膜科学与技术

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Multi-field simulation of the flow channel of spiral wound module by finite volume method

Authors： GUAN Hui, LIN Peifeng, YU Sanchuan

Units： School of Science, Zhejiang Sci-Tech University, Hangzhou, 310018, China

KeyWords： Spiral wound membrane module; Finite volume method (FVM); Multi-field simulation; Configuration optimization

ClassificationCode：TQ028.3

year,volume(issue):pagination： 2022,42(3):129-134

Abstract：

This study focused on the multi-field simulation of the flow channel of spiral wound membrane module by finite volume method (FVM). The (FVM) The fluid velocity, pressure and wall shear stress distributions within the flow channel of spiral wound membrane module with the feed spacer of different filament included angles (60o, 90o and 120o) were simulated by FVM method. The results showed that, with the increase of the included angle between filaments of feed spacer, the velocity of the fluid within the channel increased and the concentration polarization near membrane surface became weakened. With the included angle ascended from 60o to 90o, the wall shear stress on the membrane surface was enhanced by 12% and the pressure drop along the flow channel increased by 10%. When the included angle ascended from 90o to 120o, the wall shear stress on the membrane surface was enhanced by 14% and the pressure drop along the flow channel increased by 15%. Therefore, as far as the loss of energy is allowed, the increase of included angle between the filaments of feed spacers was beneficial to alleviate the concentration polarization near the membrane surface.

Funds：

国家自然科学基金项目（51676173）、浙江省重点研发计划项目（2020C03081）

AuthorIntro：

管徽（1999.09--），男，安徽六安人，硕士生，从事膜分离技术研究

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