Remove Diesel Remove Emissions Remove Exhaust Remove Fuel
article thumbnail

Optimized heavy-duty CI engine fueled with DME delivers diesel performance, significantly reduces engine-out emissions

Green Car Congress

A team from Empa - Swiss Federal Laboratories for Materials Science and Technology and FPT Motorenforschung reports in an open-access paper in the journal Fuel on the performance and emission characteristics of an 11-liter heavy-duty compression ignition engine which was optimized specifically for DME (dimethyl ether) combustion.

Engine 368
article thumbnail

New Emissions Analytics study suggests pollution from tire wear now 1,850 times worse than exhaust emissions

Green Car Congress

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 ). —Emissions Analytics. Quoting such ratios, however, needs careful interpretation.

Exhaust 539
article thumbnail

SwRI engineers develop near-zero emissions diesel engine technology; 90% reduction of NOx

Green Car Congress

Southwest Research Institute engineers have developed the next generation of clean diesel engine technology to reduce hazardous nitrogen oxides (NO x ) and carbon dioxide emissions while minimizing fuel consumption. g/hp-hr NO x emissions). g/hp-hr NO x emissions).

Engine 545
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. Hardware-in-the-loop test bench for the qualification of the liquefied gas dimethyl ether as a fuel.

Diesel 367
article thumbnail

SwRI CAT-DEF reduces heavy-duty diesel emissions to meet CARB 2027 NOx requirements

Green Car Congress

CAT-DEF—Catalyzed Diesel Exhaust Fluid—is an SwRI-developed catalyst- and surfactant-modified diesel exhaust fluid (DEF) solution. The internally funded advancement successfully reduced heavy-duty diesel engine nitrogen oxide (NO x ) emissions to meet the California Air Resources Board (CARB) 2027 standards.

Diesel 284
article thumbnail

SwRI engineers help develop post-refinery diesel treatment that overcomes soot/NOx tradeoff for cleaner burning fuel

Green Car Congress

Southwest Research Institute (SwRI) is helping a client develop a simple post-refinery treatment process that reduces exhaust emissions from diesel engines by overcoming the soot/nitrogen oxides (NO x ) reduction trade-off that has plagued engine researchers for decades.

Cleaner 321
article thumbnail

UK researchers report that alcohols in windshield washer fluid are major unreported source of VOCs emissions from cars, including EVs

Green Car Congress

In a recent open-access paper published in ACS’ Environmental Science & Technology , researchers from the University of York report that alcohols in windshield washer fluid account for a larger fraction of real-world vehicle emissions than previous estimates have suggested. Cliff et al. —Cliff et al.

Emissions 397