Overview:

• MVRE is the most efficient evaporation technique driven by electrical energy thus reduces operating cost of steam and cooling water required in the process.
• Various evaporation techniques are used to concentrate fluids or to achieve ZLD in wide-ranging industries including dairy, food, pharmaceutical, and chemical, textile, paper etc. Evaporating water from solution is an energy-intensive process. It is often one of the main contributors to a plant’s operating costs.
• MVRE has become the preferred system in many industries, because of its economy and simplicity of operation. In most instances, the need for steam to provide heat for the evaporation and cooling water for condensing the overhead vapours is virtually eliminated; by installing MVRE. A wide range of turndown is possible in MVRE.
• MVRE is a system in which the Centrifugal Turbo Fan / Roots Blower is used to recompress the vapours generated by Evaporator at higher pressure using electrical power. In MVRE, these same vapours are used again in evaporator as a heating medium. This eliminates the use of fresh steam.
• The system operates at a partial vacuum, reducing the boiling temperature and most of the process heat is recovered and recycled within the preheater and evaporator unit. Overall specific energy requirements are dramatically reduced in comparison to conventional evaporation systems.
• MVRE becomes a cheaper option as compared to conventional multiple effect evaporators.

Advantages:

• Found to be the most economical choice when there is no boiler available or when electrical power is priced competitively in comparison to steam.
• Gentle evaporation of the product due to low temperature differences.
• Reduced load on cooling towers since no residual vapours, due to the complete recompression of the process vapour, cooling water consumption is negligible.
• Easy capacity controlling through variable frequency drive (VFD).
• Compact, portable, and easy to install.
• High heat efficiency, energy-saving, zero contaminant.
• Efficient vapour compression technology to minimize operating Cost.
• Due to comparatively less use of electricity, water and negligible consumption of cooling water, maintenance costs are saved (low maintenance).
• Compact, portable, and easy to install.
• Recycling the latent heat of the steam and avoiding fresh steam consumption, makes MVRE more energy saving.
• High water recovery rate: up to 98%.