Improvement of air distribution in refrigerated vertical open front remote supermarket display cases |
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Authors: | I Gray P Luscombe L McLean CSP Sarathy P Sheahen K Srinivasan |
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Affiliation: | aFrigrite Refrigeration Pty. Ltd, 27 Grange Road, Cheltenham, Vic. 3192, Australia |
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Abstract: | This paper presents some of the results derived from extensive experimentation on display cases for supermarkets and derives some possible improvements to augment temperature uniformity and energy performance. The effect of the perforation pattern of the rear duct on the distribution of airflow between these and the front curtain is brought out. The critical component is air infiltration across the curtain, which is governed by internal air distribution and curtain characteristics. It is observed that a 70–30 distribution of flow between the curtain and the rear duct perforations yields a performance that satisfies the standards. Further, a judicious distribution of perforations on the rear duct at various levels and across is necessary. Correlations available in the literature are useful in making a qualitative assessment of the results. |
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Keywords: | Display case Supermarket Open display case Air curtain Experiment Air distribution R-507Mots clé s: Meuble de vente Supermarché Meuble ouvert Rideau d'air Expé rimentation Distribution air R-507 |
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