Shell Assembly

Shell & Tube Heat Exchangers

The shell assembly in a shell and tube heat exchanger is the outermost component that encloses the tube bundle. It's a cylindrical structure designed to withstand high pressures and temperatures, and it plays a crucial role in directing the flow of the shell-side fluid around the tubes where heat exchange occurs. The shell assembly often includes baffles, which are plate-like devices installed perpendicular to the tubes. These baffles not only support the tubes and prevent them from vibrating but also force the shell-side fluid to flow across the tubes multiple times, enhancing heat transfer. The shell assembly also includes nozzles or ports for the inlet and outlet of the shell-side fluid. The shell can be made from a variety of materials, including carbon steel, stainless steel, or other alloys, depending on the application's requirements. It's worth noting that the design and construction of the shell assembly must adhere to specific standards and codes to ensure safety and performance.