Establishing Localized Fire Test Methods and Progressing Safety Standards for FCVs and Hydrogen Vehicles
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Résumé
<div class="section abstract"><div class="htmlview paragraph">The SAE Fuel Cell Vehicle (FCV) Safety Working Group has been addressing FCV safety for over 11 years. In the past couple of years, significant attention has been directed toward a revision to the standard for vehicular hydrogen systems, SAE J2579<sup>(<span class="xref">1</span>)</sup>. In addition to streamlining test methodologies for verification of Compressed Hydrogen Storage Systems (CHSSs) as discussed last year,<sup>(<span class="xref">2</span>)</sup> the working group has been considering the effect of vehicle fires, with the major focus on a small or localized fire that could damage the container in the CHSS and allow a burst before the Pressure Relief Device (PRD) can activate and safely vent the compressed hydrogen stored from the container.</div><div class="htmlview paragraph">Even though there have been no incidents of localized fire causing failure of CHSS in FCVs or hydrogen vehicles, a few incidents of localized fire and subsequent container burst have occurred in Compressed Natural Gas (CNG) vehicles.<sup>(<span class="xref">3</span>,<span class="xref">4</span>)</sup> Given the potential severity of such an event, the Safety Working Group decided to address this potential failure mode by developing a new systems level test to demonstrate the performance of the CHSS in the specified fire conditions. Test conditions for the proposed test are based on information derived from actual vehicle fire tests that were conducted both by the Japanese Automobile Research Institute (JARI) and US automobile manufacturers, and the test set-up is loosely based on preliminary work done by Transport Canada and the National Highway Traffic Safety Administration (NHTSA) in the US. The new test method provides the opportunity to verify localized fire resistance of the CHSS and is expected to be published in the next revision of SAE J2579 in 2011.</div><div class="htmlview paragraph">Concurrent with SAE efforts, the United Nations Economic Commission for Europe (ECE) is developing a Global Technical Regulation (GTR) for FCVs. The published SAE standards are being considered along with ISO and other regional standards as the basis for possible requirements. As technical issues are identified at the GTR meetings, these issues are discussed at the SAE Safety Working Group meetings to see if there are opportunities for improvement of SAE documents to ensure that SAE standards remain relevant during this period of rapid technical growth and initial commercialization.</div></div>
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| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,002 | 0,002 |
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| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,001 | 0,001 |
| Communication savante | 0,000 | 0,001 |
| Science ouverte | 0,001 | 0,000 |
| Intégrité de la recherche | 0,001 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
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