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The Effect of a Particle Oxidation Catalyst (POC®) on Particle Emissions of a GDI Car during Transient Engine Operation Ecocat Oy
- Format:
- Conference/Event
- Author/Creator:
- Happonen, Happonen, author.
- Conference Name:
- SAE 2013 World Congress & Exhibition (2013-04-16 : Detroit, Michigan, United States)
- Language:
- English
- Physical Description:
- 1 online resource
- Place of Publication:
- Warrendale, PA SAE International 2013
- Summary:
- Particle emissions have been generally associated to dieselengines. However, spark-ignition direct injection (SI-DI) engineshave been observed to produce notable amounts of particulate matteras well. The upcoming Euro 6 legislation for passenger cars(effective in 2014, stricter limit in 2017) will further limit theparticulate emissions from SI engines by introducing a particlenumber emission (PN) limit, and it is not probable that the SI-DIengines are able to meet this limit without resorting to additionalaftertreatment systems.In this study, the solid particle emissions of a SI-DI passengercar with and without an installed Particle Oxidation Catalyst(POC®) were studied over the New European Driving Cycle (NEDC) on achassis dynamometer and over real transient acceleration situationson road. It was observed that a considerable portion of particlenumber emissions occurred during the transient acceleration phasesof the cycle. The application of the POC resulted in a reduction ofthose emission peaks and, as a conclusion, the car was able to meetthe 2017 Euro 6 particle number emission limit with the POC.The on-road measurement confirms the results obtained on thechassis dynamometer in that the majority of particle numberemissions associated with SI-DI engines arise from transientacceleration situations. The POC efficiency was verified also onroad by significantly reducing the particle number emission peakscaused during accelerations
- Notes:
- Vendor supplied data
- Publisher Number:
- 2013-01-0839
- Access Restriction:
- Restricted for use by site license
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