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http://dx.doi.org/10.6110/KJACR.2013.25.11.578

Performance Variation of the Refrigerated Display Case with Air Curtain in Accordance with Back Pressure Condition  

Sung, Sun-Kyung (Department of Building equipment System Engineering, Gachon University)
Ahn, Kyo-Chul (Department of Building equipment System Engineering, Gachon University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.25, no.11, 2013 , pp. 578-584 More about this Journal
Abstract
Vertical open display cases are widely used in shopping malls, supermarkets, or retail stores to sell frozen and refrigerated products. Open display cases use air curtains to maintain a reasonable temperature within the storage space, prevent insects from breaking in, and reduce energy usage. In this research, computational fluid dynamics was used to find the optimal condition for reducing energy by considering various conditions such as discharge speed or temperature of air curtains. Results of the study showed that the amount of energy consumed in the display cabinet is influenced by the discharge speed and temperature of the slots installed on the upper area and the amount of air supplied to the storage area inside the shelf. This shows that the amount of discharged air supplied from the storage area influences the formation of air curtain and also the amount of energy consumption. As a result of this study, we learned that the amount of energy used can be reduced by increasing the amount of discharged air within the storage area and enhancing back pressure.
Keywords
Open display case; Air curtain; Slot;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Kwon, J. T. and Kwon, Y. C, 2003, Development trend of showcase equipment, Magazine of the SAREK, Vol. 32, No. 7, pp. 34-36.
2 Gray, I., Luscombe, P., Sarathy, C. S. P., Sheahen, P., and Srinivasan, K., 2008, Improvement of air distribution in refrigerated vertical open front remote supermarket display cases, International Journal of Refrigeration, Vol. 31, pp. 902-910.   DOI   ScienceOn
3 Pedro Dinis Gaspar, L. C. Carrilho Goncalves and R. A. Pitarma, 2011, Experimental analysis of the entrainment factor of air curtain in vertical open display cabinets for different ambient air conditions, Applied Thermal Engineering, Vol. 31, pp. 961-969.   DOI   ScienceOn
4 Shin, Y.-H., Oh, W.-K., Park, K.-H., Kim, Y. G., and Shin, Y. G., 2005, Measurement and analysis of showcase field data, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 17, pp. 436-443.   과학기술학회마을
5 Sung, S. K., 2011, Performance of refrigerated display cabinets in accordance with the supply air jet condition, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 23, No. 1, pp. 80-86.   과학기술학회마을   DOI   ScienceOn
6 Homayun, K. N., Henderson, B. S., Faramarzi, R., Pormovahed, A., and Taugwalder, F., 2005, Jet entrainment rate in air curtain of open refrigerated display cases, International Journal of Refrigeration, Vol. 28, pp. 267-275.   DOI   ScienceOn
7 Yu, K.-Z., Ding, G.-L., and Chen, T.-J., 2007, Simulation of air curtains for vertical display cases with a two-fluid model, Applied Thermal Engineering, Vol. 27, pp. 2583-2591.   DOI   ScienceOn
8 Foster, A. M., Swain, M. J., Barrett, R., DʼAgaro, P., and James, S. J., 2006, Effectiveness and optimum jet velocity for a plane jet air curtain used to restrict cold room infiltion, International Journal of Refrigeration, Vol. 29, pp. 692-699.   DOI   ScienceOn
9 Hayes, F. C. and Stoecker, W. F., 1969, Design data for air curtains, ASHRAE Transactons, Vol. 75, pp. 168-179.
10 Brandon, S. F. and Loth, E., 2006, Entrainment of refrigerated air curtains down a wall, Experimental and fluid science, Vol. 30, pp. 175-184.   DOI   ScienceOn
11 Foster, A. M., Madge, M., and Evans, J. A., 2005, The use of CFD to improve the performance of a chilled multi-deck retail display cabinet, International Journal of Refrigeration, Vol. 28, pp. 698-705.   DOI   ScienceOn