Set up the model to describe the system. (b) Express the model in terms of dimensionless quantities.

Diffusion across a porous plug: the effect of a third component (adapted from BSL). When two gases A and B are forced to diffuse through a third gas C, there is a tendency of A and B to separate because of the difference in their diffusivities in gas C. This phenomenon could possibly be used for isotope separation. Consider a “diffusion tube” of diameter d and length L packed with some non-reacting material such as glass wool. One end of the tube, z = 0, the feed side, is maintained at mole fractions of xAf and xBf. The other end, the product end, z = L, is maintained at xAp and xBp. Your task is to model the degree of separation that can be achieved in this system and to find the fluxes of the various species across the tube. (a) Set up the model to describe the system. (b) Express the model in terms of dimensionless quantities. (c) Show or discuss a procedure to solve the model. Set up computations in MATLAB.

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set up and solve a case-study example of the light-intensity distribution in a photochemical reactor.

Photochemical reactor modeling: a case-study problem. Although radiation is important in heat transfer, an analogous model can be used in the design of photochemical reactors. The modeling of these reactors….

Write a critique on this technique of secondary-emission measurement.

Secondary-emission measurement: a case-study problem. An indirect way of measuring of secondary emission from ponds or large bodies of water used in waste treatment is to measure the concentration and….

set up a mass transfer model and evaluate the variation of the local mass transfer coefficient at various locations in the plate.

Chemical vapor deposition (CVD) on an inclined susceptor: a case-study problem. An important application of convective mass transfer theory is in CVD processes employed to coat surfaces with thin films….