File:Fse-emissivity-v4.svg

Fse-emissivity-v4.svg (SVG file, nominally 900 × 600 pixels, file size: 14 KB)

Summary

Emitted heat flux E = εσT⁴ against gas temperature for three emissivities. Based on Van Rossum (2027), §5.4, Walton and Thomas (2002), p. 3-184, and Tien et al. (2002), p. 1-85.

Original vector illustration for Emissivity, level 2 Intermediate.

Source basis: Van Rossum (2027), §5.4 (E = εσT⁴); Walton and Thomas (2002), p. 3-184 (873 K, ε = 0.5); Tien et al. (2002), p. 1-85 (ε = 0.33 for a 0.5 m wood smoke layer)
Alt text: Emitted heat flux against temperature for emissivities 0.33, 0.5 and 1; at 600 °C about 11, 16.5 and 33 kW/m².

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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 (14 KB)	Lisa (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Emissivity

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Short title	Emitted heat flux E = εσT⁴ against gas temperature for three emissivities. Based on Van Rossum (2027), §5.4, Walton and Thomas (2002), p. 3-184, and Tien et al. (2002), p. 1-85.
Image title	Emitted heat flux against temperature for emissivities 0.33, 0.5 and 1; at 600 °C about 11, 16.5 and 33 kW/m². Source basis: Van Rossum (2027), §5.4 (E = εσT⁴); Walton and Thomas (2002), p. 3-184 (873 K, ε = 0.5); Tien et al. (2002), p. 1-85 (ε = 0.33 for a 0.5 m wood smoke layer)
Width	900
Height	600