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LMTD Calculator

Log mean temperature difference

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LMTD Calculator
Log mean temperature difference
$$\Delta T_{lm} = \dfrac{\Delta T_1 - \Delta T_2}{\ln(\Delta T_1 / \Delta T_2)}$$
Counter-current: $\Delta T_1=T_{h,in}-T_{c,out}$, $\Delta T_2=T_{h,out}-T_{c,in}$. Counter-current always gives larger LMTD.
ΔT values must be positive.
Log Mean ΔT
—°C
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