Visualization of concentration fields in hemodialyzers by computed tomography

被引：51

作者：

Frank, A

Lipscomb, GG

Dennis, M

机构：

[1] Univ Toledo, Toledo, OH 43606 USA

[2] Med Coll Ohio, Toledo, OH 43614 USA

来源：

JOURNAL OF MEMBRANE SCIENCE | 2000年 / 175卷 / 02期

基金：

美国国家科学基金会;

关键词：

artificial kidney; dialysis; fiber membranes; modules;

D O I：

10.1016/S0376-7388(00)00421-X

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We present experimental measurements of concentration fields within a hemodialyzer usings X-ray computed tomography (CT). The measured concentrations represent a volume average value for the shell and lumen fluids. Although average values for a cross-section decrease uniformly from lumen inlet to outlet large variations in concentration occur within a cross-section. We attribute these concentration variations to variations in shell flow; regions of lower shell flow have higher concentrations. The regions of lower shell flow do not always correspond to regions of higher fiber packing. Distribution of fluid within the fiber bundle also is important. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：239 / 251

页数：13

共 23 条

[1] An investigation of concentration polarization phenomena in membrane filtration of colloidal silica suspensions by NMR micro-imaging [J].