Soot is considered a hazardous pollutant emission, and is typically a result of incomplete combustion processes and is thus also related to combustion performance. Laser-Induced Incandescence (LII) is a laser-optical measurement technique dedicated to soot diagnostics. LII can provide measurements of soot volume fraction in e.g. Diesel engine exhaust and even instantaneous images of soot distribution during the formation inside a running IC engine.
The view from below through the optical piston bowl of a Diesel engine (a), together with calibrated LII measurement providing instantaneous soot-volume-fraction images (b). Courtesy of H. Bladh et al, Lund University.
- Non-intrusive, in-situ measurements
- Full control of hardware from the software
- Multi-parameter measurements by combination with PIV or LIF
- Modular system allowing easy future upgrades
Learn more about LIF for combustion diagnostics:
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