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An electrically driven pump operating at steady state is used to draw water from a pond. At the pump inlet the pressure is 1 bar, and the mass flow rate is 50 kg/s. The pump outlet pressure is 5 bars. To a close approximation the pump performance is adiabatic, and changes in kinetic and potential energy are negligible. Assume the cost of electricity is 8.9 cents per kW.h. Determine the hourly cost of running the pump if the pump efficiency is 80%.
you are trying to loosen a bolt from a piece of metal with a wrench but fail. what kind of wrench should you look
High school Yr 12 aeronautical Engineering Module - mechanics, PLease help- i seem to get the incorrect answer but didn't know where i have gone wrong?
405-N rightward force is use to drag a large box across the floor with a constant velocity of 0.678 ms-1. The coefficient of friction between the box and the floor is 0.795. Determine the mass of the box.
a 150mm diameter shaft supporting a load of 10kn has a speed of 1500rpm. the shaft runs in a bearing whose length is
An unsuited free diver can work in a pressure of up to 490KN/m^2 and a suited diver in pressure of up to 1815 KN/m^2. Calculate the maximum depths at which they might work in sea-water which has a specific gravity of 1.03.
steam at a rate of 5 lbms enters an adiabatic turbine at 800 psia 1000 f and leaves at an actual condition of 10 psia
an air-standard diesel cycle operates with a compression ratio of 18. at the beginning of the compression process the
Determination of the open-loop system
Determine the phase or phases in a system consisting of H2O at the following conditions and sketch p-v and T-v diagrams shown the locations of each state?
Calculate the head provided by the pump and Calculate the brake power required if the pump efficiency is 75% (kW).
the sun is approximated as a spherical black body with a surface temperature of 5762 k. the irradiation from the sun as
neil a. armstrong was the first person to walk on the moon. the distance between the earth and the moon is 3.85 108 m.
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