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(1) Use Chemkin’s (chemical kinetics software) built-in laminar flame speed calculator to explore the
flame speed of methane for a range of pressures (1 to 50 atm), inlet temperatures (300 to 600 K),
equivalence ratios (0.5 to 2.0). Use enough points over each range to be able to make good
observations.
a. Plot flame speed vs. equivalence ratio with temperature as a parameter for a few pressures
b. Plot flame speed vs. equivalence ratio with pressure as a parameter for a few temperatures
c. Plot flame speed vs. equivalence ratio with temperature as a parameter
d. For the equivalence ratio = 0.8, inlet temp. = 300 K, pressure = 1 atm case, plot the spatial
variation of the important species through the flame.
e. Graphically estimate the laminar flame thickness.
In ChemKin, open the flame_speed_parameter_study. ckprj project. Figure below shows a screenshot of
how the project should look like once it opens.
Select the Reactor physical properties tab, and set the desired inlet temperature, pressure and equivalence
ratio by inserting the corresponding values in the “Unburnt gas temperature”, “Pressure” and “Gas reaction
rate multiplier”, respectively. You should ideally select 15 different combinations of the three values in the
target intervals (300-600K, 1-50 atm, 0.5-2.0 equival...