View source for File:Fse-heat-release-rate-per-unit-area-v3.svg

== Summary ==
A t-squared fire at a constant 2,270 kW/m²: the diameter grows in proportion to time and the heat release rate with its square. Based on Heskestad (2002), p. 2-13 and Iqbal and Salley (2004), p. B-4.

Original vector illustration for [[Heat release rate per unit area]], level 2 Intermediate.

* Source basis: Heskestad (2002), p. 2-13 (growth time 140 s, 2,270 kW/m², D = 5.35 × 10⁻³ t); Iqbal and Salley (2004), p. B-4 (constant heat release rate per unit area and circular spread); Ministry of Business, Innovation and Employment (2013), p. 55
* Alt text: Plan view of three concentric circles of burning fuel at 140, 280 and 420 s, with diameters 0.75, 1.5 and 2.25 m and fires of 1, 4 and 9 MW.

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