Economizer in solar tower plant and operating method of said plant
AssigneeAbengoa Solar New Technologies, S.A.
InventorsRaul Navio Navio Gilaberte, Jose Maria Mendez Marcos, Javier Dominguez Rodriguez, Lucia Serrano Gallar
Life of this patent
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Abstract
An economizer in a solar tower plant and operating method of said plant the purpose whereof is to make use of the heat from the heat losses generated around the solar tower receivers (3) to preheat the fluid with which the saturated steam or superheated steam solar receivers are fed. When the heat from the losses absorbed by the economizer (2) is not sufficient to achieve the necessary minimum temperature, a secondary economizer (4) is used which takes live steam (prior to it entering the turbine) and increases the temperature of the feed water of the receiver (3).
Claims15
An economizer in a solar tower plant of the type consisting of a solar field of heliostats which reflect solar radiation and direct it towards one or more receivers located at the top of the tower, producing in those receivers the heating of a fluid, wherein said economizer comprises a series of tubes arranged as a plane or bundle on the receiver and in the interior whereof circulates the water with which the receiver is fed, absorbing the calorific energy given off by the heat losses from the receiver.
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Dependencies are inferred from the claim text.