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A comprehensive combustion chemistry study of n- propylcyclohexane

机译:A comprehensive combustion chemistry study of n- propylcyclohexane

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摘要

Alkylated cycloalkanes are vital components in gasoline, aviation, and diesel fuels; however, their combustionchemistry has been less investigated compared to other hydrocarbon classes. In this work, thecombustion kinetics of n-p ropylcyclohexane ( n- Pch) was studied across a range of experiments includingpressurized flow reactor (PFR), jet stirred reactor (JSR), shock tube (ST), and rapid compression machine(RCM). These experiments cover a wide range of conditions spanning low to intermediate to high temperatures,low to high pressures at lean to rich equivalence ratios. Stable intermediate species were measuredin PFR over a temperature range of 550–850 K, pressure of 8.0 bar, equivalence ratio ( ?) of 0.27,and constant residence time of 120 ms. The JSR was utilized to measure the speciation during oxidationof n- Pch at ? of 0.5–2.0, at atmospheric pressure, and across temperature range of 550–800 K. Ignitiondelay times (IDTs) for n- Pch were measured in the RCM and ST at temperatures ranging from 650 to1200 K, at pressures of 20 and 40 bar, at ? = 0.5 , 1.0 . In addition, a comprehensive detailed chemicalkinetic model was developed and validated against the measured experimental data. The new kineticmodel, coupled with the breadth of data from various experiments, provides an improved understandingof n- Pch combustion.

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