Vapor-compression evaporation  Vapor-compression evaporation
Vapor-compression evaporation is the evaporation method by which
a blower, compressor or jet ejector is used to compress, and
thus, increase the pressure of the vapor produced. Since the
pressure increase of the vapour also generates an increase in
the condensation temperature, the same vapour can serve as the
heating medium for its "mother" liquid or solution being
concentrated, from which the vapor was generated to begin with.
If no compression was provided, the vapor would be at the same
temperature as the boiling liquid/solution, and no heat transfer
could take place.  If compression is performed by a
mechanically-driven compressor or blower, this evaporation
process is usually referred to ad MVR (Mechanical Vapour
Recompression. In case of compression performed by high pressure
motive steam ejectors, the process is usually called
Thermocompression or Steam Compression.  MVR Process  In this
case the energy input to the system lies in the pumpi