Radiation From an Ethylene Diffusion Flame

Abstract

Radiation from a small ethylene flame burning in air has been measured at pressures between 40 and 95 cm of mercury

The radiation between 0.4 μ m and 5.5μ m was shown to be dependent on the pressure. At 40 cm Hg the radiation was 65% of that at 76 cm Hg, and at 90 cm Hg it was 120 Radiation between 0.4 and 3.0 μ was more strongly dependent upon pressure, and at 40 cm Hg was 50% of that al 76 cm, and it was 140% at 90 cm

An approximate calculation indicates that 45 % of the total radiation at atmospheric pressure arises from carbon particles, the remainder coming from gaseous radiation