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CRC ACES Phase 2 report finds emissions from modern heavy-duty diesels well below required levels

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2010 engines emissions reduction relative to 2010, 2007, and 2004 US emission standards. The study, the Phase 2 Report of the comprehensive Advanced Collaborative Emissions Study (ACES). These reductions came while emissions of fine particles were also 92% lower than the 2010 standard 99% lower than 2004 emissions.

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Comparative study finds that B20 increases emission rates of a number of pollutants in both light- and medium-duty diesel engines at idle

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Emission rates for the 1.7 A new study led by researchers at the University of Michigan compared regulated and unregulated emissions from both light-duty passenger car (1.7 L/2004 calibration engines. L/2004 calibration engines. L engines at idle. Credit: ACS, Chin et al. Click to enlarge. L) and medium-duty (6.4

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New mixed-oxide catalysts shown as viable substitute for platinum catalysts for diesel exhaust aftertreatment

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Under laboratory-simulated diesel exhaust conditions, this mixed-phase oxide material was superior to Pt in terms of cost, thermal durability, and catalytic activity for NO oxidation. Nanostellar was founded in California in 2004 by scientists from Stanford University and NASA Ames Research Center. Wang et al., Click to enlarge.

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SwRI develops D-EGR demonstrator highlighting fuel-efficient, cost-effective engine; 10% and above fuel economy improvements

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The vehicle is currently delivering about a ~13% improvement on the FTP and 10% on the HwFET cycles, according to Dr. Terry Alger, SwRI Assistant Director, Engine & Vehicle R&D, Engine, Emissions & Vehicle Research. PSA has been a member of the HEDGE consortium (now at HEDGE-III ) since 2004. In 2013, SwRI reported a 2.0-liter

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ARB researchers evaluate in-use heavy-duty NOx aftertreatment systems, find elevated levels during certain lower-temperature operations

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A team from the California Air Resources Board (ARB) reports on their evaluation of the in-use emissions performance of four different heavy-duty diesel engines certified to the MY 2010 or interim MY 2010 NO x standards over a wide range of driving conditions in California in a paper published in the ACS journal Environmental Science & Technology.

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Michigan State University Receives $2.5M ARPA-E Award to Build Wave Disc Engine/Generator for Series Hybrid Applications

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The WDG also can reduce carbon dioxide emissions by as much as 95 percent in comparison to modern internal combustion vehicle engines. In axial-flow configurations, noted Müller and co-authors in a 2004 paper, pure scavenging is a challenging task. Source: Piechna, 2004. Norbert Müller. The Wave Disc Engine. Piechna et al.

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California ARB Seeks Further Reductions of Diesel Emissions at State Rail Yards

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The California Air Resources Board directed its staff to take steps to provide further locomotive and rail yard emission reductions beyond those achieved by existing US Environmental Protection Agency and state regulations and agreements. While we are pleased to have already reduced diesel emissions at the rail yards, it’s not enough.

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