Remove Comparison Remove Exhaust Remove Oil Remove Power
article thumbnail

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. —Howarth and Jacobson. Carbon dioxide equivalent emissions of fugitive, unburned methane are shown in red. The methane leakage rate is 3.5%.

Hydrogen 414
article thumbnail

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.

Diesel 326
article thumbnail

Mercedes-Benz Trucks boosts power, lowers emissions and fuel consumption with latest generation OM 470 engine

Green Car Congress

Mercedes-Benz is also introducing a new top-of-the-range variant with a power output of 335 kW (456 hp). All the heavy-duty engines benefit from new low-friction engine oils. hp/l) and specific torque of 206 N·m/l, the OM 470 is one of the most powerful engines in its size category. With a specific output of 31.4

Mercedes 150
article thumbnail

MAHLE developing portfolio of solutions for fuel cell drives in commercial vehicles

Green Car Congress

Promising avenues include weight savings and extension of the cruising range in comparison with battery-powered solutions; fuel cell concepts may represent an attractive option for long-distance hauling, which requires heavy loads and large cruising ranges. Fuel cells are also sensitive to oil admixtures. Exhaust pathway.

article thumbnail

A closer look at the basics of Volkswagen Group’s important new 2.0L diesel MDB engine

Green Car Congress

liter diesel, prominently showing the closely attached exhaust aftertreatment system. The MQB allows the integration of alternatives, for example, natural gas, hybrid and electric drives, in addition to the conventional gasoline and diesel power units. The dual oil and vacuum pump unit. Oil and vacuum pump. The EA288 2.0-liter

Diesel 384
article thumbnail

Study finds biodiesel from algae, yeast and bacteria can displace both petroleum diesel and soybean biodiesel

Green Car Congress

Biodiesel (fatty acid methyl ester) derived from oleaginous microbes—microalgae, yeast, and bacteria—can effectively displace both petroleum diesel and biodiesel produced from plant oils, according to the findings of a new study by a team from Utah State University. Plant-based oils, commonly used to produce biodiesel (e.g.,

Diesel 316
article thumbnail

Mercedes-Benz powering ahead with €3B strategic engine initiative; increasing electrification, 48V; diesel and gasoline; cylinder deactivation

Green Car Congress

The new six-cylinder in-line engine comes with an intelligent form of turbocharging: assisted by the ISG at start-off, the electric auxiliary compressor (eZV) guarantees immediate high torque when driving off and accelerating, bridging the time before the large exhaust turbocharger cuts in. Most powerful passenger-car diesel engine: OM 656.

Gasoline 150