Q4. (Rayleigh flow)\ The pressure, temperature and Mach number of air in a combustion chamber entry are 4\ bar,

100\\\\deg C

, and 0.2 , respectively. The stagnation temperature between entry and exit is\ increased three times its initial value.\ a. Calculate the Mach number, pressure and temperature at the exit.\ (9 marks)\ b. Calculate the stagnation pressure loss.\ (4 marks)\ c. Calculate the heat supplied per kg of air.\ (4 marks)\ d. If the combustion chamber is a cylinder with diameter of

10cm

, what is the mass\ flow rate?\ (4 marks)\ e. For these inlet conditions, what is the maximum heat supply per

kg

of air the flow\ can accommodate? Describe what happens if the total heat supply is increased\ further.\ (4 marks)

24. (Rayleigh flow) The pressure, temperature and Mach number of air in a combustion chamber entry are 4 bar, 100C, and 0.2 , respectively. The stagnation temperature between entry and exit is increased three times its initial value. a. Calculate the Mach number, pressure and temperature at the exit. (9 marks) b. Calculate the stagnation pressure loss. (4 marks) c. Calculate the heat supplied per kg of air. (4 marks) d. If the combustion chamber is a cylinder with diameter of 10cm, what is the mass flow rate? (4 marks) e. For these inlet conditions, what is the maximum heat supply per kg of air the flow can accommodate? Describe what happens if the total heat supply is increased further. (4 marks)