Heat Exchanger: Shell

The shell on a shell and tube heat exchanger serves as the external casing that houses the entire tube bundle and shell side fluid.

• Baffle Spacing: The number and spacing within the shell has a significant impact on heat transfer efficiency and pressure drop. Common baffle designs include single-segmental, double-segmental, and disc-and-doughnut baffles, each providing different flow characteristics and thermal performance enhancements.
• Baffles: Installed within the shell direct the fluid flow across the tubes multiple times, support the tubes, increasing turbulence and enhancing heat transfer efficiency.

• Orientation: Either horizontal or vertical, can affect the overall performance and maintenance of the heat exchanger. Horizontal shells are generally easier to clean and maintain, while vertical shells might be more efficient for certain applications, like condensing processes.
• Fouling: Shell side fouling can impact heat transfer efficiency, so regular maintenance and cleaning are crucial.

• Connections: Nozzles and flanges on the shell provide inlet and outlet connections for integrating the heat exchanger into the process piping.
• Removable Bundle: In certain designs, a removable shell cover can facilitate easier maintenance and inspection of the tube bundle.