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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).