Influence of ferrocene addition to a laminar premixed propene flame: Laser diagnostics, mass spectrometry and numerical simulations

Chemical Transformations in Inhibited Flames over Range of Stoichiometry

“…A low-pressure, rich (φ=2.3), laminar, premixed propene/oxygen/argon flame doped with ferrocene was studied experimentally using molecular beam mass spectrometry (MBMS) and laser-induced fluorescence (LIF) and by numerical simulations (Tian et al, 2009). The flame temperature was obtained by two-line OH LIF measurements, and the additive was found to increase the postflame temperature by 40 K. MBMS analysis of the species profiles of important intermediates in flames with and without ferrocene doping showed a slight increase in the maximum concentration of species, such as CH 2 O, C 5 H 5 , and C 6 H 6 .…”

Quantitative Planar Laser-Induced Fluorescence Technology

“…Their experimental results indicate that the OH concentration is about 7.8 Â 10 15 molecules/cm 3 at the height of 1.8 mm from the burner nozzle. In addition, Tian et al [20] also used bidirectional LIF to quantitatively measure the concentration of iron atoms in a premixed laminar propylene/oxygen/argon flat flames. However, the two opposite directional beams have not been employed in their experiments.…”

“…In the actual experiment, the measured absorption line shape is not normalized, and thus ð ∞ À∞ ϕ ν ðÞ dν 6 ¼ 1 (20) For this reason, it is necessary to normalize it for obtaining the experimental expression of the effective peak absorption cross section.…”

An Investigation of Equilibrium Iron Thermochemistry in Flames

“…However, introducing a nozzle into the flame region also introduces a surface which is considerably cooler than the flame gases. This can lead to iron and/or iron oxide condensation on the nozzle, as was found by Tian et al [15], and can thus complicate measurements of iron species in flames. This condensation may sometimes not occur without nozzle, so that data interpretation of studies using a sampling nozzle may get delicate.…”

“…Deposition of condensed iron species on cooler parts of the combustion apparatus can gravely affect the measurement results if they are not accounted for. The choice of measurement technique will also be affected if condensed iron species may be expected [15].…”