.... The developed model is based on the governing equations of heat, mass, and momentum transport, which are solved together with global reforming reaction kinetics. The result shows that the heat generation within the cell depends mainly on the initial fuel composition and the inlet temperature. This means...

...Hong Huang; Tim Holme; Fritz B. Prinz One of the crucial factors for improving intermediate-temperature solid oxide fuel cell (SOFC) performance relies on the reduction in the activation loss originating from limited electrode reaction kinetics. We investigated the properties and functions...

.... Our analysis is supported by simulations. The results presented in this paper can be applied in predicting steady-state conditions and certain transient behaviors and will be useful in control development for SOFC systems. electrochemistry heat transfer mass transfer reaction kinetics solid...

... York . 11 07 2007 02 12 2007 17 08 2009 carbon compounds electrochemical electrodes heat transfer hydrogen compounds proton exchange membrane fuel cells reaction kinetics dynamic modeling stationary PEM fuel cell system reformer PI controller PEM fuel...

... is currently extended in several respects. As already stated, the project behind this work is aimed at detailed methanol kinetics measurements, so different variants of reaction kinetics for methanol are under consideration. Ohmic losses in the porous matrix and the electrolyte are to be considered, together...

... a sensitivity analysis with respect to the physical reference case and geometric parameters. The results indicate that surface diffusion might play a major role for the reaction kinetics, but only if the air pore is void of liquid water. In contrast, the formation of liquid water in the gas pores will turn...

... between transport and reactions: catalytic reaction kinetics measured in flow cells (Fuhrmann) and upscaling at the triple phase boundary between catalyst, membrane, and pore space in the porous catalyst layer (Berg). These topics show prominently the width of the field of PEM fuel cell modeling...

... catalyze the rate-determining step for the DAFCs’ development and further commercialization. Furthermore, taking into account that fuel choice is still a disputed issue, the alcohols suitable as potential fuels for DAFCs are also summarized and compared. 30 11 2005 28 06 2006 reaction...

.... The experimental results were fitted well with the kinetic model available in literature. 25 07 2005 28 03 2006 hydrogen economy chemical reactors catalysts proton exchange membrane fuel cells reaction kinetics X-ray diffraction scanning electron microscopy zinc compounds copper compounds...

... electrochemical electrodes diffusion porous materials ceramics oxygen hydrogen convection flow simulation reaction kinetics carbon compounds organic compounds SOFC CPIM porous media fuel cell simulations Solid oxide fuel cells (SOFCs) produce electrical power very efficiently without...

... are using commercially available CFD codes to solve the transport equations and are developing custom code to account for electrochemical processes in fuel cells. solid oxide fuel cells temperature distribution reaction kinetics computational fluid dynamics heat conduction convection carbon...

... voltage. It is shown how these can be applied in order to assist the design of an anode. 03 09 2004 27 01 2005 electrochemical electrodes solid oxide fuel cells mass transfer porous materials reaction kinetics anodes Solid-oxide fuel cells (SOFC) are being investigated...