Analysis of mass transfer in hollow-fiber membranes Original Research Article

The mixing-cup concentration was investigated under different flow conditions (parabolic flow and plug flow in the lumen side of hollow fibers) and at different values of the concentration-dependent diffusion and solute distribution coefficient. The concentration dependency of both coefficients was defined by two different functions and integrated analytically as examples. The mixing cup concentration was calculated by the numerical method. The mixing cup concentration was plotted as a function of an axial coordinate under different conditions.