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Deliverable 13

Deliverable 13. Effects on particulate emissions of anticipated future engine and exhaust aftertreatment technologies complying with future emission standards. A draft has been published on the Particulates site. Will be updated after the Lemnos meeting. Background.

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Deliverable 13

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  1. Deliverable 13 Effects on particulate emissions of anticipated futureengine and exhaust aftertreatment technologies complying with future emission standards

  2. A draft has been published on the Particulates site Will be updated after the Lemnos meeting

  3. Background • A first selection of results related to particle emissions, differences between generations of vehicles and engines as well as effects of aftertreatment equipment (particle traps) • ”A first feeling of the data” • A detailed analysis of fuel effects will be available in a separate document (deliverable 14) • It was not possible to analyse how combustion parameters such as injection pressure, EGR rate, boost pressure, pre-injection and post-injection influenced the particle emissions. • Little information on ”future engine technologies” • Look at previous trends, Euro I to Euro III etc. • More data available on exhaust aftertreatment technology • HD: Continuous Regeneration Trap (CRT)LD: Diesel particulate filter(DPF) • Based on a ”first version” of the database

  4. HD, Transient cycle (ETC)

  5. HD, Nucleation mode, CRT Correction for losses needed

  6. HD, PM

  7. The total number of particles emitted (CPC Total N) for a combination of Volvo engines and fuels (D2, D5)

  8. The number of “non-volatile” particles for a combination of various engines, laboratories and fuels (D2, D5)

  9. Number-based size distribution of particles emitted from four different cars(LAT)

  10. Number-based size distribution of particles emitted from four different cars(LAT)

  11. Particulate emissions (PM) from light-duty diesel cars over the cold NEDC cycle using fuel D2 or D5

  12. The total number of particles emitted (CPC Total N) for a combination of light-duty vehicles and fuels (D2, D5)

  13. The active surface area measured (ASMO) for a combination of light-duty vehicles and fuels (D2, D5)

  14. The number of “non-volatile” particles (ELPI) for a combination of light-duty vehicles and fuels (D2, D5)

  15. PM emissions from cars studied at LAT Four different cars were studied: a Euro I diesel car (VW Golf), a Euro III diesel car (Renault Laguna), a Euro I gasoline car (BMW 318) and a Euro II gasoline car (Toyota Corolla). The two gasoline cars were both equipped with conventional multi-port injected engines.

  16. Peugeot 607 particle emissions from comparable cycles at +22C (MTC)

  17. Wet branch particle concentration during Artemis Motorway as measured by the CPC for D2 and D5 fuels(MTC)

  18. Particulate mass and active surface area for heavy-duty Euro II and Euro III engines

  19. Correlation between particulate mass and active surface area for light-duty Euro II and Euro III cars

  20. General findings • Older engine technology produced higher mass emissions than newer technology • Both new and old technology produced nuclei mode particles under certain operating conditions • HD diesel particulate filters (CRT) removed around 95 % or more of the number of particles in the accumulation mode • And more….

  21. Deliverable 13, how to proceed? • Update the report • Aftertreatment effects might need more detailed analysis? • Focus on general trends (complete driving cycles etc.) • Contributions can be sent to Volvo • Detailed analysis in reports from individual labs (or scientific papers to come)

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