With the great use in different chemical industries, heat exchangers are one of the utmost crucial heat transfer devices that are used to transfer or exchange the heat energy for different purposes. These are extremely significant and essential in the industrial recovery of heat among two process fluids. Although there are many other types of heat exchangers used in industries, shell and tube heat exchangers are the most significant and widely used. Hence, this review paper presents a compendium of various types and outlines about tube heat and shell exchanger, unlike ASME and TEMA standards, elementary design methods for two fluid heat exchanger, different alterations done in shell and tube heat exchanger for extra good performance in future use. In light of this, this paper provides a short-term background and research on various heat exchangers, focusing primarily on shell and tube heat exchangers.

Keywords: Heat Exchangers, ASME and TEMA Standards, Modern Heat Exchanger, LMTD.