Recent developments in laser-induced incandescence (LII) for soot diagnostics in high-pressure laminar flames and engine-like Diesel combustion
نویسندگان
چکیده
The analysis of soot formation and oxidation is essential for Diesel engine development to meet future pollutant emission reduction requirements. In recent years laser-induced incandescence (LII) has developed to a powerful tool for soot diagnostics in flames, even in the challenging environment of Diesel combustion. This work presents some recent applications of LII for soot particle sizing in high pressure combustion environments including premixed laminar ethylene/air flames, diesel combustion in a constant volume spray combustion chamber and in-cylinder engine combustion, with some emphasis on challenges in modeling time-resolved LII signal transients in these environments.
منابع مشابه
Soot diagnostics at elevated pressure: Laser-induced incandescence and multi-line NO-LIF thermometry
This article presents tools for soot diagnostics at elevated pressure. Investigations on laser-induced incandescence (LII) are shown in a laminar premixed ethylene/air flame at pressures up to 5 bar in a recently constructed high-pressure burner. The LII signal decay was compared to results of a numerical model taking into account the pressure-dependent heat transfer. Required input parameters ...
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Laser-induced incandescence (LII) is investigated in laminar premixed flat ethylene/air flames at pressures up to 5 bar in a recently constructed high-pressure burner. Time-resolved LII signals were compared with a numerical model considering the influence of pressure on the LII signal decay. Peak particle temperatures after laser heat up were measured by the detection of the LII signal at two ...
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