Shell and Tube heat exchangers are a specific kind of heat exchanger that include bundles of precisely spaced tubing compressed within a sizable cylindrical casing, or shell. Heat exchange is the process of transferring heat from one similar material or medium to another. Shell and tube heat exchangers are the most common type of heat exchanger design. They are categorized based on things like their performance qualities, tube type, material of construction, and other traits. The shell and tube heat exchanger uses intermediate thermal contact between two fluids. This form of heat exchanger is made up of a tube bundle and an outer shell. The fluid in the tube bundle and shell are at two different temperatures. The driving factor behind the exchange of heat is this temperature difference. The tube bundle may include a variety of tubes, including plain tubes, spiral tubes, and tubes with fins. These tubes can be arranged in a variety of ways, including a U-shaped configuration, a fixed tube configuration, and a floating head arrangement.