In a chemical factory, water (at 20C) is taken from a well and transported to a heat exchanger for the cooling process at a flow rate of 16 m3/h. The water delivery system is shown in Figure Q3.1. The pipeline is composed of 3 inch nominal (88.9/4.05 mm) plastic pipes containing 4 globe valves, and 4 elbows (90). Water is taken 1.5 m below the surface of liquid level in the well. a. What is the static head of the system? b. Decide which pump is suitable for this delivery system. c. Calculate the power transferred to the fluid by the pump. d. Find the electrical power of the pump from Figure Q3.2 and calculate the efficiency of the pump.
In a chemical factory, water (at 20C) is taken from a well and transported to a heat
exchanger for the cooling process at a flow rate of 16 m3/h. The water delivery system is
shown in Figure Q3.1. The pipeline is composed of 3 inch nominal (88.9/4.05 mm)
plastic pipes containing 4 globe valves, and 4 elbows (90). Water is taken 1.5 m below
the surface of liquid level in the well.
a. What is the static head of the system?
b. Decide which pump is suitable for this delivery system.
c. Calculate the power transferred to the fluid by the pump.
d. Find the electrical power of the pump from Figure Q3.2 and calculate the efficiency of
the pump.
e. What is the NPSH of the pump at the operating flow rate?
f. Calculate the NPSH of the liquid. Is the pump selected suitable for this delivery
system? (Before the pump, the pipeline contains 1 globe valve, and 1 elbow (90))
![(m)
NK 50-200
17
50 Hz, n 1450 min
ISO 9906 Area A
16
70%
15
0210
71 %.
718%
14
71%
13
-71.8%
70%
12-
71.7%
717%
10
e170
71.7
nss!
16
24
32
48
56 a (mh)
P2
28
219
244
0210
20
e200
NPSH
Im]
1.0+
0180
1.2
0170
NPSH.
04
0.0
50 a (mh)
16
24
48](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0eed9a10-77bb-414e-a903-cbfe13f5ed00%2F80789ca3-fbe3-4824-9719-06b679fa15fc%2Fbdz61lt_processed.png&w=3840&q=75)
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