等雷诺数法在板式换热器传热试验中的应用

The Application of Equal Reynolds Number Method in the Heat Transfer Test of Plate Heat Exchangers

在换热器的传热性能试验中，对流换热系数的测定是重要的一个组成部分，对流换热系数的测定方法有很多种，但都有各自的应用范围和条件。对于板式换热器而言，用等雷诺数法来获得其对流换热系数是比较合适的一种方法，文中介绍了等雷诺数法的原理及其在板式换热器中的应用。通过实例，介绍了具体的试验及计算方法。

The determination of convection heat exchange factors constitutes a major element in the heat transfer performance test of heat exchangers.A multitude of methods can be used to determine the convection heat transfer factors with their respective application scope and conditions.So far as plate heat exchangers are concerned,equal Reynolds number method can be considered as a fairly appropriate one.The present paper describes the working principle of the equal Reynolds number method and its use for the plate heat exchangers.Specific examples are given to illustrate their test and computation methods.