Partager

Document IIF

Évaluation expérimentale d’un couple d’échangeurs de chaleur et de masse à film tombant à plaque détachable couplé utilisant le bromure de lithium et l'eau comme fluides actifs.

Experimental assessment of a detachable plate falling film heat and mass exchanger couple using lithium bromide and water as working fluids.

Numéro : pap. n. 1563

Auteurs : HU T., YI Y., XIE X., et al.

Résumé

Massiveness and cost have impeded the promotion of absorption heat pump (AHP) system for a long time. An improved detachable plate falling film heat and mass exchanger (HMX) couple using lithium bromide (LiBr) and water as working fluids is proposed and a resulting prototype is experimentally assessed. The HMX couple can work as either a generator-condenser couple, or an absorber-evaporator couple in an AHP using LiBr and water as working fluid. In generatorcondenser condition, overall heat and mass transfer coefficients of the generator were 0.607~1.008 kW×m-2×K-1 and 4.4×10-5~18.4×10-5 m×s-1 respectively, and overall heat transfer coefficient of the condenser varies from 0.372 to 1.466 kW×m-2×K-1; in absorber-evaporator condition, overall heat and mass transfer coefficients of the generator were 0.235~0.422 kW×m-2×K-1 and 0.7×105~1.5×10-5 m×s-1 respectively, and overall heat transfer coefficient of the condenser varies from 0.785 to 1.173 kW×m-2×K-1. The experimental results of the HMX couple prototype show feasibility to scale down the size of AHP, and promote application of absorption technology accordingly.

Documents disponibles

Format PDF

Pages : 9

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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

Détails

  • Titre original : Experimental assessment of a detachable plate falling film heat and mass exchanger couple using lithium bromide and water as working fluids.
  • Identifiant de la fiche : 30026126
  • Langues : Anglais
  • Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Date d'édition : 24/08/2019
  • DOI : http://dx.doi.org/10.18462/iir.icr.2019.1563

Liens


Voir d'autres communications du même compte rendu (632)
Voir le compte rendu de la conférence

Indexation