Carbon dioxide (co2) gas enters a turbine operating at steady state at 50 bar, 500 k with a velocity of 50 m/s. the inlet area is 0.02 m2 . at the exit, the pressure is 20 bar, the temperature is 440 k, and the velocity is 10 m/s. the power developed by the turbine is 3 mw, and heat transfer occurs across a portion of the surface where the average temperature is 462 k. assume ideal gas behavior for the carbon dioxide and neglect the effect of gravity. let t0 = 298 k, p0 = 1 bar
determine the rate of heat transfer, in kw.

Fluids at rest possess no flow energy. a)- true b)- false

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Aheavily insulated piston-cylinder device contains 0.02 m3 of steam at 300 kpa and 200 °c. 1.2 mpa. d this process. team is now compressed in a reversible manner to a pressure of etermine the entropy change and the work done on the steam during this process