Salinity gradient energy: technology brief

By: Kempener, RuudContributor(s): Neumann, FrankLanguage: English Publisher: Bonn: IRENA, 2014Description: 26 p. ilustracionesSubject(s): Salinidad | Aguas Marinas | Producción de Energía | TecnologíaDDC classification: 621.321 134 Online resources: Click here to access online | Click here to access online
Contents:
Salinity gradient power is the energy created from the difference in salt concentration between two fluids, commonly fresh and salt water. There are two technologies for which demonstration projects are running and both use membranes. Pressure Retarded Osmosis (PRO) uses a membrane to separate a concentrated salt solution (like sea water) from freshwater. The freshwater flows through a semipermeable membrane towards the sea water, which increases the pressure within the seawater chamber. A turbine is spun as the pressure is compensated and electricity is generated. Reversed Electro Dialysis (RED) uses the transport of (salt) ions through membranes. RED consists of a stack of alternating cathode and anode exchanging permselective membranes.
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Documentos (Digitales) Documentos (Digitales) Centro de Documentación - Olade
Documentos Externos 621.321 134/K326s (Browse shelf) Available Documento a Texto Completo
Documentos (Digitales) Documentos (Digitales) Centro de Documentación - Olade
Documentos Externos 621.321 134/K326s (Browse shelf) Available Documento a Texto Completo 007726

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Salinity gradient power is the energy created from the difference in salt concentration between two fluids, commonly fresh and salt water. There are two technologies for which demonstration projects are running and both use membranes. Pressure Retarded Osmosis (PRO) uses a membrane to separate a concentrated salt solution (like sea water) from freshwater. The freshwater flows through a semipermeable membrane towards the sea water, which increases the pressure within the seawater chamber. A turbine is spun as the pressure is compensated and electricity is generated. Reversed Electro Dialysis (RED) uses the transport of (salt) ions through membranes. RED consists of a stack of alternating cathode and anode exchanging permselective membranes.

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