Experimental Investigation of Radiation Emitted by Optically Thin to Optically Thick Wildland Flames

Table 2

Effective radiative properties of the flame. WS are used as fuel, with a fuel load of 1 kg/m².

Fuel bed length	0.5 m	1 m	2 m	3 m	4 m
Effective intensity I (kW/m^2·sr)	4.2	23.8	29.7	37.8	43.4
𝜀=I/I^0(1400K)	0.07	0.41	0.51	0.65	0.74
Mean extinction coefficient; 𝜅 (m^−1)	0.15	0.53	0.36	0.35	0.34