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Water at 15°C is to be discharged from a reservoir at a rate of 18 L/s using two horizontal cast iron pipes connected in series and a pump between them. The first pipe is 20 m long and has a 6-cm diameter, while the second pipe is 35 m long and has a 4-cm diameter. The water level in the reservoir is 30 m above the centerline of the pipe. The pipe entrance is sharp-edged, and losses associated with the connection of the pump are negligible. Determine the required pumping head and the minimum pumping power to maintain the indicated flow rate.
an insulated turbine is operating on nitrogen. the gas enters at 3.8 atm 170degc and expands to 1 atm. the isentropic
a stream of methanol vapor is used to chill a countercurrently flowing saturated steam in an adiabatic heat exchanger.
Sketch the frequency response of the system. Overlay the frequency spectrum of the excitation and as you start the system up, increasing Ω from 0 to 60 rpm, what speeds are most likely to excite large amplitude response? Why?
a piston cylinder device contains 0.5 kg of water at 1.0mpa and 400oc. now it is cooled to 1mpa in sat-v phase.
If the final pressure is 1.0 MPa, determine (a) the temperature (°C) at the final state and (b) the heat transfer (kJ) during this process.
Two forces are applied to the pipe AB as shown. Knowing that the pipe has inner and outer diameters equal to 35 mm and 42 mm, respectively, determine the normal and shearing stresses at (a) point a, and (b) point b
determine (a) the compression ratio, (b) the cycle efficiency, (c) exhaust temperature, and (d) mean effective pressure (kPa). Draw (e) a P-v diagram and (f) a T-s diagram
1. how much pressure is required for a force output of 62275 newtons if the effective piston area of the cylinder is
hyundai advertises a 10 year-100000 mile power-train warranty for its cars. you work for a competitor and want to see
a car slides freely in vertical plane along a curve. it starts at a point b which is at a height h above the point a.
1 a rigid tank of propane c3h8 with a volume of 1.5 m3 is filled with 8 kg of gas at an initial temperature of 25degc.
using matlab simulink set up the negative feedback system of nbspand find the value of the gainnbspaplot the step
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