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Performance Variation of the Air Curtain for Various Discharge Angles in Feating Space  

Sung, Sun-Kyung (Department of Building equipment System Engineering, Kyungwon University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.22, no.2, 2010 , pp. 57-63 More about this Journal
Abstract
Air curtains are widely used for gates of shopping mall, warehouse, cold stores and refrigerated display cabinets. The purpose of the air curtain is to reduce the infiltration of outdoor air and heat loss from the air conditioning space to ambient air. The discharge angle of air curtain is very important as the sealing efficiency is affected by it. This paper presents a performance of single jet air curtain in heating space when the discharge angle of nozzle changes. A numerical simulation is used to study the influence of various parameters on the efficiency of the downward-blowing air curtain device which is installed inside of the wall above the door. The performance of the air curtain is evaluated by sealing efficiency which provides the assessment of the energy savings. A condition of discharge angle that has the highest sealing efficiency is proposed.
Keywords
Single jet air curtain; Discharge angle; Downward-blowing; Sealing efficiency;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Downing, C. C. and Meffert, W. A., 1993, Effectiveness of cold-storage door infiltration protective devices, Trans. Am. Soc. Htg. Refrig.Air Cond. Eng., Vol. 99, p. 356.
2 Costa, J. J., Oliveira, L. A. and Silva, M. C. G., 2006, Energy saving by aerodynamic sealing with a downward-blowing plane air curtain- A numerical approach, Energy and Buildings, Vol. 38, pp. 1182-1193.   DOI   ScienceOn
3 Hayes, F. C. and Stoecker, W. F., 1969, Design data for air curtains, ASHRAE Transactons, Vol. 75, pp. 168-179.
4 Luis, P. C., Neto, M. C., Gameiro, Silva and Jose J. Costa, 2006, On the use of infrared thermography in studies with air curtain devices, Energy and Buildings, Vol. 38, pp. 1194- 1199.   DOI   ScienceOn
5 Sung, S. K., 2009, Performance of downwardblowing air curtain in heating space considering external wind condition.
6 Foster, A. M., Swain, M. J., Barret, R. and D'Agaro, P., 2007, Three-dimensional effects of an air curtain used to restrict cold room infiltration, Applied Mathematical Modelling, Vol. 31, pp. 1109-1123.   DOI   ScienceOn
7 Foster, A. M., Swain, M. J., Barrett, R., D'Agaro, P., James, S. J., 2006, Effectiveness and optimun jet velocity for a plane jet air curtain used to restrict cold room infiltration, International journal of refrigeration, Vol. 29, pp. 692-699.   DOI   ScienceOn