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Water vapor at 100 lbf/in^2, 500 degrees F and a velocity of 100 ft/s enters a nozzle operating at steady state and expands adiabatically to the exit, where the pressure is 40 lbf/in^2. If the isentropic nozzle efficiency is 95%, determine for the nozzle (a) the velocity of the steam at the exit, in ft/s and (b) the amount of entropy produced, in Btu/degree R per lb of steam flowing.
methane ch4 at 25 c 1 bar enters a furnace operating at steady state and burns completely with 140 of theoretical air
Carbon dioxide flows in a horizontal duct at 7 bar abs. and 300 K with a velocity of 20m/s. At a dowstream section, the pressure is 3.5 bar abs and the temperature is 280 K. if 1.4 x 10^4 j/kg of heat is lost by the fluid between these locations.......
A material is found to have a tenth-thickness of 2.3 cm for 1.25-MeV gamma rays. What is the linear attenuation coefficient for this material? What is the half-thickness? What is the mean-free-path length for 1.25 MeV photons in this material?
water is boiled at 90 c by a horizontal brass heating element of diameter 7 mm. determine the surface temperature of
in one cycle a heat engine absorbs 480 j from a high-temperature reservoir and expels 300 j to a low-temperature
consider the following wind turbine with a constant speed generator connected to the rotor via a conventional
Determine whether laminar-to-turbulent transition occurs in the boundary layer of the fuselage. If transition occurs, where does it occur - Estimate the skin friction drag on the aircraft's fuselage.
Water fills a 0.5 m 3 piston-cylinder device at a pressure of 200 kPa and a quality of 40%. The container is now heated until the temperature reaches 500°C. Determine the final volume. Sketch on a P-v diagram relative to the saturation lines
A steam turbine operates with 1.6MPa and 350C steam at its inlet and saturated vapor at 30C at its exit. The mass flow of the steam is 23kg/s and the turbine produces 7,400kW of power. Determine the rate at which heat is lost through the casing of th..
a 20 mw radial flow hydraulic turbine is to be designed with a head of 70 m and a speed of 90 rpm. a geometrically
Steam at a pressure of 14.7psia and a temperature of 320deg F enters a diffuser inlet at a velocity of 500ft/s. The steam decelerates in the diffuser to a velocity of 100ft/s. The steam leaves the diffuser as saturated vapor at 240 deg F. The area of..
Using X as the generalized coordinate system in the picture below, find the differential equation governing free vibration of the system with free body diagram method. Determine the natural frequency and the damping ratio.
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