Dominant fluid-solid mass and heat transfer

5 Dominant fluid-solid mass and heat transfer 

In the previous section, the case of fast interphase mass transfer was considered without any further simplification resulting from Equation 3.60 with respect to the fluid phase energy balance. Since 

Assuming reasonably fast radial heat dispersion, the perturbation parameter can be written in this case as 

The solid phase energy balance is also required to continue the calculation (a pseudo-homogeneous model for mass transfer is also considered)  

An equation for Tq is obtained by elimination of the transfer term in Equations 3.95 and 3.96 and making (Tq) To or using the results in Section 3.3. The interphase temperature gradient is given by AT xt = s The deviation in the 

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