The applicability of photoacoustic measurement technique for qualitative investigation of diesel emission

Hodovány Szabolcs and Kun Szabó Fruzsina and Kurilla Boldizsár and Ajtai Tibor and Szabó Gábor and Bozóki Zoltán: The applicability of photoacoustic measurement technique for qualitative investigation of diesel emission.

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Abstract

In our work parallel measurement of wavelength dependent optical absorption, size distribution and number-concentration were produced using multi wavelength photoacoustic spectrometer (4λ-PAS) and scanning mobility particle sizer (SMPS). For comparative study two different fuel type was tested at three different working points of the engine. The thermal evolution of the emission was also examined using thermodenuder (TD) unit. Bimodal size distribution of emissions at reference temperature was achieved using pure petroleum-based fuel (B0). The OAC values measured at the operating wavelengths of the instrument decreased with increasing rev and rated torque at all wavelengths. The wavelength dependence quantified by Aerosol Angström Exponent (AAE) can be used here for qualitative analysis of carbon emission and showed increased volatility of organic particles towards higher temperatures.

Item Type: Conference or Workshop Item
Journal or Publication Title: Proceedings of the International Symposium on Analytical and Environmental Problems
Date: 2021
Volume: 27
ISBN: 978-963-306-835-9
Page Range: pp. 134-137
Language: English
Publisher: University of Szeged
Place of Publication: Szeged
Event Title: International Symposium on Analytical and Environmental Problems (27.) (2021) (Szeged)
Related URLs: http://acta.bibl.u-szeged.hu/75798/
Uncontrolled Keywords: Kvantumelektronika
Additional Information: Bibliogr.: 137. p. ; ill. ; összefoglalás angol nyelven
Subjects: 01. Natural sciences
01. Natural sciences > 01.03. Physical sciences
Date Deposited: 2022. May. 30. 11:54
Last Modified: 2022. Aug. 08. 15:40
URI: http://acta.bibl.u-szeged.hu/id/eprint/75946

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