ICCAS OpenIR
Numerical simulation of diffusivity of hydrogen in thin tubular metallic membranes affected by self-stresses
Zhang, WS; Hou, MQ; Wang, HY; Fu, YB
2004-09-01
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN0360-3199
Volume29Issue:11Pages:1165-1172
AbstractBased on the self-stress theory for hydrogen in thin tubular shells, we numerically calculate apparent diffusion coefficients (ADCs) of hydrogen in membranes obtained from the time-lag and half-rise methods under chemopotential- and flux-step boundary conditions. It is found that ADCs differ from the diffusion coefficient under stress-free conditions when either the initial concentration or the chemopotential-step (or flux-step) is taken to be a nonzero value. At the same time, effects of other parameters on values of ADC are discussed as well. The theoretical results are qualitatively consistent with the available experimental data. Our results indicate that a small current will give the minimum error in determining the diffusion coefficient while the initial hydrogen content is nonzero. (C) 2003 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
KeywordHydrogen Diffusion Diffusion Coefficient Self-stress Thin Membranes
DOI10.1016/j.ijhydene.2003.10.007
Indexed BySCI
Language英语
WOS IDWOS:000221946700011
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/82030
Collection中国科学院化学研究所
Corresponding AuthorZhang, WS
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621900, Peoples R China
Recommended Citation
GB/T 7714
Zhang, WS,Hou, MQ,Wang, HY,et al. Numerical simulation of diffusivity of hydrogen in thin tubular metallic membranes affected by self-stresses[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2004,29(11):1165-1172.
APA Zhang, WS,Hou, MQ,Wang, HY,&Fu, YB.(2004).Numerical simulation of diffusivity of hydrogen in thin tubular metallic membranes affected by self-stresses.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,29(11),1165-1172.
MLA Zhang, WS,et al."Numerical simulation of diffusivity of hydrogen in thin tubular metallic membranes affected by self-stresses".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 29.11(2004):1165-1172.
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