Three commercially available gas diffusion layers were investigated by 3D X-ray computed tomography (CT). The carbon fibers and the 3D structure of the gas diffusion layers were clearly resolved by this lab-based technique.
Based on 3D structures reconstructed from tomography data, the macroscopic, anisotropic effective thermal conductivities of the gas diffusion layers were calculated by solving the energy equation considering a pure thermal conduction problem. The average in-plane thermal conductivity for all samples, the carbon cloth and the two carbon papers, is by about a factor 4-12 larger than the average through-plane thermal conductivity. Furthermore, a clear dependence of thermal conductivity on the porosity and - especially for the carbon cloth - also on the local orientation of the fibers was observed.
PFRANG Andreas;
VEYRET Damien;
SIEKER Frank;
TSOTRIDIS Georgios;
2010-04-13
PERGAMON-ELSEVIER SCIENCE LTD
JRC55971
0360-3199,
www.elsevier.com/locate/he,
https://publications.jrc.ec.europa.eu/repository/handle/JRC55971,
10.1016/j.ijhydene.2010.01.085,
| Name | Country | City | Type |
|---|
This document is only visible at the Commission level.
You are not authorized to publish or distribute it outside the European Commission.
This is a public document. You can share this publication.
Datasets
| ID | Title | Public URL |
|---|
Dataset collections
| ID | Acronym | Title | Public URL |
|---|
Scripts / source codes
| Description | Public URL |
|---|
Additional supporting files
| File name | Description | File type |
|---|