Abstract
Brake emissions generated from brake systems were investigated to elucidate the mechanism of airborne particle generation using commercial brake pads. Brake emission tests were performed using a 1/5 scale brake dynamometer enclosed in a chamber, and the particles were counted using an electrical low-pressure impactor (ELPI+) as a particle counter. The results revealed that the emission factor of low-steel brake pads was approximately five times greater than that of non-steel brake pads on average. In comparison, brake emissions in the number concentration were about two times greater in the case of using low-steel pads. Considerable amounts of off-brake emissions were also found after brake applications. Although multiple concentration peaks were observed in the particle size distribution, there was no correlation among chemical composition, size distribution, and particle morphology. On the other hand, the amount of brake emissions and the size distribution were strongly influenced by the pad surface topography, which comprised contact plateaus and lowlands, regardless of the type of pad.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
