Transport Phenomena in Spacer-filled Channel - An Inside Understanding by Electrochemical Measurement andCFD Simulation.
碩士 === 中原大學 === 化學工程研究所 === 95 === Understanding the transport phenomena in a spacer-filled channel was conducted using computational fluid dynamic (CFD) and electrochemical techniques. The spacer serves as vortex promoters for reducing polarization phenomena near the membrane surface. No any effort...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2007
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| Online Access: | http://ndltd.ncl.edu.tw/handle/60468603405530654001 |
| Summary: | 碩士 === 中原大學 === 化學工程研究所 === 95 === Understanding the transport phenomena in a spacer-filled channel was conducted using computational fluid dynamic (CFD) and electrochemical techniques. The spacer serves as vortex promoters for reducing polarization phenomena near the membrane surface. No any effort has been placed on the location of unit cell in the spacer-filled channel on hydrodynamic and concentration boundary layers near the membrane surface.
Purposes of this work were focused on the effects of different channels and the sums of entrance on the mass transfer rate, shear stress and flow filed by CFD and experimental equipment. Results showed that the maximum wall shear stress was occurred beside the 4/5 position of the center line of the unit cell. The mass transfer rate of the inner wall was higher than that of outer wall in the curved channel.
Therefore, a platform was constructed based on the CFD approach and technique of electrochemical measurement for microcosmic study of membrane module design.
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