The handbook opens by establishing the ground rules of combustion. It moves beyond the simple "fire triangle" (fuel, heat, oxygen) to explore the thermodynamics required for piloted ignition versus auto-ignition. It explains concepts such as the Critical Heat Flux (CHF)—the minimum energy required to ignite a material—and how surface temperature correlates with ignition time. For an engineer trying to model fire spread in a building, this data is indispensable.
For each source, Babrauskas provides the energy required to ignite specific materials.
Disclaimer: This article is for informational purposes. Always consult a licensed fire protection engineer for specific safety concerns.