Ocean thermal energy conversion : technology brief

By: Kempener, RuudContributor(s): Neumann, FrankLanguage: English Publisher: Bonn: IRENA, 2014Description: 22 p. ilustracionesSubject(s): Temperatura Del Océano | Aguas Marinas | Conversión Directa de Energía | Producción de Energía | OTEC | TecnologíaDDC classification: 621.321 134 Online resources: Click here to access online | Click here to access online
Contents:
Ocean Thermal Energy Conversion (OTEC) technologies use the temperature difference between warm seawater at the surface of the ocean, and cold seawater at between 800-1 000 metres (m) depth to produce electricity. The warm seawater is used to produce a vapour that acts as a working fluid to drive turbines. The cold water is used to condense the vapour and ensure the vapour pressure difference drives the turbine. OTEC technologies are differentiated by the working fluids that can be used. Open Cycle OTEC uses seawater as the working fluid, Closed Cycle OTEC uses mostly ammonia. A variation of a Closed Cycle OTEC, called the Kalina Cycle, uses a mixture of water and ammonia. The use of ammonia as a working fluid reduces the size of the turbines and heat exchangers required.
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Documentos (Digitales) Documentos (Digitales) Centro de Documentación - Olade
Documentos Externos 621.321 134/K326 (Browse shelf) Available Documento a Texto Completo
Documentos (Digitales) Documentos (Digitales) Centro de Documentación - Olade
Documentos Externos 621.321 134/K326 (Browse shelf) Available Documento a Texto Completo 007725

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Ocean Thermal Energy Conversion (OTEC) technologies use the temperature difference between warm seawater at the surface of the ocean, and cold seawater at between 800-1 000 metres (m) depth to produce electricity. The warm seawater is used to produce a vapour that acts as a working fluid to drive turbines. The cold water is used to condense the vapour and ensure the vapour pressure difference drives the turbine. OTEC technologies are differentiated by the working fluids that can be used. Open Cycle OTEC uses seawater as the working fluid, Closed Cycle OTEC uses mostly ammonia. A variation of a Closed Cycle OTEC, called the Kalina Cycle, uses a mixture of water and ammonia. The use of ammonia as a working fluid reduces the size of the turbines and heat exchangers required.

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