2000, Alternative Fuels, Downsizing and Exhaust

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2000

Alternative Fuels

Downsizing

Exhaust

Researchers propose evaluating alt fuel efficiency based on energy rather than volume; impact of ethanol on vehicle efficiency and GHGs

Green Car Congress

MAY 17, 2013

In a policy analysis in the ACS journal Environmental Science & Technology , researchers from the Universities of Cambridge, Exeter and Oxford argue that, due to the increased emphasis on alternative fuels with drastically differing energy densities, vehicle efficiency should be evaluated based on energy rather than volume.

Fuel

Fuel Energy Gasoline-Electric Gasoline

Lotus Omnivore Engine Shows Up To 10% Better Fuel Economy Than Spray-Guided GDI Engines; Achieves HCCI At Extremely Light Loads

Green Car Congress

DECEMBER 10, 2009

At 2000 rpm and up to approximately 2.7 bar IMEP (Indicated Mean Effective Pressure), the ISFC (Indicated Specific Fuel Consumption) achieved is approximately 10% better than current spray-guided direct injection, spark ignition engines. Displacement. Compression ratio. Porting arrangement.

Fuel Economy

Fuel Economy Engine Light Fuel

EV Driven

Researchers propose evaluating alt fuel efficiency based on energy rather than volume; impact of ethanol on vehicle efficiency and GHGs

Lotus Omnivore Engine Shows Up To 10% Better Fuel Economy Than Spray-Guided GDI Engines; Achieves HCCI At Extremely Light Loads

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