A modified shape normalization, which was successfully used earlier for monoporous pellets, has now been defined for pellets which have a biporous structure. Such a normalization consolidates the η-gf curves into a single curve. The biporous effectiveness for any arbitrary shape can now be evaluated with a high degree of accuracy using the infinite slab effectiveness. With this modification, the spread in the curves for various shapes is less than 6%. © 1995.

Valadi Krishnamoorthy Jayaraman

Center for Informatics

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