PERFORMANCE OF NANOPOROUS FILTRATION MEMBRANE WITH CONICAL PORES: FOR A LIQUID-PARTICLE SEPARATION | Zendy

Yongbin Zhang | Zendy

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PERFORMANCE OF NANOPOROUS FILTRATION MEMBRANE WITH CONICAL PORES: FOR A LIQUID-PARTICLE SEPARATION

Author(s) -

Yongbin Zhang

Publication year - 2019

Publication title -

frontiers in heat and mass transfer

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 18

ISSN - 2151-8629

DOI - 10.5098/hmt.12.14

Subject(s) - thermal fluids , filtration (mathematics) , frontier , nanoporous , materials science , membrane , thermal , chemical engineering , process engineering , nanotechnology , engineering , chemistry , political science , thermodynamics , physics , thermal resistance , law , biochemistry , statistics , mathematics

An analysis was developed for the flow resistance of the nanoporous filtration membrane with conical pores for a liquid-particle separation, based on the nanoscale flow model. The calculation results show that there exists the optimum cone angle of the conical pore which gives the lowest flow resistance and thus the highest flux of the membrane; This optimum cone angle of the conical pore depends on the radius of the small opening of the conical pore, the passing liquid-pore wall interaction and the membrane thickness. The equations were regressed out for calculating this optimum cone angle respectively for weak, medium and strong liquid-pore wall interactions. For the optimum cone angle of the conical pore, the dimensionless minimum flow resistance of the membrane was calculated and it is only dependent on the radius of the small opening of the conical pore and the passing liquid-pore wall interaction.

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