Solar thermal receiver with concentric tube modules

a solar thermal and receiver technology, applied in solar heat systems, solar thermal energy generation, lighting and heating apparatus, etc., can solve the problems of complex drainage procedures, added costs, and additional part counts, and achieve low pressure drop, good heat transfer coefficient, and adequate receiver characteristics.
US20130220310A1Inactive Publication Date: 2013-08-29GREGORY CHRISTIAN THOMAS +1
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Patent Information

Authority / Receiving Office
US ยท United States
Patent Type
Applications(United States)
Current Assignee / Owner
GREGORY CHRISTIAN THOMAS
Publication Date
2013-08-29
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

A solar thermal receiver with concentric tube modules is disclosed. The outer two tubes (101, 102) of each module form an annular gap (104) for the inlet flow (109) of a heat transfer fluid (HTF). A third inner tube (103) allows for the outlet flow (108) of the HTF. Each of the concentric tube modules is bottom-supported so as to allow for thermal expansion. Embodiments may include a structural element (750) to mitigate oscillation of the concentric tube modules and / or a top-mounted bell-shaped cap (534).
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to and the benefit of U.S. Provisional Patent Application Ser. No. 61 / 406,384, filed Oct. 25, 2010, which is hereby incorporated herein by reference in its entirety for all purposes.TECHNICAL FIELD

[0002] Embodiments pertain to solar thermal receivers with concentric tube modules for converting concentrated sunlight into heat.BACKGROUND ART

[0003] Solar-Thermal Receivers convert concentrated sunlight, e.g., as coming from a heliostat field, into heat and are cooled by a heat transfer fluid (HTF) such as molten salt, oil, or water. In the prior art one example includes, a receiver having one or more panels of parallel absorber tubes. Fluid flow through said panels may be parallel or in an alternate / serpentine fashion. This may result in an additional part count, e.g., valves, manifolds; complex drainage procedures; added costs; and a significant pressure drop within the receiver.DISCLOSURE OF INVENTION

[0004] Emb...

Claims

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