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Study finds “markedly” high levels of diesel exhaust present in commuter trains powered by locomotives in pull-mode

Green Car Congress

Diesel-powered commuter trains may expose their passengers to elevated levels of certain black carbon and ultrafine particles, especially in the coach directly behind the locomotive, according to a new study from researchers at the University of Toronto. A paper on the study is published in the journal Atmospheric Environment. 2017.02.015.

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Study finds total greenhouse gas footprint of blue hydrogen “quite high” due to fugitive methane

Green Car Congress

While carbon dioxide emissions are lower, fugitive methane emissions for blue hydrogen are higher than for gray hydrogen because of an increased use of natural gas to power the carbon capture. For our default assumptions (3.5% —Howarth and Jacobson.

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Fraunhofer researchers developing ammonia-based systems for mobile energy in infrastructure, transportation and industry

Green Car Congress

An alternative to fossil fuels is power-to-X fuels, which are synthesized from electrolysis-based hydrogen. The most important power-to-X fuel is currently hydrogen itself. In comparison to hydrogen, liquefied ammonia makes it easier to transport large volumes to wherever it is needed.

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Porsche releases a ‘sporty’ electric motorbike, but there’s a catch

Electrek

When it comes to motorbikes, there’s simply no comparison. Electric motorcycles and scooters crush their combustion engine-powered cousins in performance.

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Study finds total PM10 emissions from EVs equal to those of modern ICEVs; role of weight and non-exhaust PM

Green Car Congress

A new study by a team from the University of Edinburgh and independent engineering company INNAS BV has found that, when factoring in the additional weight and non-exhaust PM factors, total PM 10 emissions from electric vehicles (EVs) are equal to those of modern internal combustion engine vehicles (ICEVs). Click to enlarge.

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Porsche simulates hydrogen V8 for virtual Nordschleife run; 440 kW, 261 km/h, near-zero NOx

Green Car Congress

We have therefore developed a hydrogen combustion engine that aims to match the power and torque of current high-performance gasoline engines as a concept study. On the other hand, however, the lower exhaust gas temperatures result in a lack of energy for their propulsion on the exhaust side. Comparison of turbocharging systems.

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Mercedes begins sales of new 6-cylinder GLE diesel; first SUV in its class to meet Euro 6d

Green Car Congress

Certification in accordance with the Euro 6d standard (RDE stage 2) not prescribed for new models until 1 January 2020 is possible due to measures including extended exhaust gas aftertreatment with an additional underbody SCR catalytic converter including ammonia slip catalyst (ASC) in the underbody.

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