Non-circular tube profiles and coils for heat transfer applications

These unique non-circular tubular geometries expand the range of design options available for heat-transfer applications. Positioned as enabling solutions rather than fixed designs, the profiles allow engineers to explore alternative balances between thermal behaviour, component size, and system layout.

Flat-sided oval coils
Timeless Tube's engineers have developed a technique of successfully forming and fabricating flat-sided oval tubes into coils, which are configurable with coil turns in either plane. These coils offer a compact arrangement with increased surface density and improved positional stability relative to circular coils. This supports tighter coil packing and reduced overall space requirements, creating opportunities for more compact heat-exchange components in space-restricted environments.

Non-circular twisted tubes
New twisted hexagon and twisted cruciform tubes join Timeless Tube's twisted oval tubes as a family of innovative profiles that open up new possibilities for thermal system design. These rotating profiles alter internal and external surface interaction along the tube length. Rather than relying on added fins, inserts, or secondary heat-transfer features, they offer opportunities to:

- Improve utilisation of available tube surface area
- Encourage enhanced interaction between fluid and tube wall
- Enable more compact heat-transfer components through tighter packing and reduced overall space requirements.

The tube geometries are intended for use in a wide range of heat-transfer and thermally driven applications, including heat exchangers, condensers, compact cooling assemblies, and space-restricted mechanical systems. They are currently available in stainless steel, brass, copper, titanium, aluminium and other non-ferrous metals.