指出了目前表冷器试验方法中因含有析湿因数项而存在的缺陷 ,提出了以等价干工况为基础 ,只做湿工况变风量、干工况变风量和变水量试验的新方法。认为该方法遵循了焓差是湿工况下换热推动力的规律 ,试验工作量减少一半以上 ,对试验装置的要求降低 ,由试验数据整理出的公式用于表冷器热力计算完全可以满足空调常用范围内的要求 It points out that there are some defects existing in the test method of surface cooler because of the moisture desorption factor. Based on the equivalent dry working conditions, this paper proposes a new test of variable air volume, dry air volume and variable air volume in wet conditions method. It is considered that this method follows the law that the enthalpy difference is the driving force for heat transfer under wet conditions, the work load on the test is reduced by more than half, and the requirements on the test equipment are reduced. The formulas calculated from the test data are completely satisfied Air conditioning commonly used within the requirements