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Gdańsk University of Technology

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A concept for reducing PM 10 emissions for car brakes by 50%

With regard to airborne particles with an aerodynamic diameter of less than 10 μm (PM10), in countries in the European Union, the mass of brake emissions equals approximately 8–27% of the total traffic-related emissions. Using a research methodology combining tests at different scale levels with contact mechanics simulations and PM10 chemical characterization, the REBRAKE EU-financed project had the following aims: i) to demonstrate the possibility of reducing the PM10 fraction of the airborne particulate from brake wear by 50 wt%; ii) to enhance the general understanding on the physical and chemical phenomena underlying the brake wear process. The results achieved so far indicate that it is possible to design a disc brake system for a European standard car affording at least a 32 wt% PM10 emission reduction using a standard European pad and a heat-treated rotor. A further reduction to 65 wt% PM10 emission could be achieved with NAO pad material and the same heat-treated disc.

Authors

  • Guido Perricone,
  • Vlastimil Matějka,
  • Mattia Alemani,
  • Giorgio Valota,
  • Andrea Bonfanti,
  • Alessandro Ciotti,
  • Ulf Olofsson,
  • Anders Söderberg,
  • Jens Wahlström,
  • dr hab. inż. Oleksii Nosko link open in new tab ,
  • Giovanni Straffelini,
  • Stefano Gialanella,
  • Metinoz Ibrahim