Key Principles of Shell and Tube Heat Exchanger Design
What Is a Shell and Tube Heat Exchanger? A shell and tube heat exchanger is one of the most widely used types of heat exchangers in industrial processing. Its purpose is to efficiently transfer heat between two fluids—one flowing through tubes and the other around them within a shell. Known for their durability and adaptability, these exchangers are foundational in sectors like oil and gas, chemical processing, HVAC, power generation, and more. Understanding the Core Design Components 1. Shell The shell is the large outer casing that encloses the bundle of tubes. Typically cylindrical in shape, the shell provides the space through which one of the fluids flows. Materials used for the shell often depend on the fluid's characteristics—corrosion, pressure, and temperature resistance are key considerations. 2. Tube Bundle Inside the shell, you'll find a collection of tubes, commonly arranged in a triangular or square pitch. These tubes carry the second fluid. Tube material selecti...