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The Engine Test Facility at the Arnold Air Force Base in Tennessee requires a test cell 48.0 ft in diameter and 85.0 ft long with an air flow rate of 4300. ft3 /s at atmospheric pressure and temperature.
Carry out the preliminary thermodynamic design of a compressor-nozzle system that meets these requirements. The compressor inlet is at atmospheric conditions, and the inlet temperature of the nozzle must be 70.0°F (this means an intercooling system must be used).
Determine the horsepower required to drive the compressor, the nozzle outlet temperature, and the entropy production rate of your nozzle.
Assume the compression process is polytropic with n = 1.30 and the pressure loss through the nozzle is 15.0% of the inlet pressure.
An adiabatic vessel contains steam at 180 [C] and 116 [kPa]. The volume is 0.5 [m^3]. Steam at 150 [C] with a quality of 0.85 is fed into the vessel until the flow stops. What are the final pressure and temperature inside the tank? What is its qualit..
assuming that the diameters of 1000 brass plugs taken consecutively from a machine form a normal distribution with
a rocket has an initial mass of 25000 kg of which 20000 kg is fuel and oxygen. it is propelled directly upward from
A 6-lb collar can slide without friction on a vertical rod and is held so it just touches an undeformed spring.
A steam engine functions by converting liquid water to steam, which is then used to drive a rotating shaft. This engine contains 2 engineering devices: the boiler where the liquid water is converted to steam and the turbine where the steam is used to..
calculate the dollar value of the buoyancy error in weight determination. (Note: 1 lbm = 12 troy oz.)
a hollow shaft has an outsaid diameter of 35 mm and an insaid diameter of 25 mm complute the torsional shear stress in
consider an air-standard brayton cycle. what is the efficiency of the brayton cycle if the pressure ratio is 20 and the
Two torsional springs, M = ku, are used to assist in opening and closing the hood of this truck. Assuming the springs are uncoiled (u = 0°) when the hood is opened, determine the stiffness k (N # m>rad) of each spring so that the hood ..
for n2 gas cpm is nearly constant at 3.5r 29.1 jmol k for temperatures in the range 100 to 400 k and for low or
Investigate the effect of flow direction on the heat rate (W/m) for (a) horizontal, (b) downward, and (c) upward flow.
An adiabatic turbine operates at steady state. Air enters the turbine at a pressure and temperature of 800kPa and 1100K, respectively, and exits at 100kPa. A temperature sensor at the turbine exit indicates that the exit air temperature is 700K. Kine..
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