File:Fse-explosion-v2.svg

Fse-explosion-v2.svg (SVG file, nominally 900 × 600 pixels, file size: 7 KB)

Summary

A BLEVE combines physical expansion with several possible hazards. Based on U.S. Nuclear Regulatory Commission (2005), pp. 5-15–5-16 and Zalosh (2002), p. 3-420.

Diagram for the article Explosion (Fire Safety Academy wiki, level 1 Basic).

Source basis: U.S. Nuclear Regulatory Commission (2005), pp. 5-15–5-16; Zalosh (2002), p. 3-420
Alt text: Heated vessel fails, releasing expanding vapour, fragments, blast and a fireball.

Licensing

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

File history

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	Date/Time	Dimensions	User	Comment
current	16:08, 2 November 2026	900 × 600 (7 KB)	Sanne (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity
	09:10, 2 November 2026	900 × 600 (7 KB)	Sanne (talk \| contribs)	Add modest Fire Safety Academy logo-icon watermark
	08:21, 2 November 2026	900 × 600 (5 KB)	Sanne (talk \| contribs)	Upload fse-explosion-v2.svg: diagram for Explosion (level-1 visual plan V2)

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Explosion

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Short title	Heated vessel fails, releasing expanding vapour, fragments, blast and a fireball.
Image title	Three stages. 1: a fire heats a vessel holding pressurised liquid; the wall above the liquid (the vapour space) is not cooled by liquid and weakens; the liquid level varies between cases. 2: the vessel fails; the released contents flash and expand, driving a blast wave and throwing fragments. 3: if the released contents ignite, a fireball forms and emits intense thermal radiation.
Width	900
Height	600