Log Mean Temperature Difference (LMTD)

Log Mean Temperature Difference (LMTD) is a method used in heat exchangers to calculate the temperature driving force for heat transfer between two fluids. It accounts for the varying temperatures along the length of the heat exchanger. Instead of just taking the average of the inlet and outlet temperatures, LMTD uses a logarithmic formula to provide a more accurate measure. This helps engineers design systems more effectively, improving energy efficiency and performance in applications like heating, cooling, and power generation. Essentially, it reflects how well heat is transferred based on temperature differences.