(and facilities and force mains, oh my)!
Transcript of (and facilities and force mains, oh my)!
Speaker Bio
Adam Rose, PE, GISP 14+ years modeling experience Sanitary Product Manager
Father of 3 Tinkerer
Series Information
Comment! We can incorporate into later webinars
Introduction Wet Weather Calibration Pumps! Validation
Review
Copy of first presentation: http://xps.link/ss1 Copy of second presentation: http://xps.link/ss2 Copy of third presentation: http://xps.link/ss3 Major Comments: Guidelines? WaPUG, Rules for Responsible Modeling http://xps.link/wapug
Validation v. Calibration
Calibration Source Usage
Actual Data 50%
Historical/Field Intuition 24%
Your Gut/Intuition 11%
Another Method 10%
Another Model 6%
Quick Overview Reality vs. Model Important Features Examples
Pumps Storage Force mains Controls
How we can model this madness
Pumps Agenda
Don’t be confused! Spot the difference
Helpful hint: think function, not form Head, flow, speed, logic
Reality vs. Model
vs.
Pump Choices:1. Pump Location: submerged or dry2. Displacement type: positive or centrifugal (or axial)3. Motor speed: variable or fixed4. Orientation: horizontal or vertical5. Appurtenances: grinders, screens
Pumps: Reality
http://sswm.info
Pump Choices:1. Head Type: Dynamic or Static2. Rating Type: Node depth or wet well volume3. Motor Type: Variable or fixed speed4. Logic: Simple or remote/complex flow control
Pumps: Model
4 Basic Types
Examples: Model
Type Based On CurveTypically
Location Speed
1 Wet Well Volume Incremental Off-Line Fixed
2 Inlet Node Depth Incremental In-Line Fixed
3 Outlet - Inlet Head Continuous In-Line Fixed
4 Inlet Node Depth Continuous In-Line Variable
Logic, per time step
Notes No start/stop levels A value of 0 can be used in the curve Least popular pump option
#1 - xpswmm
WETWELL
Volume Curve Pump Flow
Logic, per time step
Notes No start/stop levels A value of 0 can be used in the curve During low flow the pump will automatically reduce flow
#2 - xpswmm
Inlet Depth Curve Pump
Flow
Logic, per time step
Notes: If u/s water elevation is above the start the pump will operate Popular pump option
#3 - xpswmm
Δ us/ds Curve Pump Flow
Nothing Horsepower Design Point 3 Point Curve Factory Testing Field Testing
Dynamic Pump Data
Better
Q*H*C/e4/3*H 0
H Q0 2Q
\_(ツ)_/
Logic, per time step
Notes: If u/s water elevation is above the start the pump will operate
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US Water Depth Curve Pump
Flow
Variable Speed Use incremental pumps or special control item
Depth Controlled (not at lift station) Special control item
Other Pump Types
Summary
Reality ModelH-Q
Levelslocation, displacement type, orientation, appurtenances,
motor type, generator settings, PLC, power supply,
etc…
coatings, materials, thrust restraints, cranes, access
panels, start-up/ shut-down procedures,
Upstream elevation, downstream elevation, name,
description, network topology
GIS data, CAD data, SCADA data, gauge data, calibration data,
scenario, real-time control features, etc…
the head/flow/[speed] relationship
the settings for when pumps are on/off
Simplified Purpose: defeat gravity ($) Reality vs. Model
Attenuation Note!
Force Main Discussion
Sr82lee.com
Simplified Purpose: make smarter choices Reality vs. Model
Some Types Simple level sensors SCADA (various types/sensors) Level Metered flow (VFD)
Logic: Pump Control
Watertreatmentprocess.net
Pump input page review
Inferred Values
Pump/model start-up
Upstream > Downstream
Gotchas!!!
1
3
2
4DEPTH
ELEVATION
1. Build from scratch Ideal Ingredients: pump curves, wet well plans
2. Working Examples…
Demonstrations
Summary
FORM: Reality <> Model FUNCTION: Reality ~= Model
Need more help? Consider training!
XPSWMM :: knowledge base articles, support portal
Don’t forget: FINAL WEBINAR coming up next!
Thank you for joining this presentation,
Pumps!by
Adam Rose PE, [email protected]
Contact XP SolutionsAmericas: +1 888 554 5022 [email protected] Pacific: +61 7 3310 2302 [email protected]: +44 0 1635 582555 [email protected]
www.xpsolutions.com
Questions? Comments?