Counter Flow Heat Exchanger Diagram

In a parallel flow exchanger both fluids in the heat exchanger flow in the same direction.

Counter flow heat exchanger diagram.

A counter flow heat exchanger is one in which the direction of the flow of one of the working fluids is opposite to the direction to the flow of the other fluid. The main difference is that the tubeside fluid enters the exchanger at the opposite end of the shellside fluid. The counter current design is the most efficient in that it can transfer. It is often used in cellulose industries where the heat exchanger is subjected to severe fouling and corrosion.

There are three primary classifications of heat exchangers according to their flow arrangement. For example in a distillation column the vapors. A counter flow or countercurrent shell and tube heat exchanger s construction is in many ways identical to that of a parallel flow shell and tube heat exchanger. In counter flow heat exchangers the fluids enter the exchanger from opposite ends.

Double pipe heat exchanger design requires use of the heat transfer rate the log mean temperature difference and an estimate of the overall heat transfer coefficient to calculate the estimated heat transfer surface area. Generally in this type of heat exchanger the counter flow arrangement is used. In parallel flow heat exchangers the two fluids enter the exchanger at the same end and travel in parallel to one another to the other side. Counter flow shell and tube heat exchangers.

The flowing bodies can be liquids gases or even solid powders or any combination of those. A counterflow heat exchanger will require less heat exchange surface area than a parallel flow heat exchanger for the same heat transfer rate and the same inlet and outlet temperatures for the fluids. A heat exchanger can have several different flow patterns. Crossflow parallel flow and counterflow heat exchanger configurations are three examples.

Consider a parallel flow or counterflow heat exchanger consisting of fluid 1 fluid 2 and the wall separating these two fluids. We combine these two types together with an index n to indicate the flow direction of fluid 2. A double pipe heat exchanger consists of one pipe inside another. It can be operated as a parallel flow or as a counterflow heat exchanger.

Shell and coil heat exchanger diagram spiral plate heat exchanger. The most common arrangements for flow paths within a heat exchanger are counter flow and parallel flow.