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ORNL Research Project Seeks to Boost Combustion Engine Efficiency To 50-60% By Reducing Combustion Irreversibility; RAPTR

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ORNL is working with a number of university partners (Texas A&M University, University of Wisconsin, Illinois Institute of Technology, University of Alabama, University of Michigan, Dearborn) on the project, as well as Delphi on the catalyst side, a not-for-profit R&D institution, and an unnamed OEM.

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Chilled Ammonia Pilot Project Captures 90% of CO2

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A pilot project by We Energies, Alstom and The Electric Power Research Institute (EPRI) testing an Alstom advanced chilled ammonia process ( earlier post ) has demonstrated more than 90% capture of carbon dioxide from the flue stream of a coal-fueled power plant in Wisconsin (the Pleasant Prairie Carbon Capture Pilot Plant ).

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GMs HCCI Demonstrator Combines a Set of Enabling Technologies and Strategies for Extending Operating Range

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(Najt, then at the University of Wisconsin, and David Foster published the first study of a gasoline-fueled four-stroke HCCI engine in 1983.). Then in the Spring of 2008.we we demonstrated to the press idle to 55 mph. Downsides to this approach include combustion stability and NO x emissions.

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GM exploring different valving strategies to extend HCCI operation for high loads; benefits of a Positive Valve Overlap approach

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To extend HCCI to idle (shown in 2008, earlier post ), GM is using a Multiple Injection and Multiple Ignition (MIMI) strategy, combined with the use of in-cylinder fuel reforming during recompression as a bridge technique up to the classic HCCI operating range. Peak valve lift of intake and exhaust valves was varied based on the strategy.

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Perspective: Regional Greenhouse Gas Cap-and-Trade Programs May be the Solution

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The first auction for allowances was held on September 25, 2008. Since September 2008, RGGI has raised $583 million for the states in these quarterly auctions of permits with between 65 and 70 percent of cap-and-trade proceeds going back into the clean energy economy. The program then reduces the cap by 2.5 Another six U.S.

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