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The measured shaft torque on the turbomachine shown in Fig. P12.3 is -60 N m when the absolute velocities are as indicated. Determine the mass flowrate. What is the angular velocity if the magnitude of the shaft power is 1800 N m/s? Is this machine a pump or a turbine? Explain.
Calculate the Reynolds number, the Nusselt number, the convective heat transfer coecient (h), and the total heat transfer (Q_dot) for the following: 1g/s of water owing through a 2mm-diameter circular tube, 2cm long, with wall heat flux q'' = 100 W/c..
Transients on an open line. A lossless open transmission line is given as shown in Figure 16.41. The line is 10 m long and has a capacitance of 200 pF/m and inductance of 0.5 μH/m. Calculate the transient voltage at a distance of 5 m from the dc s..
helium is used to operate an 18 hp gas turbine. the gas enters the steady-flow device at 220 fts through an area of
At the beginning of the compression stroke, the volume of a certain diesel engine cylinder is 1.000 liter and it is filled with air at 300 K and 100 kPa absolute. At the end of the compression stroke the air is at 800 K and 4280 kPa absolute.
What is the difference between control charts for variables and control charts for attributes?
Water at 20-C ?ows over a 3-m long and 2-m wide ?at plate at 3 m=s. Assume a turbulent ?ow from the leading edge (a trip wire at the leading edge can be used to cause the turbulence) and calculate:
an air-standard diesel cycle operates with a compression ratio of 18. at the beginning of the compression process the
a rigid 1.2m3 tank contains water at pressure of 198.5 with 10 percent liquid and 90 percent vapor by volume. a
In case of a fire on the deck of an aircraft carrier, the firefighting crew may wish to take advantage of all the seawater around the ship. If the deck of the ship is 15 m above sea level, what problems do you see in drawing water up by suction? Can ..
About what permeate composition would have been obtained if a vacuum had been used on the downstream side?
Hot water is provided to a house by an electric water heater which uses a 60L tank. The electric heater is rated for a 1.6kW. The hot water tank is completely full with water at 80°C when someone starts a shower. The shower faucet mixes cold water at..
estimate the velocity with which you would contact the ground if you jumped from an airplane at an altitude of 5000 ft
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