article thumbnail

Study finds Tula dDSF software reduced NOx 41% and CO2 9.5% in Leibherr D966 diesel

Green Car Congress

At the International Engine Congress in Baden-Baden (Germany), Liebherr-Components AG and US-based Tula Technology presented the results of their joint study on heavy machinery. 6-cylinder diesel engine, will also be used in further tests. Liebherr D966 inline engine tested with Tula’s diesel Dynamic Skip Fire software.

Diesel 259
article thumbnail

New study shows a rapid increase of diesel-fueled backup generators across California

Green Car Congress

New research by economic and public policy consulting group M.Cubed finds a proliferation of backup generators across California, with nearly 90% being diesel-fueled, posing significant obstacles to achieving greenhouse gas reduction targets and driving nearly $136 million in annual health costs. Of these, 20,907 are diesel-fueled.

Diesel 480
article thumbnail

Study links exposure to diesel exhaust particles to pneumococcal disease susceptibility

Green Car Congress

Researchers from the University of Liverpool, Queen Mary University, London and Trinity College Dublin have linked exposure to diesel exhaust particles (DEPs) to susceptibility to pneumococcal disease. Many of these fatalities have been linked to exposure to high levels of airborne particulates, such as diesel exhaust particles (DEPs).

Exhaust 341
article thumbnail

Research consortium investigating use of DME blends in diesels with minimal retrofitting

Green Car Congress

A research consortium led by Ford Research and Innovation Center Aachen is currently investigating the technical conditions under which diesel vehicles can run on dimethyl ether (DME) as an alternative fuel. With dynamic blending, even flex-fuel operation (diesel or DME/diesel) would be possible while retaining the original diesel system.

Diesel 367
article thumbnail

Study on effects of ammonia-diesel blends in CI engines

Green Car Congress

An international team from the Middle East has investigated the characteristics of diesel engines powered by petroleum diesel fuel blended with different volumetric percentages of aqueous ammonia. Since 40%, 50%, and 60% of NH 4 OH have lower heating values than diesel, BSFC is reduced by 7.15, 10.4%, and 15.38%, respectively.

Diesel 199
article thumbnail

Cummins and Tula study of Diesel Dynamic Skip Fire (dDSF) shows 74% reduction in NOx, 5% in CO2 on low load cycle

Green Car Congress

a leader in propulsion efficiency, announced at SAE International’s WCX the results of their collaborative study on the effectiveness of Tula’s diesel Dynamic Skip Fire (dDSF) in reducing nitrogen oxides (NO x ) and carbon dioxide (CO 2 ) emissions on a Cummins X15 HD Efficiency Series diesel engine. Cummins Inc. Earlier post.).

Diesel 370
article thumbnail

Study finds propane school buses significantly decrease NOx emissions compared to diesel

Green Car Congress

According to a study commissioned by the Washington, DC-based Propane Education & Research Council (PERC), NO x emissions measured from propane autogas school buses were substantially lower than those measured from diesel school buses. For the stop-and-go route, NO x emissions were 34 times higher for the diesel school bus.