Shell and Tube Heat Exchangers are one of the most popular types of exchanger due to the flexibility the designer has to allow for a wide range of pressures and temperatures. There are two main categories of Shell and Tube exchanger:
1. These are used in the petrochemical industry which tend to be covered by standards from TEMA (Tubular Exchanger Manufacturers Association).
2. These are used in the power industry as feedwater heaters and power plant condensers. regardless of the type of industry. The exchanger used there are a number of common features. A shell and tube exchanger consists of a number of tubes mounted inside a cylindrical shell.