Published in Fire Technology:https://doi.org/10.1007/s10694-018-0810-3
Pre-print available on ResearchGate: Link
James L Urban, Michela Vicariotto, Derek Dunn-Rankin, Carlos Fernandez-Pello
In this project we measured the temperature of glowing firebrands in various air-flows (1-4 m/s) using Color Pyrometry and Infra-Red (IR) photography. The results show that the emissivity of the firebrand surface changes as it burns and the char is reduced to ash, which is then shed intermittently throughout the burning. This makes IR camera measurements more difficult as the emissivity must be dynamically compensated for.