Fire Plume Centerline Temperature Calculator

Calculate fire plume centerline temperature above a fire source using Heskestad plume correlations.

Input Parameters

Results

--
Centerline Temperature
degC
--
Temperature Rise
degC
--
Virtual Origin (z0)
m
--
Centerline Velocity
m/s
Note: Valid for the far-field (buoyant) plume region above the mean flame height. Below the flame tip, the Heskestad plume equation may overestimate temperatures. Per SFPE Handbook Chapter 13.

Reference

Heskestad Plume (SFPE Handbook Ch. 13): z0 = 0.083*Q^(2/5) - 1.02*D (virtual origin) delta_T0 = 9.1*(T_a/(g*cp²*rho²))^(1/3) * Qc^(2/3) * (z-z0)^(-5/3) u0 = 3.4*(g/(cp*rho*T_a))^(1/3) * Qc^(1/3) * (z-z0)^(-1/3) Qc = 0.70*Q (convective fraction)