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Titolo:
FRICTION FACTORS AND ROUGHNESS MEASUREMENTS OF TUBULAR MINERAL MEMBRANES
Autore:
RENE F; LEULIET JC; DELPLACE F;
Indirizzi:
INRA,FOOD PROC ENGN LAB,369 RUE J GUESDE F-59650 VILLENEUVE DASCQ FRANCE
Titolo Testata:
Experiments in fluids
fascicolo: 3, volume: 15, anno: 1993,
pagine: 175 - 182
SICI:
0723-4864(1993)15:3<175:FFARMO>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONCENTRATION POLARIZATION LAYER; TURBULENT CROSS FLOW; MASS-TRANSFER; FLUID-MECHANICS; ULTRAFILTRATION; FILTRATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
18
Recensione:
Indirizzi per estratti:
Citazione:
F. Rene et al., "FRICTION FACTORS AND ROUGHNESS MEASUREMENTS OF TUBULAR MINERAL MEMBRANES", Experiments in fluids, 15(3), 1993, pp. 175-182

Abstract

No direct measurement of the relative roughness is available for mineral porous media because of the low mechanical resistance of such materials. In this study a method for the experimental determination of the internal diameter and the equivalent roughness is proposed for different commercial membranes used in ultrafiltration and microfiltration processes. The use of classical friction factor correlations is also discussed. The main results are the estimation of the hydraulic diameter of tubular membranes and the use of a quadratic form in order to predict friction factors and the equivalent roughness with an accuracy better than 15%.

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Documento generato il 24/09/20 alle ore 04:48:09