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The laser-induced incandescence (LII) and cavity ring-down extinction (CRDE) optical techniques offer excellent sensitivity to allow in situ soot volume fraction $$({f_{\text{v}}})$$ (fv) measurements over a wide dynamic range. The objective of this work is to quantitatively measure the axial $${f_{\text{v}}}$$ fv profiles in two n-butane premixed flames with very different stages of soot maturity...
Experimental and numerical investigation of atmospheric laminar premixed n-butane/O2/N2 flames operating at two equivalence ratios (ϕ=2.16 and 2.32) has been performed. Both flames produce soot particles. Mole fraction of reactants, stable intermediate and combustion products have been obtained using a quartz microprobe coupled to gas chromatography and infrared spectroscopy technique analysis. The...
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