(b) The conditions of a gas in a combustor at entry are: pressure 0.343 bar, temperature 310 K , velocity $60 \mathrm{~m} / \mathrm{s}$. Determine the Mach number, pressure, temperature and velocity at the exit if the increase in stagnation enthalpy of the gas between entry and exit is $1172.5 \mathrm{~kJ} / \mathrm{kg}$. Take $c_{p}=1.005 \mathrm{~kJ} / \mathrm{kgK}$, $\gamma=1.4$.
Explanation
The Mach number, pressure, temperature and velocity at the exit of the combustor are calculated using the Fanno flow equations and the energy equation.
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