ABSTRACT
An air-to-water heat exchanger is an arrangement of surfaces separating an air stream and a water stream in such a way that it maximizes heat transfer between the two streams. The most common air-to-water heat exchanger is the fin-tube heat exchanger, which is placed directly in the air ductwork and on the water side is connected to the pipes of the hydraulic system, see Figure V.2.1. Fins on the outside of the tubes in which the water runs increase the heat transfer from the air, thereby improving the performance.
