Stationary-state solutions Robin boundary conditions

Stationary-state solutions Robin boundary conditions 

A different set of boundary conditions is that for which the concentration and temperature excess at the edge of the slab are determined by the two fluxes from the pellet. Thus, these Robin conditions have the form 

There are two new parameters—the Biot numbers for heat and mass transfer at the surface, (Bi)T and (Bi)M. We can also distinguish their quotient 7 = (Bi)x/(Bi)M. The two cases a 1 and a 1 have different stationary-state possibilities. 

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Stationary-state solutions Robin boundary conditions... 

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