Multiple effect evaporators are used to optimize the energy consumption.
When a single evaporator is used, it is called single effect evaporation and when more than one evaporator is used it is called multiple effect evaporators.
A combination of falling film and forced circulation evaporators can be used for multiple effect system. Multiple effect evaporators are used in food, milk, fruit juices, pharmaceuticals, chemicals, fertilizers etc. Confident Engineering deals with highly energy efficient multiple effect evaporator systems. It can handle very high evaporation rates and good steam economy.