Constitutive Equation for Heat Transfer Caused by Mass Transfer

Authors: Jordan Musser ^a, Madhava Syamlal ^a, Mehrdad Shahnam ^a, and David Huckaby ^a
a National Energy Technology Laboratory, Morgantown, WV, United States

Source: This paper was published in 2014, Volume 123 of Chemical Engineering Science.

Abstract: This paper presents a constitutive equation for the thermal heat transfer associated by mass transfer, applicable to both Eulerian–Eulerian and Eulerian–Lagrangian multiphase computational fluid dynamic models. The proposed equation was incorporated into the open-source multiphase CFD code MFIX (https://mfix.netl.doe.gov) to demonstrate that the numerical predictions match experimental data for the limiting cases of evaporation and condensation. The application of the proposed equation to two cases of a reacting carbon particle yields physically consistent expressions for the heats of reaction.