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Homework 4

# Homework 4 - constant pressure is a very good one for...

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5310: Combustion Fundamentals Assigned: November 15, 2011 Homework #4 Due: December 1, 2011 Complete the following problems from Turns: 8.1 8.2 8.3 8.4 8.5 8.6 8.7 (use MATLAB or other symbolic math package) 8.8 8.9 8.15 8.16 Make use of everything you have learned in the class so far (including CEA) to solve the following problem: A laminar flame propagates through a propane-air mixture with an equivalence ratio of 0.9, a pressure of 5 atm, and a temperature of 300 K. Find: 1. the flame velocity 2. the gas temperature 3. the velocity (be careful to reference this properly to a specified coordinate system) 4. the pressure behind the flame (the answer will be 4.999981 atm, so the justification of

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Unformatted text preview: constant pressure is a very good one for laminar flame analyses) 1 Discuss the following detailed flame calculations: 1. how does the selected axes vary on these two calculations? 2. what is the flame thickness in each case? 3. what percentage of the flame thickness do the major species occupy, or degrade or increase over? 4. compare and contrast the CO and CO 2 behavior in each case. 5. how do these results compare with complete combustion (theoretical) results? Stoichiometric CH 4-air premixed flame calculation (Reference: Turns, p. 272) 2 Stoichiometric CH 3 OH-air premixed flame calculation (Reference: Westbrook and Dryer) 3...
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Homework 4 - constant pressure is a very good one for...

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