File:Fse-hand-calculations-v2.svg

Fse-hand-calculations-v2.svg (SVG file, nominally 900 × 600 pixels, file size: 12 KB)

Summary

Mean flame height from Heskestad's correlation for fires 0.5 m and 1.21 m across. Below about 63 kW the 1.21 m fire gives a negative height, where the correlation is not valid. Based on Heskestad (2002), p. 2-3.

Original vector illustration for Hand calculations, level 2 Intermediate.

Source basis: Heskestad (2002), p. 2-3 (Equation 8, validity remark); p. 2-4 (Example 3)
Alt text: Two rising curves of flame height against heat release rate for fire diameters of 0.5 m and 1.21 m; the larger fire starts below zero at small outputs.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:37, 2 November 2026		900 × 600 (12 KB)	Lisa (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Hand calculations

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Short title	Mean flame height from Heskestad's correlation for fires 0.5 m and 1.21 m across. Below about 63 kW the 1.21 m fire gives a negative height, where the correlation is not valid. Based on Heskestad (2002), p. 2-3.
Image title	Two rising curves of flame height against heat release rate for fire diameters of 0.5 m and 1.21 m; the larger fire starts below zero at small outputs. Source basis: Heskestad (2002), p. 2-3 (Equation 8, validity remark); p. 2-4 (Example 3)
Width	900
Height	600