Parametric Investigation of the Air Curtain for Open Refrigerated Display Cabinets
V. K. Titariya1, A. C. Tiwari2
1Vipin Kumar Titariya, Department of Mechanical Engineering, University Institute of Technology, RGPV, Bhopal, India.
2Dr. Aseem C. Tiwari, Head of the Department of Mechanical Engineering, University Institute of Technology, RGPV, Bhopal, India.
Manuscript received on July 01, 2012. | Revised Manuscript received on July 04, 2012. | Manuscript published on July 05, 2012. | PP: 121-126 | Volume-2, Issue-3, July 2012. | Retrieval Number: C0714052312/2012©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Air curtains are widely used in open refrigerated display cabinets (ORDC) as well as doorways of Conditioned Space and retail premises. The main purpose of the air curtain is to control the heat and moisture transfer between the conditioned space and the surrounding ambient also to reduce the air exchange between the two environments. This article presents comprehensive results which can be used to optimise and predict the performance of air curtains in cabinets. The parameter investigation in this article has investigated how the density, velocity and temperature of the air inside and outside the curtain vary as a function of height for various ambient climatic conditions. These results are obtained from the models, developed to enable quick calculations and parametric analyses for the designing and sizing purposes of refrigeration equipments.
Keywords: Air curtain; extract grille; open refrigerated display cabinet; transition zone.