One promising technique for increasing the efficiency of combustion engines is to perform the reaction at extremely high compression ratios. To manage significantly higher temperatures and pressures, a new engine architecture is required. In addition, critical questions must be answered to address feasibility of operating at these extreme states. To investigate these questions, a single-shot, free-piston laboratory device was built, capable of achieving combustion at compression ratios of 100:1 and greater. This paper quantifies the combined heat- and mass-transfer losses present during air-compression experiments. Since these air-compression losses are also present during combustion experiments, quantifying these baseline operating losses, independent from additional losses during combustion, will help in assessing feasibility of the overall strategy as well as in identifying specific strategies for achieving higher efficiencies.
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ASME 2009 International Mechanical Engineering Congress and Exposition
November 13–19, 2009
Lake Buena Vista, Florida, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-4376-5
PROCEEDINGS PAPER
Reducing Combustion Irreversibility Through Extreme Compression: Analyzing Device Performance
Shannon L. Miller,
Shannon L. Miller
Stanford University, Stanford, CA
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Matthew N. Svrcek,
Matthew N. Svrcek
Stanford University, Stanford, CA
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Joseph N. Wilson, Jr.,
Joseph N. Wilson, Jr.
Stanford University, Stanford, CA
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Olivier LaCroix,
Olivier LaCroix
Stanford University, Stanford, CA
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Christopher F. Edwards
Christopher F. Edwards
Stanford University, Stanford, CA
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Shannon L. Miller
Stanford University, Stanford, CA
Matthew N. Svrcek
Stanford University, Stanford, CA
Joseph N. Wilson, Jr.
Stanford University, Stanford, CA
Olivier LaCroix
Stanford University, Stanford, CA
Christopher F. Edwards
Stanford University, Stanford, CA
Paper No:
IMECE2009-10898, pp. 239-248; 10 pages
Published Online:
July 8, 2010
Citation
Miller, SL, Svrcek, MN, Wilson, JN, Jr., LaCroix, O, & Edwards, CF. "Reducing Combustion Irreversibility Through Extreme Compression: Analyzing Device Performance." Proceedings of the ASME 2009 International Mechanical Engineering Congress and Exposition. Volume 3: Combustion Science and Engineering. Lake Buena Vista, Florida, USA. November 13–19, 2009. pp. 239-248. ASME. https://doi.org/10.1115/IMECE2009-10898
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