Question: 1 . ( 2 5 pt ) The pump delivers water at 6 8 deg F ( = 1 . 9 3 7 slug /

1.(25 pt) The pump delivers water at 68 deg F ( =1.937slug/ft3
,
=2.09x105 lbf-s/ft2) from the lower reservoir to the upper reservoir at a rate of
1000 gpm. Both reservoirs are open to the atmosphere through vents. The pipe is
commercial steel, 6 in Schedule 40(inner diameter 6.065 in). The total combined
length of suction and discharge pipes is 200 ft. The pipe system has one globe
valve and 3 standard 90 deg elbows. Assume the entrance to the pipe from the
lower reservoir to be inward projecting. Note that ft for the expressions in the
loss coefficients table are not length. They are a factor that multiplies the number
to get K. Use ft=0.018
(a)(5pt) State all minor losses and give the loss coefficient for each. Sum the loss
coefficients and give total loss coefficient.
(b)(5 pt) Calculate the total friction loss (major and minor).
(c)(10 pt) For the conditions given in the figure below, compute the head, hp , delivered
by the pump.
(d)(5 pt) Compute the power added to the fluid by the pump in horsepower and the
power that must be supplied by the motor if the pump efficiency is 75 percent.

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