Solar energy system with direct absorption of solar radiation
First Claim
1. A solar energy system comprisinga solar absorber in the form of a solar boiler tank with a lower working liquid region having a liquid inlet and filled with a working liquid capable of absorbing highly concentrated solar radiation and boiling thereupon under a predetermined pressure, and an upper vapor accumulation region having a vapor outlet for withdrawing from the tank a vapor created in the tank, vapor utilization means associated with said vapor outlet, said solar boiler tank having at least one transparent window to receive and pass towards the working liquid highly concentrated solar radiation towards the working liquid, and a solar radiation concentration system in the form of a field of heliostats and an additional concentrator associated with the or each window.
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Accused Products
Abstract
A solar energy system comprises a solar absorber in the form of a solar boiler tank with a lower working liquid region having a liquid inlet and filled with a working liquid capable of boiling under a predetermined pressure, and an upper vapor accumulation region having a vapor outlet for withdrawing from the tank a vapor created in the tank. The system further comprises vapor utilization means associated with the vapor outlet. The solar boiler tank has at least one transparent window to receive and pass towards the working liquid highly concentrated solar radiation. The system also comprises means for controlling the pressure of vapor in the vapor accumulation region to make the working liquid boil at the predetermined pressure.
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Citations
22 Claims
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1. A solar energy system comprising
a solar absorber in the form of a solar boiler tank with a lower working liquid region having a liquid inlet and filled with a working liquid capable of absorbing highly concentrated solar radiation and boiling thereupon under a predetermined pressure, and an upper vapor accumulation region having a vapor outlet for withdrawing from the tank a vapor created in the tank, vapor utilization means associated with said vapor outlet, said solar boiler tank having at least one transparent window to receive and pass towards the working liquid highly concentrated solar radiation towards the working liquid, and a solar radiation concentration system in the form of a field of heliostats and an additional concentrator associated with the or each window.
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19. A solar energy system comprising
a solar absorber in the form of a solar boiler tank with a lower working liquid region having a liquid inlet and filled with a working liquid capable of absorbing highly concentrated solar radiation and boiling thereupon under a predetermined pressure, and an upper vapor accumulation region having a vapor outlet for withdrawing from the tank a vapor created in the tank, vapor utilization means associated with said vapor outlet, said solar boiler tank having at least one transparent window to receive and pass towards the working liquid highly concentrated solar radiation towards the working liquid, wherein said vapor utilization means is designed to use vapor of such working liquid that develops high pressures when heated to high temperatures, wherein the vapor utilization means are adapted to function at two cycles utilizing, respectively, a first working liquid and a second working fluid, so that in a primary cycle, said first working liquid is used which boils in said solar boiler tank at relatively low pressures, whilst in a secondary cycle, the first working liquid vapor'"'"'s heat is utilized for heating or evaporating said second working fluid.
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22. A solar energy system comprising
a solor abosorber in the form of a solar boiler tank with a lower working liquid region having a liquid inlet and filled with a working liquid capable of absorbing highly concentrated solar radiation and boiling thereupon under a predetermined pressure, and an upper vapor accumulation region having a vapor outlet for withdrawing from the tank a vapor created in the tank, vapor utilization means associated with said vapor outlet, said solar boiler tank having at least one transparent window to receive and pass towards the working liquid highly concentrated solar radiation towards the working liquid, wherein said window is located at said lower working fluid region of the tank, whereby the window is immersed in said working fluid and is prevented from overheating.
Specification