Falling Film Evaporator | N.B.Oler
Apr 16, 2022 · Principle of the falling film evaporator. In a falling film evaporator, feed enters from the top and flows down the walls of the tubes. The liquid gets heated rapidly due to heat transfer from steam. The liquid boils and becomes vapour, which forms small bubbles. They tend to fuse to form layers of bubbles, which travel down the tubes.