Risk Assessment of Liquefied Petroleum Gas Explosion in a Limited Space.
Risk Assessment of Liquefied Petroleum Gas Explosion in a Limited Space.
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DOI：
10.1021/acsomega.1c03430
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发表时间：
2021-09-28
期刊：
影响因子：
4.1
通讯作者：
Deng J
中科院分区：
文献类型：
--
作者：
Liang H;Wang T;Luo Z;Wang X;Kang X;Deng J
近年来，液化石油气（LPG）爆炸事故造成了巨大的损失。为了分析液化石油气（LPG）的爆燃危险性，采用数值方法研究了在初始压力和温度升高的情况下，LPG-空气预混物在封闭管道中的爆炸压力和火焰传播特性。结果表明，随着初始温度的升高，最高爆炸压力和爆炸诱导期减小，最高火焰温度升高。随着初始温度的升高，郁金香火焰的形成速度加快，同时火焰前缘的凹陷程度也增大。提高的初始压力提高了最高爆炸压力和最高火焰温度。然而，当初始压力超过0.5MPa时，其对火焰温度的影响缓慢减小。此外，灰色关联分析方法被用来评估初始条件和导出的参数之间的相关性。结果表明，初始压力对四个爆炸参数的影响最大。研究结果对于揭示液化石油气在复杂工况下的爆燃危险性特征，评价相关工序和装置的爆炸危险性，制定科学有效的防爆措施具有重要意义。
In recent years, the explosion accidents of liquefied petroleum gas (LPG) have induced tremendous losses. To analyze the deflagration danger of LPG, the explosion pressure and flame propagation features of the premixed LPG–air mixture in a closed pipeline at increased initial pressures and temperatures were examined by the numerical method. It has been shown that with an increase in the initial temperature, the highest explosion pressure and explosion induction period decrease, while the maximum flame temperature increases. As the initial temperature rises, the formation of the tulip flame accelerates, and the depression of the flame front increases at the same time. The elevated initial pressure raises the highest explosion pressure and the maximum flame temperature. Nevertheless, when the initial pressure exceeds 0.5 MPa, its impact on the flame temperature slowly diminishes. In addition, the gray relational analysis approach was utilized to evaluate the correlation between the initial condition and the derived parameters. The findings indicate that the initial pressure exerts the largest influence on the four explosion parameters. The research finding is important for exposing the deflagration risk features of LPG under complicated working situations, evaluating the explosion risk of correlated procedures and devices, and formulating scientific and effective explosion-proof measures.
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影响因子：
13.6
作者：
Di Sarli, Valeria;Di Benedetto, Almerinda;Russo, Gennaro
通讯作者：
Russo, Gennaro
DOI：
10.1016/j.jlp.2021.104493
发表时间：
2021-05-03
影响因子：
3.5
作者：
Heilbronn, Daniel;Barfuss, Christoph;Sattelmayer, Thomas
通讯作者：
Sattelmayer, Thomas
影响因子：
6.4
作者：
Huo, Y.;Chow, W. K.
通讯作者：
Chow, W. K.
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影响因子：
7.2
作者：
Jing, Qi;Huang, Jinxiang;Liu, Changqi
通讯作者：
Liu, Changqi
内置障碍物氢气云爆炸的实验与理论评估
影响因子：
7.2
作者：
Li, Yanchao;Bi, Mingshu;Gao, Wei
通讯作者：
Gao, Wei