agitator power requirement and mixing intensity calculation
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Calculo de agitadores industrialesTRANSCRIPT
DataReactor Geometry6Diameter of the reactorT=1.100=3.609ft=1.100m0.30483.60892388450.30483.11679790030.30483.11679790036Height of the cylindrical portionH=0.950=3.117ft=0.950m1mile1.89E-040.00068350821mile1.89E-040.00059030251mile1.89E-040.00059030256Liquid level height in the reactor from bottomZ=0.950=3.117ft=0.950m2yard0.33333341.20297486882yard0.33333341.03893284122yard0.33333341.0389328412Total Volume of the reactorV=1.04m3=36.54ft33ft13.60892388453ft13.11679790033ft13.11679790034in1243.30708661424in1237.40157480314in1237.40157480315km3.05E-040.00115km3.05E-040.000955km3.05E-040.000951Select the type of AgitatorPitched Blade Turbine6m3.05E-011.16m3.05E-010.956m3.05E-010.954D/T Ratio0.57cm3.05E+011107cm3.05E+01957cm3.05E+0195Agitator rpmN=120rpm=2.000rps8mm3.05E+0211008mm3.05E+029508mm3.05E+029509micron3.05E+0511000009micron3.05E+059500009micron3.05E+05950000Fluid PropertiesDensity=999.97kg/m3Viscosity=100cp=0.1kg / msChemineer HE31.00E+000.25Wide Hydrofoil2.00E+000.3Pitched Blade Turbine3.00E+000.4CalculationRushton 6 Blade4.00E+000.5180 Degree Concave1) Reynolds Number0.5Diameter of the agitatorD=0.6m=1.80ftReynolds NumberRe=60502)Power RequirementPower NumberNp=1.1Select the value from Power number chart based on Reynolds numberPower RequiredP=0.74hpUse 5.5 for Rushton six blade turbine & 3.2 for concave 180 degree turbine(Assuming 80% Loading)3) Mixing IntensityPumping NumberNq=0.55Select the value from Pumping number chart based on Reynolds numberEquivalent DiameterTeq=3.60ftUse 0.72 for Rushton six blade turbine & 0.7 for concave 180 degree turbineVolumetric flow rateQ=6.5ft3/secCross sectional areaA=10.2ft2VelocityV=0.632ft/sec4) Agitator requiredNo of Agitators Required=2Z/T=0.860.25Chemineer HD30.3Wide Hydrofoil0.4Pitched Blade Turbine0.5Rushton 6 Blade Turbine180 Degree Concave
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Agitator TypesWide HydrofoilPitched Blade turbine180 degree concave
Flow Patterns
Impeller clearance & Spacing
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Mixing Intensity
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Np for - Chemineer HE3Power NumberNarrow HydrofoilPower NoReynolds NoD/T=0.25D/T=0.3D/T=0.4D/T=0.51000.730.710.690.682000.530.520.490.463000.470.450.420.45000.410.390.370.358000.380.370.340.3212000.360.340.320.330000.330.320.30.28100000.330.320.290.27
Np for - Chemineer HE3
D/T = 0.25D/T = 0.3D/T = 0.4D/T = 0.5Reynolds NumberPower NumberPower Number Curve for Chemineer HE3
Np for - Wide HydrofoilWide HydrofoilPower NoReynolds NoD/T=0.25D/T=0.3D/T=0.4D/T=0.51002.282.242.152.112001.781.751.691.653001.561.531.481.455001.31.291.241.238001.141.121.091.0812001.091.081.051.0330001.061.0510.98100001.061.0510.98
Np for - Wide Hydrofoil
D/T=0.25D/T=0.3D/T=0.4D/T=0.5Reynolds NumberPower NumberPower Number Curve for Wide Hydrofoil
Np for PBTPitched BladePower NoReynolds NoD/T=0.25D/T=0.3D/T=0.4D/T=0.51002.142.142.142.142001.751.751.751.723001.61.61.61.65001.461.461.461.468001.381.381.381.3812001.371.371.371.3730001.371.371.371.37100001.371.371.371.37
Np for PBT
D/T=0.25D/T=0.3D/T=0.4D/T=0.5Reynolds NumberPower NumberPower Number curve for Pitched blade turbine
Np RT & 180 Deg concaveRushton 6 BladeReynolds NoPower NoD/T=0.25D/T=0.3D/T=0.4D/T=0.51005.55.55.55.52005.55.55.55.43005.55.55.55.55005.55.55.55.58005.55.55.55.512005.55.55.55.530005.55.55.55.5100005.55.55.55.5180 Degree ConcaveReynolds NoPower NoD/T=0.25D/T=0.3D/T=0.4D/T=0.51003.63.63.63.62003.23.23.23.153003.23.23.23.25003.23.23.23.28003.23.23.23.212003.23.23.23.230003.23.23.23.2100003.23.23.23.2
Nq - Chemineer HE3Chemineer HE3Reynolds NoPower NoD/T=0.25D/T=0.3D/T=0.4D/T=0.51000.330.310.30.32000.340.330.320.323000.360.350.340.345000.380.360.360.358000.430.420.410.3912000.450.440.430.4130000.510.470.450.44100000.570.550.530.51
Nq - Chemineer HE3
D/T=0.25D/T=0.3D/T=0.4D/T=0.5Reynolds NumberPumping NumberPumping Number curve for HE3 Impeller
Nq - Wide HydrofoilWide HydrofoilReynolds NoPower NoD/T=0.25D/T=0.3D/T=0.4D/T=0.51000.440.410.360.352000.540.480.430.43000.580.510.450.435000.640.570.510.468000.670.60.540.4812000.710.620.570.530000.770.690.620.55100000.80.730.630.56Pitched BladeReynolds NoPower NoD/T=0.25D/T=0.3D/T=0.4D/T=0.51000.450.420.370.362000.550.50.450.413000.60.540.480.445000.660.610.540.478000.70.650.570.512000.740.670.60.5230000.820.750.660.57100000.880.80.680.6
Nq - Wide Hydrofoil
D/T=0.25D/T=0.3D/T=0.4D/T=0.5Reynolds NumberPumping NumberPumping Number curve for Wide Hydrofoil
Nq PBTPitched BladeReynolds NoPower NoD/T=0.25D/T=0.3D/T=0.4D/T=0.51000.450.420.370.362000.550.50.450.413000.60.540.480.445000.660.610.540.478000.70.650.570.512000.740.670.60.5230000.820.750.660.57100000.880.80.680.6
Nq PBT
D/T=0.25D/T=0.3D/T=0.4D/T=0.5Reynolds NumberPumping NumberPumping Number curve for PBT
Nq - Rushton & 180 deg concaveRushton 6 bladeReynolds NoPower NoD/T=0.25D/T=0.3D/T=0.4D/T=0.51000.70.70.70.72000.720.720.720.723000.720.720.720.725000.720.720.720.728000.720.720.720.7212000.720.720.720.7230000.720.720.720.72100000.720.720.720.72180 Degree ConcaveReynolds NoPower NoD/T=0.25D/T=0.3D/T=0.4D/T=0.51000.680.680.680.682000.70.70.70.73000.70.70.70.75000.70.70.70.78000.70.70.70.712000.70.70.70.730000.70.70.70.7100000.70.70.70.7