ISSN:
1741-0444
Keywords:
Artificial lung
;
Gas transfer
;
Membrane oxygenator
;
Oxygenator
;
Reciprocating motion
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
Notes:
Abstract A method of increasing the rate of oxygen transfer into the liquid in a membrane oxygenator was investigated. A reciprocating motion was imparted to a microporous membrane separating a deoxygenated saline solution from air, and the concentration of dissolved oxygen was measured. Rates of oxygen transfer were calculated for a smooth membrane surface in contact with the liquid, for a screen-roughened surface, and for a roughened surface with additional turbulence promoters attached. The mass transfer coefficients obtained from these experiments are in the upper range of literature values for membrane oxygenators. The screen roughness increased the transfer rates by a factor of approximately three compared with the smooth surface. The turbulence promoters had no further effect.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02464031
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