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http://dx.doi.org/10.9711/KTAJ.2022.24.6.659

Development of FCEV accident scenario and analysis study on dangerous distance in road tunnel  

Lee, Hu-Yeong (Dept. of ICT Mechanical Engineering, Shinhan University Graduate School)
Ryu, Ji-Oh (Dept. of Mechanical and Automotive Engineering. Shinhan University)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.24, no.6, 2022 , pp. 659-677 More about this Journal
Abstract
Hydrogen is emerging as a next-generation energy source and development and supply of FCEV (hydrogen fuel cell electric vehicle) is expected to occur rapidly. Accordingly, measures to respond to hydrogen car accidents are required and researches on the safety of hydrogen cars are being actively conducted. In this study, In this study, we developed a hydrogen car accident scenarios suitable for domestic conditions for the safety evaluation of hydrogen car in road tunnels through analysis of existing experiments and research data and analyzed and presented the hazard distance according to the accident results of the hydrogen car accident scenarios. The accident results according to the hydrogen car accident scenario were classified into minor accidents, general fires, jet flames and explosions. The probability of occurrence of each accident results are predicted to be 93.06%, 1.83%, 2.25%, and 2.31%. In the case of applying the hydrogen tank specifications of FCEV developed in Korea, the hazard distance for explosion pressure (based on 16.5 kPa) is about 17.6 m, about 6 m for jet fire, up to 35 m for fireball in road tunnel with a standard cross section (72 m2).
Keywords
FCEV accident scenario; Jet flame; Fireball; Hydrogen explosion; Hazard distance;
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Times Cited By KSCI : 5  (Citation Analysis)
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