A fin tube bundle is a group of tubes with extended surfaces (known as fins) attached to them to improve the heat transfer rate between the tube and the surrounding fluid. These bundles are essential in systems where efficient heat exchange is required, such as in HVAC units, power plants, petrochemical plants, and industrial cooling towers. Fins act like amplifiers for heat transfer:... https://www.heatexchanger.co.in/Heat-Exchanger/Fin-Tube-Bundle/