Date of download: 10/27/2017 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Figure Legend: Schematic representation of the experimental setup

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Figure Legend: Combustion pressure traces at an equivalence ratio of 1 and different oxygen ratios (reader is referred to the online version of this article for color info)

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Figure Legend: Measured LBV at an equivalence ratio of 1 as a function of oxygen ratio

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Figure Legend: The adiabatic flame temperature versus equivalence ratio at different O2 ratios. Also shown is results in air (reader is referred to the online version of this article for color info).

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Figure Legend: Combustion pressure traces at D = 35% and different equivalence ratios (reader is referred to the online version of this article for color info)

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Figure Legend: Measured LBV versus equivalence ratio at different O2 ratios. Predictions of GRI-Mech 3.0 [29] and ARAMCO Mech 1.3 [36] are also shown to be in good agreement with the current data.

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Figure Legend: Current LBV data for mixture with D = 35% at different equivalence ratios with those of Xie et al. [5], Hu et al. [4], and Konnov and Dyakov [6]

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Figure Legend: Current LBV data for mixture with D = 32% at different equivalence ratios with those of Konnov and Dyakov [6]

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Figure Legend: Flame propagation for CH4, O2, and CO2 at an equivalence ratio of 1 and D = 26%. Laser is incident from top. Window diameter is 1.85 in. Note that LBV data are neglected in this case due to nonspherical flame.

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Figure Legend: Flame propagation for CH4, O2, and CO2 and D = 38%, at an equivalence ratio of 0.9 ((a) and (b)), and 1.1 ((c) and (d)). Laser is incident from top. Window diameter is 1.85 in.

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Figure Legend: CO2 sensitivity for D = 38%, T = 1140 K

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Figure Legend: CO2 sensitivity for D = 35%, T = 1140 K

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Figure Legend: CO2 sensitivity for D = 32%, T = 1140 K

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Figure Legend: OH, O, and H radicals mole fraction at different CO2 fraction of CH4/CO2/O2 mixture, Φ = 1: solid lines—D = 38% and dashed lines—D = 32% (reader is referred to the online version of this article for color info)

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Figure Legend: Comparison of current data with GRI-Mech 3.0 [29] predictions (modified and unmodified mechanisms, see text for details)