Zone humidifiée pour un système de régénération à déshydratant liquide et à film tombant.

Wetted area for falling film liquid desiccant regeneration system.

Numéro : pap. 1083

Auteurs : QI R. H., LU L., YANG H. X., et al.


The falling film liquid desiccant system is a promising type for liquid/gas contacting. However, the incomplete wetting was found in many previous studies, and the value is difficult to predict. In this paper, with a single channel internally heated regenerator, the influencing factors of the wetted area were experimentally investigated. The increase of wetted area benefits the mass transfer greatly. The thickness of solution distributor showed the greatest effect on the wetted area. In incomplete wetting conditions, the wetted area increased with the mass flow rate of solution proportionally. The effects of solution temperature and concentration were small, and the impacts of air and water could be neglected. Based on the experimental results, a model was developed, for predicting the wetted area of the falling film. The results obtained by this model were compared with experimental results, showing an average error of 8.74%. This research is useful for both researchers and engineers, and could effectively improve the accuracy of simulations.

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Format PDF

Pages : 9 p.


  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)


  • Titre original : Wetted area for falling film liquid desiccant regeneration system.
  • Identifiant de la fiche : 30010482
  • Langues : Anglais
  • Source : Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
  • Date d'édition : 16/06/2013


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