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Détérioration de la qualité et modélisation numérique des fluctuations de température des filets de cabillaud entreposés dans des boîtes sur des palettes sous des conditions de température dynamiques.

Quality deterioration and numerical modelling of temperature fluctuations of chilled cod fillets packaged in different boxes stored on pallets under dynamic temperature conditions.

Numéro : pap. S11-P4

Auteurs : MARGEIRSSON B., PÁLSSON H., ARASON S., et al.

Résumé

Temperature variations in cod fillets packaged in four levels of expanded polystyrene (EPS) boxes and corrugated plastic (CP) boxes stored on pallets under thermal load were studied numerically and experimentally. In the experiment, fillet temperatures at multiple positions on the pallets along with environmental temperature were monitored. Differences in product temperature of up to 10.5°C were recorded on the thermally abused pallets stored for 6.4 hours at a mean ambient temperature of 18.5°C. Transient heat transfer models were also developed using the ANSYS FLUENT CFD software. A satisfactory agreement was seen between experimental and numerical results. The EPS box model was further developed in order to simulate temperature evolution inside a fully loaded 12-level pallet under the same temperature conditions as a four-level pallet studied before. The mean temperature after 9-hour thermal load was 1.0°C lower in the 12-level pallet but the maximum temperature evolution was similar in both pallets. Parallel to this, a storage life study was carried out to evaluate the effect of the fish temperature variation on quality deterioration of the cod fillets as influenced by the box type used and their position on pallets. Storage life of thermally abused fillets was compared to that of fillets stored at steady temperature. Compared to steady temperature storage, a storage life reduction of 1.5 to 3 days was observed, depending on the box position on the abused pallets

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Pages : 9 p.

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    20 €

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    Gratuit

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Détails

  • Titre original : Quality deterioration and numerical modelling of temperature fluctuations of chilled cod fillets packaged in different boxes stored on pallets under dynamic temperature conditions.
  • Identifiant de la fiche : 30007321
  • Langues : Anglais
  • Source : 2nd IIR International Conference on Sustainability and the Cold Chain. Proceedings: Paris, France, April 2-4, 2013.
  • Date d'édition : 02/04/2013

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