2013 FMA Presentation - Pump Station Modeling for Interior Drainage
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Transcript of 2013 FMA Presentation - Pump Station Modeling for Interior Drainage
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Schaaf & WheelerConsulting Civil Engineers
Pump Station Modelingfor Interior Drainage
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Schaaf & Wheeler 2 9/5/2013 Consulting Civil Engineers
Presentation OverviewProject TeamWhy ImportantPump Station BasicsCase StudyModel IntegrationPearls of Wisdom
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Schaaf & Wheeler 3 9/5/2013 Consulting Civil Engineers
Why Bother?Impacts FloodingCost ImpactsMore Development
in Pump Dependent Areas
Risk of FailureModel Uncertainty
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Schaaf & Wheeler 4 9/5/2013 Consulting Civil Engineers
Pump Station BasicsHow they workTypesElements
• Wetwell• Pumps• Forcemain• Outfall
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Schaaf & Wheeler 5 9/5/2013 Consulting Civil Engineers
From Field Into Model
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Schaaf & Wheeler 6 9/5/2013 Consulting Civil Engineers
From Field Into Model
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Schaaf & Wheeler 7 9/5/2013 Consulting Civil Engineers
Pump CurvesIf a Performance Curve is Available
• Head-Capacity• Horsepower• EfficiencyIf Not Available
• Field Testing• Gages• SCADA• Name Plate
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Schaaf & Wheeler 8 9/5/2013 Consulting Civil Engineers
Accounting For Losses
excel
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Schaaf & Wheeler 9 9/5/2013 Consulting Civil Engineers
Accounting For LossesDerate the Pump Curve
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Schaaf & Wheeler 10 9/5/2013 Consulting Civil Engineers
Accounting For LossesDerate the Pump Curve
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Schaaf & Wheeler 11 9/5/2013 Consulting Civil Engineers
Set levelsImpact Storage
Volume at PeakPump CyclingPower UsePump Damage
Pump Cylcing Graph
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Schaaf & Wheeler 12 9/5/2013 Consulting Civil Engineers
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Schaaf & Wheeler 13 9/5/2013 Consulting Civil Engineers
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Schaaf & Wheeler 14 9/5/2013 Consulting Civil Engineers
OutfallsHow they impact
modelStatic vs VariableTidal Why is this
important to modelers?
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Schaaf & Wheeler 15 9/5/2013 Consulting Civil Engineers
Cases Study – North San JoseLocationLandscapeMultiple Pump
Stations
Would that topoimage be better here to describe the problem?
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Schaaf & Wheeler 16 9/5/2013 Consulting Civil Engineers
Constant Flow
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Schaaf & Wheeler 17 9/5/2013 Consulting Civil Engineers
Manufacturer’s Pump Curves
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Schaaf & Wheeler 18 9/5/2013 Consulting Civil Engineers
Derated Pump Curves
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Schaaf & Wheeler 19 9/5/2013 Consulting Civil Engineers
Stage
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Schaaf & Wheeler 20 9/5/2013 Consulting Civil Engineers
Pump Discharge
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Schaaf & Wheeler 21 9/5/2013 Consulting Civil Engineers
Modeling Constraints Data
Missing pump curvesPipe sizesLayout
Improvements and New StationsMultiple pumpsSite constraintsEnvironmental concernsWet WellsCycling/Set Levels
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Schaaf & Wheeler 22 9/5/2013 Consulting Civil Engineers
ConclusionLimit UncertaintyDerate Your Pump Curves!Take into Account ConstructabilityConsider Operations ConstraintsDon’t Master Plan a PS Won’t WorkAsk a Design Engineer
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Schaaf & Wheeler 23 9/5/2013 Consulting Civil Engineers
Questions?