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A modern jet engine has a temperature after combustion of about 1500 K at 3200 kPa as it enters the turbine section, see state 3 Fig. P.6.107. The compressor inlet is 80 kPa, 260 K state 1 and outlet state 2 is 3300 kPa, 780 K; the turbine outlet state 4 into the nozzle is 400 kPa, 900 K and nozzle exit state 5 at 80 kPa, 640 K. Neglect any heat transfer and neglect kinetic energy except out of the nozzle. Find the compressor and turbine specific work terms and the nozzle exit velocity.
describe the basics of the carnot cycle of thermodynamics and its application to heat engines such as diesel engines
the man pulls the boy up to the tree limb by walking backward. if he starts from rest when 0 and moves backward with a
A thin flat plate 6in square with a surface temperature maintained at 250°F is tested for drag in a wind tunnel with an airspeed of 100ft/s. The air is at standard sea level pressure and 60°F and flows over the top and the bottom of the plate. This f..
Ideal Otto and Brayton cycles are operating from sea level atmospheric inlet conditions and a pressure ratio 15:1. Find the thermodynamic efficiencies (nth) for these two cycles. There should be two answers
initially an insulated rigid tank contains 3.73 kg of water at 240oc and 1 mpa. a heater in the wall of the tank
You are boiling a kettle of water over a propane stove that is supplying a uniforma amount of heat. You note that it takes 3 minutes to heat water which is initially at 20C to its boiling point. Just as the water begins to boil, you receive a phone c..
a pressure gage connected to a tank of oxygen reads 50 psi and the temperature of the oxygen is 80degf. if the local
at steady state work at a rate of 5 kw is done by a paddle wheel on a slurry contained within a closed rigid tank.
a 5.70kg block hangs from a spring with spring constant 1900nm . the block is pulled down 6.80 cm from the equilibrium
If the speed of the man at A (XA = 5m and YA = 1m) is VA = 9 m/s and the increase of his speed is dVA/dt = 13 m/s2, calculate the magnitude of his acceleration and the slop angle at this point.
at steady state a commercial freezer maintains its interior temperature of -shy30f by rejecting heat to the
Consider a rocket engine with a convergent-divergent nozzle operating at sea level. The pressure in the combustion chamber is Pc= 10 MPa, with a combustion temperature of Tc= 2400 K. The static pressure measured in the throat of the rocket nozzle is ..
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