Mass Transport Heat Exchanger Method and Apparatus for Use in Ocean Thermal Energy Exchange Power Plants.
DEPARTMENT OF THE NAVY WASHINGTON D C
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Ocean thermal energy conversion OTEC uses a fluid, such as ammonia, heated by high-temperature surface water to provide a turbine-driving working gas. To condense the gas for re-use, a slurry of phase-transformation particles and cold ambient sea water is mixed in a deeply-submerged tank and delivered to a surface tank essentially at the cold sub-surface temperature. Condensing of the working gas is performed at the ocean surface level by exposure to the cold slurry temperature. Particle phase-transformation, which occurs at a temperature between that of the cold sub-surface water and the reject temperature of the heat-exchanger, maintans a surface tank temperature at about the sub-surface water. Author
- Non-electrical Energy Conversion
- Electric Power Production and Distribution