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Development of a Calibration Method for Measuring the Particle Number Concentration in Automotive Exhaust
Madlen Pramstrahler
11:15 - 12:15 Wednesday 20 January 2021 online

Video: https://bigmail.TUGraz.at/outgoing/madlen_pramstrahler_134059_2999/1742_de.html

Soot particles from the automotive exhaust are contributing considerably to air pollution and can cause cardiovascular and respiratory diseases [WHO, 2018]. Therefore, diesel particle filters have been introduced to decrease particle emissions. It is necessary to validate regularly their particle removing efficiency during periodic technical inspections of the automotive vehicles and thus, a new robust measurement device has to be developed. It is crucial to ensure reliability and traceability for such a device through calibration.

This talk will give an insight into the requirements and the possibilities when building a calibration setup for measuring particle number concentrations and the most promising setup is presented. Further, the experimental test results for this setup are shown and discussed concerning linearity and measurement uncertainty.



[WHO, 2018] WHO (2018). Ambient (outdoor) air pollution. https://www.who.int/news-room/fact-sheets/detail/ambient-(outdoor)-air-quality-and-health, accessed on May 12 2020.