CP and mass transfer coefficient

CP is the accumulation of rejected solutes on the membrane surface. It reduces membrane permeability of the solvent and can lead to a limiting flux. Hence, controlling 

Ck)ncentration polarisation, Cp, as a function of slip coefficient, f I is fraction of water removed (1 - R /Rg (x/h) or channel length, a is normalised diffusion coefficient, (D/v h). 

For turbulent flow in a circular tube, the correlation is (Chilton—Colburn), 

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