Computer-aided design of hollow-fiber dialyzers

Y. Suzuki, F. Kohori, K. Sakai

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Blood and dialysate flow patterns in hollow-fiber dialyzers are complicated, and hence the flow patterns and mass transfer are difficult to analyze theoretically. Consequently, dialyzers are usually developed by a trial-and-error method. We attempt to design dialyzers by computer simulation analysis in this work. Blood-side and dialysate-side flows were modeled using the Hagen-Poiseuille equation and the Blake-Kozeny equation, respectively. These flow patterns were evaluated as pressure drop and velocity distribution. The mass transfer rate was evaluated as solute clearance. Computed values of the pressure drops and clearance for urea and vitamin B12 were found to agree closely with those obtained experimentally. We evaluated the influences of the inner diameter of hollow fibers, module geometry, and void fraction on the pressure drop and clearance, and computer-aided design was performed.

Original languageEnglish
Pages (from-to)326-330
Number of pages5
JournalJournal of Artificial Organs
Volume4
Issue number4
DOIs
Publication statusPublished - 2001 Jan 1

Keywords

  • Clearance
  • Computer-aided design
  • Hollow-fiber dialyzer
  • Pressure drop
  • Simulation

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Biomaterials
  • Biomedical Engineering
  • Cardiology and Cardiovascular Medicine

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