期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 43, 期 33, 页码 16386-16399出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2018.06.177
关键词
Liner collapse; Hydrogen; Gas diffusion; Explosive decompression; Polyamide; Composite
资金
- French Research National Agency (ANR) through the Materiaux et procedes pour des produits performants (MATETPRO) program (project COLLINE) [ANR-13-RMNP-0007]
- French Government program Investissements d'Avenir (EQUIPEX GAP) [ANR-11-EQPX-0018]
Depressurization tests at a laboratory scale, coupled with numerical modelling, are used to determine the key parameters responsible for the polymeric liner collapse in hyperbaric type IV hydrogen storage vessels. X-ray tomography allows to determine the damages suffered by the sample during the depressurization step. Results show that the differential pressure induced during the depressurization step between the liner/composite interface and the free surface of the liner is the main factor responsible for the collapse of the liner. For a given temperature, this pressure gradient can be modified by changing the maximum H-2 pressure, the emptying rate or by adding a residual pressure plateau. Temperature is also of prime importance by influencing the yield point of the liner, the interface resistance and the amount of gas dissolved into the vessel. Thus, increasing temperature also increases the risk of liner collapse for the same gas exposure conditions. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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