Failure Analysis of Novel BOSS Structures for Type IV Hydrogen Storage Vessels

Jiqi Zhu, Yan Li, Wenhong Cao, Yuebing Li () and Zengliang Gao
Additional contact information
Jiqi Zhu: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
Yan Li: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
Wenhong Cao: Zhejiang Rein Gas Equipment Co., Ltd., Shaoxing 312000, China
Yuebing Li: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
Zengliang Gao: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310032, China

Energies, 2023, vol. 16, issue 10, 1-15

Abstract: This study focuses on the critical connection area between type IV hydrogen storage vessels and external valves, which is commonly referred to as the BOSS structure. The novel BOSS structures were proposed to further ensure the safety of pressure vessels. In order to identify optimal structure that meet industrial requirements, finite element models were performed to analyze and compare the effectiveness of the proposed models in terms of strength, fatigue, and sealing performance. Some influences were discussed, including the angle of inclination of the stop-rotation platform and the number of sealing grooves in the BOSS structures. The results showed that the fatigue life of the proposed BOSS structures can exceed the design life of 30,000 cycles using austenitic stainless steel S31603. The maximum contact stresses were higher than the operating pressure of 58 MPa. Additionally, The BOSS structure model designed with a stop-rotation platform featuring a 65° tilt angle and two sealing grooves had the lowest mean square deviation of contact stress, which was 13.47 MPa, indicating reliable sealing performance.

Keywords: hydrogen storage vessel (type IV); boss structure; finite element analysis; strength verification; seal failure (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/16/10/4005/pdf (application/pdf)
https://www.mdpi.com/1996-1073/16/10/4005/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:16:y:2023:i:10:p:4005-:d:1143344

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().