MEP - Evaporateur à plaques à effets multiples
The Alfa Laval Multi-Effect Plate (MEP) evaporator is used, among other places, on cruise vessels and at diesel power plants to produce the highest quality fresh water at the lowest possible overall production costs.
Application
Supplying high quality fresh water to meet the demands on board the fleets of the world and at diesel power plants is a challenge that must be addressed in order to support sustainable development. To meet the growing demand for potable and technical water, it is important to be able to provide economical and efficient desalination technologies.
MEP system from Alfa Laval
The Alfa Laval MEP system is an easy-to-use fresh water distiller that uses seawater to produce the highest quality distillate with conductivity of less than 20 μS/cm at the lowest possible overall production cost.
Economical and highly efficient, the MEP employs combined plate-type evaporator/condenser effects to produce fresh water using the available waste heat from hot water or low-pressure steam, or a combination of both. The self-contained automated MEP evaporator is designed with very high thermal efficiency for high production rates using very little waste heat. Furthermore, the electric energy consumption is kept to a minimum through the use of an optimized pump configuration and the application of frequency controlled motor on the sea water pump.
With its modular design, this highly reliable MEP evaporator is easy to configure to the requirements of any vessel, diesel power plant. Straightforward operation and automated control provides maximum uptime at less cost compared to technologies such as reverse osmosis (RO) and multi-stage flash (MSF). Its lightweight, space-saving design takes up less floor space while offering much higher thermal efficiency in relation to its volume and weight compared to other evaporators.
This enables the production of much higher volumes of fresh water than other desalination technologies. The MEP system offers the lowest possible consumption of both electric energy and chemicals. The electric energy consumption of the four-effect MEP-4-750 desalination unit, for example, is less than 2.5 kWh/m³. Moreover, the MEP does not require brine circulation or any anti-foam injection, and its total anti-scale chemical consumption is less than traditional multi-stage flash units.