Flow distribution in the fiber lumen side of a hollow-fiber module

Authors

  • Joong Kon Park,

    1. Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, Seoul, Korea
    Current affiliation:
    1. Dept. of Chemical Engineering, Kyungpook National University, Taegu, Korea
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  • Ho Nam Chang

    Corresponding author
    1. Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, Seoul, Korea
    • Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, Seoul, Korea
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Abstract

Little attention has been paid to the flow distribution among many thousands of fibers in the hollow-fiber modules of artificial kidney, ultrafiltration, and reverse osmosis devices despite its potential importance in the efficiency of the module. Numerical study by a finite-difference method, as well as experiment by direct sampling from individual fibers and high-speed photography of a color tracer, has shown that there exists a significant degree of nonuniformity in the flow distribution, which depends on the manifold design, the Reynolds number, and the pressure drop along the fibers.

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