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Amélioration du transfert de chaleur et de masse grâce à une structure alternée de tubes et de creux longitudinaux remplis de mousse métallique pour [un absorbeur de] solution au bromure de lithium.

Enhanced heat and mass transfer in alternating structure of tubes and longitudinal trough mesh packing in lithium bromide solution absorber.

Auteurs : WU J., YI Z., CHEN Y., et al.

Type d'article : Article, Article de la RIF

Résumé

For enhancing the vapour absorption in LiBr solution systems, a novel absorber with tube and mesh packing alternating structure is designed and investigated. Stainless steel mesh screens are folded as the longitudinal trough mesh packing, and inserted to the gaps of horizontal tubes to make the absorbent flow through the tube and mesh packing regimes successively, thus forming an alternating heat and mass transfer absorption process. Experimental investigation is conducted to characterize the absorption performance of the absorption bodies of this alternating structure and conventional horizontal coils. The results show that the average mass transfer rate and cooling load are increased by 17.2% and 6.23% respectively, which confirms that the alternating structures can promote the absorption. The mesh packing provides extended absorption area, slows down the flow and well mingles the solution, which are all beneficial for vapour absorption.

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Format PDF

Pages : 34-41

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    20 €

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    Gratuit

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Détails

  • Titre original : Enhanced heat and mass transfer in alternating structure of tubes and longitudinal trough mesh packing in lithium bromide solution absorber.
  • Identifiant de la fiche : 30014039
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 53
  • Date d'édition : 05/2015

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