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首页> 外文会议>International Conference on Sustainable Energy, Environment and Information Engineering >Computational Fluid Dynamics Simulations of Hydrogen Jet Fires inside a Tunnel
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Computational Fluid Dynamics Simulations of Hydrogen Jet Fires inside a Tunnel

机译：隧道内氢气喷射的计算流体动力学模拟

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Compared with the hydrogen jet fire from a pressure vessel in an open space, the hydrogen jet fire inside a tunnel has a different kind of risk because of the semi-enclosed space. In this study, computational fluid dynamics (CFD) simulations of the hydrogen jet fire from a hydrogen transport vehicle inside a tunnel were carried out. Several different factors, such as hydrogen leakage rate, leakage area, longitudinal ventilation, transverse ventilation and the volume of the tunnel, were considered to analyze the influence on the temperature and diffusion of hydrogen inside the tunnel during the jet fire. The results show that compared with an open space, the hazards of the hydrogen jet fire inside a tunnel lie in not only high temperature but also the accumulation of hydrogen, which may pose a secondary disaster inside the tunnel. In order to control the hazard and avoid a secondary disaster after the hydrogen jet fire happened, enough longitudinal and transverse ventilation is necessary inside the tunnel.
机译：与开放空间中的压力容器中的氢气喷射器相比，由于半封闭空间，隧道内的氢气喷射射击具有不同的风险。在本研究中，进行了从隧道内氢气输送车辆的氢气喷射的计算流体动力学（CFD）模拟。考虑了几种不同因素，例如漏速，泄漏面积，纵向通风，横向通风和隧道的体积，分析喷射火灾期间隧道内氢气温度和扩散的影响。结果表明，与开放空间相比，隧道内的氢气火灾的危害不仅高温，而且氢气的积累也可能在隧道内部造成次要灾难。为了控制危险并避免氢气喷射发生后的二次灾害发生，在隧道内需要足够的纵向和横向通风。

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