Influence of structural parameters on formation characteristics of 125 kg FAE clouds

WANG Ye; BAI Chunhua; LIU Wenjie

doi:10.11883/bzycj-2024-0121

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WANG Ye, BAI Chunhua, LIU Wenjie. Influence of structural parameters on formation characteristics of 125 kg FAE clouds[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2024-0121

Citation:

WANG Ye, BAI Chunhua, LIU Wenjie. Influence of structural parameters on formation characteristics of 125 kg FAE clouds[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2024-0121

WANG Ye, BAI Chunhua, LIU Wenjie. Influence of structural parameters on formation characteristics of 125 kg FAE clouds[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2024-0121

Citation:

WANG Ye, BAI Chunhua, LIU Wenjie. Influence of structural parameters on formation characteristics of 125 kg FAE clouds[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2024-0121

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Influence of structural parameters on formation characteristics of 125 kg FAE clouds

doi: 10.11883/bzycj-2024-0121

1.
Graduate Department, North China Institute of Science and Technology, Yanjiao 065201, Hebei, China
2.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
3.
School of Environmental and Safety Engineering, North University of China, Taiyuan 030051, Shanxi, China

Received Date: 2024-04-30
Rev Recd Date: 2024-12-17

Available Online: 2024-12-17

Abstract

Abstract

The large-scale explosive dispersal and the unconfined detonation of particle-spray-air ternary mixtures are closely related to industrial accidents and military applications. However, most of the existing research focuses on the small-scale experiment in the laboratory. The large-scale explosive dispersal experiment is rare. According to most of the research findings, the explosive power was determined by the detonation state of aerosol. The charge and specific central explosive were the main factors affecting the shape of the aerosol. To study the damaging effect of aerosol, the large-scale dispersed experiment of 125 kg fuel was carried out. The process of aerosol development was observed by high-speed video recording. Variation characteristics of FAE cloud with different canisters and the specific central explosive were studied. The aerosol diameter and height were used to describing the aerosol shape, then they were analyzed under different initial experiment conditions. There were three types of designing canisters, including basic canister, compound canister and strengthen canister. And the main difference between those types of canisters was the radial restraint. The specific quantities of buster charge was adopted the T-shaped charge. The results show that the aerosol formation is reliable through the replication experiments. Because of its strong radial restraint, the compound canister has the advantage in the aerosol diameters. The aerosol diameters of compound canister can reach 25.5 m, compared to strong canister coverage area increased by 13%. Therefore, the compound canister with the specific quantities of buster charge of 0.8% has the best aerosol performance for 125 kg fuel. On this basis, characteristics of the aerosol were further analyzed. Thus the optimal secondary detonation delay time is 240 ms. The aerosol calculating concentration before burst is 64 g/m³ and the chemical equivalent ratio of fuel to oxygen in the air is 0.54.
- FAE cloud formation,
- explosion dispersed,
- structural,
- quantities of buster charge

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References(17)

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