica gel in two configurations of tubular reactors.
  • Identifiant de la fiche : 30015395
  • Langues : Anglais
  • Source : Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
  • Date d'édition : 16/08/2015
  • DOI : http://dx.doi.org/10.18462/iir.icr.2015.0774

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