𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The Influence of Mass Transfer on a Porous Fuel Cell Electrode

✍ Scribed by Y.-P. Sun; K. Scott

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
172 KB
Volume
4
Category
Article
ISSN
1615-6846

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A one‐dimensional model for a porous fuel cell electrode using a liquid electrolyte with dissolved reactant is presented. The model consists of a Poisson, second‐order ordinary differential equation, describing the effect of the electric field and a one‐dimensional; Fickian diffusion, second‐order ordinary differential equation describing the concentration variation associated with diffusion. The model accounts for mass transport and heterogeneous electrochemical reaction. The solution of this model is by the approximate Adomian polynomial method and is used to determine lateral distributions of concentration, overpotential and current density and overall cell polarisation. The model is used to simulate the effects of important system and operating parameters, i.e. local diffusion rates, and mass transport coefficients and electrode polarisation behaviour.

πŸ“œ SIMILAR VOLUMES

Influence of Methanol Crossover on the F
Influence of Methanol Crossover on the Fuel Utilization of Passive Direct Methanol Fuel Cell
✍ Q.-Z. Lai; G.-P. Yin; Z.-B. Wang; C.-Y. Du; P.-J. Zuo; X.-Q. Cheng πŸ“‚ Article πŸ“… 2008 πŸ› John Wiley and Sons 🌐 English βš– 143 KB πŸ‘ 1 views

## Abstract The effect of methanol crossover on the fuel utilization of a passive direct methanol fuel cell (DMFC) was reported. The results revealed that the Faradaic efficiency decreased from 46.9 to 17.4% when methanol concentration increased from 1.0 to 8.0 mol L^–1^ at the lower current densit

Influence of sieve trays on the mass tra
Influence of sieve trays on the mass transfer of single drops
✍ Martin Henschke; Andreas Pfennig πŸ“‚ Article πŸ“… 2002 πŸ› American Institute of Chemical Engineers 🌐 English βš– 198 KB πŸ‘ 2 views

## Abstract Mass transfer on single drops was studied experimentally in a conical glass test cell on a laboratory scale. To determine the influence of internals on the mass transfer, two different sieve trays with hole diameters of 3 and 6 mm, respectively, were inserted into the cell. In the exper

Influence of Iron Ore Indirect Reduction
Influence of Iron Ore Indirect Reduction on the Transfer Process in Porous Media
✍ Li, Ming-Chun ;Tian, Yan-Wen ;Zhai, Yu-Chun πŸ“‚ Article πŸ“… 2008 πŸ› Curtin University of Technology 🌐 English βš– 434 KB πŸ‘ 2 views

## Abstract The solid material used in most metallurgical reactions can be considered as porous media consisting of the accumulated pellets. When the fluid flows through the porous media, various chemical reactions may occur between the fluid and solid matrix which have a significant effect on the