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Measurement of nitric oxide concentration in a spark-ignition engine using degenerate four-wave mixing

Abstract:

The measurement of in-cylinder, combustion-generated nitric oxide using degenerate four-wave mixing (DFWM) in a firing, methane-fueled research engine is reported. An optical arrangement for producing DFWM in the forward geometry is described that results in reliable signal generation with excellent signal-to-noise ratio from the skip-fired engine. DFWM signals from temperature-insensitive lines were used to infer variations in NO concentration at the end of the expansion stroke at exhaust va...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Atomic and Laser Physics
Role:
Author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Engineering Science
Role:
Author
Journal:
COMBUSTION AND FLAME
Volume:
148
Issue:
4
Pages:
223-233
Publication date:
2007-03-05
DOI:
ISSN:
0010-2180
URN:
uuid:6a279522-8eb4-4db8-a580-ab6aa3d957c5
Source identifiers:
28253
Local pid:
pubs:28253
Language:
English
Keywords:

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