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ICCT-sponsored study of in-use testing of 3 Tier2-Bin5, CA LEV-II light-duty diesels finds wide variation of emissions against the limits

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The International Council on Clean Transportation (ICCT) contracted with the Center for Alternative Fuels, Engines and Emissions at West Virginia University to conduct in-use testing of three light-duty diesel vehicles (two 2.0L Overall, urban/suburban driving leads to a 32-39% reduction in fuel economy over highway driving.

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Study finds high exhaust temperatures within NTE operation for heavy-duty diesels with aftertreatment systems contribute to high nanoparticle concentrations

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The transient results illustrate the gradual formation of the nucleation mode particles with continuous increase in exhaust temperatures. Credit: ACS, Thiruvengadam et al. Click to enlarge.

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Parker Hannifin gaining traction with RunWise HD hydraulic hybrid; developing CNG-based HD system, next-gen MD system

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Benefits of the system include a 35%-55% reduction in diesel consumption (fleet average 43%) with lower accompanying greenhouse gas emissions; reduced criteria pollutants; increased productivity, and brake savings. Standard speed from a West Virginia University study (a special route cycle developed to compare performance).

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ICCT study finds real-world NOx emissions from Euro 6 diesels ~7x higher than Euro 6 regulatory levels

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The study follows another recent ICCT report showing that the gap between official and real-world fuel-economy figures in Europe has risen to about 38%. The testing of the US-spec vehicles certified to the US Tier 2 Bin 5/California LEV II standard was commissioned to West Virginia University (WVU) by the ICCT.).

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