Studies of O(¹D) and HO₂ Kinetics in Plasma Assisted Low Temperature Fuel Oxidation Using Mid Infrared Faraday Rotation Spectroscopy

O(¹D) reactions with fuels and HO₂ reactions with fuel radicals are the most important reaction channels of low temperature plasma assisted combustion and fuel oxidation. In this lecture, the in situ diagnostics of O(¹D), O₂(¹Δ), and HO₂ reaction kinetics using mid infrared laser absoprtion method, Integrated Cavity Output Spectroscopy (ICOS), and Faraday Rotational Spectroscopy (FRS) in a flow reactor will be presented. Time dependent in situ measurements of O(¹D) and HO₂ in a photolysis reactor will be introduced. By using this approach, the direct measurements of reaction rates and branching ratios of O(¹D) with methanol and ethanol will be discussed. In addition, by using the experimental data, the development and validation of kinetic models for plasma assisted fuel pyrolysis and oxidation of n-alkanes will be presented.