Dynamic model of heat and mass transfer in a closed ventilated and refrigerated display cabinet loaded with products.

This paper presents simulation results concerning the temperature distribution in a ventilated and refrigerated display cabinet loaded with products. Using the nodal method, a numerical model of the dynamic thermal behaviour of a ventilated display cabinet was developed. A CFD simulation study of the entire cabinet was made to determine the airflow distribution between the shelves as well as the heat transfer coefficient along the evaporator plate. The dynamic behaviour of the cabinet with a temperature control of the refrigerating system was simulated. Such numerical results are useful to discuss the dynamic thermal behaviour of the cabinet and the phenomenon of thermal stratification.