Paper

Gas Transfer of an Implatable Artificial Lung


Authors:
Kyung-Hwa Kim; Jong-Beum Choi; Gi-Beum Kim
Abstract
The water flow characteristics in the implantable artificial lung (IAL) were evaluated by in vitro experiments. The 50-fiber modules were of different lengths but contained well-spaced fibers; and the 300-fiber module had a volume fraction of 0.9. A lower number of tired hollow fibers produce a higher water-side film coefficient of oxygen transfer at a constant velocity of water-side flow. The area of the water flow decreases with increasing hollow fiber packing density, thus if water is induced to flow uniformly in the IAL module, the oxygen transfer rate should monotonously increase with the packing density. The water flow in the IAL is not uniform and depends on the hollow fiber packing density. The stagnation of the water flow occurs in the bundle of the hollow fibers at the water inlet.
Keywords
Implantable Artificial Lung; Hollow Fiber Membranes; Mass Transfer Coefficient; Gas Diffusion
StartPage
74
EndPage
79
Doi
10.5963/BER0303002
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