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The total pressure of air entering a single-stage centrifugal compressor is 1.013 bar, and the total T is 288 K. The rotor tip speed, U2 = 500 m/s, V2'= 456 m/s and Vu2' = 440 m/s. Find the static pressure at the impeller outlet in bars. Assume ηimpeller = 0.9, compressor stage efficiency ηcomp = 0.8, and ηmech = 0.98. Hint: Note that e = Vu2'U, and calculate P02/P01. P2/P02=(T2/T02)>k/k-1.
(a) Find the speed of the bucket (b) How fast must the bucket move at the top of the circle so that the rope does not go slack?
A wheel barrow is used to lift a 200 lb load. The length from the wheel axle to the center of the load is 2 ft. The length from the wheel and axle to the effort is 5 ft. 5. What is the ideal mechanical advantage of the system?
compute (a) the interplanar spacing for the set of planes and (b) the atomic radius for the rhodium atom.
This problem came from the "kinematics of particles" part holding the "Determination of the motion of a particle" section, so use the formula relating to this section of this part.
What kind of metals are often recommended for use at low temperatures, particularly when any sudden loading of the part is expected?
an ideal rankine cycle produces 100 MW of power. If the steam enters the turbine at 100 bar and 500C and is condensed at 1 bar, determine the flow rate of stream and the thermal efficiency.
The uniform rectangular plate is released from rest in the position shown. Determine the maximum angular velocity during the ensuing motion. Friction at the pivot is negligible.
a velocity vector v is deirectred from point A (0,10,-8) toward point B (24,-18,0), WHERE THE COORDINATES are in feet. find the rectangular representation of v, given that its magnitude is 12 ft/s
A 9º wedge is inserted using a force of 1000 lbs. The static coefficient of friction between the wedge and the log is 0.50. Determine the force required to pull the wedge out.
Calculate the exact integration result using Matlab symbolic tools and calculate the errors in calculating work done
Describe IN DETAIL how you could determine the required rate of heat addition or removal.
air at 0.1 kgs is to be cooled from 140 c to 40 c in a heat exchanger. the coolant water is at 20c constant throughout
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