Fin Fan Coolers operate by transferring heat from hot process fluids to ambient air. The system consists of a bundle of finned tubes through which the hot fluid flows. Large axial fans force or draw air across the tube bundle, and the attached fins increase the surface area for heat exchange, enhancing the cooling process. https://www.finfancooler.com/Heat-Exchanger/Shell-and-Tube-Heat-Exchanger/