This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Practical Method of Hydrogen Diffusion Simulation for Fuel Cell Electric Vehicle Development
Technical Paper
2012-01-1231
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Research was conducted on a method for the simulation of the diffusion of pressurized hydrogen leaking at high speed from a small opening into the complexly shaped space of a fuel cell electric vehicle with a practicable calculation time.
The fact that the scale of the calculations was large and the calculation time was therefore extended represented issues in relation to this simulation method. The reduction of calculation time through the use of a three part partitioning method was proposed in order to resolve this issue. In this method, the calculation region is divided into three: In the first part, steady-state compressible flow calculations are conducted for the region close to the hydrogen outlet where the Mach number is higher than 0.5. In the second part, steady-state incompressible flow calculations are conducted for the process in which the hydrogen flow spreads and its flow rate declines in the space surrounding the first part space, using the results from the first part as boundary conditions. In the third part, unsteady-state incompressible flow calculations are conducted for all remaining calculation regions, using the results from the second part as boundary conditions.
The three part partitioning method was used to simulate the diffusion of hydrogen around the hydrogen tank of a fuel cell electric vehicle. Using the method, it was possible to calculate the behavior of the hydrogen over a 30-second period in four days. In addition, a good quantitative match between calculation values and test values for hydrogen concentration was achieved.
Authors
Topic
Citation
Matsumoto, M. and Shimizu, K., "Practical Method of Hydrogen Diffusion Simulation for Fuel Cell Electric Vehicle Development," SAE Technical Paper 2012-01-1231, 2012, https://doi.org/10.4271/2012-01-1231.Also In
References
- Zheng, J. Y. Bie, H. Y. Xu, P. Zhao, Y. Z. Liu, Y. L. “Numerical Simulation of Hydrogen Release from High-Pressure Storage Vessel 3rd International Conference of Hydrogen Safety 193 2009
- New Energy and Industrial Technology Development Organization “Suisono Yukoriyou Gaidobukku” 554 561 2008
- Michael, R. S. Eric, S. G. Matthew, N. S. “Risk incurred by hydrogen escaping from containers and conduits” Proceedings of 1998 U.S. DOE Hydrogen Program Review, NREL/CP-570-25315 1998
- Tchouvelev, A. V. Devaal, J. Cheng, Z. Corfu, R. Rozek, R. Lee, C. “CFD modeling of hydrogen dispersion experiments for SAE J2578 test methods development” 2nd International Conference of Hydrogen Safety 3.1.145 2007
- FLUENT Inc. “FLUENT6.3 User's Guide” 2006
- Nohmi, T. Maekawa, M. Mogi, T. “Suiso Ion Sensa” Suiso Enerugi Sisutemu 33 2 54 59 2008