Evaporation, two phase flow, and thermal transport in porous media with application to low-temperature fuel cells
Document Type
Article
Publication Date
10-2013
Department
Department of Mechanical Engineering-Engineering Mechanics
Abstract
A pore level model of the vapor transport, heat transfer, and evaporation are incorporated into a network model to study the mass transport inside a porous transport layer of proton exchange membrane (PEM) fuel cell. Viscous models are used for the flow of liquid water and for the air-vapor mixture. Thermal transport is included by performing an energy balance at each pore. Existing models for vapor transport and evaporation are adapted for incorporation into the network model. The effect on the water transport of different gas channel conditions such as temperature and relative humidity is studied. Effective thermal conductivities and vapor diffusivities are calculated from the simulation and compared against published values.
Publication Title
International Journal of Heat and Mass Transfer
Recommended Citation
Medici, E. F.,
&
Allen, J.
(2013).
Evaporation, two phase flow, and thermal transport in porous media with application to low-temperature fuel cells.
International Journal of Heat and Mass Transfer,
65, 779-788.
http://doi.org/10.1016/j.ijheatmasstransfer.2013.06.035
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/6532