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Water is to be pumped from a dam to a storage tank 20 m above at a rate of 70 L/s. The electric power needed to achieve this is 20.4 kW. Neglecting the frictional losses in the pipes and the change in the K.E, determine a) overall efficiency of the pump-motor unit and b) the pressure difference between the inlet and the exit of the pump. Draw the process diagram.
consider the ocean thermal energy conversion system given in the lecture notes. also take into consideration that 30 of
Shows an electric-circuit which is called a phase-lag network. Derive the transfer function and consider the above bock-diagram of figure (3). You are now required to derive the transfer function Y(s)/R(s), by using the signal flow graph meth..
there are supplied to a nozzle 2400 lbhr of steam at an absolute pressure of 200 psia. at the entrance v1 6000 ftmin
The desire is to raise the temperature of the ambient air from 60 degree F to 350 degrees F ---- I need to calculate the amount of steam energy in BTU's per minutes and lbs of steam per minute necessary to accomplish the increase in air temperatur..
a 75-lb stoplight is suspended between two poles as shown in fignbspp3-27. neglect the weight of the flexible cables
refrigerant 134a enters a compressor operating at steady state as saturated vapor at -4 degc and exits at a pressure of
make a text file that contains what is your absolute path, and call it paths.txt
the waveform from a mechanical vibration is sensed by a velocity-sensitive vibrometer. the oscilloscope trave indicates
a single stream tube is selected to characterize the air flow past the wing of an aircraft in flight at an altitude of
a construction vehicle of mass 30 mg is used to unload sand in a horizontal line through a port on the bottom of the
Calculate the actual power transmitted to the second pulley and calculate the power which can be transmitted if the maximum tension in the belt is limited to half of the ultimate strength of the belt.
Two bars, one having a circular section of radius b, the other an elliptic section with semiaxes a,b. For equal angles of twist, which bar experiences the larger shearing stress?
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