article thumbnail

NREL updates experimental cetane number data; more than 250 new individual measurements

Green Car Congress

This version of the compendium, which includes all available single-compound cetane number data found in the scientific literature published prior to March 2014, contains cetane values for 388 pure compounds, including 187 hydrocarbons and 201 oxygenates. Murphy (2014) Compendium of Experimental Cetane Numbers (NREL/TP-5400-61693).

article thumbnail

Mazda announces SKYACTIV-X: gasoline Spark Controlled Compression Ignition

Green Car Congress

In 2014, Mazda said that it was planning a second generation of SkyActiv gasoline engines around 2020 that would achieve approximately 30% better fuel economy than production SKYACTIV engines using a form of homogenous charge compression ignition (HCCI) (see Yamasaki et al. the greatest contribution to reducing carbon dioxide emissions.

Mazda 186
article thumbnail

KCL study finds London air pollution from traffic improving, but continues to exceed limits in many parts of city

Green Car Congress

The study, published as an open-access paper in the journal Environmental Pollution , examined trends in air pollution over a ten-year period spanning 2005 to 2014, using data collected from 65 roads. Overall, there was a decrease in total traffic between 2005 and 2014, mainly explained by the reduction in cars and taxis.

London 150
article thumbnail

Ford introduces second-generation 6.7L Power Stroke V8 Diesel for F-Series Super Duty; Gen 1 hits 500,000 mark

Green Car Congress

Other benefits include cleaner emissions and a reduction in the buildup of fuel deposits on the valves over time. liter Power Stroke V8 turbo diesel engine was installed into a new 2014 Ford Super Duty F-350 Lariat at Kentucky Truck Plant. The pump’s cam stroke is increased to deliver more fuel when desired for increased power.

Diesel 286