Other Gas Power System Applications Air enters the diffuser of a ramjet engine at 6 lbf/in.2, 420°R, with a velocity of 1600 ft/s, and decelerates essentially to zero velocity. After combustion, the gases reach a temperature of 2000°R before being discharged through the nozzle at 6 lbf/in.2 On the basis of an air-standard analysis, determine
(a) the pressure at the diffuser exit, in lbf/in.2
(b) the velocity at the nozzle exit, in ft/s.
Neglect kinetic energy except at the diffuser inlet and the nozzle exit.
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