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Evaluation de la performance frigorifique d'un lit réactif composé de graphite expansé et de chlorure de calcium utilisé dans une machine à glace à sorption chimique.

Evaluation of the cooling performance of a consolidated expanded graphite-calcium chloride reactive bed for chemisorption icemaker.

Auteurs : OLIVEIRA R. G., WANG R. Z., WANG C.

Type d'article : Article, Article de la RIF

Résumé

The cooling performance of a consolidated composite reactive bed made from expanded graphite impregnated with CaCl2 was experimentally assessed under different evaporation and heat sink temperatures. The compound presented a specific cooling power (SCP) higher than 1000 W/kg(salt) at several studied conditions. The calculated COP was about 0.35 when the amount of refrigerant consumed in the reaction was 0.80 kg/kg(salt). Both SCP and COP changed with the cycle time, and thus, with the degree of the reaction. The synthesis time to maximise the SCP, under any studied condition, was about 5 min, and the absorbed quantity greatly varied among the different operation conditions. When compared to the time necessary to obtain an absorbed amount of 0.80 kg/kg(salt), the synthesis time of 5 min could improve the SCP in about 15-68%, however, COP would be deployed in about 14-50%.

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Pages : 103-112

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    20 €

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    Gratuit

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Détails

  • Titre original : Evaluation of the cooling performance of a consolidated expanded graphite-calcium chloride reactive bed for chemisorption icemaker.
  • Identifiant de la fiche : 2006-3042
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 30 - n. 1
  • Date d'édition : 01/2007

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