Counter Flow Heat Exchanger Calculator

Lmtd calculation calculate log mean temperature difference lmtd for shell and tube exchanger for counter current and co current flow.

Counter flow heat exchanger calculator.

Heat transfer calculator to approximate the results of a heat transfer system. In the parallel flow arrangement of figure 18 8 a the hot and cold fluids enter at the same end flow in the same direction and leave at the same end. Https engineers academy product level 4 higher national certificate hnc in mechanical engineering in this video tutorial you will learn how to calculate. In a parallel flowexchanger both fluids in the heat exchanger flow in the same direction.

Input data in yellow update and reset funtions at bottom of page. The number of transfer units ntu method is used to calculate the rate of heat transfer in heat exchangers especially counter current exchangers when there is insufficient information to calculate the log mean temperature difference lmtd. A box will be highlighted yellowif it needs input. Counter parallel flow heat exchanger tube length calculation.

The simplest heat exchanger is one for which the hot and cold fluids move in the same or opposite directions in a concentric tube or double pipe construction. A counter flow heat exchanger is one in which the direction of the flow of oneof the working fluids is opposite to the direction to the flow of the other fluid. Following is the equation to be used. Enter the fluid data and enter 5 of the 6 available inputs under flow rates and temperatures.

Q m h c ph t hin t hout m c c pc t cout t cin where. Counter parallel flow heat exchanger tube length calculation. Heat exchanger calculations with the heat exchanger design equation require a value for the heat transfer rate q which can be calculated from the known flow rate of one of the fluids its heat capacity and the required temperature change. The currently calculating value will always be highlighted in green.

Plane wall heat transfer coefficient u 1 1 ho l k 1 h1. Heat transfer q u a tm.