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A patent application describes a device that at steady state receives a heat transfer at the rate 1 kW at a temperature of 167°C and generates electricity. There are no other energy transfers. Does the claimed performance violate any principles of hermodynamics? Explain.
Describing realistic applications of mechanical control systems - Feedback Control System Design and implement the controller using mechanical components or its electronic analog.
Steam heated at constant pressure in a steam generator enters the first stage of a supercritical reheat cycle at 28 MPa, 520°C. Steam exiting the first-stage turbine at 6 MPa is reheated at constant pressure to 500°C. Each turbine stage has an isentr..
a hydro-electric plant uses an 85 efficient turbine-generator to produce power from a reservoir with a height of 45 m
a thin walled cylindrical pressure vessel has an outer diameter of 7.50 in and wall thickness of 0.250 in with an
Refrigerant 22 enters an insulated compressor operating at steady state as saturated vap or at -16 C with a mass flow rate of 1.5 kg/s. Refrigerant exits at 7 bar, 70 C. Changes in KE and PE from inlet to exit can be ignored. Determine: (a) the volum..
A pump is employed to deliver liquid water from a pond to a higher elevation. The pump steadily draws water from the pond at a volumetric flow rate of 192 gal/min through a pipe having a 7 in diameter inlet. The exit diameter of the pipe is 2 in. and..
superheated steam at 120 bar and 520c leaves the steam generator of a vapor power plant and enters a turbine with an
a horizontal beam ab with cross-sectional dimensions b 0.75 in x h 8.0 in. is supported by an inclined strut cd and
What is the magnitude of the friction force between the ramp and the cylindrical disk?
Measurements on the surface of a deformed sheet after unloading indicate that e1 = 0.154 and e2 = 0.070. Assume that the von Mises criterion is appropriate and that the loading was proportional (i.e., the ratio α = σy/σxremained constant during loadi..
a cnc drill press is to perform a series of through-hole drilling operations on a 1.75 in thick aluminum plate. each
A centrifugal water pump operates at 1750 rpm. The rotor geometry is shown in the sketch below. The inlet blade angle is 30 degrees and the exit blade angle is 90 degrees and the blade can be assumed to occupy negligible volume. Water enters with no ..
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