MAXWELL-STEFAN FORMULATION OF IRREVERSIBLE THERMODYNAMICS FOR SIMULTANEOUS HEAT AND MASS-TRANSFER

We consider constitutive relations for diffusion and simultaneous heat conduction in an n-component nonideal fluid mixture. Using the ideal gas treatment of Hirschfelder, Curtiss and Bird as a basis, we develop the generalization of the Maxwell-Stefan diffusion equations. The application of the second law of thermodynamics is shown to impose non-negativity constraints on the defined diffusion coefficients, Dik, The practical usefulness of the Generalized Maxwell-Stefan formulation is demonstrated by a few examples. © 1979, Taylor & Francis Group, LLC. All rights reserved.