Pump System Improvement Modeling Tool (PSIM)

Educational tool for understanding hydraulic behavior of pumping systems.

Automatic pump curve viscosity corrections
Centrifugal pumps
Energy cost over time
Flow control values
Impeller trimming
NPSH calculations
Positive displacement pumps
Pressure control values
Pump energy usage
Pump vs system curves
Pump efficiency and BEP evaluation
System hydraulic calculations
Variable speed pumps

http://www.pumpsystemsmatter.org/content_detail.aspx?id=110