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Communication Dans Un Congrès Année : 2024

Near-field Aerial Overpressure and Impulse from Small-scale BLEVE

Résumé

This paper presents an investigation into one of the most damaging hazards associated with Boiling Liquid Expanding Vapor Explosion (BLEVE), specifically focusing on the near-field overpressure and impulse effects. Experiments were conducted at a small-scale to study the overpressure and impulse using aluminum tubes with a diameter of 50 mm and a length of 300 mm. The tubes were filled with pure propane liquid and vapor. The controlled variables, on this work included the failure pressure, the liquid fill level, and the weakened length along the tube top. These variables control the strength of the overpressure that is characterized by the peak overpressure amplitude, duration of this overpressure event and the resultant impulse. Notably, these experiments at a small scale included experiments with 100 % liquid fill level. This provided further confirmation that the vapor space is the main driver of the lead overpressure hazard. High speed cameras and blast gauges effectively illustrated the progressive formation of the shock wave in both temporal and spatial dimensions. Furthermore, various predictive models available in the literature are discussed in this paper and new correlations were developed to quantify the overpressure duration and impulse. The current analysis aims to predict the potential consequence of overpressure events during a BLEVE.
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  • HAL Id : hal-04615483 , version 1

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El Mehdi Laamarti, A M Birk, Frederic Heymes. Near-field Aerial Overpressure and Impulse from Small-scale BLEVE. ISHPMIE 2024 - 15th International Symposium on Hazards, Prevention and Mitigation of Industrial Explosions, Jun 2024, Naples, Italy. ⟨hal-04615483⟩
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