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Essais expérimentaux utilisant la désactivation de la circulation du fluide de refroidissement pour minimiser la formation de givre sur la surface de l’échangeur de chaleur.

Experimental tests using deactivation of coolant fluid circulation to mitigate frost formation on the heat exchanger surface.

Numéro : pap. n. 989

Auteurs : PANOIAS P., SILVA P. D., PIRES L., et al.

Résumé

The use of cold for conservation of food products requires large consumption of electricity. In order to obtain lower temperatures than those available in the same space, the evaporator coils, generally operate at temperatures lower than the freezing point of the water. The ice formed on the surface is detrimental both to the thermal and the energetic level of the refrigeration system. Thus, ice removal is critical to reestablish the desired operating conditions. This paper presents a refrigeration apparatus setup composed by two heat exchangers connected in parallel. The coolant fluid circulation is deactivated during short periods of operation, and the ice formation on the coil surface is analyzed. The results show that this strategic deactivation of coolant fluid circulation proved to be a viable operating condition since allowed an extension of the refrigeration system operation with a stable cooling power and so better thermal efficiency.

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Pages : 7

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    20 €

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    Gratuit

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Détails

  • Titre original : Experimental tests using deactivation of coolant fluid circulation to mitigate frost formation on the heat exchanger surface.
  • Identifiant de la fiche : 30026685
  • Langues : Anglais
  • Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Date d'édition : 24/08/2019
  • DOI : http://dx.doi.org/10.18462/iir.icr.2019.0989
  • Notes :

    Keynote


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