The influence of the pressure drop in Plate Heat Exchangers (PHE) in the boiling temperature of LiBr H₂O and NH₃ H₂O solutions is studied. For the NH₃H₂O solution, the pressure drop-temperature saturation relationship estates that high pressure drops can be allowed in the solution with negligible changes in the saturation temperature, and in the PHE performance. Besides, in the case of the LiBr H₂O solution, as the working pressure is usually very low, the analysis of the pressure drop must be taken as a main limiting parameter for the use of Plate Heat Exchangers as vapour generators. In this case, the pressure drop may considerably change the boiling temperature of the solution entering the heat exchanger and therefore a higher heating fluid temperature may be required. A guideline to design these systems is proposed
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机译：研究了板式换热器（PHE）的压降对LiBr H 2 O和NH 3 H 2 O溶液沸腾温度的影响。对于NH 3 H 2 O溶液，压降-温度饱和关系关系式认为，在饱和温度和PHE性能变化可忽略不计的情况下，溶液中可允许高压降。此外，在LiBr H 2 O溶液的情况下，由于工作压力通常非常低，因此必须将压降的分析作为使用板式换热器作为蒸汽发生器的主要限制参数。在这种情况下，压降会大大改变进入热交换器的溶液的沸腾温度，因此可能需要更高的加热流体温度。提出了设计这些系统的指南
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