310 数値流体解析を用いた体外循環用熱交換器の内部形状に関する研究(ライフサポートにおける工学技術,オーガナイズドセッション)

概要

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In recent years, artificial heart lung machine have been used as a circulation support system during open-heart surgery in clinical. There is a heat exchanger in the artificial heart lung apparatus and the heat exchanger is used to adjust the blood temperature for hypothermia. Hypothermia prevents brain, medulla spinalis and internal organs from receiving damage by lowering the temperature. Heat transfer efficiency depends on internal structure of the heat exchanger. The elements of internal structure are pipe arrangement, pipe diameter, pipe distance and pipe superficial area. However, there is not the design and the development guideline of the heat exchanger and huge amount of time was wasted for trial and error of designing. In this study, we investigated relation between each element of the heat exchanger (pipe array, pipe diameter and pipe distance) and heat exchange ability by using CFD.
社団法人日本機械学会の論文
2008-09-12