Influence des conditions opératoires sur la performance thermique d'un meuble frigorifique de vente fermé
| Autor: | Alain Denis, Denis Flick, Onrawee Laguerre, Nattawut Chaomuang |
|---|---|
| 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)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-AgroParisTech-Conservatoire National des Arts et Métiers [CNAM] (CNAM), Ingénierie, Procédés, Aliments (GENIAL), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, King Mongkut's Institute of Technology Ladkrabang, Thailand, National Research Institute of Science and Technology for Environment and Agriculture, France, French Embassy in Thailand |
| Rok vydání: | 2019 |
| Předmět: |
TEMPERATURE DECREASE
Experimental study 020209 energy Mechanical Engineering Thermal performance Temperature 02 engineering and technology Building and Construction Mechanics MEUBLE FRIGORIFIQUE DE VENTE FERME Ambient air Door-opening frequency Door opening 020401 chemical engineering FREQUENCE D'OUVERTURE DE LA PORTE [SDE]Environmental Sciences Test room PERFORMANCE THERMIQUE 0202 electrical engineering electronic engineering information engineering ETUDE EXPERIMENTALE Environmental science Closed refrigerated display cabinet Display cabinet 0204 chemical engineering |
| Zdroj: | International Journal of Refrigeration International Journal of Refrigeration, Elsevier, 2019, 103 (103), pp.32-41. ⟨10.1016/j.ijrefrig.2019.03.031⟩ |
| ISSN: | 0140-7007 |
| DOI: | 10.1016/j.ijrefrig.2019.03.031 |
| Popis: | International audience; An experimental study was performed in order to investigate the effects of operating conditions, including door opening frequency, ambient air temperature and product-occupied volume, on the air and product temperature distributions inside a closed refrigerated display cabinet. The product position in the cabinet is a determining factor of its temperature: a high temperature was observed at the front, particularly at the top of the cabinet, and a low temperature was observed at the back. Air infiltration due to door openings caused a product temperature increase at the front and a temperature decrease at the back. At a higher door opening frequency (more than 60 openings per hour per door), the product temperature at the level of the front middle shelf was the most affected. Both the ambient temperature and occupied volume also affected product temperature variations in the closed display cabinet. In comparison to an open display cabinet, a closed display cabinet achieves lower product temperature and better temperature homogeneity, even with a high door-opening frequency. These findings indicate that the use of closed refrigerated display cabinets should be advocated in order to achieve better food preservation. |
| Databáze: | OpenAIRE |
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