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Korean team develops 2L-class direct-injection hydrogen-fueled engine

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Additionally, the hydrogen engine emits NO x of less than 15 ppm even without an aftertreatment system that purifies exhaust gases, achieving a high thermal efficiency of up to 40%. 2022.04.274

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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 ). As a result, distance-specific mass and number emissions can be derived, which can then be compared to equivalent tire metrics.

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Daimler conducting internal investigation over exhaust emissions certification process in the US

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Daimler AG announced that it is conducting an internal investigation regarding its certification process related to exhaust emissions in the United States upon the request of the US Department of Justice (DOJ). Daimler said it is cooperating fully with the authorities.

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Mercedes-Benz introducing A- and B-Class plug-in hybrid models

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Benz Cars is introducing plug-in hybrids under the EQ Power label in the A- and B-Class. Top speed 140 km/h (electric)/235 km/h (total; A-Class Compact Saloon). seconds (A-Class Compact Saloon) Hardly any restrictions on the load compartment. It uses a permanently excited synchronous machine as an internal rotor.

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International consortium working on new sensor technology to measure real-world, in-use vehicle emissions

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As part of the Horizon 2020 research project CARES (City Air Remote Emission Sensing), an international research consortium is working on new contactless exhaust measurement methods that will enable municipalities to take emission-reducing measures. ICCT (International Council on Clean Transportation; DE). Airyx Gmbh (DE).

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The importance of considering non-exhaust traffic emissions; the role of EVs

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the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. However, there is more than 15 years of research showing that the contribution of non-exhaust primary particles to the total traffic generated primary particles is significant in urban areas. Further, a 2013 review by Denier van der Gon et al. Background.

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Westport and Scania preliminary testing shows H? HPDI delivers peak BTE of 51.5% at mid-load

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HPDI fuel system as applied to the Scania 13-Liter CBE1 platform, Scania’s next-generation, best-in-class engine intended for Euro VII on-highway emission standards. Scania’s engine fulfils the strictest exhaust emission requirements with low fuel consumption and high torque. Hydrogen use in an internal combustion engine with the H?

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