GB/T 27698.4-2011 in English

《GB/T 27698.4-2011热交换器及传热元件性能测试方法 第4部分：螺旋板式热交换器》由TC262（全国锅炉压力容器标准化技术委员会）归口，TC262SC5（全国锅炉压力容器标准化技术委员会热交换器分会）执行，主管部门为国家标准委。

Scope

This part of GB/T27698 specifies the heat transfer and fluid resistance performance test methods for the test conditions of spiral plate heat exchangers without liquid-liquid phase change, vapor-liquid condensation with phase change, and vapor-liquid evaporation with phase change. The test fluids applicable to this section are liquid-liquid and vapor-liquid. This section only considers the thermal resistance of the material of the heat transfer plate, and does not consider the thermal resistance of the dirt on both sides of the heat transfer plate.