White paper: Coil Evolution: Smaller Diameter Coil Production
This white paper explains how HVAC coil production has evolved and how the current technology can benefit engineers.
It makes sense, in terms of efficiency, to reduce both the tube diameter and the distance between tubes, so that the same volume of coil can transfer more heat. Tighter patterns, enhanced fin surfaces, and stronger fin stock materials increase the amount of work required per unit area of die surface, which means that any given size press has a higher tonnage requirement than would have been the case five, ten, or twenty years ago.
Download the white paper here.