Mass Transfer Coefficient Correlations. Assuming that the wetted surface on packing pieces is identical with the gas liquid interface onda et al. Chemicsmasstransfercorrelationsconvectivemtcoeffdm dp epsilon re sc source estimate the convective mass transfer coefficient in packed beds using the wilson and geankoplis correlation.
Sherwood correlation would be written as follows. In fact the mass transfer equation is obtained based on the analogy with the heat transfer equation q qa h dt. For instance the overall mass transfer coefficients for the oxygen water system has been measured see msh fig 1821 p.
Sh sh nc 0347 resc 05 062 334 in the range of 1 re 310 4 and 06 sc 3200 sh nc 20 0569 gr d sc 14 335 in the range of gr d sc 10 8 and.
Mass transfer fundamentally changes in transition to a turbulent flow. In fact the mass transfer equation is obtained based on the analogy with the heat transfer equation q qa h dt. The mass transfer coefficient may be obtained from the following correlation. If the total length of the plate is l then the length averaged mass transfer coefficient is found from the equation 4 where re l lu 0 ν.