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Impact of Fluorescence Tracers on Combustion Performance in Optical Engine Experiments
Technical Paper
2004-01-2975
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
For applications of planar laser induced fluorescence (PLIF) to measure the fuel or equivalence ratio distributions in internal combustion (IC) engines it is typically assumed that the addition of a fluorescence tracer to a base fuel does not alter the combustion performance. We have investigated the impact on combustion performance through the addition of various amounts of 3-pentanone or toluene to iso-octane fuel. Correlations between equivalence ratio for a range of fuel/tracer mixtures and engine parameters, like peak pressure, location of peak pressure, indicated mean effective pressure (IMEP), and peak burn rate are discussed for data obtained in a spark-ignition direct-injection (SIDI) gasoline engine operated with near homogeneous charge. For typical tracer concentrations the impact on combustion performance is mostly negligible. PLIF imaging for operation with fuel/tracer mixture of the same equivalence ratio (iso-octane with 3-pentanone or toluene) show identical behavior for flame propagation within scatter.
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Citation
Zhang, R., Wermuth, N., and Sick, V., "Impact of Fluorescence Tracers on Combustion Performance in Optical Engine Experiments," SAE Technical Paper 2004-01-2975, 2004, https://doi.org/10.4271/2004-01-2975.Also In
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