LMTD Calculator – Log Mean Temperature Difference — Free Online Tool
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LMTD Calculator – Log Mean Temperature Difference

Calculate log mean temperature difference for heat exchangers

Instructions: Select the flow arrangement, enter the hot and cold fluid inlet and outlet temperatures to compute the Log Mean Temperature Difference (LMTD).
Heat Exchanger Parameters

Calculation Results

⚠️ For thermodynamics and thermal engineering education reference only. Outlet temperatures must not violate thermodynamic laws (e.g., hot outlet cannot be lower than cold inlet in counter-flow).

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