TeachingPartners’Presenta/ons
Wednesday11:30am-12:30pm
January20,2016
Title:Incorpora=ngEXCELinDesigningPumpsina
FluidMechanicsCourse
.Dr.TapasK.Das,P.E.
AssistantProfessor
UniversityofWisconsin-StevensPoint
DepartmentofPaperScience&Engineering
SCID282
tapas.das@uwsp.edu;Ph:715-346-2676
VariousTypesofPumps
•
•
•
•
•
•
•
Centrifugalpump
Posi=vedisplacementpump
Gearpump
Screwpump
Peristal=cpump
Fanpump
Waterpump
FivePumpsWorkinginthe
PaperMakingMachine
•
•
•
•
•
ThePulperPump
StockTank1Pump
Stocktank2Pump
MixChestPump
FanPump
ExampleCalculations:StockTank2PumpHorsepower
KnownVariables:
Diameter–2in=0.166ft
PipeLength–20.58ft
FlowRate–107.4gpm=.2395cfs
Efficiency–70%
#of90DegreeTurns–6
Ks–0.002in(Wroughtironorsteel)
Water
Pulp
2
2
!"#$%&'"( !"#$%#"&'~1.06!10!! ft /s
!=
!" =
!"#$%&'"( !"#$%#"&' ~ 20ft /s
!
0.2395 !"#
!"
=
= 10.98 !!
0.166!" !
!
!
!
4
4
!=
!"
!" (0.166!")(10.98 ! )
=
= 172697
!" !
!
. 0000106
!
0.25
!!
5.74 !
(log!" (
+
))
3.7!
!"
0.25
=
= 0.02
0.002 !"
5.74
(log!" (
+
))!
3.7(2 !") 172697
ℎ! =
!!
!
)(! +
2!
!
!" !
!
!"
2 32.2 !
!
10.98
. 02
!=
!! )
20.58!"
+ 6 0.16
0.166!"
!"
!" (0.166!")(10.98 ! )
=
= 0.0915
!" !
!
20
!
0.25
!!
5.74 !
(log!" (
+
))
3.7!
!"
0.25
=
= 0.08
0.002 !"
5.74 !
(log!" (
+
))
3.7(2 !") 0.0915
!=
ℎ! = (
!" =
!
0.2395 !"#
!"
=
= 10.98 !!
0.166!" !
!
!
!
4
4
ℎ! = (
ℎ! =
!!
!
)(! +
2!
!
!" !
!
!"
2 32.2 !
!
10.98
. 08
!! )
20.58!"
+ 6 0.16
0.166!"
ℎ! = 4.84!"
ℎ! = 19.37!"
!"#
!"ℎ! 62.3 !" ! (0.2395 !"#)(4.84!")
!=
=
Ƞ
70%
!"#
= 103.16
= !. !"# !"
!
!"#
!"ℎ! 62.3 !" ! (0.2395 !"#)(19.37!")
!=
=
Ƞ
70%
!"#
= 412.88
= !. !" !"
!
PipeRoughness,Ks,forVariousMaterials
Conclusion
•  Microso\Excelisapowerfultoolthat
featurescalcula=on,graphingtools,pivot
tables,andamacroprogramminglanguage
calledVisualBasicforApplica=ons.Ithasbeen
averywidelyappliedspreadsheetforthese
pla_orms.