Deriving the Energy Balance for a PFR

We will carry out an energy balance on the volume AV There is no work done. i.e IF, = 0, so Equation (11-10) becomes 

The heat flow to the reactor, AQ, is given in terms of the overall heal transfer coefficient. U, the heat exchange area, AA, and the difference between the ambient temperature T and the reactor temperature T. 

DifT entiating the enthalpy Equation (II -19) with respect to V 

This form of ihe energy balance will also be applied to multiple reactions. 

For exothermic reactions, we note that when the heat generated, is greater than the heat removed Q, (i.e., the temperature will 

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