Modeling of the Effects of Pleat Packing Density and Cartridge Geometry on the Performance of Pleated Membrane Filters
Modeling of the Effects of Pleat Packing Density and Cartridge Geometry on the Performance of Pleated Membrane Filters
复制标题
DOI：
10.3390/fluids6060209
复制
发表时间：
2021-06-01
期刊：
影响因子：
1.9
通讯作者：
Sanaei, Pejman
中科院分区：
文献类型：
--
作者：
Persaud, Dave;Smirnov, Mikhail;Sanaei, Pejman
在许多应用中，褶状膜过滤器被广泛用于从流体中去除不期望的杂质。过滤膜夹在多孔支撑层之间，然后打褶并包装成具有用于流出的中心中空管道的环形圆柱形滤筒。虽然这种布置提供了高的表面过滤面积与体积比，但过滤器性能不如等效的扁平过滤器有效。在本文中，我们使用渐近方法来简化整个滤芯的流量，系统地研究褶皱的数量或褶皱的堆积密度如何影响褶皱膜过滤器的性能。该模型用于确定褶皱的最佳数量，以实现特定的最佳过滤性能。我们的研究结果表明，只有“恰到好处”-既不太少，也不太多-褶皱数量提供了最佳性能的褶皱过滤器滤芯。
Pleated membrane filters are widely used to remove undesired impurities from a fluid in many applications. A filter membrane is sandwiched between porous support layers and then pleated and packed into an annular cylindrical cartridge with a central hollow duct for outflow. Although this arrangement offers a high surface filtration area to volume ratio, the filter performance is not as efficient as those of equivalent flat filters. In this paper, we use asymptotic methods to simplify the flow throughout the cartridge to systematically investigate how the number of pleats or pleat packing density affects the performance of the pleated membrane filters. The model is used to determine an optimal number of pleats in order to achieve a particular optimum filtration performance. Our findings show that only the "just right"-neither too few nor too many-number of pleats gives optimum performance in a pleated filter cartridge.