Biochemical Engineering - Agitation and Aeration - Discussion

Discussion Forum : Agitation and Aeration - Section 1 (Q.No. 12)

Agitation and Aeration

12.

Penetration theory assumes that turbulent eddies travel from the bulk of the phase to the interface where they remain constant for a constant exposure time (t_e). The model correlating K_L, mass transfer coefficient and D_AB, diffusivity can be expressed as

K_L = 2(D_AB/πt_e)^0.25

K_L = 2(D_AB/πt_e)^0.5

K_L = 2(D_AB/πt_e)^0.75

K_L = 2(D_AB/πt_e)