Vapor-compression Evaporation - MVR Process

MVR Process

In this case the energy input to the system lies in the pumping energy of the compressor. The theoretical energy consumption will be equal to, where

  • E is the total theoretical pumping energy
  • Q is the mass of vapors passing through the compressor
  • H1, H2 are the total heat content of unit mass of vapors, respectively upstream and downstream the compressor.

In SI units, these are respectively measured in kJ, kg and kJ/kg. This theoretical value shall be increased by the efficiency, usually in the order of 30 to 60%. In a large unit, the compression energy is between 35 and 45 kW per metric ton of compressed vapors.

Read more about this topic:  Vapor-compression Evaporation

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