Detailed CFD Modelling of Open Refrigerated Display Cabinets. (22nd April 2012)

• Record Type: Journal Article
• Authors: Gaspar Gaspar, Pedro Dinis Pedro Dinis; Gonçalves Gonçalves, L. C. Carrilho L. C. Carrilho; Pitarma Pitarma, R. A. R. A.
• Other Names: Yeoh Yeoh Guan Heng Guan Heng Academic Editor.
• Is Part Of: Modelling and simulation in engineering. Volume 2012(2012)
• Publication Date: 2012-04-22
• Subjects: Engineering -- Simulation methods -- Periodicals; Engineering -- Mathematical models -- Periodicals; 620.004
• DOI: 10.1155/2012/973601
• Languages: English
• ISSNs: 1687-5591

Abstract

Abstract : A comprehensive and detailed computational fluid dynamics (CFDs) modelling of air flow and heat transfer in an open refrigerated display cabinet (ORDC) is performed in this study. The physical-mathematical model considers the flow through the internal ducts, across fans and evaporator, and includes the thermal response of food products. The air humidity effect and thermal radiation heat transfer between surfaces are taken into account. Experimental tests were performed to characterize the phenomena near physical extremities and to validate the numerical predictions of air temperature, relative humidity, and velocity. Numerical and experimental results comparison reveals the predictive capabilities of the computational model for the optimized conception and development of this type of equipments. Numerical predictions are used to propose geometrical and functional parametric studies that improve thermal performance of the ORDC and consequently food safety.