Aerodynamic high-pressure hydrogen CFRP vessels with increased storage energy density: method for the optimization of a manufacturable laminate

Research output: Contribution to book/conference proceedings/anthology/reportConference contributionContributedpeer-review

Abstract

Hydrogen storage is one of the major challenges in the transition to hydrogen-based aviation. To store enough hydrogen with minimum storage weight, carbon fiber reinforced polymer (CFRP) high-pressure tanks in underwing pods are a promising option. Aerodynamic requirements, in addition to structural requirements, lead to advantages of an ellipsoid tank geometry over the classical cylindrical geometry. Ellipsoid hydrogen pressure vessels allow for a better utilization of the design space and therefore a higher hydrogen storage volume. During the design phase, the manufacturing process must be considered to allow for geometric adaptation of the CFRP shell while maintaining the ideal isotensoid stress state in the laminate. Friction during fiber placement allows a deviation from the geodesic filament path in the filament winding process to increase the degree of freedom for the geometry of the vessel. Analytical modelling tools are developed to calculate the required friction coefficient for the isotensoid design of a given ellipsoid geometry. The manufacturing and material parameters are then adjusted and experimentally verified to facilitate this isotensoid design. The analytical methodology is validated by finite element modelling of the winding process and physical manufacturing trials.

Details

Original languageEnglish
Title of host publicationProceedings of the 2023 International Conference on Composite Materials (ICCM23)
Number of pages12
Publication statusPublished - 3 Aug 2023
Peer-reviewedYes

Conference

Title23rd International Conference on Composites Materials
Abbreviated titleICCM 23
Conference number23
Duration30 July - 4 August 2023
Website
LocationICC Belfast
CityBelfast
CountryUnited Kingdom

External IDs

ORCID /0000-0003-1370-064X/work/143958864
ORCID /0000-0001-7887-0805/work/143958955
Scopus 85187544372

Keywords

Keywords

  • isotensoid, hydrogen storage, friction winding, non-cylindrical, non-geodesic filament winding, conformable pressure vessel