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Full-scale tunnel experiments for hydrogen fuel cell vehicles: gas dispersion

Abstract : Presentation of results dedicated to gas release and dispersion conducted in HYTUNNEL project In the framework of the HYTUNNEL-CS European project sponsored by FCH-JU, a set of preliminary tests were conducted in a real tunnel in France. These tests are devoted to safety of hydrogen-fueled vehicles having a compressed gas storage and Temperature Pressure Release Device (TPRD). The goal of the study is to develop recommendations for Regulations, Codes and Standards (RCS) for inherently safer use of hydrogen vehicles in enclosed transportation systems. In these preliminary tests, the helium gas has been employed instead of hydrogen. Upward and downward gas releases following by TPRD activation, has been considered. The experimental data describing local behavior (close to jet or below the chassis) as well as global behavior at the tunnel scale are obtained. These experimental data are systematically compared to existing engineering correlations. The results will be used for benchmarking studies using CFD codes. The hydrogen pressure range in these preliminary tests has been lowered down to 20MPa in order to verify the capability of various large-scale measurement techniques before scaling up to 70MPa, the subject of the second campaign.
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https://hal-cea.archives-ouvertes.fr/cea-03777096
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Submitted on : Wednesday, September 14, 2022 - 12:30:48 PM
Last modification on : Friday, September 16, 2022 - 3:27:42 AM

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  • HAL Id : cea-03777096, version 1

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Didier Bouix, François Sauzedde, Philippe Manicardi, Maximilien Martin, Diana Forero, et al.. Full-scale tunnel experiments for hydrogen fuel cell vehicles: gas dispersion. ICHS - INTERNATIONAL CONFERENCE ON HYDROGEN SAFETY 2021, Sep 2021, Edimbourg, United Kingdom. ⟨cea-03777096⟩

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