header

dean effectThe most striking characteristic of the Sterideal is the continuous coil of the pipes. If a product enters a coiled path, centrifugal forces act upon it. Velocity differences in the tube cross-section cause the centrifugal forces to vary. This results in vortices in the cross section, the so called “Dean vortices”.

Dean vortices represent a secondary flow perpendicular plane relative to the forward flow in the tube. These vortices cause mixing in the cross-section and ensure markedly improved heat transfer, both during heating and cooling. In particular for viscous products, the increase in heat transfer at increasing Dean numbers, is spectacular.

Please click here to download a relevant article!