Evaluation of the blast-wave overpressure and fragments initial velocity for a BLEVE event via empirical correlations derived by a simplified model of released energy

Genova, B.; Silvestrini, Marina; Trujillo, F.J. Leon

doi:10.1016/j.jlp.2007.11.004

Cited by 36 publications

(15 citation statements)

References 8 publications

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“…The expansion work devoted to blast-wave generation can be determined either with the method of Casal and Salla (2006) or by means of empirical correlations such as that for propane proposed by Genova et al (2008):…”

Section: Application Of the Ecf Methods To Bleve In Road Tunnelsmentioning

confidence: 99%

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Energy concentration factor. A simple concept for the prediction of blast propagation in partially confined geometries

Silvestrini¹,

Genova²,

Trujillo

2009

Journal of Loss Prevention in the Process Industries

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Section: Application Of the Ecf Methods To Bleve In Road Tunnelsmentioning

confidence: 99%

“…Also the peak intensity of a BLEVE blast-wave in free field has recently been better defined (Casal & Salla, 2006;Genova, Silvestrini, & Leon Trujillo, 2008).…”

Section: Introductionmentioning

confidence: 99%

Energy concentration factor. A simple concept for the prediction of blast propagation in partially confined geometries

Silvestrini¹,

Genova²,

Trujillo

2009

Journal of Loss Prevention in the Process Industries

Self Cite

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“…Wu and Hao [13] built a 3D model to simulate the effects of an explosion on neighboring structures, considering the ground vibration and air blast wave at the same time. Casal and Salla [14] and Genova et al [15] also defined the peak intensity of the boiling liquid expanding vapour explosion (BLEVE) blast wave in a free field.…”

Section: Introductionmentioning

confidence: 99%

Field Tests on the Attenuation Characteristics of the Blast Air Waves in a Long Road Tunnel: A Case Study

Fang

Yilun

Zhou

et al. 2019

Shock and Vibration

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After an explosion occurs in a tunnel, the blast waves take on diverse forms of attenuation in different regions when it propagates along the tunnel. However, the prediction of the overpressure decay laws proposed in previous studies has not taken into account the influence of the different regions in the tunnel. The present paper uses the example of the Micangshan highway tunnel in China and considers many factors that influence the propagation of the blast waves by dividing the tunnel into four zones. The paper modifies the decay equation proposed by Smith and applies it to the Micangshan highway tunnel in China. The decay equations are different in different zones. Field tests in this tunnel show that the modified equation is more suitable to describe the attenuation of the blast waves in the tunnel than the original equation.

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“…It involves the calculation of the energy contained in the vessel and released in the blast. Several models are available that consider either the isentropic expansion energy (Prugh, 1991), or irreversible expansion energy (Planas-Cuchi et al, 2004), or the excess superheat energy (Casal and Salla, 2006;Genova et al, 2008). This TNT-approach is easy to implement and well validated for far-field overpressure prediction.…”

Section: Introductionmentioning

confidence: 99%

Near-field BLEVE overpressure effects: The shock start model

Birk

Heymes

Eyssette

et al. 2018

Process Safety and Environmental Protection

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This paper presents the results of a small scale experimental study of BLEVE overpressure effects. Testing consisted of a sealed aluminum tube (0.6 L) filled with either water or propane, being heated by a flame until the internal pressure led to catastrophic failure and explosion. Three parameters were controlled during the experiments: the failing pressure, the weakened length on the tube and the fill level. BLEVEs were obtained with tests involving water and propane. Blast gages and optical techniques were used to characterize the shock wave escaping from the failing tube. The results obtained suggest that the lead shock was primarily generated by the vapor space. Overpressure results obtained were compared with the predictions of existing models and found to be in reasonable agreement except for overpressures measured vertically above the cylinder where the overpressures were highest. A prediction model based on only vapor space characteristics was developed. Images show that the shock was fully formed at some distance away from the vessel opening and this was due to the non-ideal opening of the vessel. The model developed was based on the characteristics of the shock when fully formed away from the tube. These characteristics were defined using a combination of imaging, pressure measurements, and predictions from shock tube theory.

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Evaluation of the blast-wave overpressure and fragments initial velocity for a BLEVE event via empirical correlations derived by a simplified model of released energy

Cited by 36 publications

References 8 publications

Energy concentration factor. A simple concept for the prediction of blast propagation in partially confined geometries

Energy concentration factor. A simple concept for the prediction of blast propagation in partially confined geometries

Field Tests on the Attenuation Characteristics of the Blast Air Waves in a Long Road Tunnel: A Case Study

Near-field BLEVE overpressure effects: The shock start model

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