Effective Diffusivity of Packed Bed

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  • 充填層における有効拡散係数

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Description

Effective diffusivities of packed beds containing crushed calcite, beach sand and lead shots were obtained by examining diffusion of non-flowing benzene and watcr vapor through them.<BR>To compare these diffusivities with electric conductivities, specific electric conductivities of similar beds were observed as function of fractional void, and the result wasreprcsented by experimental formula as follows.<BR>The ratio of De/Df obtained from this investigation was in agreement with that of k /kf, <BR>D : Effective diffusivity of packed bed<BR>Df: Diffusivity of fluid<BR>k : Specific electric conductivity of packed bed<BR>kf: Specifice lectric conductivity of fluid<BR>ε: Fractional void

Journal

  • Chemical engineering

    Chemical engineering 21 (1), 2-7, 1957

    The Society of Chemical Engineers, Japan

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