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Laminar burning velocity of oxy-methane flames in atmospheric condition

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  • Oh, Jeongseog
  • Noh, Dongsoon

Abstract

The laminar burning velocity of oxy-CH4 flames in atmospheric conditions (300 K and 1 atm) was studied with a lab-scale Bunsen burner. CH chemiluminescence (CH*) was measured, and Schlieren photography was used to derive the laminar burning velocity. The experimental result was compared with the numerical calculation by using a GRI-Mech. ver. 3.0 in a CHEMKIN package. The global equivalence ratio (φG) of an oxy-CH4 mixture varied from φG = 0.5 to 2.0 in 0.1 steps in a laminar flow region. From the observation of the experimental measurements, the structure of laminar premixed flames was composed of a preheating zone, a reaction zone, and a burned gas region. The adiabatic flame temperature (TAd) was predicted to be 3056 K at φG = 1.1 from the numerical calculation. With the angle method, the laminar burning velocity (SL) of premixed oxy-CH4 flames at a normal temperature (300 K) and pressure (1 atm) was measured as SL = 2.95 m/s from Schlieren photographs and SL = 2.91 m/s from CH* images.

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  • Oh, Jeongseog & Noh, Dongsoon, 2012. "Laminar burning velocity of oxy-methane flames in atmospheric condition," Energy, Elsevier, vol. 45(1), pages 669-675.
    • Handle: RePEc:eee:energy:v:45:y:2012:i:1:p:669-675
    DOI: 10.1016/j.energy.2012.07.027
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    References listed on IDEAS

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    1. Riaza, J. & Álvarez, L. & Gil, M.V. & Pevida, C. & Pis, J.J. & Rubiera, F., 2011. "Effect of oxy-fuel combustion with steam addition on coal ignition and burnout in an entrained flow reactor," Energy, Elsevier, vol. 36(8), pages 5314-5319.
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    Cited by:

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    7. Oh, Jeongseog & Noh, Dongsoon & Lee, Eungyeong, 2013. "The effect of CO addition on the flame behavior of a non-premixed oxy-methane jet in a lab-scale furnace," Applied Energy, Elsevier, vol. 112(C), pages 350-357.
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    15. de Persis, Stéphanie & Foucher, Fabrice & Pillier, Laure & Osorio, Vladimiro & Gökalp, Iskender, 2013. "Effects of O2 enrichment and CO2 dilution on laminar methane flames," Energy, Elsevier, vol. 55(C), pages 1055-1066.
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    17. Oh, Jeongseog, 2016. "Spectral characteristics of a premixed oxy-methane flame in atmospheric conditions," Energy, Elsevier, vol. 116(P1), pages 986-997.
    18. Abdelhafez, Ahmed & Rashwan, Sherif S. & Nemitallah, Medhat A. & Habib, Mohamed A., 2018. "Stability map and shape of premixed CH4/O2/CO2 flames in a model gas-turbine combustor," Applied Energy, Elsevier, vol. 215(C), pages 63-74.
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