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US3957030A
Expired / Lapsed
US
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Solar energy power system
Assignee: National Aeronautics and Space Administration
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Filing: 1975-03-21
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Granted: 1976-05-18
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Expires: 1995-03-21
Abstract
Abstract A solar energy vapor (freon) powered system for generating electrical energy in which a portion of the heat absorbed from the sun in daylight is stored for use during darkness by a thermal capacitor in which a mass of Pyrone, having a high thermal capacity, liquifies when heat is applied to it and goes through a solidification process to provide a heat output. A highly efficient solar boiler is constructed utilizing an anodized titanium surface and a particular combination of shaped boiler tubes and complementary reflectors. The overall efficiency of the system is further improved by a unique arrangement of heat recovery devices.
Inventors
- 👤 Billy K. Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:23
CPC Classifications
B; B64; B64G; B64G1/00; B64G1/22; B64G1/42; B64G1/44; B64G1/446; B64G1/46; B64G1/50; B64G1/503; F; F03; F03G; F03G6/00; F03G6/003; F03G6/004; F03G6/071; F03G6/098; F03G6/108; F03G6/111; F03G6/121; F03G6/127; F24; F24S; F24S23/00; F24S23/70; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/46; Y10; Y10S; Y10S126/00; Y10S126/907; Y10S126/908
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
88 words
A solar boiler comprising: a reflector assembly comprising at least one V-shaped channel; and a plurality of elongated, diamond-shaped fluid coupled tubes lying generally within said V-shaped channel and along a plane which bisects the apex of said V-shaped channel and which plane intersects opposite edge pairs of corners of each tube, the tubes extending lengthwise in a direction parallel with said channel; whereby solar radiant energy striking said reflector is directed onto the surface of one tube and then over to the surface of an adjacent tube.
Claim 2
Dependent Claim
88 words
A solar boiler comprising: a reflector assembly comprising at least one V-shaped channel; and a plurality of elongated, diamond-shaped fluid coupled tubes lying generally within said V-shaped channel and along a plane which bisects the apex of said V-shaped channel and which plane intersects opposite edge pairs of corners of each tube, the tubes extending lengthwise in a direction parallel with said channel; whereby solar radiant energy striking said reflector is directed onto the surface of one tube and then over to the surface of an adjacent tube.
Claim 3
Dependent Claim
26 words
A solar boiler as set forth in claim 1 wherein said outer surface of said boiler tubes is of anodized titanium and said surface is blue.
Claim 4
Dependent Claim
34 words
A solar energy power system as set forth in claim 2 wherein said outer surface has an absorptivity of from 0.70 to 0.74 and said surface has an emissivity of between 0.15 and 0.16.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-18 | 1979-11-17 | 1980-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-18 | 1983-11-17 | 1984-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-18 | 1987-11-17 | 1988-05-18 | $7700.00 | Window Closed / Lapsed |