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SwRI develops D-EGR demonstrator highlighting fuel-efficient, cost-effective engine; 10% and above fuel economy improvements

Green Car Congress

D-EGR is an engine and control concept that combines fuel reforming to produce hydrogen with high levels of exhaust gas recirculation (EGR) to achieve very high levels of thermal efficiency. liter engine running as a full D-EGR engine from idle to full load, delivering more than 42% brake thermal efficiency with ultra-low exhaust emissions.

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Small-displacement two-stroke H2 engine could address performance and emissions cost-effectively for recreational market; potential for Asian motor vehicle fleet

Green Car Congress

This is due to raw, externally premixed fresh charge comprising air, fuel and lube oil being short-circuited into the exhaust during the scavenging process. The lost available energy also results in poor off-design point fuel efficiency. Everything else—pistons, porting and crankcase, bearings, exhaust, etc.—were

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ARB researchers evaluate in-use heavy-duty NOx aftertreatment systems, find elevated levels during certain lower-temperature operations

Green Car Congress

One of the trucks was equipped with exhaust gas recirculation (EGR); three were equipped with EGR and a selective catalytic reduction (SCR) device. EGRs were primarily introduced for on-road heavy-duty diesel engines over a decade ago to meet the tighter MY 2004 NO x standard (2 g/bhp-hr). high purity urea and 67.5%

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Fairbanks Morse Engine and Achates Power team up on opposed-piston engines

Green Car Congress

In the early 1990s, Fairbanks Morse Engine introduced dual-fuel combustion technology that reduced NO x exhaust emissions to levels previously achievable with only lean-burn spark-ignited gas engines. Enviro-Design technology is available with the company’s Opposed Piston, FM-MAN 32/40 DF, and the Colt-Pielstick PC2.5/6

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BMW Outlines Intelligent Heat Management Applications for Reducing Fuel Consumption and CO2; New Thermoelectric Generator Unit Integrated with EGR

Green Car Congress

The remaining two-thirds are lost as waste heat going into the environment through the car’s exhaust emissions and through the radiator. Making some of that waste heat energy available through intelligent heat management offers significant potential for reducing fuel consumption and CO 2 emissions, BMW said.

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Achates Power developing light-duty two-stroke opposed-piston diesel engine: the OP4

Green Car Congress

Founded in 2004, Achates Power is designing and developing engines based on a two-stroke, opposed-piston, compression-ignition technology. Exhaust temperature of the OP4 was 410 °C, compared to 246 °C for the baseline; the rate of exhaust enthalpy for the OP4 was 9.0 Source: Achates Power. Click to enlarge. Background.

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Norway-US Project Developing Diesel/Biodiesel, Cool Flame Reformer and Solid-Acid Fuel Cell APU

Green Car Congress

Due to the unit’s high efficiency, CO 2 emissions are substantially lower than in conventional combustion engines, and no other demonstrable exhaust is discharged—i.e., This allows SAFCell stacks to run more easily on commercially available gas fuels (e.g., The reformer converts hydrocarbons into hydrogen, CO 2 and heat.

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