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.
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.
In a parallel flowexchanger both fluids in the heat exchanger flow in the same direction.
Enter the fluid data and enter 5 of the 6 available inputs under flow rates and temperatures.
Plane wall heat transfer coefficient u 1 1 ho l k 1 h1.
The currently calculating value will always be highlighted in green.
Heat transfer q u a tm.
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.
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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.
In heat exchanger analysis if the fluid inlet and outlet temperatures are specified or can be determined by simple energy balance the lmtd method can.
Q m h c ph t hin t hout m c c pc t cout t cin where.
A box will be highlighted yellowif it needs input.
Following is the equation to be used.
Figure 9 represents the directions of fluid flow in the parallel and counter flow exchangers.
Heat transfer calculator to approximate the results of a heat transfer system.
Counter parallel flow heat exchanger tube length calculation.