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Réduction de la consommation d’électricité d’un système frigorifique à compression pour le conditionnement d’air au moyen d’un système de déshumidification de l’air par absorption à commande thermique. 

Reduction of the electricity consumption of a compression refrigeration system for air conditioning by a preceding thermally driven absorptive air dehumidification system.

Numéro : 0859

Auteurs : MEYER T., RICART C.

Résumé

The cooling of air implies a sensible and a latent load for temperature and humidity reduction, respectively. The part required for the condensation of moisture is usually significant or even dominant. The dehumidification of air in a thermally-driven open absorption (desiccant) system followed by its cooling in a conventional chiller bears the potential for a large reduction of the electrical consumption of the process.   
In this paper, a methodology is introduced to calculate the specific electrical energy consumption per kilogram of chilled air of a conventional and a hybrid system for air conditioning applications. Potential electricity savings depending on ambient conditions are investigated.
Open Absorption dehumidification systems working with low grade heat sources at around 85°C can save up around 80% of the electicity demand in warm and humid climates (𝜑 = 0.8). But even in less humid climates (𝜑 = 0.4) the potential for electrical energy savings is similarly high in between 65 and 70% almost independently from the ambient temperature. 

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Format PDF

Pages : 12

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  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : Reduction of the electricity consumption of a compression refrigeration system for air conditioning by a preceding thermally driven absorptive air dehumidification system.
  • Identifiant de la fiche : 30031885
  • Langues : Anglais
  • Sujet : Technologie
  • Source : Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Date d'édition : 21/08/2023
  • DOI : http://dx.doi.org/10.18462/iir.icr.2023.0859

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