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Design and Optimization of Multi-component Fuel for Fuel Concentration Measurement by Using Tracer PLIF in SI Engine
Technical Paper
2010-01-0344
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A method to design a feasible multi-component fuel for fuel concentration measurements by using PLIF was developed based on thermal gravity (TG) analysis and vapor-liquid equilibrium (VLE) calculations. Acetone, toluene, and 1,2,4-trimethylbenzene were respectively chosen as tracers for the light, medium, and heavy components of gasoline. A five-component test fuel was designed for LIF measurement, which contains
n
-pentane (light), isooctane,
n
-octane (medium),
n
-nonane and
n
-decane (heavy). The TG analysis and VLE calculation were used to ensure that the fuel had volatility similar to real gasoline and that all the tracers had a good coevaporation ratio. The fully optimized results of the six-component fuel and the disadvantages of this case are discussed. The results indicated that optimization based on the six-component fuel, which included C4 compounds such as
n
-butane, controlled acetone's coevaporation ratio. However, using a C4 alkane as a representative of light components resulted in a low boiling point, and thus the mixture could not be used conveniently. Taking into account the improvement in the coevaporation ratio by using
n
-pentane, the five-component test fuel was recommended. A validation experiment was carried out in a constant-volume vessel by using the five-component test fuel. Normalized fuel concentration distributions within the available area indicated that the three tracers, light, medium, and heavy, show difference in evaporating.
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Citation
Ma, X., He, X., Wang, J., and Shuai, S., "Design and Optimization of Multi-component Fuel for Fuel Concentration Measurement by Using Tracer PLIF in SI Engine," SAE Technical Paper 2010-01-0344, 2010, https://doi.org/10.4271/2010-01-0344.Data Sets - Support Documents
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