Experiments carried out in a 350 MW utility boiler with this set-up show that the radiation of pulverized coal flame from 533 urn to 1050 nm in wavelength is very closed to the radiation of gray body.

• 通过测量350MW电站锅炉的煤粉火焰从 533nm至1050nm波段的辐射光谱，发现煤粉火焰的辐射非常接近灰体辐射。