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The upper arms of a porter governor are pivoted on the axis of rotation, their lengths being 30 cm. The lower arms are pivoted on the sleeve at a distance of 3 cm from the axis, their lengths being 27 cm. Mass of each ball is 6 kg and the sleeve mass is 50 kg. Find the equilibrium speed for a radius of rotation of 17 cm and also the effort and power for 1% change of speed.
a 20 mw radial flow hydraulic turbine is to be designed with a head of 70 m and a speed of 90 rpm. a geometrically
Calculate the air outlet temperature and the heat removed from the vane - Generate a plot of the air outlet temperature as a function of flow rate for 0.1 m 0.6 kg/h.
An equimolar mixture of helium and argon gases is to be used as the working fluid in a closed-loop gas-turbine cycle. The mixture enters the turbine at 2.5 MPa and 1300 K and expands isentropically to a pressure of 200 kPa. Determine the work outp..
Describe a physically-plausible situation where the Reynolds number is (a) 1 (b) 10,000 (c) 1,000,000. For flow in tubes/pipes/ducts, use Red For flow over/along long/blunt objects, use Rel.
A heat pump operates at steady state maintains a house at 22 0C when the outside is -22 0C using 15 kW of power. The manufacturer claims that the power input required is 3.2 kW. Applying energy and entropy rate balances evaluate the claim.
a steam compressor is used to increase the pressure of saturated water vapor at 1000 kpa to 1500 kpa. the flow rate is
If the lifetime earnings of a high-school graduate average $1,200,000, what is the expected value of earning a college degree?
r134a is condensed at a constant temperature of 30degc as it flows through the condenser of a refrigerator by rejecting
For each case, determine the specified property value and locate the state by hand on sketches of the p-y and T-y diagrams.
The circuit is to be tuned over the given frequency range by means of capacitors which are connected in series with the primary and secondary. Calculate the capacitor range required such that the circuits will tune over this range
determine the velocity of on the outer rim of the spool at the instant shown when the cable is pulled to the right with
A round cantilever bar is loaded. Given diameter d = 50mm, T = 0.1P N.m, F = 10P N. Allowable stresses are 100 MPa in tension and 60 MPa in shear on a section at a = 120 mm from the free end. Determine largest P.
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