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Amélioration de l'efficacité de la phase transfert de chaleur dans les systèmes à sorption solide ou dans les systèmes à réaction.

Increase of the efficiency of the heat transfer phase in solid sorption or reaction systems.

Auteurs : ZIEGLER F., SATZGER P.

Type d'article : Article

Résumé

An important drawback of solid sorption systems which are operated in batch mode against liquid sorption systems is the imperfect heat exchange between loaded and unloaded adsorbent, as compared to the almost perfect counter-flow solution heat exchanger. The authors discuss a simple hardware solution for a significant improvement and divide the batch reactors into several compartments, not with respect to the refrigerant side, but with respect to the heat transfer medium (heat exchanger loop). If these compartments have individual and arbitrary heat exchange possibilities with each other, the efficiency of heat recovery can be improved from a co-flow characteristic to a cross-flow characteristic. The authors want to stress that this is different from a multibed or multistage arrangement. The method is explained, and an algorithm for deriving the exchange efficiency is given. Although this paper is only meant for outlining the basic mechanism, a proposition for realisation of the external hydronic circuit is given in addition.

Détails

  • Titre original : Increase of the efficiency of the heat transfer phase in solid sorption or reaction systems.
  • Identifiant de la fiche : 2006-1213
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of thermal Sciences - vol. 44 - n. 12
  • Date d'édition : 12/2005

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