My colleague Prof. Yuri van Mierlo, University of Brussels, is an active research on emissions, and

Filed on November 11, 2014 by Steinbuch, Automotive & Mobility, Research and tagged tires, electrical vehicles, electrical, particulates, hybrid vehicles, environment, plug-in, plug-in electric, brakes. Bookmark the permalink. 1 Comment
Today there was a lot of commotion in the Belgian and Dutch press about the particulate matter production of electric cars. The discussion was sparked by a report by Transport & Mobility Leuven. It was based on a literature review concluded that in modern petrol and diesel cars particulate matter production mainly from the tires (0.016 g / km) is, and significantly greater than via the outlet pra lecco (0.004 g / km). This is by no means new information, the report by CE Delft and TNO last June shows exactly the same conclusion. It is true that is reported up in the Belgian report that, in general, the electric cars are heavier, and thus give rise to more wear of the tires rise. In contrast, the brake wear is again lower because of the regenerative braking, but this is only a small fraction. The particles from brake and tire wear are moreover larger than the particulates from the exhaust gases, and this is less unfavorable (the smaller the more harmful). According to researchers at the University of Tilburg is placed too little emphasis in the discussion of fine dust on the actual health pra lecco damage, in particular the very small particles released during combustion of liquid fuels. See also this 2005 report by the Milieu Assessment Agency (via RIVM), and this link.
I am not a specialist in this field. There are some questions I have. So it's not clear to me whether the above exhaust emissions are measured in stationary conditions, while we all know that a cold start (often just in town ...) leads to greater emissions in particular diesel engines. Also are there in the exhaust pra lecco substances pra lecco not listed under particulates but may be harmful.
My colleague Prof. Yuri van Mierlo, University of Brussels, is an active research on emissions, and today has a sharp note written where he brushes aside the other Belgian piece: "Particulate Study e-car 'worthless'." The key message is that Yuri looks at the whole chain (well 2-wheel) while a scientific basis is that electric cars four times less stressful with respect to particulate matter than combustion engines: "Most of the particles pra lecco produced during pra lecco oil refining for the production of gasoline as well as for the production of the vehicle itself. "
A recent study by Transport and Mobility Leuven did a lot of (fine) stir in the media. According to this study caused an electric car as much particulate matter as a conventional gasoline car. A surprising result that is significantly different from internationally published results.
If these study of Transport and Mobility Leuven scrutinizes it must be observed pra lecco that not only used the wrong figures, but even worse that it is not based on a proper scientific method.
To compare the environmental impact of vehicles on a recognized scientific basis should be using a full life cycle analysis. pra lecco In such a method are not only the emissions coming from the exhaust pipe of a vehicle will be charged, but also the emissions for the production of the fuel (petrol pra lecco or diesel), and electricity. In addition, also the environmental impact of the production of the vehicle and its components, including the battery, also taken into account as well as the impact of the recycling of certain components when the vehicle is worn. Of course, in such a scientific method also takes into account the wear of the tires and brakes.
A comprehensive analysis of the environmental pra lecco impact of vehicles can be found in the doctoral work of Martin Messagie "Environmental performance of electric vehicles, a life cycle system approach" (Free University of Brussels, 2013). The work was validated by numerous international experts, including Prof. Anne-Marie Tillman (Chalmers), an authority in the field of life cycle analysis. Were also parts of this research published in leading international scientific journals that use a double-blind review process.
Of this research work shows that the production of particulate matter due to the brakes, tires and road surface, only 5% of the total production of fine particles pra lecco of a vehicle over its entire lifespan. Since electric cars through the electric pra lecco motor also the vehicle pra lecco braking, known as regenerative braking, these vehicles have less wear on the mechanical brakes than diese