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A comprehensive experimental and modelling study of the ignition delay time (IDT) characteristics of some single prominent C1-C2 hydrocarbons including methane, ethane, and ethylene have been performed over a wide range of temperatures (~800-2000 K), pressures (~1-80 bar), equivalence ratios (~0.5-2.0), and dilutions (~75-90%). An extensive literature review was conducted, and available data were extracted to create a comprehensive database used in our simulations. Based on existing literature data, an experimental matrix was designed using the Taguchi approach (L9) in order to identify and complete the experimental matrix required to generate a comprehensive validation set necessary for validation of a chemical kinetic model. The required IDTs were recorded using a high-pressure shock tube for shorter IDTs and a rapid compression machine for longer times, which encompass high-and low-temperature ranges, respectively. The predictions of a C 3 -NUIG mechanism have been compared with all of the available experimental data including those from the current study using the IDT simulations and the correlation technique. Moreover, individual and total effects of the studied parameters including pressure, equivalence ratio, and dilution on IDT have been studied over a wide temperature range. Moreover, correlations which were developed based on the NUIG mechanism are presented for each specific fuel over the conditions studied. These correlations show acceptable performance versus the experimental Taguchi matrix data.

A comprehensive experimental and kinetic modelling study of the ignition delay time (IDT) characteristics of some binary-blends of C1-C2 gaseous hydrocarbons such as methane/ethylene, methane/ethane, and ethane/ethylene were performed over a wide range of composition (90%/10%, 70%/30%, 50%/50%), temperature (~800-2000 K), pressure (~1-40 bar), equivalence ratio (~0.5-2.0), and dilution (~75-90%).An extensive literature review was conducted, and available data were extracted to create a comprehensive database for our simulations. Based on existing literature data, an experimental matrix was designed using the Taguchi approach (L9) in order to identify and complete the experimental matrix required to generate a comprehensive experimental IDT set necessary for the validation of a chemical kinetic model. The required high-and low-temperature IDTs were collected using low/high-pressure shock tubes and rapid compression machines, respectively. The predictions of NUIGMech1.0 are examined versus all of the available experimental data, including those taken in the current study using the IDT simulations and a correlation technique. Moreover, the individual effect of the studied parameters, including mixture composition, pressure, equivalence ratio, and dilution on IDT is investigated over the studied temperature range. Correlations that were developed based on NUIGMech1.0 are presented for each specific blended fuel over the conditions studied. These correlations show an acceptable performance versus the experimental data.

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