| The hairpin heat exchanger design is similar to that of double pipe heat exchangers with multiple tubes inside one shell. The design provides the flexibility of a U-tube design with an extended shell length that improves the exchanger’s ability to achieve close temperature approaches. Advantages Good counter current or co-current flow – good temperature approach. Can be designed with removable shell to allow cleaning & inspection. Use of finned tubes results in compact design for shell side fluids with low heat transfer coefficients. Easily designed for high pressure service. Able to handle large temperature difference between the shell and tube sides without using expansion joints. All connections are at one end of the exchanger Typical Applications Single phase heating and cooling when the required heat transfer area is relatively small. Often found in high pressure services and where there is a large temperature difference between the shell and tube side fluids. |
