Experimental characterization of airflow within a pallet of product generating heat: Application for cheese product
| Autor: | Denis Flick, Jean Moureh, Anh Thu Pham |
|---|---|
| Přispěvatelé: | Génie des procédés frigorifiques (UR GPAN), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Ingénierie, Procédés, Aliments (GENIAL), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Centre National Interprofessionnel de l'Economie Laitière [Paris] (CNIEL) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Air velocity
Work (thermodynamics) Airflow Transfert de chaleur Distribution de température 040501 horticulture 0404 agricultural biotechnology Combined forced and natural convection Heat transfer Produit générateur de chaleur Configuration du débit d’air Mixed convection Pallet Mechanical Engineering [SPI.FLUID]Engineering Sciences [physics]/Reactive fluid environment Convection mixte 04 agricultural and veterinary sciences Building and Construction Mechanics 040401 food science Forced convection Temperature distribution Heat generation Product (mathematics) Environmental science Heat-generating product 0405 other agricultural sciences Airflow pattern |
| Zdroj: | International Journal of Refrigeration International Journal of Refrigeration, Elsevier, 2019, 106, pp.89-103. ⟨10.1016/j.ijrefrig.2019.06.022⟩ |
| ISSN: | 0140-7007 |
| DOI: | 10.1016/j.ijrefrig.2019.06.022⟩ |
| Popis: | International audience; This work aimed to investigate the airflow and temperature levels within a pallet of heat-generating product under steady-state conditions. A cheese product was simulated. An experimental device was used in which cheese was replaced by plaster camembert cheeses; each simulated camembert was equipped with a heating resistance to simulate heat generation by the product. The pallet was placed in an experimental room with controlled upwind temperature and air velocity. The air velocity within the pallet was measured by LDV (Laser Doppler Velocimetry). Two pallet orientations, two upwind velocities of 0.31 m s −1 and 0.73 m s −1 and two heat fluxes of 0.05 W and 0.30 W per product item with a mass of 0.25 kg were investigated and compared. This study provides a better understanding of the complexity of the airflow pattern related to natural and forced convection flows as well as the dynamic interactions under mixed convection. It can be applied to other living products such as fruit or vegetables that generate heat via respiration. |
| Databáze: | OpenAIRE |
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