The following data are given for a certain rocket unit: thrust, 8896 N; propellant
consumption, 3.867 kg/sec; velocity of vehicle, 400 m/sec; energy content of propellant,
6.911 MJ/kg. Assume 100% combustion efficiency.
Determine (a) the effective velocit
For a vehicle in gravitationless space, determine the mass ratio necessary to boost the
vehicle velocity by (a) 1600 m/sec and (b) 3400 m/sec; the effective exhaust velocity
is 2000 m/sec. If the initial total vehicle mass is 4000 kg, what are the corresp
5.1. Explain the physical or chemical reasons for a maximum value of specific impulse at
a particular mixture ratio of oxidizer to fuel.
Dissociation of molecules absorbs considerable energy. This causes a decrease in the combustion
temperature, which can
For a vehicle in gravitationless space, determine the mass ratio necessary to boost the
vehicle velocity by (a) 1600 m/sec and (b) 3400 m/sec; the effective exhaust velocity
is 2000 m/sec. If the initial total vehicle mass is 4000 kg, what are the corresp
1. Plot the variation of the density specific impulse (product of average specific gravity
and specific impulse) with mixture ratio and explain the meaning of the curve. Use the
theoretical shifting specific impulse values of Fig. 51 and the specific grav
The following data are given for a certain rocket unit: thrust, 8896 N; propellant
consumption, 3.867 kg/sec; velocity of vehicle, 400 m/sec; energy content of propellant,
6.911 MJ/kg. Assume 100% combustion efficiency.
Determine (a) the effective velocit
Why does heat transfer increase during combustion instability?
During the combustion process of a rocket engine there is an interaction between the
combustion itself and the acoustic field. This interaction is considered smooth when it does
not exceed + o
1. Plot the variation of the density specific impulse (product of average specific gravity
and specific impulse) with mixture ratio and explain the meaning of the curve. Use the
theoretical shifting specific impulse values of Fig. 51 and the specific grav
5.1. Explain the physical or chemical reasons for a maximum value of specific impulse at
a particular mixture ratio of oxidizer to fuel.
Dissociation of molecules absorbs considerable energy. This causes a decrease in the combustion
temperature, which can