Mass Transfer 1 min read
INTERPHASE MASS TRANSFER THEORY
The process of mass transfer from the bulk of one phase to the interphse surface and then from the interphase…
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Surface Renewal Theory
For the mass transfer in liquid phase, Danckwert (1951) modified the Higbie’s penetration theory. He stated that a portion of…
Mass Transfer 1 min read
Penetration theory
Most of the industrial processes of mass transfer is unsteady state process. In such cases, the contact time between phases…
Mass Transfer 2 min read
THEORIES OF MASS TRANSFER
Many theories are available to explain the behavior of mass transfer coefficient such as the film, penetration, surface renewal and…
Mass Transfer 2 min read
Mass transfer coefficient in hollow-fiber membrane module
Hollow-fiber membrane modules are extensively used in various membrane separation processes including gas separation, reverse osmosis, filtration and dialysis. In…
Mass Transfer 2 min read
Correlation of mass transfer coefficients for single cylinder
Bedingfield and Drew (1950) studied the sublimation from a solid cylinder into air which is flowing normal to its axis.…
Mass Transfer 1 min read
CORRELATION FOR CONVECTIVE MASS TRANSFER COEFFICIENT
In this section various correlations that are used to estimate the convective mass transfer coefficients for various cases are presented.…
Mass Transfer 2 min read
MASS TRANSFER COEFFICIENTS
Movement of the bulk fluid particles in the turbulent condition is not yet thoroughly understood. For gases it is fairly…
Mass Transfer 1 min read
Unsteady state Diffusion
If the change of concentration of a component A of the diffusive constituents in a mixture occurs over a time…
Mass Transfer 1 min read
FICK’S LAW OF DIFFUSION
Adolf Fick (1955) first described the molecular diffusion in an isothermal, isobaric binary system of components A and B[1-3]. According…
Mass Transfer 3 min read
What Is Mass Transfer?
Mass transfer describes the transport of mass from one point to another and is one of the main pillars in…
heat transfer 1 min read
Combined Convection and Conduction
This combination is likely to occur with the use of extended surfaces where the primary surface exchanges heat by convection…