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MAE 112
PROPULSION
FIRST MIDQUARTER EXAM
February, 8, 2007
Do all three problems in ninety minutes.
Books, notes and calculators can be used freely.
I.
(a) Establish
the equations which can be employed for the calculation of the
equilibrium composition and the flame temperature when liquid methyl alcohol
CH
3
OH burns adiabatically at a constant pressure of fifteen atmospheres.
The
mixture is lean with 75% excess air.
The air enters at a temperature of 1000
°
R
while the liquid fuel enters at 537
°
R.
Consider the products to be CO
2
, CO, H
2
O,
H
2
, O
2
, and N
2
only.
Write all of the required equations with known quantities and
parameters substituted into the equation.
Identify the unknowns but do not solve
the equations.
(b) For the situation described above, establish the equations to solve for the
theoretical (ideal) temperature and composition.
What are the products in this case?
Again, write the necessary equations, identify the known quantities, and identify the
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This test prep was uploaded on 04/07/2008 for the course MAE 112 taught by Professor Sirgiano during the Winter '08 term at UC Irvine.
 Winter '08
 Sirgiano

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