A closer look at BLEVE overpressure

Laboureur, Delphine; Birk, A. M.; Buchlin, Jean‐Marie; Rambaud, Patrick; Aprin, Laurent; Heymes, Frédéric; Osmont, Antoine

doi:10.1016/j.psep.2015.03.004

Cited by 43 publications

(22 citation statements)

References 15 publications

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“…It corresponds to 1.2D vessel to 1.8D vessel . These orders of magnitude are smaller than the R s0 = 2.5D vessel estimated by Laboureur (Laboureur et al, 2015).…”

Section: Experimental Determination Of the Shock Start Positionmentioning

confidence: 60%

“…However, this point of view is not shared unanimously. Indeed, both Birk (Birk et al, 2007) and Laboureur (Laboureur et al, 2015) presented overpressure signals with 3 peaks of overpressure as a characteristic pressure signal from a BLEVE. Both assume that the two first peaks originate from the vapor space and hypothesize that the last peak, which is less sharp but potentially longer lasting, could originate from boiling liquid (see Fig.…”

Section: New Predictive Model: the Shock Start Modelmentioning

confidence: 99%

“…The assumption of far-field decay based on Eq. (1) is made here, considering n = 1.12 (Laboureur et al, 2015). dP is the overpressure prediction, dP s0 the overpressure at the fullyformed state, R s0 the distance from the tube at which the shock is fully-formed and R is the vertical distance from tube wall upward.…”

Section: Theory Of Shock Startmentioning

confidence: 99%

“…This model shows that the vapor generates a shock while the velocity of the boiling wave through the liquid restricts shock formation due to liquid expansion. Finally, the prediction model of Laboureur (Laboureur et al, 2015) introduced the non-ideal opening of a vessel into the prediction. This model estimated the starting shock position and overpressure and extrapolated it through distance with hemispherical decay.…”

Section: Introductionmentioning

confidence: 99%

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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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“…It corresponds to 1.2D vessel to 1.8D vessel . These orders of magnitude are smaller than the R s0 = 2.5D vessel estimated by Laboureur (Laboureur et al, 2015).…”

Section: Experimental Determination Of the Shock Start Positionmentioning

confidence: 60%

Section: New Predictive Model: the Shock Start Modelmentioning

confidence: 99%

Section: Theory Of Shock Startmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Near-field BLEVE overpressure effects: The shock start model

Birk

Heymes

Eyssette

et al. 2018

Process Safety and Environmental Protection

Self Cite

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“…The blast does not reach as far as thermal radiation and fragment effects. In addition, the production of the overpressure is still not well understood and so accurate models aimed at an assessment of the overpressure are under development until now (Laboureur et al 2015).…”

Section: Probabilities Of Damage From a Blevementioning

confidence: 99%

The Risk to Structures Built Near Roads and Rails Used for Moving Hazardous Materials

Vaidogas

Kisežauskienė

Girnienė

2016

Journal of Civil Engineering and Management

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An assessment of parts of transportation infrastructure in terms of hazards to roadside territory is considered. It is suggested to assess individual segments of road and railway network by estimating risks posed by potential fires and explosions on road and rail. Boiling liquid expanding vapour explosion of tanker trucks and tank cars is identified as the most hazardous and likely high consequence accident in the land transport. It is proposed to express the risk to built roadside objects by means of an annual damage frequency. This frequency is considered to be a specific physical characteristic of the road or railway segment under analysis. It is shown that estimating the damage frequency requires assessing effects of a potential explosion on road or rail and developing a fragility function for the roadside object analysed as a potential target. An example case study is presented. It considers a potential thermal damage to a reservoir (stationary tank) built in the vicinity of a highway. The damage can be caused by an explosion of a propane tanker truck. Results of the risk assessment are expressed in terms of probabilities of specific damage events.

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BLEVE‐Fireball

Planas

Casal

2016

Handbook of Combustion

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The BLEVE (boiling liquid expanding vapor explosion) can occur with almost any liquid contained in a closed vessel, at a temperature well above its boiling point at atmospheric pressure. If the vessel fails, the vapor will expand and the superheated liquid will undergo a quick flash vaporization; the associated sudden increase in volume will originate an overpressure wave, that is, an explosion. This explosion can occur with any liquid, be it flammable or not, but if flammable then it will be followed by a fireball. The couple BLEVE‐fireball can occur both in fixed plants and in transportation by rail or road. Knowledge of this type of accident has improved significantly during past decades, and measures to reduce its risk have consequently improved. Nevertheless, it still occurs from time to time and its consequences can still be very severe. In this chapter, a description of this phenomenon is provided, together with a review of the diverse methods employed to evaluate the mechanical, thermal and fragment rocket effects associated with this accident. Some recommendations concerning the management of these types of emergency are also provided.

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A closer look at BLEVE overpressure

Cited by 43 publications

References 15 publications

Near-field BLEVE overpressure effects: The shock start model

Near-field BLEVE overpressure effects: The shock start model

The Risk to Structures Built Near Roads and Rails Used for Moving Hazardous Materials

BLEVE‐Fireball

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