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在第九届国际制冷会议上,对用热法或冷法以确定冷藏车的K值,引起严重的分岐。因此,我们分析了一种非稳定状态法,用以弥补某些分岐意见。除了限于自己提出的与现用方法的一些比较外,并没有详细考察这一方法的完善性。原理隔热车辆是一个带有热容量CG(大卡/℃)的均质物体。在这系统内,产生一个不变的热量Q(大卡/小时),系统之外的温度保持不变,
In the Ninth International Conference on Refrigeration, the use of hot or cold method to determine the value of refrigerated trucks K, causing serious disagreement. Therefore, we analyze an unsteady state method to make up for some disagreements. Except limited to some comparison with the current method which he put forward, it does not examine in detail the perfection of this method. Principle The insulated vehicle is a homogeneous object with a heat capacity of CG (kcal / ° C). In this system, a constant heat Q (kcal / h) is generated, the temperature outside the system remains unchanged,