DEVICE, SYSTEM AND METHOD FOR HIGH LEVEL OF ENERGETIC EFFICIENCY FOR THE STORAGE AND USE OF THERMAL ENERGY OF SOLAR ORIGIN
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United States of America Patent
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Nov 23, 2012
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Apr 3, 2012
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Abstract
A device (1; 10; 11; 12) for storage and transfer of thermal energy associated with an incident solar radiation, which used in a solar plant for the production of energy, based on an optical plant configuration which makes solar radiation converge from above, and comprises: —a containment casing (2); and—a dual bed (31, 32) of fluidizable particles received inside the casing (2) and arranged the one circumscribed to the other one, wherein the casing (2) has at least one receiving cylindrical cavity (20) which extends through the bed (3) of particles and has a open top inlet (21) for receiving the solar radiation concentrated by a field of heliostats and an open or closed bottom (22) at the level of the base of the bed of particles, the overall arrangement being such that one of the beds of particles (31) is arranged in contact with the side skirt (23) of the cylindrical cavity (20) for storing thermal energy received from the solar radiation and the other one bed of particles (32) is arranged in contact with pipe bundles (41) crossed by the working fluid.
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