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AssigneeAbengoa Solar New Technologies, S.A.
InventorsRaul Navío Gilaberte, Paula Llorente Folch, Maria del Carmen Romero Delgado
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Molten salt solar receiver and procedure to reduce the temperature gradient in said receiver. The receiver consists of at least one panel of semi cylindrical geometry, formed by a combination of vertical pipes. The receiver (10) is supplied with a heat transfer fluid made up of molten salts which originate from a recirculation system which is composed of a mixture deposit (6), a hot salt storage tank (9) and a cold salt storage tank (8); the mixture tank (6) which is supplied by a part of the hot heat transfer fluid (4) which exits the receiver (10) and the cold heat transfer fluid (5) which exits the cold salt storage tank (8); the hot salt storage tank is connected to the exit of the receiver (10) so that a part of the heat transfer fluid which does not recirculate is stored (3).
Tower type molten salt solar receiver, through which the heat transfer fluid circulates, characterised in that the receiver (10) is supplied with a heat transfer fluid made of molten salts which originate from a recirculation system which is composed of a mixture deposit (6), hot salt storage tank (9) and cold salt storage tank (8);
Procedure to reduce the temperature gradient in a molten salt solar receiver and, as described in the previous claims, characterised in that, to reduce the gradient, part of the molten salt flow which exits the receiver at high temperature is recirculated and is mixed with a flow of cold salts, so that the heat transfer fluid of salts which enter the receiver is at an intermediate temperature, which reduces the thermal gradient between the entrance and exit of said fluid.
Dependencies are inferred from the claim text.