Compared with a single effect evaporator, thermo-compressor reduces the plant's vapour consumption from 2 to 4.
Although the reduction of operating costs is not as great as with Mechanical Vapour Compression, thermo-compression offers many advantages:
- Low investment
- Simple operation
- Reduced maintenance costs: The system has no rotating parts and is therefore less sensitive to mechanical deterioration.
- A huge installation simplicity : thermo-compressor occupies little surface space and is very easy to install
The thermo-compressor is mainly interesting on small capacity units, where it can reduce operating costs without requiring significant investment.
Thermo-compressor efficiency is directly related to the vapour pressure used. Obtaining satisfactory yields requires the use of high pressure vapour: 4 to 20 bars.