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Laser-induced incandescence particle size measurements in a heavy-duty diesel engine
| Publication Type | | Journal Article |
| Year of Publication | | 2006 |
| Authors | | Bougie, B.; Ganippa, L.C.; Van Vliet, A.P.; Meerts, W.L.; Dam, N.J.; Ter Meulen, J.J. |
| Journal Title | | Combustion and Flame |
| Volume | | 145 |
| Issue | | 3 |
| Pages | | 635-637 |
| Journal Date | | 05/2006 |
| Abstract | | Laser-induced incandescence (LII) is a relatively
new experimental method for studying the soot formation
process in flames. LII is based on the quasi-instantaneous heating of soot particles, by means of a high-energy pulsed laser beam, to almost their vaporization temperature, resulting in a strong but transient increase in their incandescence. After the laser pulse the particles cool down, at a rate which is dependent on their surface-to-volume ratio. The decay rate of the laser-induced incandescence intensity thus contains information on the particle size distribution within the irradiated volume. In this communication we report on the characterization of soot by time resolved LII (Tire-LII) measurements in a heavy-duty diesel engine, with peak pressures up to 6 MPa, paying particular attention to the correction required for the finite time resolution of the hardware, and to the role of the initial particle temperature. |
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