Flame temperatures of PMMA dust clouds with different particle size distributions

GAN Bo; GAO Wei; ZHANG Xinyan; JIANG Haipeng; BI Mingshu

doi:10.11883/bzycj-2017-0244

Volume 39 Issue 1

Oct. 2018

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GAN Bo, GAO Wei, ZHANG Xinyan, JIANG Haipeng, BI Mingshu. Flame temperatures of PMMA dust clouds with different particle size distributions[J]. Explosion And Shock Waves, 2019, 39(1): 015401. doi: 10.11883/bzycj-2017-0244

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GAN Bo, GAO Wei, ZHANG Xinyan, JIANG Haipeng, BI Mingshu. Flame temperatures of PMMA dust clouds with different particle size distributions[J]. Explosion And Shock Waves, 2019, 39(1): 015401. doi: 10.11883/bzycj-2017-0244

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Flame temperatures of PMMA dust clouds with different particle size distributions

doi: 10.11883/bzycj-2017-0244

GAN Bo¹,
GAO Wei^{1
,
,},
ZHANG Xinyan^{1, 2},
JIANG Haipeng¹,
BI Mingshu¹

1.
School of Chemical Machinery and Safety Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
2.
School of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 271019, Shandong, China

Received Date: 2017-07-10
Rev Recd Date: 2017-10-02
Publish Date: 2019-01-05

Abstract

Abstract

In the present study, to find out about the effects of particle size distributions on the flame temperatures of polymethyl methacrylate (PMMA) dust clouds, we measured the flame temperatures of PMMA dust clouds with different particle size distributions using the thermocouple and high-speed colorimetric method. The results show that, due to the faster pyrolysis/volatilization rate of 100 nm dust particle, the temperature was able to reach 1 551℃ while the maximum temperature of 30 μm dust cloud was only 1 108℃. The maximum flame temperature and high temperature flame area increased and then decreased with the increase of PMMA dust particle size for micron-scale. The pyrolysis/volatilization time scale of 20 μm dust particles was close to the combustion reaction time scale because of their good dispersibility. As a result, the maximum temperature and high temperature flame area were the largest among the particles with different particle size distributions.
- PMMA,
- dust explosion,
- particle size distribution,
- flame temperature

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References(20)

References

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