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Jet Flame Risk Analysis for Safe Response to Hydrogen Vehicle Accidents

Author

Listed:
  • Byoungjik Park

    (Hydrogen-Infrastructure Research Cluster, Korea Institute of Civil Engineering and Building Technology, Goyang-si 18544, Gyeonggi-do, Republic of Korea)

  • Yangkyun Kim

    (Hydrogen-Infrastructure Research Cluster, Korea Institute of Civil Engineering and Building Technology, Goyang-si 18544, Gyeonggi-do, Republic of Korea)

  • Jin Ouk Park

    (Hydrogen-Infrastructure Research Cluster, Korea Institute of Civil Engineering and Building Technology, Goyang-si 18544, Gyeonggi-do, Republic of Korea)

  • Ohk Kun Lim

    (Department of Police Science, Dong-A University, Busan-si 49236, Republic of Korea)

Abstract

With an increase in the use of eco-friendly vehicles such as hybrid, electric, and hydrogen vehicles in response to the global climate crisis, accidents related to these vehicles have also increased. Numerical analysis was performed to optimize the safety of first responders responding to hydrogen vehicle accidents wherein hydrogen jet flames occur. The influence range of the jet flame generated through a 1.8-mm-diameter nozzle was analyzed based on five discharge angles (90, 75, 60, 45, and 30°) between the road surface and the downward vertical. As the discharge angle decreases toward the road surface, the risk area that could cause damage moves from the center of the vehicle to the rear; at a discharge angle of 90°, the range above 9.5 kW/m 2 was 1.59 m and 4.09 m to the front and rear of the vehicle, respectively. However, at a discharge angle of 30°, it was not generated at the front but was 10.39 m to the rear. In response to a hydrogen vehicle accident, first responders should perform rescue activities approaching from a diagonal direction to the vehicle front to minimize injury risk. This study can be used in future hydrogen vehicle design to develop the response strategy of the first responders.

Suggested Citation

  • Byoungjik Park & Yangkyun Kim & Jin Ouk Park & Ohk Kun Lim, 2023. "Jet Flame Risk Analysis for Safe Response to Hydrogen Vehicle Accidents," Sustainability, MDPI, vol. 15(13), pages 1-13, June.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:13:p:9884-:d:1176126
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    References listed on IDEAS

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    3. Chi Wing To & Wan Ki Chow & Fang Ming Cheng, 2021. "Simulation of Possible Fire and Explosion Hazards of Clean Fuel Vehicles in Garages," Sustainability, MDPI, vol. 13(22), pages 1-15, November.
    4. Ossi Heino & Joanna Kalalahti, 2021. "Securing Operational Capability for Exceptional Circumstances: How Do Professional First Responders Respond to the Unexpected?," Sustainability, MDPI, vol. 13(11), pages 1-15, June.
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