Oxygen transfer performance of a membrane oxygenator composed of crossed and parallel hollow fibers

Kenichi Nagase, Fukashi Kohori, Kiyotaka Sakai

    Research output: Contribution to journalArticle

    13 Citations (Scopus)

    Abstract

    We have evaluated the mass transfer performance of four commercially available membrane oxygenators in which the blood path is external to and approximately perpendicular to the fiber bundle. Water flowed outside the hollow fibers as an oxygen carrier medium and substitution for blood, and nitrogen gas flowed inside the hollow fibers. The oxygen transfer rates in the membrane oxygenators were measured, and their mass transfer coefficients were obtained. When we analyzed the mass transfer performance using the theory of heat transfer across tube banks, the Sherwood numbers were obviously divided into two regions; one was the data for parallel hollow fibers, and the other was the data for crossed hollow fibers. This indicates that the mass transfer performance of the membrane oxygenator is attributable to the hollow fiber arrangement namely, parallel and crossed hollow fibers, in the same manner as that for heat transfer across tube banks (staggered and in-line bank). New mass transfer correlations have been developed for the membrane oxygenators composed of parallel hollow fibers and crossed hollow fibers. These mass transfer correlations may be used as a guide for the design of a new and efficient membrane oxygenator.

    Original languageEnglish
    Pages (from-to)105-113
    Number of pages9
    JournalBiochemical Engineering Journal
    Volume24
    Issue number2
    DOIs
    Publication statusPublished - 2005 Jun

    Fingerprint

    Oxygenators
    Membrane Oxygenators
    Oxygen
    Membranes
    Fibers
    Mass transfer
    Hot Temperature
    Tubes (components)
    Blood
    Nitrogen
    Gases
    Water
    Substitution reactions

    Keywords

    • Artificial lung
    • Biomedical
    • Gas-liquid mass transfer
    • Hollow fibers
    • Mass transfer correlation
    • Oxygen transfer

    ASJC Scopus subject areas

    • Biotechnology
    • Bioengineering
    • Chemical Engineering(all)

    Cite this

    Oxygen transfer performance of a membrane oxygenator composed of crossed and parallel hollow fibers. / Nagase, Kenichi; Kohori, Fukashi; Sakai, Kiyotaka.

    In: Biochemical Engineering Journal, Vol. 24, No. 2, 06.2005, p. 105-113.

    Research output: Contribution to journalArticle

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