PO.ESP.Curve.Efficiency
Description
Interpolates efficiency from pump performance curve, [fraction].
Syntax
=PO.ESP.Curve.Efficiency(Q, curve_Q, curve_Eff)Parameters
| Parameter | Description |
|---|---|
| Q | Flow rate, [bbl/d]. |
| curve_Q | Array of flow rates, [bbl/d]. |
| curve_Eff | Array of efficiency values, [fraction]. |
SI Unit Version
Lambda Name
PO.ESP.Curve.Efficiency.SIFormula
=LAMBDA(Q, curve_Q, curve_Eff, LET(
Q_bbld, PO.UnitConverter(Q, "m3/d", "bbl/d"),
curve_Q_bbld, MAP(curve_Q, LAMBDA(q, PO.UnitConverter(q, "m3/d", "bbl/d"))),
PO.ESP.Curve.Efficiency(Q_bbld, curve_Q_bbld, curve_Eff)))SI Parameters
| Parameter | Unit | Description |
|---|---|---|
Q |
m3/d | Flow rate, [m3/d] |
curve_Q |
m3/d | Array of flow rates, [m3/d] |
curve_Eff |
- | Array of efficiency values, [fraction] |
How to save as a reusable Excel function
LAMBDA is a built-in Excel feature (Microsoft 365) that lets you create custom functions without VBA. The formula above works as-is when pasted into a cell.
To save a LAMBDA as a reusable named function:
- Go to Formulas → Name Manager → New
- Enter a name, e.g.
PO.ESP.Curve.Efficiency.SI - In Refers to, paste the LAMBDA formula without the trailing invocation
(...) - Click OK
Now use =PO.ESP.Curve.Efficiency.SI(...) anywhere in your workbook.