PO.FA.Hydrate.dT
Description
Calculates temperature depression from inhibitor using Hammerschmidt equation, [°F].
Syntax
=PO.FA.Hydrate.dT(W, M, K)Parameters
| Parameter | Description |
|---|---|
| W | Inhibitor concentration in aqueous phase, [wt%]. |
| M | Inhibitor molecular weight, [g/mol]. |
| K | Hammerschmidt constant (2335 for methanol, 2700 for MEG), [°F]. |
SI Unit Version
Lambda Name
PO.FA.Hydrate.dT.SIFormula
=LAMBDA(W, M, K, LET(
result_degR, PO.FA.Hydrate.dT(W, M, K),
PO.UnitConverter(result_degR, "degR", "degK")))SI Parameters
| Parameter | Unit | Description |
|---|---|---|
W |
- | Inhibitor concentration in aqueous phase, [wt%] |
M |
- | Inhibitor molecular weight, [g/mol] |
K |
degF | Hammerschmidt constant (2335 for methanol, 2700 for MEG), [degF] |
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.FA.Hydrate.dT.SI - In Refers to, paste the LAMBDA formula without the trailing invocation
(...) - Click OK
Now use =PO.FA.Hydrate.dT.SI(...) anywhere in your workbook.