Computational approach for hydrogen leakage with crack propagation of pressure vessel wall using coupled particle and Euler method. (13th April 2017)

• Record Type: Journal Article
• Authors: Ishimoto, Jun; Sato, Toshinori; Combescure, Alain
• Is Part Of: International journal of hydrogen energy. Volume 42:Number 15(2017)
• Page Start: 10656
• Page End: 10682
• Publication Date: 2017-04-13
• Subjects: Hydrogen leakage -- Crack propagation -- Particle method -- Computational fluid dynamics -- Coupled analysis -- Pressure vessel; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2017.01.161
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: New computational approach for hydrogen leakage with wall crack propagation problem was conducted by using a hybrid of the coupled particle and Eulerian methods. This computational method provides useful safety information for predicting crack propagation and hydrogen leakage in pressure vessels as an important part of assessing hydrogen as an energy vector. The present computational analysis procedures consisted of two main parts. The first part was crack propagation analysis of a thin square plate, which simulated the wall of a high-pressure hydrogen vessel by using a particle method. The crack propagation was analyzed in high-pressure tank walls under two different types of initial conditions, and in both cases, the direction of crack propagation was freely determined by the direction of the stress field. This confirms the superiority of particle methods for modeling destructive phenomena. After the crack propagation analysis, the particle location and coordinate data of the barrier wall were converted to Euler mesh data. The geometric data of particle location were fitted to Euler numerical space, which was used for simulating high-pressure hydrogen leakage into air at atmospheric pressure. The differences and features of hydrogen diffusion during hydrogen leakage were analyzed for two types of wall data and two types of boundary conditions, as a result, the effect of wall boundaries on the hydrogen concentration distribution was computationally predicted. Graphical abstract: Image 1 Highlights: Hydrogen leakage accompany with tank wall crack propagation was newly analyzed. Coupled particle and Eulerian methods has been developed for hydrogen safety problems. Peridynamics model was verified as effective method for hydrogen tank crack analysis. Volume concentration of gaseous hydrogen leakage from crack was computationally predicted.