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Un nouveau système de pompe à chaleur à déshydratant solide semi-couplé - Partie 1 : Étude de simulation.

A novel semi-coupled solid desiccant heat pump system - Part 1: Simulation study.

Auteurs : YANG T. Y., GE T. S., LU F. L., WANG R. Z.

Type d'article : Article de la RIF

Résumé

Solid desiccant heat pump system (SDHP) can handle sensible and latent heat load simultaneously with high coefficient of performance (COP). However, in such system, supply air temperature is relatively high and unstable due to the frequent switch between desiccant coated heat exchanger as evaporator and condenser. In order to overcome these drawbacks, the concept of semi-coupled solid desiccant heat pump (SCSDHP) system is proposed in this paper, then a mathematical model is established to investigate the feasibility of this novel system. Calculation shows that under ARI (Air-conditioning and Refrigeration Institute) summer condition silica gel coating with density of 0.25 kg m−2 is optimal, and area ratio between desiccant coated evaporator and conventional evaporator of 1:1 is recommended. Furthermore, compared with conventional SDHP system, supply air temperature can be 4.5~7°C lower and the variation range of supply air temperature decreases by 16~21°C. Also, effects of main operating parameters including the temperature and relative humidity of outdoor air on the performance of SCSDHP system are investigated.

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Format PDF

Pages : 150-160

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 : A novel semi-coupled solid desiccant heat pump system - Part 1: Simulation study.
  • Identifiant de la fiche : 30027851
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 120
  • Date d'édition : 12/2020
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2020.09.005
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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