Work

Supplementary theoretical design framework for Type IV hydrogen storage vessel liners: A minimum wall thickness addressing discharge buckling failure

Year: 2025

Type: supplementary-materials

Abstract: The plastic liner is critical in Type IV hydrogen storage tanks due to its lightweight and hydrogen anti-embrittlement properties. However, hydrogen permeation from free volume and accumulation at the liner-composite interface can cause buckling under inappropriate rapid discharge. Existing studies focus on evaluating buckling under the assumption of its inevitability, examining parameters such as Thickness-to-diameter ratio and discharge rate, but neglect the underlying permeation-structure interaction and lack a systematic design approach for minimizing liner thickness. This work introduces a novel theoretical framework to determine the minimum wall thickness that prevents buckling under any discharge condition by coupling material permeability, structural parameters, and service pressure. The method allows early safety validation via material-level testing, reducing the need for extensive cycle type tests. Furthermore, a large-capacity hydrogen storage vessel is taken as an example, and representative experimental data are analyzed. This research provides a foundational design tool enhancing reliability, cutting development cost, and supporting standard optimization for high-pressure hydrogen vessels.

Source: Clean Energy Science and Technology

DOI: 10.18686/cest447

Authors: Xiulei Wang, Yan Zha, Pengcheng Xie, Weimin Yang

Institutions: Hefei General Machinery Research Institute (China), Beijing University of Chemical Technology, State Key Laboratory of Organic-Inorganic Composite Materials

Language: English

Topic: Hydrogen Storage and Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure

Open Access status: diamond

Funder: National Key Research and Development Program of China