On Heat and Mass Transfer Phenomena in PEMFC and SOFC and Modeling Approaches

Författare

Jinliang Yuan
M Faghri
Bengt Sundén

Summary, in English

There are similarities among various transport processes in solid oxide fuel cells

(SOFCs) and proton exchange membrane fuel cells (PEMFCs), but also some

differences. The present work concerns modelling and numerical analysis of

heat, mass transfer / species flow, two-phase transport and effects on the cell

performance in SOFCs and PEMFCs. Numerical calculation methods are further

developed to enable predictions of convective heat transfer and pressure drop in

flow ducts of the fuel and the oxidant. The unique boundary conditions (thermal,

mass) for the flow ducts in fuel cells are identified and implemented. The

composite duct consists of a porous layer, gas flow duct and/or solid current

inter-connector (or -collector). The results from this study are applicable for

other investigations considering overall fuel cell modeling and system studies, as

well as the emerging field of micro-reactor engineering.

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