MIXED CONVECTION FILM BOILING OF A BINARY MIXTURE ON A HORIZONTAL CYLINDER EMBEDDED IN A POROUS-MEDIUM

A theoretical analysis has been developed to study the effects of liqu id subcooling and velocity on the film boiling heat transfer process f rom a horizontal cylinder to a binary liquid mixture of various concen trations in a porous medium. The governing equations are solved by mea ns of similarity transformations. The resulting set of ordinary differ ential equations are numerically solved by the fourth-order Runge Kutt a method combined with a shooting technique. Heat transfer results are obtained for a range of operating conditions.