Modeling of Packed Bed Superheaters

Morrow (1988) has presented a model of a packed bed superheater and then verified the model with real-time experiments. Important aspects of this model include the application of scaling arguments to simplify a general model form. In addition, the effect of the superheater endcaps and the conduction of heat along the wall is included in the model. The model developed in this section can be applied to the vaporization and superheating of any fluid. 

The equation describing axial conduction of heat along the superheater wall is developed through a shell balance. Finally, a method of including the properties of the large endcaps of the superheater is developed. Including the endcaps in the model introduces discontinuous first spatial derivatives of the superheater wall temperature. 

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