CFD Analysis of Fire Testing of Automotive Hydrogen Gas Cylinders with Substitutive Gases FC/EV Center, Japan Automobile Research Institute

Format:

Conference/Event

Author/Creator:

Tamura, Yohsuke, author.

Conference Name:

SAE 2005 World Congress & Exhibition (2005-04-11 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2005

Summary:

To investigate methods of conducting flame exposure tests (bonfire tests) on high-pressure hydrogen gas cylinders that are safe and have high accuracy across repeated tests, we used numerical simulation and experiments to analyze the feasibility of using substitutive gases for filling as well as the effects of the burners used as the fire source. Through a series of virtual experiments using substitutive gases, flame scales, and filling pressure as parameters, we examined the maximum internal pressure, the rate of pressure rise, and the starting time of Pressure Relief Device (PRD) activation.Because substitutive gas properties differ from those of hydrogen gas, we concluded that using substitutive gases would be inappropriate. In addition, we observed that when the flame scale was small, the cylinder's internal pressure before the thermal-activated PRD activation, the rate of pressure rise, and the starting time of PRD activation all increased rapidly. Therefore, it is necessary to either maintain a constant value for the fire source's fuel flow rate, or increase the flame scale, in order to reduce the variance between repeated tests

Notes:

Vendor supplied data

Publisher Number:

2005-01-1887

Access Restriction:

Restricted for use by site license