제목 |
[Keynote Addresses] Characterization of Diesel Soot Particles |
분야 |
Special Report |
언어 |
English |
저자 |
Takeyuki Kamimoto(Tokai University) |
Key Words |
Diesel engine, PM emission, soot aggregate, Characterization, Two-color method |
초록 |
The characteristics of diesel soot particles sampled from diesel exhaust of a common-rail turbo-charged diesel engine are quantified by optical diagnostics. The radius of gyration representing the soot aggregates size is measured by the angular distribution of scattering intensity, while the specific extinction is measured by a two-wavelength extinction method. The refractive index of diesel soot is discussed using these data as well as the soot aggregates scattering theory. Lastly, the two-colour method is re-exmined and the physical meaning of the apparent emissivity of luminous flame is explained clearly based on the scattering theory. |
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