HELICAL COIL-ON-TUBE HEAT EXCHANGER

A coil on tube heat exchanger is provided that uses multiple parallel helical channels to limit liquid pressure losses while providing similar performance and production times to previous coil and tube designs. Two or more channels are wrapped together around a tube in a helical fashion, permitting the heat exchanger to be used in a counter-flow, or contra-flow, implementation. The system preferably includes a header, or manifold, to connect two or more of the channels together at the beginning and/or end of the tube. However, each individual channel may be connected to a separate load and kept independent. The plurality of channels can be implemented within a single tube or via multiple tubes, or a combination thereof. Embodiments of the present invention provide reduced pressure loss, higher performance and are generally faster to manufacture than prior heat exchangers.