Absolute and real time experimental radiative loss measurements of spherical expanding free flames: FAIRS (Fast Absolute InfraRed Sensor)—An innovative technique - Archive ouverte HAL Access content directly
Journal Articles Review of Scientific Instruments Year : 2022

Absolute and real time experimental radiative loss measurements of spherical expanding free flames: FAIRS (Fast Absolute InfraRed Sensor)—An innovative technique

(1) , (1) , (2) , (3) , (1)
1
2
3

Abstract

An innovative technique was developed for the direct measurement of the absolute radiant flux emitted from transient flames. The design of the experimental device, called FAIRS (Fast Absolute Infra-Red Sensor), is detailed in this work. The main concept of FAIRS is based on the combination of a carbon nano-tube-based black body as a sensitive element, coupled to a fast IR HgCdTe detector via an achromatic optical setup. A specific calibration protocol based on a laboratory blackbody (ambient to 850 °C) allows the qualification of the FAIRS for absolute radiative heat-flux measurements, with a response time less than 1 µs that was checked, thanks to pulsed laser irradiation. It is thus demonstrated that FAIRS is a good candidate for transient measurements, with a simplified calibration procedure. FAIRS was coupled with ultra-fast schlieren imaging on spherical expanding CH 4 /air and C 3 H 8 /air flames. In this condition, it is possible to correlate the real time flame diameter to its absolute radiative heat losses.
Not file

Dates and versions

hal-03869302 , version 1 (24-11-2022)

Identifiers

Cite

Mahmoud Idir, Ayan Mousse Rayaleh, Domingos de Sousa Meneses, Nadjib Semmar, Nabiha Chaumeix. Absolute and real time experimental radiative loss measurements of spherical expanding free flames: FAIRS (Fast Absolute InfraRed Sensor)—An innovative technique. Review of Scientific Instruments, 2022, 93 (9), pp.095103. ⟨10.1063/5.0101519⟩. ⟨hal-03869302⟩
0 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More