SCRAMJET
- The wall of Ramjet will tend to fail at the higher
temperature around 2500k,
- Like Turbojets, Conventional ramjets are also limited by
material problem at high Mach Number.
- When the temperature of the air entering the combustor is
too high, during which the fuel injected, it will be decomposed by the higher temperature
instead been burned (Fuel will absorb rather than producing energy).
- The engine will become a Drag producing machine instead for
a Thrust producing device.
- When the air flow is decrease by the scramjet the relative
velocity and kinetic energy both decrease, during that energy required that any
missing kinetic energy will reappear as internal energy.
- When the flight Mach number exceeds about 6 led to
decelerate the flow to subsonic speeds.
Advantage
- No moving parts easies to manufacture.
- Has less weight and simple design.
- Does not have to carry oxygen tank.
- High seed could be achieved easier, so cheaper access to
outer space in the future.
Disadvantage
