| Issue |
E3S Web Conf.
Volume 198, 2020
2020 10th Chinese Geosynthetics Conference & International Symposium on Civil Engineering and Geosynthetics (ISCEG 2020)
|
|
|---|---|---|
| Article Number | 03010 | |
| Number of page(s) | 5 | |
| Section | Exploration and Innovation of Construction Engineering Technology | |
| DOI | https://doi.org/10.1051/e3sconf/202019803010 | |
| Published online | 26 October 2020 | |
Study and Numerical Simulation on Explosion Propagation Characteristics of Lignite Dust
1 College of Safety Science and Engineering, Nanjing Tech University, China
2 College of Safety Science and Engineering, Nanjing Tech University, China
a pangzizheng1996@163.com
* b Corresponding author: 2934399475@qq.com
In order to reveal the explosion propagation law of lignite dust in 20L spherical explosion test device, the dust diffusion behavior and explosion propagation characteristics of lignite were studied by experiment and numerical simulation. The propagation process of dust explosion is studied by using high-speed camera and 20L spherical explosion test system, and the process of dust diffusion and explosion is simulated by using FLUENT software. The results show that the explosion propagation of lignite dust in the 20L spherical explosion test system has four different stages: the first explosion stage, the full explosion combustion stage, the continuous combustion stage and the combustion attenuation stage. The test results are slightly different from that of the fluent simulation of lignite dust explosion by using the high-speed camera to collect the dust explosion images. Results within the allowable error range, the experimental image of explosion combustion of lignite dust is well connected with the simulation results, which has a good display effect on the explosion propagation of lignite dust.
© The Authors, published by EDP Sciences 2020
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