International Scientific Journal

Thermal Science - Online First

online first only

Analysis of laminar premixed combustion flame characteristics for shale gas, biomass gas, and coalbed gas

In this paper, three clean gases (shale gas, biomass gas, and coalbed gas) are simulated by using Chemkin-Pro software. The GRI 3.0 mechanism, which exhibits superior predictive performance overall, is chosen for numerical simulation based on comparative analysis. The comprehensive analysis of the effects of fuel components on flame speed and temperature in the three mixtures. Based on the laminar burning velocity, the numerical decoupling method is used to separate the chemical and physical effects of CH4, as well as the dilution, thermal, and chemical effects of CO2. At the same time, verification and analysis are carried out by sensitivity analysis and flame structure analysis. Sensitivity analysis is employed to evaluate the impact of key fundamental reactions on laminar burning velocity and temperature, while flame structure analysis is utilized to ascertain variations in crucial species and temperatures during flame structure analysis is utilized to ascertain variations in crucial species and temperatures during flame combustion.
PAPER REVISED: 2024-03-25
PAPER ACCEPTED: 2024-03-28
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