Find the plant-s thermal efficiency
A utility plant runs an ideal Rankine cycle with water. The boiler pressure is 3.0 MPa and the cycle has a high temperature of 450 °C and its low temperature is 45 °C. Find the plant's thermal efficiency.
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A motorist traveling along a straight portion of a highway is decreasing the speed of his automobile at a constant rate before exiting from the highway onto a circular exit ramp with a radius of 560 feet.
For the following signals, 1024 points were sampled. Determine the frequency step size of the FFT and the uncertainty in the frequency.
Determine (a) the pump work, wk, per kilogram of steam (b) the average density of steam, assuming that the pump is reversible in nature.
Determine how long it will take to vaporize all the liquid in the tank. Also, show the process on a T-v diagram with respect to saturation lines.
A dam in western North Carolina takes a 30 m3 /s flow of water from the Nantahala river and diverts it to a turbine through a 2 m diameter pipe. The elevation drop from the inlet to the exit is 300m.
Determine the initial state and the end state of the gas (use pressure and volume as the two properties). Do you think that the process is quasi-equilibrium?
Determine expressions for the temperature gradient and the temperature distribution when the surface at x=0 is at temperature T1.
The crate slides down the section of the spiral ramp such that r = (0.5z) ft and z = (100 - 0.1t2) ft, where t is in seconds. If the rate of rotation about the z axis is ? = 0.04pt rad/s, determine the magnitudes of the velocity and acceleration o
The mechanical effficiency of the system is 80%. What is the average power input in Watts necessary to accomplish this? Assume constant velocity.
A particle travels along a straight line with an acceleration of a = (10-0.2s) m/s2 , where s is measured in meters. Determine the velocity of the particle when s =10m if v =9m/s at s=o.
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