Guiding document for pollutant reducing operations and maintenance of NRMM, PTW and HD
report
The deliverable analyses the current emission situation for: Non Road Mobile Machinery with diesel engines (NRMM), Power Two-Wheelers (PTW), i.e. mopeds and motorcycles, Heavy Duty Vehicles (HDVs). NRMM with diesel engines and HDVs contribute relative high shares mainly to NOx and CO2 emissions, the PTWs have relatively high contributions to HC and CO emissions. For the three vehicle categories a number of measures has been identified a driver can directly take to reduce tail-pipe emissions. The main options are listed below: Reduction of idling for HDV, NRMM and PTW. Avoiding idling for NRMM and HDVs, where stand still can have relevant shares in the daily operation. For modern diesel engines equipped with SCR catalysts, the NOx emissions increase significantly after approx. 5 minutes idling, since the catalyst cools down in idling below the temperature levels needed for proper NOx conversion. Therefore the relative emission reduction is much higher for Stage IV and EURO VI engines than for older models. The absolute reduction by switching off the engine however, is even higher for older models without aftertreatment systems. Certainly also for PTWs unnecessary idling of the engine should be avoided.
Topics
TNO Identifier
873231
Publisher
TNO
Collation
44 p.
Place of publication
Den Haag