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Study finds engines emit exhaust nanoparticles even when not fueled during engine braking

Green Car Congress

Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The exhaust sample was taken from the exhaust manifold. The exhaust sample was taken from the exhaust manifold.

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Nevada launches “Clean Cars Nevada” effort; adopting California LEV and ZEV

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Nevada Governor Steve Sisolak announced the “ Clean Cars Nevada ” initiative, which will evaluate the adoption of new regulations to provide Nevadans with more choices for low and zero emission electric passenger cars and trucks at dealerships throughout the state beginning in 2024.

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Monash study on solar-driven electrolysis for green hydrogen production cautions on life-cycle emissions and EROI

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Taking IRENA’s REmap scenario as a reference, renewable hydrogen could deliver 5% of total final energy demand in 2050. There is no immediate concern for copper resources, but the average ore grade is declining as higher grade deposits become exhausted. According to the IEA, less than 0.1%

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BMW fitting all gasoline and PHEV models in Germany with particulate filters for Euro 6d-TEMP compliance

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As of July 2018, all BMW gasoline and plug-in hybrid models available in Germany will be fitted as standard with a gasoline particulate filter (GPF) and thus will comply with the exhaust standard Euro 6d-TEMP. New passenger car models to be newly certified in the EU are subject to the WLTP (Worldwide Harmonized Light Vehicles Test Procedure).

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EPA Proposes to Streamline Approval Process for Fuel Conversion Systems

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The proposed rule would cover conversions of light-duty vehicles and heavy-duty highway vehicles and engines, and would apply to all clean alternative fuels. Exhaust, Evap, and OBD testing 2. Exhaust and Evap testing + OBD attestation. current calendar year - 1. MY 2009, 2010, 2011 and < useful life mileage. Intermediate age.

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SwRI D-EGR gasoline demo vehicle delivers diesel efficiency at lower cost; potential for LEV III/Tier 3 emissions

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Southwest Research Institute (SwRI) announced preliminary test results of its Dedicated-Exhaust Gas Recirculation (D-EGR) demonstration vehicle ( earlier post ) at the SAE 2014 World Congress in Detroit. With D-EGR, one or more cylinders have their exhaust connected directly to the intake system. Overall, the engine offered a 13.1%

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Promising Delphi 1st-gen Gasoline Direct Injection Compression Ignition engine meeting ultra fuel efficient program targets

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Compared to new diesel engines, the Delphi team found that BSFC for GDCI at light loads was comparable or better, and at high loads was about 5% higher. Due to the lower exhaust enthalpy of lower temperature engines using PPCI, it is difficult to produce intake boost with acceptable boost system parasitis. —Sellnau et al.

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