Near-field BLEVE overpressure effects: The shock start model

TLDR: In this paper, the results of a small scale experimental study of BLEVE overpressure effects were presented, where three parameters were controlled during the experiments: the failing pressure, the weakened length on the tube and the fill level.

About: This article is published in Process Safety and Environmental Protection.The article was published on 2018-05-01 and is currently open access. It has received 21 citations till now. The article focuses on the topics: Shock tube & Overpressure.

Figures

Fig. 7. View ) 0.88

Fig. 14. dPST/dPs0 ratio behavior with failure pressure.

Fig. 4. Overpressure measurement: a) Case 4, top R=0.28m; b) Birk 2007, side R=10m (Laboureur et al., 2015).

Fig. 5. Direct High Speed imaging of the tube opening (4000 fps) (case 4, a) 0.25ms b) 0.5ms c) 0.75ms after start of the opening).

Fig. 6. Retroreflective shadowgraph of the early stage of a BLEVE (20000 fps) (ca

Fig. 12. Shadowgraph of the vessel opening used for shock start detection (20 000fps, resolution 752×400). The shock is starting to be visible from c) and grows stronger on d) and e).

Frequently asked questions

Q1. What are the contributions in "Near-field bleve overpressure effects: the shock start model" ?

This paper presents the results of a small scale experimental study of BLEVE overpressure effects. Pressure vessels are subject to variof aggressive conditions that can weaken them and can s lead to failure, e. g. corrosion, the impact of a projectile, re to fire ( Heymes et al., 2013 ). The case of fire engulfvessel is investigated in this study because it is the most source of BLEVEs according to the literature ( Abbasi and 007 ; Hemmatian, 2016 ). The results obtained suggest that the lead shock was primarily generated by the vapor space.