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The CFD-Based Optimal Design for the Air-to-Air Fixed Plate Membrane Heat Exchanger

机译:基于CFD的空气固定板膜换热器的最优设计

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The objective of this study is to investigate the optimal design to improve the performance of the air to air fixed plate membrane heat exchanger, a popular ERV (Energy Recovery Ventilator) used in HVAC systems. The CFD software, ANSYS FLUENT, was used to predict the performance for cold and hot air streams with the cross-flow type proceeding heat and moisture exchanges through the middle porous membrane between them. The Taguchi method was adopted to search the best design parameters. Three factors, including the ratio of volume flow rates, temperature difference, and absolute humidity for both cold and hot airstreams, were employed to find the optimal design combination. With three levels in each factor, nine CFD simulating cases were conducted in this study. According to the numerical results, it is known that the total effectiveness based on the optimal factor-level combination was increased by 28.25% when compared to the original design.
机译:本研究的目的是研究最佳设计,以改善空气固定板膜热交换器的空气性能,是HVAC系统中使用的流行ERV(能量回收呼吸机)。 CFD软件ANSYS流畅,用于预测通过中间多孔膜在它们之间进行热量和水分交换的横流型冷热空气流的性能。 采用TAGUCHI方法搜索最佳设计参数。 采用了三种因素,包括寒冷和热气流的体积流量,温度差和绝对湿度的比例,以找到最佳的设计组合。 在每种因素中有三个级别,在本研究中进行了九种CFD模拟病例。 根据数值结果,众所周知,与原始设计相比,基于最佳因子级组合的总效果增加了28.25%。

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