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Pompe à chaleur à adsorption compacte à efficacité élevée.

Compact high efficiency adsorption heat pump.

Numéro : pap. 2456

Auteurs : GROTENHUIS W. te, HUMBLE P., SWEENEY J.

Résumé

An innovative adsorption cycle heat pump technology is presented that is compact and capable of achieving high energy efficiency for integrated space heating, air conditioning, and water heating. High energy efficiency is accomplished by effectively recuperating heat within the system to minimize energy consumption. This substantially reduces the thermodynamic losses that occur when the sorbent beds are thermally cycled without effective heat recuperation. Furthermore, equipment cost is reduced by thermally cycling the sorbent beds very rapidly using embedded microchannel heat exchangers, which reduces size and cost of the beds. Performance of the cycle is assessed for ammonia refrigerant and carbon sorbent using two models to simulate a sorption compressor, a simplified lumped-parameter model and detailed finite element analysis. Results from the two models are compared for validation and also used to explore the effects of system configuration, bed geometry, and operating conditions. Primary energy coefficients of performance (COP) as high as 1.03 are predicted for cooling and 1.68 for heating at AHRI standard test conditions, assuming 90% fuel utilization and 3% parasitic power. Furthermore, a heating COP of 1.24 is feasible at -25°C outdoor temperature with no more than 50% reduction in heating capacity.

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 : Compact high efficiency adsorption heat pump.
  • Identifiant de la fiche : 30006790
  • Langues : Anglais
  • Source : 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 16/07/2012

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