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.
URL  Click Here
  
Export  Tagged XML BibTex