気泡-水相間の酸素の物質移動に関する研究

概要

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In order to study the mass transfer of oxygen from air bubbles to the aqueous solution, the effects of bubble velocity, vB, equivalent spherical diameter of bubble, dS, and bubble frequency, n, were examined. The experimental results are summarized as follows. (1) As the frequency of rising gas bubbles, n, increases, the liquid-film mass transfer coefficient of oxygen adjacent to the bubble, kL, decreases. However, the individual effect of vB, dS and n on kL was not very clear because of the mutual interactions among the factors. (2) The Sherwood number obtained in this work at higher bubble frequency was lower than those obtained in the previous works on a single gas bubble. (3) By applying a technique of multiple regression, the mass transfer coefficient was expressed as follows. kL=6.28vB(-1.051dS1.525n-0.111)
津山工業高等専門学校の論文
1979-10-15