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Air at 2900 R, 435 psia enters a turbine operating at steady state and expands adiabatically to the exit, where the temperature is 1500 R. If the isentropic turbine efficiency is 90%, determine
(a) the pressure at the exit (psia),
b) the work developed, in Btu per lbm of air flowing.
Assume ideal gas behavior for the air and ignore kinetic and potential energy effects.
a golfer hits a golf ball with an initial velocity of 160 fts at an angle of 25deg with the horizontal. knowing that
The total force Fa + Fb exerted on the shelter is in the direction parallel to the line L and it's magnitude is 400 lb. Graphically determine the magnitudes of Fa and Fb.
an open brayton cycle engine operates with a compressor-pressure ratio of 6 an inlet temperature of 20 c and inlet
the concrete slab of the basement is 11 m long 8 m wide and 0.20 m thick. during the winter temperatures are nominally
Cracks propagate when the stress intensity factor exceeds a critical value and describe the fracture behaviour of the insulation tape loaded with a small crack.
comment on any safety hazards that might be encountered. especially, what would you anticipate if the inlet gas control valve were to malfunction and the gas space above the fuel were to reach full storage tank pressure (69bar)? the fuel tank has ..
a cylindrical bronze sleeve 2 is held in compression against a rigid machine wall by a high-strength steel bolt 1 as
determine the work and heat transfer, each in kJ. sketch the process on p-v and T-s coordinates. Associate the work and heat transfer with areas on these diagrams.
What are the forces acting on workpiece during turning process. how workpiece should be clamp
for a wind speed of 6 ms a stack gas exit velocity of 20 ms a stack diameter of 4 m a heat emission rate of 15 mw and
plot the evolution of the height, h, of the stable boundary layer and the strength, delta thetas, as a function of time.
Calculate the crack length after cycles and subjected to a cyclic stress normal to the crack
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