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A large pump delivering 1.2 m3 /s of water with a pressure rise of 400 kPa is needed for a particular hydroelectric power plant. A proposed design change is tested on a smaller 1:4 scale pump. Estimate the flow rate and pressure rise which would be expected in the model study. If the power needed to operate the model pump is measured to be 8000 kW, what power would be expected to operate the prototype pump.
A machine of mass 400 kg operates at 1500 rpm and has an unbalanced which causes a harmonic repeated force pf magnitude 20,000 N. Design an isolation system to limit the transmitted force to 3,500 N and the amplitude of vibration during operation to ..
the man has mass 80kg and sits a distance 3m fromnbspthe center of the rotating platform. due to thenbsprotation his
the 50-kg crate is now projected down an incline as shown with an initial speed of 7 ms. investigate the time t
A mixture is composed of 3% air and 97% hydraulicfluid by volume. It llsa 20 cm3 container, and is initially at atmospheric pressure. The top of the container is compressed until the fluid pressure becomes 1 MPa absolute. The air adheres to the ideal..
Most desktop software, such as word processing software, can be configured in a number of different ways. Examine software that you regularly use and list the configuration options for that software. Suggest difficulties that users might have in c..
Helium enters subsonically and flows isentropically through the converging-diverging duct. Compare the values of Ma, T/T0, and P/P0 for helium with those for air at several locations in the duct. Use 0.163 ≤ Ma ≤ 3.221.
a dragster comes off the start line with an acceleration of 4 ms2. the acceleration increases uniformly from 4 ms2 to
water enters an insulated nozzle operating under steady conditions at a pressure of 60 psia a temperature of 350 degf
Using the functional decomposition weight the sub-functions and specs that match up to these subfunctions
Diffusion of carbon into BCC iron for 12 hours at a temperature of 5000C results in a carbon concentration of 0.2 wt% at a depth 2 mm from the surface. At what depth would the concentration be 0.2 wt%, if the diffusion occurred for 6 hours at 8000C?
Determine the engineering strains, e, and the true strains, ε, for each of the following:
Write the combustion equation for the complete combustion of methane in a furnace chamber with 200% theoretical air and 20% percent excess air. Take into account that some of the oxygen is lost to the surface wall material of the furnace. Find the ac..
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