EGV Systems

The Lowest Energy Concept and System For Large Scale : 

EGV Working Theory

The new invention Enhanced Gravity Based Vacuum System (EGV) is based on enhancing the old gravity-based vacuum generation method (natural vacuum of Trochili’s barometer) to generate a continuous very low-pressure environment (near vacuum) by a weight of liquid column or by a hydro-suction pump – with much less energy consumption than the common air-based vacuum pump – in order to reduce the boiling point and the temperature of any trapped liquid inside an isolated chamber. And immediately condensates the generated vapor by condensation surfaces and by a suitable turbine generator to avoid building up pressure inside the vacuum chamber. 

EGV Main Component

EGV has the same working principle and the same main components for all applications with minor differentiations according to the required applications types, the main components are:

  • Vacuum generation assembly consists of: Vacuum generation chamber, Inlet feed valve to fill the vacuum chamber with fresh water, Air ventilation valve to remove air out while filling the vacuum chamber with fresh water, Outlet water column pipe with +10.3m length.
  • Evaporization chamber contains series of shallow Evaporization basins structures with inclined condensation surfaces at the bottom.
  • Vacuum turbine chamber contains flow turbine to reduce the kinetic energy and the temperature of the generated vapor to accelerate condensation process and to generate clean energy electricity in the same time.
  • Novel nonelectric degaser unit for EGV water desalination systemsto avoid dissolved gases accumilatin within the system and losing the created vacuum environment.

Water Desalonation Systems with intelligent brine management system

1.1- Geothermal Vacuum Desalination (EGV-CD-Geo System)

EGV-CD-Geo green system uses the widely available low-grade geothermal energy resources (between 50°C to 70°C geothermal temperature) through a closed loop geothermal well to heat up seawater / shallower brackish water continuously for 24/7 operations during the day with very small surface footprint instead of solar and other heating resources.

As the majority of geothermal brines are containing high percentage of trapped/dissolved GHG emissions and toxic gases (H2S & Radon) and they are more corrosive than sea water due to their high salinity, A closed loop geothermal heating well is used to heat up seawater / brackish water within cased lateral hole in order to save environment and avoid intensive corrosion

The cased hole’s deviated lateral can be placed with minor requirement of geological data at any underground rocks with +50° C geothermal temperature, regardless to rock type, permeability or porosity.
The cased hole’s lateral will be cemented by high heat conductive cement in order to work as a heat exchanger between hot rocks and sea water.

1.2- Concentrated Solar Vacuum Desalination (EGV-CD-Solar System)
EGV-CD system is suitable for hot sunny weather areas, system is using a parabolic reflector mirror to heat up sea water up to 50-60 C before entering the system and discharging the concentrated brine into a concentrated solar plant to heat it up to evaporate the rest of fresh water and continue heating up till melt the associated salts , while melting associated salts ( the valuable salts will be recovered and the rest of salts will be stored in isolated container to heat up sea water during night to continue desalination for 24/7 operation.