Entropy generation due to mixed convection between vertical parallel plates under isoflux/isothermal boundary conditions

Abstract

Paper presented at the 7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Turkey, 19-21 July, 2010.

The optimum values of the modified buoyancy parameter (Gr!R.e)optimum at which the entropy generation assumes its minimum for fully developed mixed convection in vertical channel between parallel plates have been obtained analytically and presented in this article for thermal boundary condition of the 4th kind. This thermal boundary condition is obtained via subjecting one plate to uniform heat flux (isoflux) while keeping the opposite plate isothermal. The effects of other operating parameters on the entropy generation are also discussed.