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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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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 GM is collaborating with the national labs and universities, and has seen successful HCCI all the way up to 16 bar BMEP—a very high load.

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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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