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Both calculators run independently — change the inputs on either side to compare results.
Chemical Engineering
Fenske Equation Calculator
Compute the minimum number of theoretical equilibrium stages required for a binary distillation separation using the Fenske equation. The "best case" stage count at total reflux — actual columns need more stages because they operate at finite reflux.
Fill in the required fields to see your result.
Chemical Engineering
LMTD Heat Exchanger Calculator
Compute the log mean temperature difference (LMTD) — the effective driving force for heat transfer in a heat exchanger, given the four end-of-fluid temperatures. The standard input to the design equation Q = U·A·LMTD for sizing or rating exchangers.
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Key differences
| Fenske Equation Calculator | LMTD Heat Exchanger Calculator | |
|---|---|---|
| Category | Chemical Engineering | Chemical Engineering |
| Inputs required | 3 | 4 |
| Result | Minimum Theoretical Plates | LMTD (°C) |
| What it does | Compute the minimum number of theoretical equilibrium stages required for a binary distillation separation using the Fenske equation. The "best case" stage count at total reflux — actual columns need more stages because they operate at finite reflux. | Compute the log mean temperature difference (LMTD) — the effective driving force for heat transfer in a heat exchanger, given the four end-of-fluid temperatures. The standard input to the design equation Q = U·A·LMTD for sizing or rating exchangers. |