Remove Downsizing Remove Exhaust Remove Ozone Remove Pollution
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MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

Green Car Congress

NO x is a precursor for both ground level ozone and secondary PM 2.5 This has resulted in higher catalyst loading per volume of substrate and led to downsizing of systems from those available in 2010. Some of these strategies can be deployed on cold-start to heat up aftertreatment and keep it hot under low engine load operation.

Emissions 291
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Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

Green Car Congress

Although real-world fuel economy improvements from GDI technology alone are close to 1.5%, they can reach 8% by downsizing and turbocharging the engine, which can be achieved on GDI engines without loss of power compared to PFI engines. We estimate ozone and SOA formation potential. —Saliba et al. Credit: ACS, Saliba et al.

Fleet 207