A ramjet engine operates at M=1.5 at a altitude of 6500m. The diameter of the inlet...
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A ramjet engine operates at M=1.5 at a altitude of 6500m. The diameter of the inlet diffuser at entry is 50 cm and the stagnation temperature at the nozzle entry is 1600K. The calorific value of the fuel used is 40 MJ/kg. the properties of the combustion gases are same as those of air (Y-1.4, R=287 J/Kg K.. The velocity of air at the diffuser exit is negligible. Calculate (a) the efficiency of the ideal cycle (b) flight speed (c) air flow rate (d) nozzle jet Mach number (h) propulsive efficiency (i) and thrust. Assume the following values: nD=0.90,7 -0.98,7, 0.96 stagnation pressure loss in the combustion chamber =002po2 A ramjet engine operates at M=1.5 at a altitude of 6500m. The diameter of the inlet diffuser at entry is 50 cm and the stagnation temperature at the nozzle entry is 1600K. The calorific value of the fuel used is 40 MJ/kg. the properties of the combustion gases are same as those of air (Y-1.4, R=287 J/Kg K.. The velocity of air at the diffuser exit is negligible. Calculate (a) the efficiency of the ideal cycle (b) flight speed (c) air flow rate (d) nozzle jet Mach number (h) propulsive efficiency (i) and thrust. Assume the following values: nD=0.90,7 -0.98,7, 0.96 stagnation pressure loss in the combustion chamber =002po2
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Thermodynamics An Interactive Approach
ISBN: 978-0130351173
1st edition
Authors: Subrata Bhattacharjee
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