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Methodology to perform accurate qualitative LII measurements inside a heavy-duty engine

Soot formation and oxidation inside modern diesel engines still are poorly understood. So it is important to have a methodology to get accurate information of these processes. The laser-induced incandescence is a measurement technique that is highly specific for carbonaceous particles. With its high spatial and temporal resolution it enables exact qualitative statements about the occurrence of soot inside the combustion bowl. These results can afterwards for example be used for a soot formation model in CFD simulations. There it is really necessary to know where and when the soot formation and oxidation takes place and at the end the LII measurements inside the engine are at the same time validation and optimisation for the CFD simulations.

Reported by

LTT Erlangen, University of Erlangen-Nuremberg
Am Weichselgarten 8
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