Correlation for the effective gas diffusion coefficient in carbon paper diffusion media (Record no. 170854)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02043nab a2200205 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s2009 xxu |
| 245 00 - TITULO | |
| Título | Correlation for the effective gas diffusion coefficient in carbon paper diffusion media |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Lugar de publicación, distribución, etc. | |
| Nombre de publicador, distribuidor, etc. | |
| Fecha de publicación, distribución, etc. | nov./dic. 2009 |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 09/06/2010 ; 09/06/2010 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 9 p. ; 6070-6078 |
| 520 ## - RESUMEN, ETC | |
| Resumen | Transcripción del resumen del autor. The understanding of mass transport limitations in polymer electrolyte membrane (PEM) fuel cells is crucial in the research and progress of this technology. The structure of the components, specifically the as diffusion layer (GDL), of PEM fuel cells, is complex. Thus, for the purpose of simulating mass transport in the GDL, the effect of the structure on the diffusion coefficient is taken into account by introducing an effective diffusion coefficient. The effective diffusion coefficient of a gas is lower than its corresponding bulk diffusion coefficient due to the presence of a solid matrix in the porous materials. Currently, the Bruggeman approximation is the most widely used correlation for estimating the effective diffusion coefficient in the GDL. Other semiempirical models are also available. However, these correlations overestimate the effective diffusion coefficient due to the assumptions on which they are based. In this study, correlations for the through-plane and in-plane diffusibility in the GDL are developed based on a three-dimensional (3D) simulation of gas diffusion in the GDL. The 3D structure of the TORAY carbon paper with no binding material is reconstructed using stochastic models and used as the modeling domain. The numerical results are shown to have a good agreement with experimental data of diffusibility in both directions. Correlations for two different porosity ranges are given. |
| 581 ## - ESTADO DE COLECCIÓN | |
| Estado de colección | 6 |
| 773 0# - CORRECCIÓN | |
| Título | Energy & fuels |
| Partes relacionadas | 23 |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Artículo de Revista |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Zamel, Nada |
| 9 (RLIN) | 42417 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Li, Xiaohong |
| 9 (RLIN) | 42418 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Shen, Jun |
| 9 (RLIN) | 42419 |
| Biblioteca propietaria | Biblioteca actual | Fecha de adquisición | Inventario | Total de préstamos | Inventario | Fecha de carga | Tipo de item KOHA |
|---|---|---|---|---|---|---|---|
| Biblioteca Alejandro Angel Bulgheroni | Biblioteca Alejandro Angel Bulgheroni | 05/03/2026 | 200045708 | 200045708 | 05/03/2026 | Artículo de Revista |
