File:Fse-equivalence-ratio-v2.svg

Fse-equivalence-ratio-v2.svg (SVG file, nominally 900 × 600 pixels, file size: 8 KB)

Summary

Control volumes for the plume, upper layer and compartment equivalence ratios, with external burning at the door. Based on Gottuk and Lattimer (2002), pp. 2-55 and 2-57.

Original illustration for Equivalence ratio, level 4 Expert.

Source basis: Gottuk and Lattimer (2002), p. 2-55 (two-layer system, flame extension and external burning, Figures 2-5.1a to c) and p. 2-57 (definitions of φp, φul, φc); redraw, do not copy
Alt text: Cross-section of a room with a fire plume, a hot upper layer and a door; dashed outlines mark the plume, the layer and the whole room.

Licensing

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

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:10, 2 November 2026		900 × 600 (8 KB)	Jan (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Equivalence ratio

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Short title	Control volumes for the plume, upper layer and compartment equivalence ratios, with external burning at the door. Based on Gottuk and Lattimer (2002), pp. 2-55 and 2-57.
Image title	Cross-section of a room with a fire plume, a hot upper layer and a door; dashed outlines mark the plume, the layer and the whole room. Source basis: Gottuk and Lattimer (2002), p. 2-55 (two-layer system, flame extension and external burning, Figures 2-5.1a to c) and p. 2-57 (definitions of φp, φul, φc); redraw, do not copy
Width	900
Height	600