Rising film evaporator

Answer 1

Rising Film Evaporator

In a Rising Film Evaporator liquid feed enters from the bottom of steam heated tubes. The parallel movement of liquid and vapour along tube surface imparts effective water evaporation from the liquid feed. This type of evaporator is ideal for liquids which attain high viscosity or have fouling tendency.

Answer 2

A rising film evaporator is a type of evaporator where the liquid to be concentrated is pumped upwards through heated tubes. As the liquid rises, it forms a thin film along the walls of the tubes, allowing for efficient heat transfer and evaporation. This design is often used for heat-sensitive products due to the gentle treatment of the product.