A Shell and Tube Heat Exchanger is a mechanical device used to transfer heat between two fluids. It consists of two main parts: The shell, a large outer vessel The tube bundle, a group of metal tubes enclosed within the shell One fluid flows inside the tubes, while the other circulates over the tubes inside the shell. The two fluids do not mix but exchange thermal energy thro... https://www.finfancooler.com/Heat-Exchanger/Shell-and-Tube-Heat-Exchanger/