Partager

Document IIF

Etude dynamique de la congélation de la viande avec divers modes de cryotraitement.

Investigations of the dynamics of meat freezing at various modes of cryotreatment.

Numéro : pap. n. 755

Auteurs : SHINBAYEVA A., ALDIYAROV A., ARKHAROV I., et al.

Résumé

The paper presents the results of an experimental investigation of the dynamics of freezing meat products samples at different modes of low-temperature treatment. The measurements were performed using a system of thermocouples which is inserted into the sample at a fixed distance as among them, and relatively a surface of the investigated sample which allow getting a 2D temperature distribution. Temperature measurements were carried out using a temperature controller TC 325 (Lake Shore). Investigations were conducted in two modes of cryotreatment. In the first experiment the sample is plunged directly in the liquid nitrogen, and the temperature distribution over the sample volume was measured. In the second case, cryotreatment was performed in a specially designed measuring cell, allowing except for dynamic researches to measure the thermal conductivity of the meat samples. Thus, in the second case, cooling was performed during mechanical and thermal contact of the sample with the cooled substrate. During the measurements it was shown that the process of freezing the samples has nonlinear time dependence with a characteristic minimum at a particular temperature. It is assumed that this is due to the change in the value of coefficient of the thermal conductivity of the sample during the movement of the crystallization front in the cooling process.

Documents disponibles

Format PDF

Pages : 8 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Investigations of the dynamics of meat freezing at various modes of cryotreatment.
  • Identifiant de la fiche : 30015491
  • Langues : Anglais
  • Source : Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
  • Date d'édition : 16/08/2015
  • DOI : http://dx.doi.org/10.18462/iir.icr.2015.0755

Liens


Voir d'autres communications du même compte rendu (657)
Voir le compte rendu de la conférence

Indexation