A system called a Heat Exchanger is created to make it easier to transfer heat between two or more fluids. Both cooling and heating activities can be carried out with these systems. To efficiently handle the transfer of energy from one medium to another, they find applications in a variety of industries, including oil and gas, power generation, automotive, and chemical. A heat exchanger is a vital component in many industrial processes and systems, playing a crucial role in heat transfer between fluids or gases. It is designed to efficiently transfer thermal energy from one fluid to another, without the fluids mixing or coming into direct contact.

Heat Exchanger are used in a wide range of applications, including HVAC systems, power plants, refrigeration systems, and chemical processes. The primary function of a heat exchanger is to facilitate the exchange of heat between two fluids, often referred to as the "hot" and "cold" fluids. The hot fluid transfers its heat to the cold fluid, raising its temperature while simultaneously cooling the hot fluid. This heat transfer process can occur through various mechanisms, such as conduction, convection, and radiation, depending on the design and type of heat exchanger.