CombustionHW5.docx - Joel Luckenbaugh EGEE 430 Ljubisa Radovic Homework 5 Problem 1 CO/CO2 Ratio vs Axial Distance Opposed Flow Reactor 3 CO/CO2 Ratio

# CombustionHW5.docx - Joel Luckenbaugh EGEE 430 Ljubisa...

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Joel Luckenbaugh EGEE 430 Ljubisa Radovic Homework 5 Problem 1 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 0 0.5 1 1.5 2 2.5 3 CO/CO2 Ratio vs. Axial Distance Opposed Flow Reactor CH4 CH3OH Axial Distance (cm) CO/CO2 Ratio Here we can see that as the axial distance of the mixing increases for methane, the CO/CO2 ratio initially goes to a minimum around 0.85 cm, meaning yCO would be negligible. The ratio hits equilibrium around 1.425 cm for methane and at greater distances for methanol. For Methanol, the CO/CO2 ratio is much higher at smaller distances than methane, most likely due to having the potential for having higher radical concentrations from the alcohol functional group that would reaction with soot particles.
0.3 0.5 0.7 0.9 1.1 1.3 1.5 0 20 40 60 80 100 120 140 160 NO Formation Opposed Flow Reactors CH4 CH3OH Axial Distance (cm) ppm NO This figure is showing that NO concentration is maximized at an axial distance of around 0.75 cm for methane and at an axial distance of 0.8 cm for methanol. The reason for such a distinction can be

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• Spring '14
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