File:Fse-flame-extinction-v4.svg

Fse-flame-extinction-v4.svg (SVG file, nominally 900 × 600 pixels, file size: 9 KB)

Summary

Cup burner: a small flame burns above a cup of fuel while air mixed with the agent flows past it; the agent fraction at which the flame goes out is the minimum extinguishing concentration. Based on DiNenno (2002), pp. 4-174 and 4-175.

Original illustration for Flame extinction, level 4 Expert.

Source basis: DiNenno (2002), p. 4-174 (Figure 4-7.1 and description) and p. 4-175 (variations between laboratories); redraw, do not copy
Alt text: Cross-section of a cup burner: a fuel cup inside a glass chimney, with air and agent flowing upwards around a small flame.

Licensing

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

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:11, 2 November 2026		900 × 600 (9 KB)	Jan (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Flame extinction

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Short title	Cup burner: a small flame burns above a cup of fuel while air mixed with the agent flows past it; the agent fraction at which the flame goes out is the minimum extinguishing concentration. Based on DiNenno (2002), pp. 4-174 and 4-175.
Image title	Cross-section of a cup burner: a fuel cup inside a glass chimney, with air and agent flowing upwards around a small flame. Source basis: DiNenno (2002), p. 4-174 (Figure 4-7.1 and description) and p. 4-175 (variations between laboratories); redraw, do not copy
Width	900
Height	600