| Téléchargement | - Voir le manuscrit accepté : Note: Determination of effective gas diffusion coefficients of stainless steel films with differently shaped holes using a Loschmidt diffusion cell (PDF, 592 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1063/1.3385673 |
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| Auteur | Rechercher : Astrath, N. G. C.1; Rechercher : Shen, J.1; Rechercher : Astrath, F. B. G.1; Rechercher : Zhou, J.1; Rechercher : Huang, C.1; Rechercher : Yuan, X. Z.1; Rechercher : Wang, H.1; Rechercher : Navessin, T.1; Rechercher : Liu, Z. S.1; Rechercher : Vlajnic, G.; Rechercher : Bessarabov, D.; Rechercher : Zhao, X.1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut d'innovation en piles à combustible du CNRC
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| Format | Texte, Article |
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| Sujet | Effective gas diffusion coefficient; Loschmidt diffusion cell |
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| Résumé | In this work, an in-house made Loschmidt diffusion cell is used to measure the effective O₂–N₂ diffusion coefficients through four porous samples of different simple pore structures. One-dimensional through-plane mas diffusion theory is applied to process the experimental data. It is found that both bulk diffusion coefficient and the effective gas diffusion coefficients of the samples can then be precisely determined, and the measured bulk one is in good agreement with the literature value. Numerical computation of three-dimensional mass diffusion through the samples is performed to calculate the effective gas diffusion coefficients. The comparison between the measured and calculated coefficient values shows that if the gas diffusion through a sample is dominated by one-dimensional diffusion, which is determined by the pore structure of the sample, these two values are consistent, and the sample can be used as a standard sample to test a gas diffusion measurement system. |
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| Date de publication | 2010-04-20 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 16869219 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | a27db8ac-0214-4e61-a68a-4dff0afd6a91 |
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| Enregistrement créé | 2011-02-15 |
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| Enregistrement modifié | 2020-04-17 |
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