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Steam produced at 70 bar and some unknown temp. A small amount of steam is bled off just before entering a turbine and goes through an adiabatic throttling valve to atmospheric pressure. The temp of the steam exiting the throttling valve is 400C. The unthrottled steam is fed into the turbine, where it is adiabatically expanded to atmospheric pressure. a) What is the temp. of the steam entering the turbine? b) What is the maximum work per kilogram of steam that can be obtained using the turbine in its present mode of operation?
the cage of a mine hoist descends part of a shaft with an acceleration of 1 ms2 and the remainder of the distance with
liquid water flows isothermally at 75of through a one-inlet one-outlet duct operating at steady state. the ducts inlet
a regenerative gas turbine with single stage compression and double stage expansion is used to generate power. air
a machine table driven by closed loop positioning system consists of a motor gearbox lead screw and an optical encoder.
(a) The temperature profile as a function of radial position
compressive centric forces of 30 kips are applied at both ends of the assembly shown by means of rigid end plates.
a specimen is originally 1 ft long has a diameter of 0.5 in. and is subjected to a force of 500 lb. when the force is
measuring fracture toughnessthe aim of this demonstration is to use measurements of the load required to propagate a
when drilling a hole in a table leg a furniture maker uses a hand-operated drill with a bit of diameter d4.0mm.a. if
At a given instant in time, flywheel OA is caused to rotate with angular velocity of w=2rad/sec and angular acceleration of alpha=6rad/s2. determine the angular velocity of links AB and BC at this instant in time. AB=.5m, BC=.4m, OA=.3m
a man having the mass of 73 kg sits in the chair which is pin-connected to the frame bc. if the man is always seated in
at 60oc the surface of water is .0662nm and that of mercury yis .47nm. determine the capillary height changes in these
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