Boiling Liquid Expanding Vapour Explosion (BLEVE) of Peroxy-fuels: Experiments and Computational Fluid Dynamics (CFD) Simulation

Mishra, Kirti Bhushan; Wehrstedt, Klaus‐Dieter; Krebs, Holger

doi:10.1016/j.egypro.2015.02.082

Cited by 17 publications

(3 citation statements)

References 14 publications

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“…Methane gas, in addition to its explosive nature, is itself an asphyxiating gas that indoors can lead to a sharp decrease in oxygen concentration but in the case of the explosion phenomenon the dynamic effect is more important, an effect that also occurs in the case of production explosions in semi-closed and open spaces. The topic of gas dispersion has been studied extensively internationally [4][5][6][7][8][9][10][11]. However, in particular, the dispersion dynamics of methane-type explosive gases in closed enclosures has been less studied but can be analyzed mathematically using fluid dynamics or by experiments [12][13][14][15][16][17][18].…”

Section: Description Of the Problemmentioning

confidence: 99%

Dyspersja metanu w zamkniętych obudowach

Doru,

Nicolae,

Corneliu

et al. 2024

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The increase of the population also involve the increase of the consumption of raw materials. This requires the diversification and development of industrial processes in semi-enclosed or open spaces. The carrying out of human activities of an industrial nature involves the accidental use, handling or presence of explosive substances such as methane. The presence of this gas in closed or semi-closed spaces can generate explosion phenomena. The accumulation of methane in narrow spaces is well studied and known, but the dispersion and especially the dispersion dynamics of methane released from a source considered infinite is less known. Knowing how methane disperses into the air is very important for establishing preventive measures. The paper presents the experiment on the dynamics of methane dispersion in a closed enclosure.

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Section: Description Of the Problemmentioning

confidence: 99%

Dyspersja metanu w zamkniętych obudowach

Doru,

Nicolae,

Corneliu

et al. 2024

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“…Therefore, determining the measures for causes and consequences on time is significantly important. 15,16 Analysis of causes of explosive accidents in chemical plants is one of the most critical steps to increase the level of safety in existing units or in the design stage of processes. In recent years, studies were completed not only to prevent the occurrence of explosive accidents in chemical industries, but also to decrease their severity and so most prevention and control can be carried out for possible scenarios of explosive accidents with lowest cost.…”

Section: Scenario 3: Lpg Tank Explodes and Liquid Gas Is Burnt As A Fireball (Bleve)mentioning

confidence: 99%

Modeling the consequences of gas leakage and explosion fire in liquefied petroleum gas storage tank in Istanbul technical university, Maslak campus

Terzioglu

Iskender

2021

Process Safety Progress

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One of the substances with high potential to cause damage that is used widely in chemical plants is liquefied petroleum gas (LPG). The aim of the present study is to model the consequences of leakage from a storage tank containing LPG using different scenarios. ALOHA software was used as one of the best modeling programs for identification of emergency responses required at the time of the gas leakage based on modeling results. According to ALOHA program modeling results, the area called TEEL-3 was located within a distance of 187 m from the tank, and the threat to people in this area was determined. In case of LPG leakage from the storage tank, the concentration of LPG was about 2100 ppm which is equal to the lower explosive limit at the distance of 187 m. The consequences of combustion and explosion of LPG gas at a distance of 65 m from the storage tank were the most serious danger that threatens humans. This paper has an important role in modeling the harmful effects of the release of LPG and hazardous substances in different scenarios.

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“…Firstly, the temporal and spatial distribution of cloud and its stability were explored through cloud experiments. Then the CFD simulations and experiments were combined to characterize the temporal and spatial distribution of the cloud [15]. We analyzed the cloud diffusion characteristics and establish a cloud top height model.…”

Section: Introductionmentioning

confidence: 99%

Inverting the Parameters of RDD Explosion Source Based on Temporal and Spatial Distribution of Explosion Cloud

Duan

Lin

Ya-li

et al. 2021

Propellants Explo Pyrotec

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In order to invert the explosion equivalent and cloud top height of “Radiological Dispersal Device”(RDD) by cloud distribution, we firstly analyzed the temporal and spatial distribution of the cloud uplift of explosive experiments and revealed that the height of the explosion cloud increased with time according to a power function and this relationship was of certain stability. Based on the computational fluid dynamics (CFD) simulations and experimental proof, we further characterized cloud distribution of 12 TNT explosions, analyzed the diffusion patterns and parameters change of the cloud, and established a calculation model of cloud top height and equivalent of a radiological dispersal device by fitting. Finally, a calculation model for the inversion of explosion equivalent and height based on the temporal and spatial parameters of the cloud was constructed using the generalized regression neural network (GRNN) data‐driven algorithm, and verified by six different explosion tests with different equivalent. The results showed the explosion equivalent and height could be quickly inverted by combining the high dynamic information of the explosion cloud at the visual stage with the nonlinear regression mathematical method. The average error of the inverted explosion equivalent and height were 12.3 % and 7.1 % respectively compared with the experimental ones, indicating that the calculation model can be used for off‐site rapid detection, early warning and evaluation of unknown explosion source.

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Boiling Liquid Expanding Vapour Explosion (BLEVE) of Peroxy-fuels: Experiments and Computational Fluid Dynamics (CFD) Simulation

Cited by 17 publications

References 14 publications

Dyspersja metanu w zamkniętych obudowach

Dyspersja metanu w zamkniętych obudowach

Modeling the consequences of gas leakage and explosion fire in liquefied petroleum gas storage tank in Istanbul technical university, Maslak campus

Inverting the Parameters of RDD Explosion Source Based on Temporal and Spatial Distribution of Explosion Cloud

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