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Agitator Design Spreadsheet Version 1.2 December 20, 2017 pvtools.weebly.com 1/7 Code - EEUA
Agitator Design Spreadsheet
Version 1.2
December 20, 2017
pvtools.weebly.com
1/7
Code - EEUA
Inputs
InputsMOC of Vessel / Shaft
Type of ImpellerMotor HP (cal. available)Sweep Dia. of Impeller
Shaft Dia. (cal. available)Vessel Dimension
For Shaft Dia. Cal.Vessel MOCOutput RPM
Motor HPVessel Dimension
Sweep Dia. of Impeller
For Motor HP Cal.Liquid Density
Liquid ViscosityOutput RPM
Baffle/Unbaffle vesselType of Impeller (Np)
Vessel DiameterSweep Dia. of Impeller
Impellers Np Graph available for design cal.
Inputs for Reynolds Number (Nre) Cal. : Liquid density & viscosity, Output RPM, Sweep dia.
Anchor
Vessel MOC SS304 Motor Position VerticalLiquid Density p 1498 kg/m3 Motor HP 5Liquid Viscosity µ 12 CP Motor HP Req. 4.2
0.012 N.s/m2 Shaft SealRequired Rotation N 90 RPM Shaft Support
1.5 RPS Baffle Yes
Power Number Np 5 (as per graph)Reynolds Number Nre 69675.73 SHAFT DIA
MOTOR HP CALC. INPUTS COMMON
Single MechanicalRequired
75
388
1830 ID
90
2700
72.95 SHAFT DIA. REQ.75 SHAFT DIA.
610 SWEEP DIA.
400388
Chemineer HE-3 (Hydrofoil)
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Input Sheet
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Agitator Design Spreadsheet
Screenshots
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Agitator Design Spreadsheet
Output - Sample Drawing (A2 Size)
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Agitator Design Spreadsheet
How to use Np GraphExample : Vessel Dia. 1830, Liquid density 1498 kg/m3, Viscosity 12 CP, 90 RPM, Turbine Impeller 610 dia.What will be the power required to operate the mixer if the tank was baffled? Also check without baffleSolution (a) baffled
Solution (b) unbaffled
Vessel MOC SS304 Motor Position Vertical
Liquid Density p 1498 kg/m3 Motor HP 5
Liquid Viscosity µ 12 CP Motor HP Req. 4.8
0.012 N.s/m2 Shaft SealRequired Rotation N 90 RPM Shaft Support
1.5 RPS Baffle Yes
Power Number Np 6 (as per graph)Reynolds Number Nre 69675.73
Single Mechanical
Required
1830 ID
1830 ID
Vessel MOC SS304 Motor Position Vertical
Liquid Density p 1498 kg/m3 Motor HP 3
Liquid Viscosity µ 12 CP Motor HP Req. 2.1
0.012 N.s/m2 Shaft SealRequired Rotation N 90 RPM Shaft Support
1.5 RPS Baffle No
Power Number Np 1.1 (as per graph)Reynolds Number Nre 69675.73
Single Mechanical
Required
610 SWEEP DIA.
610 SWEEP DIA.
6
69675 Nre
69675 Nre
1.1
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Agitator Design Spreadsheet
Demo Video
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