A study of Nusselt and Sherwood numbers in a monolith reactor

A two-dimensional model of a single channel of a monolith reactor is used t o evaluate the values of the Nusselt and Sherwood numbers under reaction co nditions. The circular channel is assumed to have axisymmetry with a first- order reaction occurring at the wall. The values of the Nusselt and Sherwoo d numbers do not correlate uniquely with the Graetz number but rather depen d on the reaction rate at the wall. Hence they depend on such variables as gas velocity, inlet temperature and reactant concentration. (C) 1999 Elsevi er Science B.V. All rights reserved.