Heat Exchanger Sizing Calculator
Heat exchanger sizing is important because it ensures the system can transfer the required amount of heat efficiently without being too large (which increases cost and space) or too small (which reduces performance and can cause system issues). Proper sizing improves energy efficiency, reliability, and overall system performance in applications like HVAC and industrial processes. The LMTD (Log Mean Temperature Difference) method is used to design and size heat exchangers by calculating the average temperature difference between the hot and cold fluids along the length of the exchanger. It accounts for the fact that this temperature difference changes from one end to the other. The method is based on the equation Q = U A LMTD, where Q is the heat transfer rate, U is the overall heat transfer coefficient, A is the heat transfer area, and LMTD is the log mean temperature difference.
Enter either the heat duty or the heat transfer area. Leave the other field blank and click Calculate.