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一、引言通常,食品的冷却,是食品冷藏库的生产环节之一,是食品冷冻工艺的一个组成部分。食品的冷却,就是将食品的品温降低到接近它的冰点,但并不让其冻结。例如,猪肉在冻结前一般先要进行冷却。对食品冷却过程的最重要的研究课题,莫过于过程进行的速率或时间。由于在设计冷却设备、冷却室以及组织安排冷藏库的生产流程时,常常需要预先知道被冷却食品从室温冷却到接近其冰点或高于冰点的任一温度所需要的时间。就是说,如何在理
I. INTRODUCTION Generally, the cooling of food is one of the production steps of the food refrigerator and is an integral part of the food freezing process. The cooling of the food, is to reduce the temperature of the food near its freezing point, but does not let it freeze. For example, pork is generally cooled before freezing. The most important research topic for the food cooling process is the rate or time of the process. As designing cooling facilities, cooling rooms, and organizing cold storage production processes, it is often necessary to know in advance the time required for cooled foods to cool from room temperature to any temperature near or above freezing. That is to say, how to manage