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Analyse numérique d'un cycle frigorifique à absorption à double effet utilisant un couple actif au gel de silice / eau.

Numerical analysis of double effect adsorption refrigeration cycle using silica-gel/water working pair.

Numéro : pap. P10

Auteurs : UYUN M. A. S., MIYAZAKI T., UEDA Y., et al.

Résumé

In this paper, an analytic investigation of double effect adsorption refrigeration cycle utilizing condensation heat is discussed. This model consists of two cycles, high temperature cycle (HTC) which is driven from external heat sources, and low temperature cycle (LTC) which is driven by condensation waste heat from HTC. Both of HTC and LTC are using silica gel as adsorbent and water as refrigerant. The effect of heat source temperature on cycle performance is investigated in terms of coefficient of performance (COP) and specific cooling power (SCP). Simulation results show that the value of COP and SCP increase when the heat source temperature increase. These results are also compared with conventional single-stage adsorption cycle performance. When the cyclic average chilled water temperature was fixed at 9ºC, and with similar operating conditions, it was found that double effect cycles produce higher COP than conventional single-stage cycle for driven temperature observed between 90-150ºC. Moreover, it is also observed that adsorbent mass ratio of HTC and LTC affect the performance of chiller.

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 : Numerical analysis of double effect adsorption refrigeration cycle using silica-gel/water working pair.
  • Identifiant de la fiche : 30000605
  • Langues : Anglais
  • Source : Measures to address climate change. 2010 International Symposium on Next-generation Air Conditioning and Refrigeration Technology: February 17-19, Tokyo, Japan.
  • Date d'édition : 17/02/2010

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