The effects of fractality on hydrogen permeability across meso-porous membrane

Z. Helwani; A. D. Wiheeb; I. K. Shamsudin; J. Kim; M. R. Othman

doi:10.1007/s00231-014-1445-7

The effects of fractality on hydrogen permeability across meso-porous membrane

Z. Helwani
, A. D. Wiheeb
, I. K. Shamsudin
, J. Kim
, M. R. Othman

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

10 Citations (Scopus)

Abstract

A fractal theory employing a box-counting method was used to describe hydrogen gas diffusion into membrane pores in the meso-porosity regime. The diffusion of the gas into the membrane pore network confirmed the existence of fractal structure in the system. Two fractal identities to represent irregularity and roughness of pore surface and tortuosity of the membrane were obtained and analyzed. Their influences on hydrogen permeability were also evaluated. The fractal permeability model that reflects different hydrogen diffusion mechanisms was calculated and compared with that of the state of the art Kozeny–Carman equation.

Original language	English
Pages (from-to)	751-758
Number of pages	8
Journal	Heat and Mass Transfer
Volume	51
Issue number	6
DOIs	https://doi.org/10.1007/s00231-014-1445-7
Publication status	Published - 1 Jun 2015

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© 2014, Springer-Verlag Berlin Heidelberg.

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abstract = "A fractal theory employing a box-counting method was used to describe hydrogen gas diffusion into membrane pores in the meso-porosity regime. The diffusion of the gas into the membrane pore network confirmed the existence of fractal structure in the system. Two fractal identities to represent irregularity and roughness of pore surface and tortuosity of the membrane were obtained and analyzed. Their influences on hydrogen permeability were also evaluated. The fractal permeability model that reflects different hydrogen diffusion mechanisms was calculated and compared with that of the state of the art Kozeny–Carman equation.",

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AU - Wiheeb, A. D.

AU - Shamsudin, I. K.

AU - Kim, J.

AU - Othman, M. R.

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N2 - A fractal theory employing a box-counting method was used to describe hydrogen gas diffusion into membrane pores in the meso-porosity regime. The diffusion of the gas into the membrane pore network confirmed the existence of fractal structure in the system. Two fractal identities to represent irregularity and roughness of pore surface and tortuosity of the membrane were obtained and analyzed. Their influences on hydrogen permeability were also evaluated. The fractal permeability model that reflects different hydrogen diffusion mechanisms was calculated and compared with that of the state of the art Kozeny–Carman equation.

AB - A fractal theory employing a box-counting method was used to describe hydrogen gas diffusion into membrane pores in the meso-porosity regime. The diffusion of the gas into the membrane pore network confirmed the existence of fractal structure in the system. Two fractal identities to represent irregularity and roughness of pore surface and tortuosity of the membrane were obtained and analyzed. Their influences on hydrogen permeability were also evaluated. The fractal permeability model that reflects different hydrogen diffusion mechanisms was calculated and compared with that of the state of the art Kozeny–Carman equation.

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IS - 6

ER -

The effects of fractality on hydrogen permeability across meso-porous membrane

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