File:Fse-explosion-venting-v3.svg

Fse-explosion-venting-v3.svg (SVG file, nominally 900 × 600 pixels, file size: 9 KB)

Summary

Phases of an explosion in a vented building: confined explosion, removal of the vent cover, established venting and maximum flame area. The first pressure peak occurs when the vent opens, the second when turbulence and the largest flame area drive the burning rate. Based on Iqbal and Salley (2004), p. 15-5.

Original illustration for Explosion venting, level 4 Expert.

Source basis: Iqbal and Salley (2004), p. 15-5, Figure 15-1 after Harris (1983) (redraw, do not copy) and text (second peak from turbulence created by venting); Zalosh (2002), p. 3-415 (any of several peaks can be the maximum)
Alt text: Four small sketches of a room during a vented explosion above a pressure curve with a first peak at vent opening and a higher second peak.

Licensing

New drawing by Fire Safety Academy. © Fire Safety Academy.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:47, 2 November 2026		900 × 600 (9 KB)	Jan (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Explosion venting

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Short title	Phases of an explosion in a vented building: confined explosion, removal of the vent cover, established venting and maximum flame area. The first pressure peak occurs when the vent opens, the second when turbulence and the largest flame area drive the burning rate. Based on Iqbal and Salley (2004), p. 15-5.
Image title	Four small sketches of a room during a vented explosion above a pressure curve with a first peak at vent opening and a higher second peak. Source basis: Iqbal and Salley (2004), p. 15-5, Figure 15-1 after Harris (1983) (redraw, do not copy) and text (second peak from turbulence created by venting); Zalosh (2002), p. 3-415 (any of several peaks can be the maximum)
Width	900
Height	600