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Optimized heavy-duty CI engine fueled with DME delivers diesel performance, significantly reduces engine-out emissions

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A team from Empa - Swiss Federal Laboratories for Materials Science and Technology and FPT Motorenforschung reports in an open-access paper in the journal Fuel on the performance and emission characteristics of an 11-liter heavy-duty compression ignition engine which was optimized specifically for DME (dimethyl ether) combustion.

Engine 368
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New Emissions Analytics study suggests pollution from tire wear now 1,850 times worse than exhaust emissions

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In early 2020, UK-based independent testing firm Emissions Analytics published a study claiming that tire particulate wear emissions were 1,000 times worse than exhaust emissions ( earlier post ). —Emissions Analytics. Quoting such ratios, however, needs careful interpretation.

Exhaust 539
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AECC presents zero-impact emissions demonstrator car at Vienna Motor Symposium

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The European Association for Emissions Control by Catalyst (AECC) presented its zero-impact emissions demonstrator car at the Vienna Motor Symposium, 27-29 April. At the same time, Well-to-Wheel (WtW) CO 2 emissions are substantially reduced by running the vehicle on an e-fuel. Resources.

Emissions 435
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CARB approves updated regulations requiring most new small off-road engines be zero emission by 2024

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The California Air Resources Board approved a measure that will require most newly manufactured small off-road engines (SORE) such as those found in leaf blowers, lawn mowers and other equipment be zero emission starting in 2024. Older models on store shelves can also be purchased even if they are gasoline-powered.

Emissions 305
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EPA grants waivers for California’s on-highway heavy-duty vehicle and engine emission standards

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The US Environmental Protection Agency (EPA) is granting two waivers of preemption regarding four California Air Resource Board (CARB) regulations related to California’s heavy-duty vehicle and engine emission standards. In this instance, CARB requested two waivers for regulations relating to heavy duty vehicles and engines.

EPA 210
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Neste charters two new lower-emission tankers from Terntank; methanol and sails

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Neste has signed an agreement to charter two new lower-emission product tankers from Terntank. The tankers are designed with foldable suction sails and dual-fuel engine enabling the use of e-methanol as fuel, which is produced with Power-to-X technology using captured carbon and renewable energy.

Emissions 300
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BIT team develops optimal control strategy for hydrogen engine; near-zero NOx with high power and BTE

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direct-injection hydrogen engines that delivers near-zero emissions with high power and high brake thermal efficiency. Direct-injection (DI) hydrogen engines can generate high power with high thermal efficiency and a low risk of abnormal combustion. A paper on their work is published in the journal Fuel.

Hydrogen 186