1. ©GoldSim Technology Group LLC., 2012 Making Better Decisions in an Uncertain World Pump Station Simulation

2. ©GoldSim Technology Group LLC., 2012 Webinar Overview Modeling Pumps Pump head-discharge relationship System head curves Pump controls Pump power and cost Examples

3. ©GoldSim Technology Group LLC., 2012 Modeling Pumps Power costs Environmental controls Facility upgrades Risk management System constraints Operational decisions

4. ©GoldSim Technology Group LLC., 2012 Methods Simple mass balance with limits and targets –Monthly to annual timesteps –Focus is on limits of flow rather than the ranges of flow Pump curves and control algorithms –Accurate accounting of costs –Control theory –High friction losses in conveyance –Risk of failure, maintenance, replacement

5. ©GoldSim Technology Group LLC., 2012 Pump Head Discharge Relationship Shutoff Head Design Point Maximum Flow

6. ©GoldSim Technology Group LLC., 2012 Pump Curves

7. ©GoldSim Technology Group LLC., 2012 System Head Curves Static Head Headloss Pump Operating Point System Head Pump Head

8. ©GoldSim Technology Group LLC., 2012 System Curves

9. ©GoldSim Technology Group LLC., 2012 Pump Efficiency Pump Operating Point Pump Head 50 55 60

10. ©GoldSim Technology Group LLC., 2012 Pump Controls System Sensor Difference Reference Point Controller Pump

11. ©GoldSim Technology Group LLC., 2012 Deadband and Schmitt Trigger

12. ©GoldSim Technology Group LLC., 2012 Pump Power and Cost

13. ©GoldSim Technology Group LLC., 2012 Questions? Jason Lillywhite, P.E. For a free trial version of the software, visit: www.goldsim.com