Abstract
Laser induced fluorescence is used to develop a 2D measurement technique for mixture formation analysis of fuel and air in a broad temperature regime from 398 K up to 548 K. The measurement principle is called FARLIF (fuel-air ratio by laser-induced fluorescence). Its application is tested on the tracer toluene in the non-fluorescent model fuel isooctane as well as on an auto-fluorescing near-standard gasoline. A frequency quadrupled double-pulse Nd:YAG laser at 266 nm is used for excitation while the fluorescence is detected by an intensified double-frame CCD camera. The double-frame images are used for analysis of the mixture motion. For elevated temperatures the FARLIF signal shows a temperature dependence. Therefore, a correction mechanism is suggested.
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Rotter, F. et al. (2009). Simultaneous, Planar Determination of Fuel/Air Ratio and Velocity Field in Single Phase Mixture Formation Processes. In: Nitsche, W., Dobriloff, C. (eds) Imaging Measurement Methods for Flow Analysis. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 106. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-01106-1_17
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DOI: https://doi.org/10.1007/978-3-642-01106-1_17
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