1 / 18

NORTRIP 2010-11-19

NORTRIP 2010-11-19. Cecilia Bennet Göran Blomqvist Mats Gustafsson. Pavements (D max = 11 mm, 50 km/h). PM 10 (mg/m 3 ). Nordic Ball Mill value. Multipel linear regression (road simulator). PM10 = 1,38NBM-0,087RH+2,9SP-0,00038 NBM = Nordic Ball Mill value RH = relative humidity

csilla
Télécharger la présentation

NORTRIP 2010-11-19

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. NORTRIP 2010-11-19 Cecilia Bennet Göran Blomqvist Mats Gustafsson

  2. Pavements (Dmax = 11 mm, 50 km/h) PM10 (mg/m3) Nordic Ball Mill value

  3. Multipel linear regression (road simulator) PM10 = 1,38NBM-0,087RH+2,9SP-0,00038 NBM = Nordic Ball Mill value RH = relative humidity SP = stud protrusion

  4. Emission factors derived from road simulator studded unstudded summer

  5. Emission factors Source C Sink mg/m3 The road simulator in theory:

  6. : mg/m3

  7. Emission factors cont. The source is S=C(eq)*D [mg/m3/h] for this specific room. The speed of the four weels that simulates one car is v [km/h] The volume of the room is V [m3] Emission factor per vehicle km = C*D * V/v [mg/vehicle km] Note: D is sensitive to which data are used for the fitting. D differs for different speeds. S/D seems to differ for different RH. Roughtly, at 30 km/h EF=C(eq)*80

  8. CMA+ -- Source function -- Theoretical -- Measuredconcentration

  9. CMA+

  10. CMA+

  11. The RH ”problem”.

  12. Evaluation of street cleaners Dry Humid

  13. Passive IVL-filters and on-vehicle measurements of PM10

  14. Road surface moisture…

  15. Deposition on passive filters

  16. …plus mobile measurements…

  17. …plus road moisture 0-30mm

  18. Possible contributions • Emission factors • Pavement and tyre parameters • Ongoing development • RH? • Effects of measures • Dust binding (modelling the effect) • Street cleaning • Importance of surface humidity on gravel roads

More Related