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Document IIF

Analyse et optimisation de performance de systèmes de conditionnement d'air hybrides à déshydratant liquide entrainés par une pompe à chaleur.

Performance analysis and optimization of heat pump driven liquid desiccant hybrid air-conditioning systems.

Numéro : pap. n. 223

Auteurs : CHEN Y., ZHANG X., YIN Y.

Résumé

Heat pump driven liquid desiccant (HPLD) hybrid air-conditioning systems have been broadly used in hot and humid areas. However, it is difficult to evaluate and improve their performance, since structures of the HPLD systems are complex. In this paper, a systematical way to evaluate and improve the HPLD system is introduced. A novel HPLD-SR system is firstly proposed, and three different structures are analyzed with the first and second laws of thermodynamics. A validated numerical model for system simulation is used, and a new exergy calculation formulation of LiCl solution is presented, in the form of separate Gibbs energy equations. The results show that for system with solution self-cycles, its ECOPsys and exergy efficiency are 38.5% and 38.7% higher than that of the basic system. However, the system with double-stage dehumidification process shows the best performance. Its ECOPsys and exergy efficiency have increased to 4.81 and 0.162, respectively.

Documents disponibles

Format PDF

Pages : 8 p.

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 : Performance analysis and optimization of heat pump driven liquid desiccant hybrid air-conditioning systems.
  • Identifiant de la fiche : 30015869
  • Langues : Anglais
  • Source : Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
  • Date d'édition : 16/08/2015
  • DOI : http://dx.doi.org/10.18462/iir.icr.2015.0223

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