Definition - What does Heat Exchanger mean?
Heat exchanger refers to an industrial piece of equipment used to transfer heat from one fluid to another. They are devices that are designed to transfer heat through a common boundary layer (e.g., a tube) from one fluid (liquid or gas) and pass to a second fluid without any mixing or direct contact.
Heat exchangers may be prone to corrosion if not closely monitored and maintained due to their frequent contact with fluids.
Corrosionpedia explains Heat Exchanger
There are several types of heat exchangers such as shell and tube, plate and frame, adiabatic wheel and pillow frame.