Towards a test stand for standardized measurements of the brake emissions
2016 (English)In: Proceedings of the Institution of mechanical engineers. Part D, journal of automobile engineering, ISSN 0954-4070, E-ISSN 2041-2991, Vol. 230, no 11, 1521-1528 p.Article in journal (Refereed) Published
Brake-related particulate matter contributes considerably to the non-exhaust emissions of the transport sector in urban areas of the world. The airborne particle emissions from automotive brakes currently lack any proper regulations. Future regulations require test stands, test cycles and particle instruments to be suitable for measuring the brake emissions. This present work focuses on the design of a novel test stand for reliable measurements of the brake emissions with a high sampling efficiency. A test stand in the form of an inertial disc brake dynamometer was redesigned to allow control of the cleanness of the incoming air and to assure isokinetic sampling. The cleanness of the incoming air, together with an over-pressurized chamber around the brake assembly, ensures that all the particles measured originate from the brake materials. In order to evaluate the novel design, the number and size distributions of the brake emissions are measured online with and without control of the cleanness of the intake air. The results reveal that this test stand can be proposed as a standard test stand to assess objectively the emissions of airborne brake particles in future regulations.
Place, publisher, year, edition, pages
Sage Publications, 2016. Vol. 230, no 11, 1521-1528 p.
Automotive brake, non-exhaust emissions, airborne particles, test stand, isokinetic sampling
Tribology Environmental Sciences Other Civil Engineering
IdentifiersURN: urn:nbn:se:kth:diva-193824DOI: 10.1177/0954407015616025ISI: 000382956200006ScopusID: 2-s2.0-84983297333OAI: oai:DiVA.org:kth-193824DiVA: diva2:1038575
QC 201610192016-10-192016-10-112016-10-19Bibliographically approved