Cycle-resolved NO data were acquired from a Cooper-Bessemer GMV 4TF two-stroke engine to better understand and quantify large bore natural gas engine emission. The cycle resolved NO data were extracted separately from the engine’s cylinder two and four exhaust ports and taken simultaneously with cycle resolved pressure traces, conventional steady-state emission measurements and a variety of additional performance and diagnostic data. The test variables were intake manifold boost pressure, ignition method and ignition timing. Relationships between individual cycle pressure traces and the NO produced by that cycle were investigated. Furthermore, mass-averaged NO values were calculated and integrated in order to compare with average exhaust emissions from a steady-state analyzer and combustion pressure characteristics. The steady measurements revealed that NO and emissions respond differently to the test variables. The mass averaged cycle-resolved NO values compare well with the steady exhaust emission measurements and exhibit strong correlations with peak pressure and crank angle location of peak pressure.
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April 2004
Technical Papers
Cycle-Resolved NO Measurements in a Two-Stroke Large-Bore Natural Gas Engine
Paulius V. Puzinauskas,
Paulius V. Puzinauskas
Mechanical Engineering Department, U.S. Naval Academy, 590 Holloway Road, Annapolis, MD 21402
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Daniel B. Olsen,
Daniel B. Olsen
Engines and Energy Conversion Laboratory, Mechanical Engineering Department, Colorado State University, Fort Collins, CO 80523
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Bryan D. Willson
Bryan D. Willson
Engines and Energy Conversion Laboratory, Mechanical Engineering Department, Colorado State University, Fort Collins, CO 80523
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Paulius V. Puzinauskas
Mechanical Engineering Department, U.S. Naval Academy, 590 Holloway Road, Annapolis, MD 21402
Daniel B. Olsen
Engines and Energy Conversion Laboratory, Mechanical Engineering Department, Colorado State University, Fort Collins, CO 80523
Bryan D. Willson
Engines and Energy Conversion Laboratory, Mechanical Engineering Department, Colorado State University, Fort Collins, CO 80523
Contributed by the Internal Combustion Engines Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received by the ICE Division July 2002; final revision received January 2003. Associate Editor: D. Assanis.
J. Eng. Gas Turbines Power. Apr 2004, 126(2): 429-441 (13 pages)
Published Online: June 7, 2004
Article history
Received:
July 1, 2002
Revised:
January 1, 2003
Online:
June 7, 2004
Citation
Puzinauskas, P. V., Olsen , D. B., and Willson, B. D. (June 7, 2004). "Cycle-Resolved NO Measurements in a Two-Stroke Large-Bore Natural Gas Engine ." ASME. J. Eng. Gas Turbines Power. April 2004; 126(2): 429–441. https://doi.org/10.1115/1.1635401
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