Partager

Simulation et étude expérimentale sur le procédé d'évaporation instantanée d'une solution de LiBr/H2O dans une pompe à chaleur à absorption.

Simulation and experimental study on flash evaporation process of LiBr/H2O solution in absorption heat pump.

Numéro : pap. n. 99

Auteurs : ZHENG S., XIE X., JIANG Y.

Résumé

Recently, more and more absorption heat pumps have been applied in district heating systems, especially with industrial waste heat as the driven source. Flashing is an alternative for generator in this kind of heat pumps. Thus, the performance of LiBr solution flashing process in absorption heat pumps was discussed in this paper. The heat and mass transfer model was established in the paper for solution flashing process. The influences of various factors including inlet LiBr temperature, concentration and condensation pressure on the temperature and concentration distribution along the spraying columns of solution were studied.
Also the flashing experiments on the absorption heat and mass transfer test bench has been constructed. Experimental results show the flashing amount in different parts. Depending on the experimental results as well as the mathematical model, the average mass transfer coefficient for 18 different experimental conditions is obtained. The results can be used to help design the flashing generation process in absorption heat pumps.

Documents disponibles

Format PDF

Pages : 9 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

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

Détails

  • Titre original : Simulation and experimental study on flash evaporation process of LiBr/H2O solution in absorption heat pump.
  • Identifiant de la fiche : 30013896
  • Langues : Anglais
  • Source : International sorption heat pump conference (ISHPC2014), College Park, United States, March 31-April 2, 2014.
  • Date d'édition : 02/03/2014

Liens


Voir d'autres communications du même compte rendu (125)
Voir le compte rendu de la conférence

Indexation