Homework 1

Homework 1 - 5310 Combustion Fundamentals Homework#1...

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5310: Combustion Fundamentals Assigned: August 25, 2011 Homework #1 Due: September 22, 2011 Computer-based Problem: Write a computer code to solve for the adiabatic flame temperature and product composition for hydrogen-oxygen combustion over a range of equivalence ratios. The products of the reaction are H 2 O, H 2 , H, O 2 , O, and OH. Qualitatively and quantitatively compare your results with NASA CEA. Complete the following questions from An Introduction to Combustion , 3 rd Edition: 2.5, 2.7, 2.8, 2.9, 2.12, 2.16, 2.18, 2.23, 2.27, 2.31, 2.37, 2.42, 2.45, 2.55 Complete the following questions using NASA CEA: 2.51, 2.52 Problems 1-9: Solve the problems completely. 1. Suppose that methane and air in stoichiometric proportions are brought into a calorimeter at 500 K. The product composition is brought to the ambient temperature (298 K) by the cooling water. The pressure in the calorimeter is assumed to remain at 1 atm, but the water formed has condensed. Calculate the heat of reaction. 2. Calculate the flame temperature of normal octane (liquid) burning in air at an equivalence ratio of 0.5. For this problem assume that there is no dissociation of the stable products formed. All reactants are at 298 K and the system operates at a pressure of 1 atm. Compare the results with those given in the graphs in lecture. 3. Carbon monoxide is oxidized to carbon dioxide in an excess of air (1 atm) in an afterburner so that the final temperature is 1,300 K. Under the assumption of no dissociation, determine the air-fuel ratio required. Report the results on both a molar and mass basis. For the purposes of this problem assume that air has the composition of 1 mol of oxygen to 4 mol of nitrogen. The carbon monoxide and air enter the system at 298 K.
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Homework 1 - 5310 Combustion Fundamentals Homework#1...

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