Shell & Tube Heat Exchanger
A Shell and Tube Heat Exchanger is a class of heat exchanger designs.It is the most commontype of heat exchanger in oil refineries and other large chemical processes , and is suited for higher- pressure applications . As its name implies , this type of heat exchanger consists of a shell ( a large pressure vessel ) with a bundle of tubes inside it . One fluid runs through the tubes , and another fluid flows over the tubes ( through the shell ) to transfer heat between the two fluids . The set of tubes is called a tube bundle , and may be composed of several types of tubes : plain , longitudinally finned , etc.