Oil is pumped from a lower tank to an elevated spherical tank. The lower tank is vented to the atmosphere, and the spherical tank is pressurized to 240 kPa. The suction line has a length of 2.5m. The discharge line has a length of 90m. The pipe diameters are given below. The design flowrate is 20L/s. Calculate the following: total pump head, Hr •The WHP -The BHP if the pump efficiency is 80% H₂ WHIP BHP m hp hp INT ENTRANCE FULLY →LENGTH S SUCTION= 2.5m DISCHARGE 90m PIPEDIA: SUCTION LINE DISCHARGE LINE STEEL PIPE 2-240 kPa PUMP 75 mp 65 mm SWING BUITEMPLY VALVE
Oil is pumped from a lower tank to an elevated spherical tank. The lower tank is vented to the atmosphere, and the spherical tank is pressurized to 240 kPa. The suction line has a length of 2.5m. The discharge line has a length of 90m. The pipe diameters are given below. The design flowrate is 20L/s. Calculate the following: total pump head, Hr •The WHP -The BHP if the pump efficiency is 80% H₂ WHIP BHP m hp hp INT ENTRANCE FULLY →LENGTH S SUCTION= 2.5m DISCHARGE 90m PIPEDIA: SUCTION LINE DISCHARGE LINE STEEL PIPE 2-240 kPa PUMP 75 mp 65 mm SWING BUITEMPLY VALVE
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Oil is pumped from a lower tank to
an elevated spherical tank. The
lower tank is vented to the
atmosphere, and the spherical tank
is pressurized to 240 kPa. The
suction line has a length of 2.5m.
The discharge line has a length of
90m. The pipe diameters are given
below. The design flowrate is 20L/s.
Calculate the following:
• total pump head, HT
• The WHP
• The BHP if the pump efficiency is
80%
H₂
WHIP
BHP
m
BHP₂
HT2
N₂
hp
hp
The pump in the problem above is
initially running at 900 rpm. If the
flowrate is adjusted to 12L/s,
calculate the adjusted bhp, and
pump head, and change in speed.
m/s
ENTRANCE
FULLY
GATE
VALVE
Poll = 920 kg/m³
Voll = 0.1 x 10-³ m²/s
+LENGTH:
→PIFE
SUCTION W 2.5m
DISCHARGE - 90m
DIA:
SUCTION LINE
DISCHARGE LINE
STEEL PIPE
PUMP
P240 kPa
SWING-
TYPE
CHECK
VALVE
75 mp
65 mm
BUITEMPLY
VALVE
For the k values of minor losses and friction factor, refer
to our previous lecture handouts.
Attach all necessary graphs or figures in your solution.
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