1. Date of download: 6/21/2016 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO 2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Schematic representation of the experimental setup Figure Legend:

2. Date of download: 6/21/2016 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO 2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 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) Figure Legend:

3. Date of download: 6/21/2016 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO 2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Measured LBV at an equivalence ratio of 1 as a function of oxygen ratio Figure Legend:

4. Date of download: 6/21/2016 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO 2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 The adiabatic flame temperature versus equivalence ratio at different O 2 ratios. Also shown is results in air (reader is referred to the online version of this article for color info). Figure Legend:

5. Date of download: 6/21/2016 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO 2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Combustion pressure traces at D = 35% and different equivalence ratios (reader is referred to the online version of this article for color info) Figure Legend:

6. Date of download: 6/21/2016 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO 2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Measured LBV versus equivalence ratio at different O 2 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. Figure Legend:

7. Date of download: 6/21/2016 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO 2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 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] Figure Legend:

8. Date of download: 6/21/2016 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO 2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Current LBV data for mixture with D = 32% at different equivalence ratios with those of Konnov and Dyakov [6] Figure Legend:

9. Date of download: 6/21/2016 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO 2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Flame propagation for CH 4, O 2, and CO 2 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. Figure Legend:

10. Date of download: 6/21/2016 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO 2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Flame propagation for CH 4, O 2, and CO 2 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. Figure Legend:

11. Date of download: 6/21/2016 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO 2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 CO 2 sensitivity for D = 38%, T = 1140 K Figure Legend:

12. Date of download: 6/21/2016 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO 2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 CO 2 sensitivity for D = 35%, T = 1140 K Figure Legend:

13. Date of download: 6/21/2016 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO 2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 CO 2 sensitivity for D = 32%, T = 1140 K Figure Legend:

14. Date of download: 6/21/2016 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO 2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 OH, O, and H radicals mole fraction at different CO 2 fraction of CH 4 /CO 2 /O 2 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) Figure Legend:

15. Date of download: 6/21/2016 Copyright © ASME. All rights reserved. Laser Ignition and Flame Speed Measurements in Oxy-Methane Mixtures Diluted With CO 2 J. Energy Resour. Technol. 2015;138(3):032201-032201-9. doi:10.1115/1.4031967 Comparison of current data with GRI-Mech 3.0 [29] predictions (modified and unmodified mechanisms, see text for details) Figure Legend: