Four arrangements to discuss
A single-effect system uses its heating source for one evaporation stage. Multiple effects reuse vapor in subsequent stages. Thermal vapor recompression (TVR) uses motive steam; mechanical vapor recompression (MVR) uses a driven compressor to raise vapor pressure and temperature for reuse. GEA evaporation technology
MVR is a utility decision
GEA explains that MVR recycles vapor energy using electrical input, with additional steam or vapor condensation potentially needed for heat balance and start-up. GEA meVap Ask for the stated operating case behind each energy number and whether auxiliary loads are included. Avoid comparing a compressor-only figure with total installed utility demand.
Ask for a common comparison
Request the same inlet and outlet conditions, operating hours, part-load profile and utility prices for every alternative. Require heat and mass balances, start-up demand, cooling duty and connected electrical load. Separate expected consumption from guaranteed consumption and note the guarantee test conditions.
Check the site constraints
The procurement checklist should include available electrical capacity, steam conditions, cooling-water conditions, installation space, maintenance access and an agreed response to utility loss. Compare investment and annual operating costs using your own tariff scenarios. This guide offers no universal energy savings percentage or payback promise.
Technical references
Define the duty before the equipment.
Prepare feed, product and utility information in one local project brief.