|
Rising Film Evaporators
The Rising Film Evaporator is designed by using a
vertical tube with steam condensing on its outside
surface. Liquid on the inside of the tube is brought
to a boil, the vapour generated forming a core in
the centre of the tube. As the fluid moves up the
tube, more vapour is formed resulting in a higher
central core velocity that forces the remaining
liquid to the tube wall. Higher vapour velocities in
turn result in thinner and more rapidly moving
liquid film. This provides higher HTC’s and shorter
product residence time.
|
|
|
|
