Ashfaq Rana Khawar and Rahman Abdul and Ajtai Tibor and Bozóki Zoltán: Combining photoacoustic spectroscopy and scanning mobility particle sizer instruments for characterization of diesel emissions.
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Abstract
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.
| Item Type: | Conference or Workshop Item |
|---|---|
| Journal or Publication Title: | Proceedings of the International Symposium on Analytical and Environmental Problems |
| Date: | 2024 |
| Volume: | 30 |
| ISBN: | 978-963-688-009-5 |
| Page Range: | pp. 41-44 |
| Language: | English |
| Publisher: | University of Szeged |
| Place of Publication: | Szeged |
| Event Title: | 30th International Symposium on Analytical and Environmental Problems |
| Event Type: | Conference |
| Event Location: | Szeged |
| Event Dates: | 2024. október 7-8. |
| Related URLs: | https://acta.bibl.u-szeged.hu/85607/ |
| Uncontrolled Keywords: | Fotoakusztikus spektroszkópia, Levegőszennyeződés - mérése - módszer |
| Additional Information: | Bibliogr.: 44. p. ; ill. ; összefoglalás angol nyelven |
| Subjects: | 01. Natural sciences 01. Natural sciences > 01.03. Physical sciences |
| Date Deposited: | 2024. Nov. 20. 11:11 |
| Last Modified: | 2024. Nov. 20. 11:11 |
| URI: | http://acta.bibl.u-szeged.hu/id/eprint/85655 |
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