Emission spectra of burning iron in high-pressure oxygen

✍ Scribed by Joe Kurtz; Teodor Vulcan; Theodore A. Steinberg

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 853 KB
• Volume: 104
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(95)00156-5

✦ Synopsis

Emission spectra of burning vertical iron rods in high-pressure oxygen were taken and correlated with the different stages of the burn evolution. By applying the least squares method to the spectral curves, the corresponding equivalent blackbody temperatures were computed. Based on the assumption of a wavelength-independent emissivity between 495 and 780 nm, it was found that the surface-averaged temperatures of the molten iron/iron oxide droplets ranged from a minimal value of _ 2500K to a maximum value of -3900 K (in 1630 kPa Oz) and the temperatures increased with the size (and age) of the droplets.