Numerical analysis of pressure field in rotating disk-membrane module

Xin Li; Xinping Liu; Sande Ou; Yongli Wu; Jiong Peng

Numerical analysis of pressure field in rotating disk-membrane module

Xin Li^*, Xinping Liu, Sande Ou, Yongli Wu, Jiong Peng

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The local trans-membrane pressure and back pressure were simulated using computational fluid dynamics software FLUENT, taking two-dimensional unsteady N-S equation as a control equation, selecting of RNG k-ε model. The influent factors on the local trans-membrane pressure were investigated, such as rotation speed, disk radii, rotation disk length, support thicknesses and membrane permeability. The numerical results showed that the local trans-membrane pressure increased with rotation speed increased, and the back pressure in the disk tip reduced as the disk radius and membrane permeability were reduced or support thickness was increased. When the disk radius was 6.7 cm, support thickness was 0.45 cm, and membrane permeability was 2.9 × 10^-12 cm², the back pressure disappeared. The effects of other parameters on the back pressure were not significant.

Original language	English
Pages (from-to)	13-17
Number of pages	5
Journal	Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology
Volume	25
Issue number	1
Publication status	Published - Feb 2009

Keywords

Back pressure
Local trans-membrane pressure
Numerical simulation
Rotating membrane module

Cite this

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title = "Numerical analysis of pressure field in rotating disk-membrane module",

abstract = "The local trans-membrane pressure and back pressure were simulated using computational fluid dynamics software FLUENT, taking two-dimensional unsteady N-S equation as a control equation, selecting of RNG k-ε model. The influent factors on the local trans-membrane pressure were investigated, such as rotation speed, disk radii, rotation disk length, support thicknesses and membrane permeability. The numerical results showed that the local trans-membrane pressure increased with rotation speed increased, and the back pressure in the disk tip reduced as the disk radius and membrane permeability were reduced or support thickness was increased. When the disk radius was 6.7 cm, support thickness was 0.45 cm, and membrane permeability was 2.9 × 10-12 cm2, the back pressure disappeared. The effects of other parameters on the back pressure were not significant.",

keywords = "Back pressure, Local trans-membrane pressure, Numerical simulation, Rotating membrane module",

author = "Xin Li and Xinping Liu and Sande Ou and Yongli Wu and Jiong Peng",

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language = "English",

volume = "25",

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journal = "Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology",

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T1 - Numerical analysis of pressure field in rotating disk-membrane module

AU - Li, Xin

AU - Liu, Xinping

AU - Ou, Sande

AU - Wu, Yongli

AU - Peng, Jiong

PY - 2009/2

Y1 - 2009/2

N2 - The local trans-membrane pressure and back pressure were simulated using computational fluid dynamics software FLUENT, taking two-dimensional unsteady N-S equation as a control equation, selecting of RNG k-ε model. The influent factors on the local trans-membrane pressure were investigated, such as rotation speed, disk radii, rotation disk length, support thicknesses and membrane permeability. The numerical results showed that the local trans-membrane pressure increased with rotation speed increased, and the back pressure in the disk tip reduced as the disk radius and membrane permeability were reduced or support thickness was increased. When the disk radius was 6.7 cm, support thickness was 0.45 cm, and membrane permeability was 2.9 × 10-12 cm2, the back pressure disappeared. The effects of other parameters on the back pressure were not significant.

AB - The local trans-membrane pressure and back pressure were simulated using computational fluid dynamics software FLUENT, taking two-dimensional unsteady N-S equation as a control equation, selecting of RNG k-ε model. The influent factors on the local trans-membrane pressure were investigated, such as rotation speed, disk radii, rotation disk length, support thicknesses and membrane permeability. The numerical results showed that the local trans-membrane pressure increased with rotation speed increased, and the back pressure in the disk tip reduced as the disk radius and membrane permeability were reduced or support thickness was increased. When the disk radius was 6.7 cm, support thickness was 0.45 cm, and membrane permeability was 2.9 × 10-12 cm2, the back pressure disappeared. The effects of other parameters on the back pressure were not significant.

KW - Back pressure

KW - Local trans-membrane pressure

KW - Numerical simulation

KW - Rotating membrane module

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M3 - Article

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SN - 1001-7631

VL - 25

SP - 13

EP - 17

JO - Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology

JF - Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology

IS - 1

ER -

Numerical analysis of pressure field in rotating disk-membrane module

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