In thermal engineering, the logarithmic mean temperature difference (LMTD) is used to determine the temperature driving force for heat transfer in flow systems, most notably in heat exchangers.

Arithmetic Mean Temperature Difference in Heat Exchangers - AMTD - and Logarithmic Mean Temperature Difference - LMTD - formulas with examples - Online Mean Temperature Calculator.

Definition of LMTD: The term LMTD stands for " logarithmic mean temperature difference ", which is the logarithmic mean of the difference between the inlet and outlets temperatures for hot …

Oct 6, 2025 · It measures the effective temperature difference between two fluids as they transfer heat. Engineers use this value to design and analyze heating or cooling equipment. The LMTD …

Jul 16, 2025 · Understanding LMTD is fundamental to grasping how heat exchangers function and optimizing their performance. The Log Mean Temperature Difference (LMTD) is a logarithmic …

Log mean temperature difference (LMTD) is defined as a logarithmic average of the temperature difference between the hot and cold flows at each end of a heat exchanger, used to evaluate …

The temperature change that takes place across the heat exchanger from the entrance to the exit is not linear. A precise temperature change between two fluids across the heat exchanger is …

May 22, 2019 · The “ Logarithmic Mean Temperature Difference “ (LMTD) is a logarithmic average of the temperature difference between the hot and cold feeds at each end of the heat …

The Log Mean Temperature Difference (LMTD) method is a key tool for analyzing their performance. It provides a more accurate average temperature difference than simpler methods.

May 3, 2019 · In comparison to the arithmetic mean, the LMTD is much more accurate because temperatures are usually varying along each point in a given system. These variations are …