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| Titel: |
The Effect of Sulphur in Diesel Exhaust Aerosol: Models Compared with Measurements |
| Auteur: |
Lemmetty, Mikko Ronkko, Topi Virtanen, Annele Keskinen, Jorma Pirjola, Liisa |
| Verschenen in: |
Aerosol science and technology |
| Paginering: | Jaargang 42 (2008) nr. 11 pagina's 916-929 |
| Jaar: |
2008-11 |
| Inhoud: |
A nodal aerosol dynamics model TUTEAM (Tampere University of Technology Exhaust Aerosol Model) was developed to study the number and mass evolution of exhaust particles in a dilution system. The model includes processes such as nucleation, condensation, coagulation, and wall losses and it takes into account the dilution and temperature cooling profiles. The model considers nucleation and soot modes separately. For soot particles the fractal structure was implemented in the model to take the density and size, which continuously vary due to condensation, into account accurately. The model was compared with a set of dynamometer measurements of a heavy-duty diesel vehicle with different lubricant oils and fuels, and with a sectional aerosol dynamics model AEROFOR. The trends of nucleation mode geometric median diameter and number concentration as a function of fuel and lubricant sulphur contents were reproduced well. Also the predicted particle composition was in agreement with the measurements of Schneider et al. (2005). |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 8 van 8 gevonden artikelen
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