File:Fse-tunnel-fire-v2.svg

Fse-tunnel-fire-v2.svg (SVG file, nominally 900 × 600 pixels, file size: 14 KB)

Summary

Critical velocity from Thomas's corridor relation for three widths, within the range of Klote's design chart. Based on Klote (2002), pp. 4-279–4-280.

Original vector illustration for Tunnel fire, level 2 Intermediate.

Source basis: Klote (2002), pp. 4-279–4-280 (Equation 4a, Figure 4-12.8(b) covers 500–2,000 kW and 1–4 m; redraw from the formula, do not copy)
Alt text: Line chart of critical velocity rising slowly with heat release rate from 150 to 2,000 kW for widths of 1, 2 and 4 m.

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

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:44, 2 November 2026		900 × 600 (14 KB)	Lisa (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Short title	Critical velocity from Thomas's corridor relation for three widths, within the range of Klote's design chart. Based on Klote (2002), pp. 4-279–4-280.
Image title	Line chart of critical velocity rising slowly with heat release rate from 150 to 2,000 kW for widths of 1, 2 and 4 m. Source basis: Klote (2002), pp. 4-279–4-280 (Equation 4a, Figure 4-12.8(b) covers 500–2,000 kW and 1–4 m; redraw from the formula, do not copy)
Width	900
Height	600