Mechanical Vapour Recompression: What is it and How it Works?

Mechanical Vapour Recompression (MVR) or Mechanical Vapour Compression (MVC) is an energy-efficient technology that recycles and reuses energy. MVR is an economical method used in various industries like food processing, desalination, and chemical production. 

However, if you are wondering how MVR works, read below to know the answer.

Understanding Mechanical Vapour Recompression

Before going through the process, we must understand the core principle of MVR. The mechanical Vapour Recompression system consists of a compressor that expands the pressure of the low-pressure vapor, raising the temperature. 

Then the low-pressure heated vapour is sent back to the process, providing necessary energy for evaporation. 

The Process of Mechanical Vapour Recompression

Vapour Generation

The first step is to generate low-pressure vapour.  This vapour is generated during the evaporation, distillation, or drying processes. 

Vapour Compression

The vapour produced during the evaporation, distillation, and drying process is sent back into the compressor, where its pressure increases, raising the vapor’s temperature. 

Heat Transfer

After the vapour is produced, it is then transferred to a heat-exchanger. In this process, the heat from the vapour is transferred to the liquid, which is then concentrated or evaporated.

Evaporation or Concentration

The heat from the vapour causes the liquid to evaporate or concentrate. After that, the remaining vapor is returned to the compressor, completing the cycle.

Condensation

After the process, the compressed vapour turns back into the liquid state, and the cycle is repeated. 

Advantages of Mechanical Vapour Recompression

Apart from being cost-effective, MVR offers numerous advantages like:

Impact on Environment

The MVR is energy efficient, meaning it consumes less, thus lowering greenhouse gas emissions and making it a clean and green option.

Better Quality Product

MVR offers better quality products because of its precise temperature control.

Energy Efficient

As the MVR recycles water vapour for heating purposes, it consumes significantly less energy.

Compact Design

MVR systems are compact and require less space than other evaporation methods. In this way, MVR works, however, if you want to buy one for your industry, contact Thermosag today.