Articles | Volume 2, issue 2
https://doi.org/10.5194/ar-2-261-2024
https://doi.org/10.5194/ar-2-261-2024
Research article
 | 
07 Aug 2024
Research article |  | 07 Aug 2024

Influence of soot aerosol properties on the counting efficiency of instruments used for the periodic technical inspection of diesel vehicles

Tobias Hammer, Diana Roos, Barouch Giechaskiel, Anastasios Melas, and Konstantina Vasilatou

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Cited articles

Adam, F., Olfert, J., Wong, K.-F., Kunert, S., and Richter, J. M.: Effect of Engine-Out Soot Emissions and the Frequency of Regeneration on Gasoline Particulate Filter Efficiency, SAE Tech. Pap., 2020-01–14, https://doi.org/10.4271/2020-01-1431, 2020. 
AU-Richtlinie: Richtlinie für die Durchführung der Untersuchung der Abgase von Kraftfahrzeugen nach Nummer 4.8.2 der Anlage VIIIa StVZO und für die Durchführung von Abgasuntersuchungen an Kraftfahrzeugen nach § 47a StVZO (AU-Richtlinie), Stand 2021, https://beck-online.beck.de/Dokument?vpath=bibdata%5Cges%5Cbrd_013_2008_0196%5Ccont%5Cbrd_013_2008_0196.htm, last access: 29 July 2024. 
Bischof, O. F., Weber, P., Bundke, U., Petzold, A., and Kiendler-Scharr, A.: Characterization of the Miniaturized Inverted Flame Burner as a Combustion Source to Generate a Nanoparticle Calibration Aerosol, Emission Control Science and Technology, 6, 37–46, https://doi.org/10.1007/s40825-019-00147-w, 2020. 
Botero, M. L., Londoño, J., Agudelo, A. F., and Agudelo, J. R.: Particle Number Emission for Periodic Technical Inspection in a Bus Rapid Transit System, Emission Control Science and Technology, 9, 128–139, https://doi.org/10.2139/ssrn.4246867, 2023. 
Burtscher, H., Lutz, T., and Mayer, A.: A New Periodic Technical Inspection for Particle Emissions of Vehicles, Emission Control Science and Technology, 5, 279–287, https://doi.org/10.1007/S40825-019-00128-Z, 2019. 
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Short summary
More than 35 000 particle counters designed for the periodic technical inspection of diesel engine exhaust have been placed on the European market in the past few years. This work shows that the counting efficiency of these instruments depends on the properties of the test aerosols, even if all of them are combustion-based soot of similar mobility diameter. The aim of this study is to promote harmonisation of measurement procedures in the field of emission control.
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