File:Fse-heat-flux-v3.svg

Fse-heat-flux-v3.svg (SVG file, nominally 900 × 600 pixels, file size: 7 KB)

Summary

Worked example: a smoke layer of 634 °C under a 4 mm steel roof gives a heat flux of about 7,670 W/m²; over 1,680 m² of roof this is about 12.9 MW. Based on Van Rossum (2027), §5.2.

Original vector illustration for Heat flux, level 2 Intermediate.

Source basis: Van Rossum (2027), §5.2 (worked example roof)
Alt text: Building section with a 634 °C smoke layer under a thin steel roof; 7,670 W/m² through one square metre times 1,680 m² gives 12.9 MW.

Licensing

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

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	16:55, 2 November 2026		900 × 600 (7 KB)	Lisa (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Heat flux

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Short title	Worked example: a smoke layer of 634 °C under a 4 mm steel roof gives a heat flux of about 7,670 W/m²; over 1,680 m² of roof this is about 12.9 MW. Based on Van Rossum (2027), §5.2.
Image title	Building section with a 634 °C smoke layer under a thin steel roof; 7,670 W/m² through one square metre times 1,680 m² gives 12.9 MW. Source basis: Van Rossum (2027), §5.2 (worked example roof)
Width	900
Height	600