数值模拟在食品预冷间设计中的应用

摘要

食品预冷是食品加工中常见的环节,对食品预冷间的设计有许多方面值得研究和探讨.随着数值模拟技术在制冷方面应用的不断成熟,可以借助计算机来对食品预冷闽进行数值分析及系统优化.该文对食品预冷间的温度场、速度场进行了数值计算,并数值模拟了不同风管布置形式对流场的影响,从而对食品预冷的效果进行分析及优化设计.%Pre -cooling is a common step in food processing. Many aspects are needed to be researched and discussed in the design of food pre — cooling room. Along with the growing up of the application of numerical simulation technique in the field of refrigeration , the numeric methods can be used to analyze and optimize the food pre - cooling room via computer. In this paper, the air temperature and velocity distribution inside the food pre - cooling room were numerically calculated, and the influences of the different arrangement of the wind - pipe on the temperature and velocity distribution were simulated with the numerical methods. Based on the simulation results, some analyzing and optimizing suggestions on the design of the food pre - cooling room were proposed.