FUND OF AERODYNAMICS(LLF) +CONNECT (1YR)
FUND OF AERODYNAMICS(LLF) +CONNECT (1YR)
6th Edition
ISBN: 9781265141387
Author: Anderson
Publisher: MCG
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Chapter 10, Problem 10.13P

Consider a rocket engine burning hydrogen and oxygen. The total mass flow of the propellant plus oxidizer into the combustion chamber is 287.2 kg/s. The combustion chamber temperature is 3600 K. Assume that the combustion chamber is a low-velocity reservoir for the rocket engine. If the area of the rocket nozzle throat is 0.2 m 2 , calculate the combustion chamber (reservoir) pressure. Assume that the gas that flows through the engine has a ratio of specific heats, γ = 1 . 2 , and a molecular weight of 16.

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Consider a rocket engine burning hydrogen and oxygen. The total massflow of the propellant plus oxidizer into the combustion chamber is287.2 kg/s. The combustion chamber temperature is 3600 K. Assumethat the combustion chamber is a low-velocity reservoir for the rocketengine. If the area of the rocket nozzle throat is 0.2 m2, calculate thecombustion chamber (reservoir) pressure. Assume that the gas that flowsthrough the engine has a ratio of specific heats, γ = 1.2, and a molecularweight of 16.
If the calculated mass flow rate of petrol fuel is 9.25 x 10-5 kg/s, what is the time taken for the 10 mL of petrol fuel been supplied into the engine? Note that the calorific value and density of the petrol fuel are 43 MJ/kg and 712 kg/m3 respectively.
Find the boiler chimney diameter if the boiler has a capacity of 320 kW with a combustion efficiency of 75%, and uses diesel as fuel with a calorific value of 40000 kJ/kg. Assume the flue gases density as 1.12 kg/m3 and moving with a velocity of 4 m/s.

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