Fire Protection Performance of Nanocoating on a LPG Tank under Fire Based on the Wavelet Finite-Element Method

Fire Protection Performance of Nanocoating on a LPG Tank under Fire Based on the Wavelet Finite-Element Method
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基于小波有限元法的液化石油气储罐纳米涂层火灾防护性能

DOI:
10.1061/(asce)nm.2153-5477.0000093
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发表时间:
2015-06
期刊:
Journal of Nanomechanics and Micromechanics
影响因子:
--
通讯作者:
赵斌
赵斌
中科院分区:
其他
文献类型:
--
作者:
赵斌

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摘要为了研究纳米涂层对液化石油气储罐在火灾下的防火效果,采用小波有限元法分析了无涂层、涂层和纳米涂层的液化石油气储罐的热应力、温度和压力分布规律。首先,分别对纳米涂层和小波有限元法的相关研究进行了研究,分析了本研究的可行性。其次,建立了纳米涂层防火性能分析的理论模型,分别建立了小波分析的性质、温度场模型和湍流模型。最后进行了数值模拟,得到了热应力、温度和压力的分布规律。模拟结果表明,纳米涂层LPG具有较好的隔热性能,可以作为一种被动防火系统,与雨水灭火系统配合使用,降低液化石油气储罐在低温下的爆炸危险性。
AbstractTo study the fire protection effect of the nanocoating on the liquefied petroleum gas (LPG) tank under fire, the wavelet finite-element method is applied in analyzing the thermal stress, temperature, and pressures distribution laws of uncoated, coated, and nanocoated LPG tanks. First, the relating research on nanocoating and the wavelet finite-element method is studied, respectively, and the feasibility of this research is analyzed. Second, the theoretical model of fire protection analysis of nanocoating is established, and the property of wavelet analysis, temperature field model, and turbulent flow model are constructed, respectively. Finally, the simulation is carried out, and the distribution laws of thermal stress, temperature, and pressure are obtained. Simulation results show that the nanocoated LPG has better heat insulation character, and it can be used as a passive fireproof system that can cooperate with rain fire extinguishing systems to reduce the explosion hazard of a LPG tank under ...
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