Mass Transfer Rates into Falling Liquid Film on an Inclined Plate

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  • 傾斜流下液膜における物質移動速度
  • ケイシャ リュウカ エキマク ニ オケル ブッシツ イドウ ソクド

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Gas absorption experiments were carried out for the CO2-water system using an inclined plate. Liquid-phase concentration, surface velocity and thickness of liquid film in liquid flow direction were measured to clarify the relationship between mass transfer rates and flow conditions of liquid film.<BR>Critical points were observed in the concentration curves of CO2, and the flow conditions probably can be classified into two regions (laminar and turbulent).<BR>For the laminar region, the experimental values coincided very well with the theoretical ones of the penetration model.<BR>For the turbulent region, the surface renewal model could be applied to reproduce the experimental results. Better correlations between the fractional rate of surface renewal, liquid Reynolds number and a factor involving the effect of plate inclination were obtained.

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