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A Parametric Analysis of Flow Maldistribution and Consequences on the Thermal Performance of Plate Heat Exchangers

机译:板式换热器流量分布不均及其后果的参数分析

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摘要

In the present paper, the main parameters affecting the flow maldistribution have been identified and a detailed analysis has been carried out concerning how the parameters affect the flow maldistribution. Using the thermal model of Rao et al. (2002), the effect of flow maldistribution on the thermal performance of the plate heat exchanger was simulated. The present analysis shows that flow maldistribution needs to be taken into account when the number of channels per fluid is greater than 20 and more particularly for low corrugation angles (α = 30°). Flow maldistribution can be reduced by changing the corrugation angle and then the thermal performance of the large plate package of plate heat exchangers can be improved.
机译:在本文中,已经确定了影响流量分配不均的主要参数,并对参数如何影响流量分配不均进行了详细分析。使用Rao等人的热模型。 (2002年),模拟了流量分配不均对板式换热器热性能的影响。本分析表明,当每种流体的通道数大于20时,尤其是在低波纹角(α= 30°)时,需要考虑流量分配不均的问题。通过改变波纹角可以减少流量分配不均,然后可以改善板式换热器大板包装的热性能。

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