Open Access
ARTICLE
INFLUENCE OF PORE WALL SURFACE PROPERTY ON FLUX OF CYLINDRICAL-SHAPED NANOPOROUS FILTERING MEMBRANE
Yongbin Zhang*
College of Mechanical Engineering, Changzhou University, Changzhou, 213164, Jiangsu Province, China
* Corresponding Author: Email:
Frontiers in Heat and Mass Transfer 2017, 9, 1-6. https://doi.org/10.5098/hmt.9.26
Abstract
The influence of pore wall surface property on the flux of a novel cylindrical-shaped nanoporous filtering membrane is analytically studied by using
the flow factor approach model for a nanoscale flow. Across the thickness of the membrane are manufactured two concentric cylindrical pores with
different radii. The smaller nanoscale pore is for filtration, while the other larger pore is for reducing the flow resistance. It was found that when the
larger pore wall surface is hydrophobic, the interaction between the filtered liquid and the smaller pore wall surface has a very significant effect on
the value of the optimum ratio of the radii of these two pores which yields the smallest flow resistance and thus the highest flux of the membrane; In
the optimum working condition, the smaller pore wall surface property greatly influences the flow resistance of the membrane. It was found to be
possible to manufacture the membrane with specific pore wall surface property used for filtering one liquid out of other liquids; In this membrane,
the pore wall surface should be hydrophobic to the filtered liquid, while it should be highly hydrophilic to the other liquids.
Keywords
Cite This Article
Zhang, Y. (2017). INFLUENCE OF PORE WALL SURFACE PROPERTY ON FLUX OF CYLINDRICAL-SHAPED NANOPOROUS FILTERING MEMBRANE.
Frontiers in Heat and Mass Transfer, 9(1), 1–6. https://doi.org/10.5098/hmt.9.26