用动态加热法测定小型空调器的制冷量

Dynamic Heating Method for the Measurement of the Refrigerating Capacity of a Small-type Air Conditioner

本文提出一种动态加热法来精确测定空调器的制冷量,且在测定制冷量的同时可获得可靠的循环风量。文中介绍了方法的工作原理,测试步骤和测试实例,并进行了误差分析。这种方法在理论上有严格的计算公式,相应的试验室施工简单,试验方法与控制技术比其它方法更方便可靠,被测制冷量的最大误差可在6％以内,是一种有应用前途的新方法。

A new method, named 'Dynamic Heating Method', is suggested here in this paper to measure strictly the refrigerating capacity of an air conditioner and, at the same time, to obtain actual circulating air flow rate of the unit. The working principle, measuring procedures and a practical example as well as the error analysis of the method have been introduced in the paper. The method has rigorous formulas for calculation, the construction of the corresponding laboratory may be simpler and economical, and its measuring process and controlling technique are more convenient and reliable in comparision with others. With this method, the limiting error of the measured refrigerating capacity can be limited within 6%. Thus, it will be a prosperous new method in the future.