| Titre : |
Investigation of the fouling layer growth and distribution at the interface of pressure-driven membranes |
| Type de document : |
texte imprimé |
| Auteurs : |
Mohamed Bentrcia, Auteur ; R. Drew, Directeur de thèse |
| Editeur : |
Rensselaer Polytechnic Institute |
| Année de publication : |
1985 |
| Importance : |
156 f. |
| Présentation : |
ill. |
| Format : |
27 cm. |
| Note générale : |
Thèse de Doctorat : Mechanical Engineering : New York, Rensselaer Polytechnic Institute Troy : 1985
Bibliogr. f. 157 - 161 . - Annexe f. 162 - 250 |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Pressure-driven membranes
Fouling layer flow
Fluid flow solution
Numerical solution |
| Index. décimale : |
D005185 |
| Résumé : |
An investigation of the growth and the distribution of the fouling layer at the interface of pressure-driven membranes is presented.
Also, its effect on the flow variables is studied.
A model of the flow in the channel, the fouling layer and the membrane skin is developed.
Then, the equations governing the flow and the rate of change for the fouling layer thickness are non-dimensionalized.
Consequently, two parameters characterizing the effects of the inertia terms and the fouling layer are obtained.
The undisturbed solution (Rew = 0, S = 0) is first found, then the first-order perturbation problems for both Rew
It is found that for relatively large values of E (which correspond to the ultrafiltration regime with moderate values of ΔP across the porous media; the pressure, the suction velocity, and the fouling layer thickness decay exponentially along the channel and the present solution can not be approximated by similarity solutions.
Whereas for small values of E (which correspond to some range of the hyperfiltration regime) the pressure, suction velocity and the fouling layer thickness decrease linearly along the X-axis and the solution is in good agreement with the similarity solutions.
Also, it is noticed |
Investigation of the fouling layer growth and distribution at the interface of pressure-driven membranes [texte imprimé] / Mohamed Bentrcia, Auteur ; R. Drew, Directeur de thèse . - Rensselaer Polytechnic Institute, 1985 . - 156 f. : ill. ; 27 cm. Thèse de Doctorat : Mechanical Engineering : New York, Rensselaer Polytechnic Institute Troy : 1985
Bibliogr. f. 157 - 161 . - Annexe f. 162 - 250 Langues : Anglais ( eng)
| Mots-clés : |
Pressure-driven membranes
Fouling layer flow
Fluid flow solution
Numerical solution |
| Index. décimale : |
D005185 |
| Résumé : |
An investigation of the growth and the distribution of the fouling layer at the interface of pressure-driven membranes is presented.
Also, its effect on the flow variables is studied.
A model of the flow in the channel, the fouling layer and the membrane skin is developed.
Then, the equations governing the flow and the rate of change for the fouling layer thickness are non-dimensionalized.
Consequently, two parameters characterizing the effects of the inertia terms and the fouling layer are obtained.
The undisturbed solution (Rew = 0, S = 0) is first found, then the first-order perturbation problems for both Rew
It is found that for relatively large values of E (which correspond to the ultrafiltration regime with moderate values of ΔP across the porous media; the pressure, the suction velocity, and the fouling layer thickness decay exponentially along the channel and the present solution can not be approximated by similarity solutions.
Whereas for small values of E (which correspond to some range of the hyperfiltration regime) the pressure, suction velocity and the fouling layer thickness decrease linearly along the X-axis and the solution is in good agreement with the similarity solutions.
Also, it is noticed |
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