Pump VFD Analysis | Data Entry
[
NOTE:
All data entries correspond to the single-fan configuration, even when evaluating alternative setups.
]
🛠️ Core Data Entry:
Rated Rotational Speed of Pump:
rpm
Select Desired Configuration:
Select arrangement
Single
Series
Parallel
[
🧠 NOTE:
If system is closed, set inflow pressure equal to outflow
pressure, and elevation difference to zero.
]
Pressure at Intake to System:
psig
Pressure at Outflow of System:
psig
Elevation Difference Between Intake and Outflow:
ft
Total Length of Pipework:
ft
Pipe Roughness (Epsilon):
ft
Kinematic Viscosity of Fluid:
ft²/sec
Density of Working Fluid:
lb/ft³
Inside Diameter of Pipe:
ins
Total K-value for System:
-
Total Loss Due To Other Fixed-loss Components:
ft
Cost Per KWh of Electricity:
$/KWh
Minimum Flow Allowable to Avoid Region of Instability:
x1000 gpm
🛠️ Data For Pump Curve:
Number of triples | (Flow, Head, Efficiency):
[
🛠️ NOTE:
Ensure data points include those associated with dead-head
and maximum flow conditions to avoid extrapolation pitfalls.
]
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