PRIMRE/Databases/Projects Database/Technologies/Closed-Cycle
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Closed-Cycle
Closed cycle OTEC systems use a working fluid with a low boiling point, most commonly ammonia. Although other working fluids are also used, many are toxic (e.g., hydrocarbons) or of environmental concern (e.g., chlorofluorohydrocarbons). The working fluid is heated to a gas by passing warm surface seawater through a heat exchanger, and is used to power an air turbine to produce electricity. Cold deep seawater is pumped through a second heat exchanger to condense the working fluid back to a liquid. The working fluid exists in a closed system and is reused throughout the life of the plant (references).
4 Devices using this technology
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Last modified: 2024-10-10
