| Abstract This paper consists of two parts dealing with gas-liquid dispersion and mass transfer characteristics in stirred vessel. In part(I), an apparatus equipped with optical and microprocessor for measuring the interfacial area by light scattering method is described and the results of measurement of interfacial area, gas-hold up and mass transfer coefficients are presented. Based on the rising motion of a single bubble in static liquid of infinite dimension and on the isotropic turbulance theory, the rising velosity of a single bubble in turbulent liquid has been derived, with some reasonable assumptions, We have obtained the relationships between gas-hold up, interfacial area and other operating varibles, and they can correlate well the experimental data. In part(��), the relationships of surface-renewing frequency, turbulent parameters and operational varibles have been derived, combining the equa-tions derived in part(I) and part(��), the mass transfer coefficients ha-ve been calculated. The agreement with the experimental data is satisfac-tory. |
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1987, Vol. 4 
