This paper discussed the design criteria of material selection, the area of single unit, flow path, flow rate of a plate heat exchanger (PHE)in a geothermal heating system.

重点分析了板式换热器在地热供暖系统中材料、单片面积、流程、流道、流体流速等选取的原则；在综合考虑技术、经济、环境效益及节能的基础上，论述了对板式换热器优化设计的方法。

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The key to reliable handling of materials is to design the handling system equipment based on the measured flow properties of the material to be handled.

按照材料的流动特征设计一个材料的输运系统会对系统的许多部件产生影响。

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