1471 矩形気泡塔の流動特性および物質移動特性(S37-3 混相流動のダイナミックス(3),S37 混相流動のダイナミックス)

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  • 1471 A characteristic of flow structure and mass transfer in a Rectangular Bubble Column

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In order to estimate the performance of a bioreactor, it is important to consider a relation between mass transfer and the flow structure. In this paper, we focus on a characteristic of mass transfer in a rectangular bubble column. At first, we measured simultaneously bubble parameter (bubble diameter, velocity and void fraction) and concentration of dissolved carbon dioxide by using an F-TOP (Four-Tip Optical-fiber Probe) and a specific conductivity meter. We evaluate mass transfer capacity coefficients (K_LA). Then mass transfer rates (K_L) were calculated by total specific surface area via an F-TOP and mass transfer capacity coefficients.

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