Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
Numerical Analysis of the Minimization of Frost Formation in Flat Plate With Different Coatings
Submission Author:
Gustavo Silva Rodrigues , MG , Brazil
Co-Authors:
Gustavo Silva Rodrigues, Raquel da Cunha Ribeiro da Silva
Presenter: Gustavo Silva Rodrigues
doi://10.26678/ABCM.ENCIT2018.CIT18-0136
Abstract
The presence of frost in the most diverse refrigeration systems is a highly relevant problem for commercial refrigeration. The thin layer of ice that forms on a cold surface grows over time, becoming increasingly dense, causing a reduction in system performance due to the increase in the thermal resistance of the layer. The process of formation of ice crystals is very complex to be evaluated due to the different environmental parameters involved on this phenomenon, where the processes of heat transfer and mass occurs simultaneously. Through numerical simulations, based on a mathematical model of this phenomenon, it was possible to determine the thickness and surface temperature of the porous layer of ice formed on flat plates made of brass, copper and zinc, and plates coated with wax and silica. Experimental data available in the literature was used in the validation of the numerical model adopted in this paper. This research is a numerical study of the phenomenon of frost formation and aims to analyze the influence of the coatings on the reduction of frost layer formed on a flat plate, understanding the formation process and analyzing environmental parameters that influence this phenomenon.
Keywords
Numerical analysis, Flat Plate, Frost Formation, Frost Reduction, Frost Deposition
