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The power output of an ideal, open-cycle gas turbine cycle is 75 MW and its pressure ratio is 16. Air enters the compressor at 520 R and enters the turbine at 2800 R. Using variable specific heats at 1000°F: cp = 0.263 Btu/lbm-R and k = cp/cv = 1.353, find: (a) cycle thermal efficiency (b) mass flow rate of air.
a horizontal axisymmetric jet of air with 10 mm diameter strikes a stationary vertical disk of 200 mm diameter. the jet
an air compressor receives atmospheric air at t0 17degc 100 kpa and compresses it up to 1400 kpa. the compressor has
use excel or some other computer program to make an accurate plot of the goodman relationship for a steel whose tensile
an ammonia absorption refrigeration cycle requires 2500 btulbm heat transfer in the generator.saturated vapor leaves
a 5 ft3 tank containing steam at 14.7 psia 1 quality is fitted with a relief valve. heat is transferred to the tank
in the casting of steel under certain mold conditions the mold constant in chvorinovs rule is know to be 4.0 mincm2
the waveform from a mechanical vibration is sensed by a velocity-sensitive vibrometer. the oscilloscope trace indicates
for a silicon chip at steady state determine the rate of entropy production. the chip is 5 mm on a side and 1 mm in
In a refrigerator 1 kW is removed from the -10 degree C cold space and 1.3 kW is moved into the 30 degree C warm space. Find the exergy fluxes including direction associated with the two heat transfers.
a rigid tank with a total volume of 0.05m3 contains a movable piston separating the vessel into two compartments each
water enters vertically and steadily at a rate of 35 ls into the sprinkler shown in figure q.4. the sprinkler has
Consider a wooden door with a glass window. The door is 5 cm thick and 0.75 m wide by 2 m tall. The window is 0.2 m square and 1 cm thick. The air on one side of the door has a temperature of 23°C and a heat transfer coefficient of 10 W/m2-K. The air..
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