Evaporator Introduction
Evaporators convert materials from a liquid to a gaseous state.
They consist of a heat exchanger or bath, valves, manifolds and temperature controls. Many types
of evaporators are available.
Fin type evaporators have the same looking with condensers for the same type.Plate evaporators
are similar to plate heat exchangers, but are equipped with large passages for vapor flow.
Evaporators vary in terms evaporation rate, system capacity, and
feed tank capacity. Laboratory-scale devices are designed to
handle small batches of material. By contrast, production-scale
devices are recommended for commercial operations.
Often, pilot scale devices are suitable for intermediate-range operations. Power sources for
evaporators include electricity, fuel oil, hot oil, hot water, natural gas, liquid propane, and steam. 
Some devices are equipped with an integral display and
interface for programming and control.
Evaporators are used in a variety of applications and
industries. For example, some devices are
used in alcohol processing, chemical processing, or distillation and food processing facilities.
Others are rated for cryogenic use or designed for desalinization or seawater treatment.