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Study on the fluid distribution and resistance of the hollow fiber membrane module housing

Authors： Zhuang Liwei1,2，XU Zhenliang1,*，Wei Yongming1，Yang Hu1，Ma Xiaohua1，Tang Chuyang1，Li Jinrong1，Song Zhen1，Li Zhanjiang1，Zheng Anli1，Zheng Heli1

Units： 1．Xilong Scientific Co., Ltd., Guangdong, Shantou 515000; 2．State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Center, East China University of Science and Technology, Shanghai 200237

KeyWords： Hollow fiber membrane module; CFD; fluid distribution; resistance

ClassificationCode：TQO51.8；TQO21.1

year,volume(issue):pagination： 2018,38(3):25-33

Abstract：

Computational fluid dynamics (CFD) simulation and supplementary experiment have been conducted to investigate the fluid distribution inside the hollow fiber membrane module housing and the fluid resistance caused by individual part of the housing within the operating volumetric flow rate range (4.62～20 m3·h-1). The results showed that the fluid resistance caused by every individual part of the housing increased as the volumetric flow rate increased with an accelerated increase rate. As for the fluid resistance caused by the upper resin, it increased almost linearly with the volumetric flow rate. As the volumetric flow rate increased, the proportion of the energy consumption of upper resin decreased whereas the ones of the other parts of housing increased. The ratio of the inertial resistance to the overall resistance is high for the housing. Therefore, the effective energy consumption as the driving force of the filtration will be low if the hollow fiber membrane module is operated with a high volumetric flow rate. The lower manifold caused non-uniform initial fluid distribution, which will get increasingly more uniform as the fluid flowed upward. In normal operating volumetric flow rate range, the fluid distribution within the housing depends on the structure of the housing and is independent of the volumetric flow rate.

Funds：

广东省“扬帆计划”引进创新创业团队项目资助（2016YT03C010），汕头市引进科技创新创业团队计划资助，国家自然科学基金（21706066）

AuthorIntro：

庄黎伟（1988-），男，江苏丹阳市人，博士，主要从事膜设备设计与膜过程强化的CFD研究。E-mail: zlwdml3344@hotmail.com *通讯作者，E-mail: chemxuzl@ecust.edu.cn

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