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Determination of key parameters responsible for polymeric liner collapse in hyperbaric type IV hydrogen storage vessels

Julie Pépin 1 Eric Lainé 1 Jean-Claude Grandidier 1 Sylvie Castagnet 1 Pierre Blanc-Vannet 2 Philippe Papin 2 Mathilde Weber 2
1 ENDO - ENDOmmagement et durabilité ENDO
Département Physique et Mécanique des Matériaux - Département Physique et Mécanique des Matériaux
Abstract : 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 H2 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.
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https://hal.archives-ouvertes.fr/hal-02315527
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Submitted on : Monday, October 14, 2019 - 3:15:02 PM
Last modification on : Tuesday, January 11, 2022 - 2:20:02 PM

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Julie Pépin, Eric Lainé, Jean-Claude Grandidier, Sylvie Castagnet, Pierre Blanc-Vannet, et al.. Determination of key parameters responsible for polymeric liner collapse in hyperbaric type IV hydrogen storage vessels. International Journal of Hydrogen Energy, Elsevier, 2018, 43 (33), pp.16386-16399. ⟨10.1016/j.ijhydene.2018.06.177⟩. ⟨hal-02315527⟩

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