Assignment 3 L- Gasoline at 20"C (p - 680 Kg /m' ,y = 667A N /m') is pumped through 12 cm pipeline L0 Km long at Q=75m3 /h. the inlet is fed by a pump at inlet pressure of 24 atm. The exit is at standard atmospheric pressure and is 150 m higher. Estimate the frictional head loss hrand compare it the with the velocity head ,L (These numbers are quite realiStic for fluid through long pipeline) Z- Air I R=287 J/KgK,Cp=1005 I/Kg K ] flows steadily as shown in figure through turbine that produces 25 Kw. For the shown inlet and exit conditions. Calculate: . The exit velocity o The heat transferred Yr=30m,/s D =20cm Pr=1Obar tr=150? v2=a ln/s Dz=20cm Pz=3bar T:=3? .) J- Air I R=287 l/Ke K, Cp=1005 f/Kg K ] a compressors that produces 20 Kw. Calculate: . The exit velocity . The heat transferred flows steadily as shown For the shown inlet and in figure through exit conditions. Vr=10rn/s Dr=1ilcm Pr=3bar tr=50? zr=10m Vz=? m/s Dz=10nn Pz=15bar Tz=124? Zz=ZOnt --->
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Assignment 3
L- Gasoline at 20"C (p - 680 Kg /m' ,y = 667A N /m') is pumped through 12 cm
pipeline L0 Km long at Q=75m3 /h. the inlet is fed by a pump at inlet pressure of24 atm. The exit is at standard atmospheric pressure and is 150 m higher.
Estimate the frictional head loss hrand compare it the with the velocity head ,L(These numbers are quite realiStic for fluid through long pipeline)
Z- Air I R=287 J/KgK,Cp=1005 I/Kg K ] flows steadily as shown in figure throughturbine that produces 25 Kw. For the shown inlet and exit conditions.Calculate:
. The exit velocityo The heat transferred
Yr=30m,/s
D =20cmPr=1Obar
tr=150?
v2=a ln/sDz=20cmPz=3bar
T:=3?
.)J- Air I R=287 l/Ke K, Cp=1005 f/Kg K ]
a compressors that produces 20 Kw.
Calculate:
. The exit velocity
. The heat transferred
flows steadily as shown
For the shown inlet and
in figure throughexit conditions.
Vr=10rn/sDr=1ilcm
Pr=3bar
tr=50?
zr=10m
Vz=? m/sDz=10nn
Pz=15bar
Tz=124?
Zz=ZOnt
--->
4- A hydroelectric power plant takes in 30m3/s of waterthrough its turbine anddischarge it to atmospheric atvz=Zm/s, the headpenstock system hr=20m. assuming turbine flow
Ioss in the turbine and
s.=I.06 estimate the power in
Datum
5- The pump figural delivers water (p=103Kg /m3) to a machine at section 2 whichis 7 m higher than the reservoir surface. The Iosses between 1 and 2 are given
by hr - K* where k=7,5(dimensionlessJ take cr=L.07.find the horse power
required for the pump if it is B0%o efficient.Pr=1bar:rbs
Zr=0m
Q-s0l/s Dz=10cm
Zz=7m
Pz=1bar
ru
Ain Shams UniversitY
Faculty of Engineering
New Program
ENGR 350 Fluid Mechanics IIAssignment 3
Presented to: Prof. El-S amafioudy
Presented by: Ahmed Hassan Ibrahim
P.MANF
Assignment 3
L- Gasoline at 20'C (p - 68O Kg /m3 ,y = 6670 N /m') is pumped through 1.2 cm
pipeline 10 Km long at Q=75m3 /h. the inlet is fed by a pump at inlet pressure of24 atm. The exit is at standard atmospheric pressure and is 150 m higher.
Estirnate the frictional head loss hr and compare it the with the velocity heacl L
[These numbers are quite realistic for fluid through long pipelineJ
i,r "$, -\
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v"i..
lrt'"
-7tr7J \
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if:4.l
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2- Air [R=287 l/KgK, Cp=1005 l/KgK] flows steadily as shown in figure throughturbine that produces 25 Kw. For the shown inlet and exit conditions.Calculate:
3- Air [R=287 J/KgK, Cp=1005 l/KSK] flows steadily as shown in figure througha compressors that produces 20 Kw. For the shown inlet and exit conditions.Calculate:
o The exit velocify. The heat transferred
Vr=1Om/sDr=10cur
Pt=3baltr=5OFc
zr='10m
V:=? nr/sD:=10cm
P:=15barT:=12ODc
Zz=ZOrn
Iot
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4- A hydroelectric power plant takes in 30m3/s of water through its turbine and
discharge it to atmospheric atvz=Zm/s, the head loss in the turbine and
penstock system hr=Z0m. assttming turbine flow a=L'06 estimate the power in
MW extracted bY turbine'
el L)"L
B, E be{w"un
-g- + {.V" + ZlY '3
i
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zt t.'{rL*
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*/
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r lE)e3. +323" q3 A4W
5- The pump figural delivers water (p=103K9 /m=) to a machine at section 2 whichis 7 m higher than the reservoir surface. The losses .between 1 and 2 are given
,r2by hr - K:- where k=7.5(dimensionless) take a=1.07. find the horse power