Explosion overpressure field of natural gas in a large-scaled confined vessel

FAN Baolong; BAI Chunhua; WANG Bo; GAO Kanghua; LI Bin

doi:10.11883/bzycj-2016-0191

Volume 38 Issue 2

Jan. 2018

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Article Navigation > Explosion And Shock Waves > 2018 > 38(2): 404-408

FAN Baolong, BAI Chunhua, WANG Bo, GAO Kanghua, LI Bin. Explosion overpressure field of natural gas in a large-scaled confined vessel[J]. Explosion And Shock Waves, 2018, 38(2): 404-408. doi: 10.11883/bzycj-2016-0191

Citation:

FAN Baolong, BAI Chunhua, WANG Bo, GAO Kanghua, LI Bin. Explosion overpressure field of natural gas in a large-scaled confined vessel[J]. Explosion And Shock Waves, 2018, 38(2): 404-408. doi: 10.11883/bzycj-2016-0191

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Explosion overpressure field of natural gas in a large-scaled confined vessel

doi: 10.11883/bzycj-2016-0191

FAN Baolong^{1, 2},
BAI Chunhua²,
WANG Bo²,
GAO Kanghua³,
LI Bin^{2, 4
,
,}

1.
North Blasting Technology Co. Ltd., Beijing, 100089, China
2.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
3.
State Key Laboratory for Explosion & Impact and Disaster Prevention & Mitigation, The Army Engineering University of PLA, Nanjing 210007, Jiangsu, China
4.
School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

Received Date: 2016-06-29
Rev Recd Date: 2017-03-17
Publish Date: 2018-03-25

Abstract

Abstract

Focusing on the state of explosion overpressure field, a number of pressure transducers were installed in the axial and radial directions in the large-scale space. The explosion overpressure fields at different volume fractions of natural gas were recorded. When the volume fraction of natural gas was close to the lower limit of expolsion, three types of pressure curves existed. Former shock wave generated at the beginning of the explosion process was found as well with the further combustion wave. The developments in the axial and radial directions were found different obviously. Different from the instability of pressure in the radial direction, the overpressure development in the axial direction was more suitable to describe the whole developing process of overpressure.
- large-scaled,
- confined vessel,
- natural gas,
- explosion,
- overpressure

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References(11)

References

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