Combining photoacoustic spectroscopy and scanning mobility particle sizer instruments for characterization of diesel emissions
In this study, we explored the use of Multi-Wavelength Photoacoustic Spectroscopy (4λ-PAS) in combination with a Scanning Mobility Particle Sizer (SMPS) to analyze diesel particulate matter (DPM). The goal was to provide a comprehensive, real-time analysis of diesel emissions across three engine mod...
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| Dokumentumtípus: | Könyv része |
| Megjelent: |
University of Szeged
Szeged
2024
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| Sorozat: | Proceedings of the International Symposium on Analytical and Environmental Problems
30 |
| Kulcsszavak: | Fotoakusztikus spektroszkópia, Levegőszennyeződés - mérése - módszer |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/85655 |
| Tartalmi kivonat: | In this study, we explored the use of Multi-Wavelength Photoacoustic Spectroscopy (4λ-PAS) in combination with a Scanning Mobility Particle Sizer (SMPS) to analyze diesel particulate matter (DPM). The goal was to provide a comprehensive, real-time analysis of diesel emissions across three engine modes using two different fuel types. Additionally, we investigated the thermal evolution of emissions at three different temperatures. The total number concentration (TNC) and total volume concentration (TVC) showed a retrograde tendency with increasing torque and RPM. The Optical Absorption Coefficient (OAC), measured using the 4λ-PAS instrument, also decreased with rising torque and RPM. The qualitative analysis quantified using the Aerosol Ångström Exponent (AAE) showed a decline at higher engine RPM and torque, indicating an increase in the proportion of inorganic carbon in the emissions. |
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| Terjedelem/Fizikai jellemzők: | 41-44 |
| ISBN: | 978-963-688-009-5 |