Pressure drops along the bores of hollow fibre membranes—their measurement, prediction and effect on fibre bundle performance

✍ Scribed by W.T. Hanbury; A. Yuceer; M. Tzimopoulos; C. Byabagambi

• Publisher: Elsevier Science
• Year: 1981
• Tongue: English
• Weight: 806 KB
• Volume: 38
• Category: Article
• ISSN: 0011-9164
• DOI: 10.1016/s0011-9164(00)86076-2

✦ Synopsis

Measurements

of the pressure drops along the bores of hollow fibres in 2 B9 fibre bundle have been made under operating conditions.

A theoretical model of the fibre behaviour is presented and analysed. An analyti_cal solution is obtained for the case of a fibre in a uniform crossflow of brine of uniform concentration and uniform pressure. A numerical procedure, making use of this analytical solution, is developed to solve the more general orablem of detailed bundle behaviour. This orocedure takes into account the variation of brine concentration along fihre lengths and the fact that in some cases the product concentration can be significant. Sets of experimental data, including the measurements of bore pressures, are presented and analysed usinK a computer program based on the numerical procedure presented. Evidence of compression of the fibre bore diameter due to the external brine pressure is found, particularly at higher temperatures and pressures. 'bi -p,, = !Pbi -Pbo / ln(ro/riJ (8)