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In this problem you will compute the performance of a methane/oxygen bipropellant rocket under idealized conditions. Assume a chamber pressure of 100 psi, inlet temperature
In this problem you will compute the performance of a methane/oxygen bipropellant rocket under idealized conditions. Assume a chamber pressure of 100 psi, inlet temperature of 298 K, throat diameter of 1 inch, and 15 conical nozzle with an expansion ratio of 16. Consider the following reaction: CH (1) +202(1) aCO2(g) + H2O(g) For simplicity, assume the reaction goes to completion (i.e. neglect chemical equilibrium). Answer the questions below: a) Assuming a stoichiometric fuel/oxygen mixture, what are the values of a and b? b) What is the available heat of the reaction? c) What is the chamber temperature, T.? d) What is the average molecular mass (in amu) of the products? e) What is the ratio of specific heats of the products? (Hint: you will need to do a Google search to find the needed standard heats of formation and specific heats at constant pressure)
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