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Study on the Modeling Technique for Prediction about Pressure Drop of an Intravenous Lung Assist Device  

김기범 (전북대학교 공과대학 화학공학부·공학연구원 공업기술연구센터)
권대규 (전북대학교 메카트로닉스연구센터)
정경락 (전북대학교 공과대학 화학공학부·공학연구원 공업기술연구센터)
Publication Information
Journal of Biomedical Engineering Research / v.24, no.4, 2003 , pp. 293-299 More about this Journal
Abstract
In this paper, the correlation of Pressure drop about the Newtonian and non-Newtonian fluid was investigated experimentally for vibrating intravascular lung assist device (VIVLAD) and we determined correlation equation to make a prediction about Pressure drop for designing VIVLAD. Design conditions to predict the pressure drop of the modules were studied through an experimental modeling before inserting the artificial lung assist device into as venous. Experiments were performed by distilled water, glycerol/water mixed solution(40% glycerol) of Newtonian fluids. and the bovine blood of non-Newtonian fluids. These fluids were flowed outside and parallel of hollow fiber membranes. Also we measured pressure drop according to the number of the fiber membranes which ware inserted into the inside diameter of shell of 3 cm, and developed the prediction equations by curve fitting method based on correlation between the experimental pressure drop and the frontal area or the packing density of device. The result showed that the Pressure drop and the friction factor of the water/glycerol mixed solution were similar to that of bovine blood. It was showed that the water/glycerol mixed solution (40% glycerol) could be used for measuring the pressure drop and the friction factor instead of the bovine blood. Also, we could estimate the prediction equation of pressure drop and friction factor as the function of Packing density at the number of hollow fibers. We obtained the reliance of the prediction equations because the pressure drop and the friction factor measured from the experiments were similar to that from the prediction equation. These results may be used to further usefulness for the design of VIVLAD.
Keywords
Artificial lung; Pressure drop; Hollow fiber membranes; Power law; Friction factor;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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