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(사)한국터널지하공간학회

ISSN : 2233-8292

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Vol.24 No.6

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

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2022, v.24 no.6, pp.659-677
https://doi.org/10.9711/KTAJ.2022.24.6.659


& (2022). Development of FCEV accident scenario and analysis study on dangerous distance in road tunnel. (사)한국터널지하공간학회, 24(6), 659-677, https://doi.org/10.9711/KTAJ.2022.24.6.659

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 35m for fireball in road tunnel with a standard cross section (72 m2).

keywords
FCEV accident scenario, Jet flame, Fireball, Hydrogen explosion, Hazard distance, 수소차 사고시나리오, 제트화염, 파이어볼, 수소차 폭발, 위험거리

(사)한국터널지하공간학회

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