air/fuel ratio of natural gas 4 questions


a) Calculating the stoichiometric air/fuel ratio of natural gas (assuming it has 80% methane, 11% propane, 5.5% carbon dioxide, 3% nitrogen, 0.5% hydrogen sulphide (all by mass)). b) By following the above instruction, testing the flame propagation speeds under actual AFR (air/fuel ratio) around φ = 1.0, and recording the test process, then calculating the flame propagation speed. c) Comparing your measurement result to the calculation result derived from the following empirical formulas for the stoichiometric combustion of natural gas. d) Testing and recording the flame profiles under different AFR, and analysing and discuss effects of air/fuel ratio on flame propagation. I also share 2 videos 25 min you can see the lab I think one of the answers  inside the video  please check world document

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