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New split-cycle concept to control diesel HCCI combustion

Green Car Congress

A team from Universita degli Studi di Pisa (Italy) and Rolf Reitz at the University of Wisconsin-Madison are proposing a novel combustion concept—Homogenous Charge Progressive Combustion (HCPC)—based on a split-cycle principle to control HCCI combustion in diesel-fueled engines. Combustor Compressor. Displacement.

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DOE to award $55.8M for advanced vehicle technologies; $35M for fuel cell and hydrogen

Green Car Congress

The component materials must be capable of being manufactured at a lower cost and with a smaller environmental footprint when compared to present technologies. Increased efficiency may be achieved using one or more proposed enabling technologies on a baseline engine. turbomachinery. turbomachinery.

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Motiv Engines introduces 2nd-generation split-cycle concept; MkII Clarke-Brayton heavy-duty engine being designed for LNG

Green Car Congress

This is a major step toward our goal of building the most efficient engine in the world for trucks, automobiles and power generation. The improvement in efficiency and the use of natural gas makes this engine a natural fit to meet the upcoming greenhouse gas emissions regulations while reducing costs for operators. Graves, R.

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

Green Car Congress

Achates Power, which is developing a family of two-stroke, compression-ignition (CI) opposed-piston (OP) engines, has designed and is developing a light-duty diesel concept engine, the OP4. liter OM651 Euro 5 engine, said Fabien Redon VP, Technology Development at Achates Power, the OP4 design shows a modeled 13.5%

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ORNL Researchers Find Thermochemical Exhaust Heat Recuperation In Internal Combustion Engines Could Provide Substantial Boosts in Second-Law Efficiency

Green Car Congress

The extremely low flammability limit of hydrogen can also be used to extend the lean combustion limit, which can increase expansion work and reduce emissions. TCR is particularly relevant to alcohol-based engine fuels, because combustion exergy losses for direct combustion of alcohols are typically higher than for alkanes and alkenes.

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Liquid Air Energy Network forms in UK; focus on transportation and energy storage

Green Car Congress

The UK Centre for Low Carbon Futures published a multi-partner research report— Liquid Air in the energy and transport systems: Opportunities for industry and innovation in the UK —and presented the results at a a conference at the Royal Academy of Engineering in London. High efficiency internal combustion engine.

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LiquidPiston introduces latest X-series version of HEHC rotary engine; targeting 58% peak BTE, 2 hp/lb power density

Green Car Congress

(LPI), the developer of engines based on its High Efficiency Hybrid Cycle (HEHC)( earlier post ), introduced the latest version of its X-series of rotary engines embodying HEHC at the US Department of Energy’s (DOE) 2012 Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Dearborn, Michigan.

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