Exchangers are devices that enable the transfer of heat, gases or liquids between two separate substances. Alternatively, they can be referred to as transfer units, conveyors or converters. The term heat exchanger specifically refers to an apparatus that transfers heat between two fluids or substances. Other synonyms for exchangers include coolers, radiators, interchangers, and heat sinks. These devices are commonly used in manufacturing, processing, and cooling systems. The purpose of exchangers is to facilitate the transfer of energy or substances from one source to another, allowing for efficient and effective exchange of materials and heat. Regardless of their name, exchangers play a vital role in a wide range of industrial and technological applications.