Analysis of the Boss Structure of Type Ⅳ Composite Vessel for a High-Pressure Hydrogen Tube Trailer

Zhiwen Meng, Suke Jin, Meng Yu, Abel Mehari and Long Jiang ()
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Zhiwen Meng: Special Equipment Safety Supervision and Inspection Institute of Jiangsu Province, Nanjing 210036, China
Suke Jin: Special Equipment Safety Supervision and Inspection Institute of Jiangsu Province, Nanjing 210036, China
Meng Yu: Special Equipment Safety Supervision and Inspection Institute of Jiangsu Province, Nanjing 210036, China
Abel Mehari: Key Laboratory of Refrigeration and Cryogenic Technology of Zhejiang Province, Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, China
Long Jiang: Key Laboratory of Refrigeration and Cryogenic Technology of Zhejiang Province, Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, China

Sustainability, 2024, vol. 16, issue 12, 1-15

Abstract: Currently, large-volume type IV composite vessel tube trailers garner significant attention and development within the hydrogen energy storage and transportation industry due to their cost-effectiveness and practicality. This study aims to assess the static strength and sealing performance of the boss structure in order to optimize its design. Firstly, a model of the mouth structure of type IV vessels was constructed to analyze the stress distributions in the boss and liner. Subsequently, innovative boss and liner structures were developed based on the primary mouth structure to investigate the impact of geometric dimensions through finite element analysis. This study revealed that changes in geometrical dimensions led to significant alterations in the stresses of the plastic liner in comparison to metallic bosses. Building upon these findings, the structural safety and sealing performance of the boss and liner structure were further validated through finite element analysis. The outcomes of this research can serve as a reference for guiding the structural design of bosses and aiding in the development of hydrogen storage vessels.

Keywords: type IV hydrogen cylinder; boss structure; finite element analysis; sealing structure (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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