Solar collectors having slidably removable reflective panels for use in solar thermal applications
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E04B-001/00
E04B-005/00
E04B-007/00
E04B-001/12
E04D-013/18
E04H-015/00
E04H-015/18
E04H-014/00
H01L-035/00
H01L-037/00
H01L-031/042
H02N-006/00
출원번호
US-0499661
(2009-07-08)
등록번호
US-8479463
(2013-07-09)
발명자
/ 주소
Gee, Randall C.
Audette, Scott
Brost, Randolph Carl
Farr, Adrian L.
Hawkins, Robert
White, David
Thomson, Shannon
출원인 / 주소
SkyFuel, Inc.
대리인 / 주소
Lathrop & Gage LLP
인용정보
피인용 횟수 :
3인용 특허 :
172
초록▼
Provided herein are solar collectors having reflective sheets which are slidably insertable and/or removable for quick installation, construction, removal, repair, and/or replacement. Also provided are solar collectors having reflective sheets under tension. Further provided are methods for construc
Provided herein are solar collectors having reflective sheets which are slidably insertable and/or removable for quick installation, construction, removal, repair, and/or replacement. Also provided are solar collectors having reflective sheets under tension. Further provided are methods for constructing solar collectors. In another aspect, provided herein are guide rails for guiding and/or retaining slidably removable reflective sheets and holding the reflective sheets in a prescribed shape.
대표청구항▼
1. A guide rail for directing and retaining one or more slidably removable reflective sheets in a solar concentrator, and for maintaining the one or more slidably removable reflective sheets in a shape prescribed by the shape of the guide rail, the guide rail comprising a rail body, wherein the rail
1. A guide rail for directing and retaining one or more slidably removable reflective sheets in a solar concentrator, and for maintaining the one or more slidably removable reflective sheets in a shape prescribed by the shape of the guide rail, the guide rail comprising a rail body, wherein the rail body has a longitudinal axis and comprises a first longitudinal channel having an opening at an upper surface of the rail body and a retaining shape for retaining longitudinal edges of the one or more slidably removable reflective sheets, wherein the first longitudinal channel comprises an outer portion and an inner portion wider than the outer portion, wherein the one or more slidably removable reflective sheets reflect incident light to a solar receiver. 2. The guide rail of claim 1, wherein the rail body further comprises a second longitudinal channel having a retaining shape. 3. The guide rail of claim 2, wherein the second channel comprises an outer portion and an inner portion wider than the outer portion. 4. The guide rail of claim 1, wherein the guide rail guides and retains longitudinal hemmed edges or longitudinal hook edges of the one or more slidably removable reflective sheets. 5. The guide rail of claim 1, wherein the rail body further comprises an additional longitudinal channel sized and shaped for attachment to a supporting rib. 6. The guide rail of claim 1, wherein the rail body is comprised of a top piece joined to a bottom piece and wherein the top piece and the bottom piece respectively define top and bottom surfaces of the first longitudinal channel. 7. The guide rail of claim 1, wherein the rail body comprises a material selected from the group consisting of: a lubricious material, polyoxymethylene, aluminum, steel, a slip coating, polytetrafluoroethylene, an anodized coating and any combination of these. 8. The guide rail of claim 1, wherein the inner portion of each longitudinal channel has a depth selected from 0.080 inches to 0.250 inches. 9. The guide rail of claim 1, wherein the outer portion of each longitudinal channel has a depth selected from 0.050 inches to 0.125 inches. 10. The guide rail of claim 1, wherein the rail body further comprises one or more retaining means for retaining the one or more slidably removable reflective sheets along the longitudinal direction. 11. A concentrating solar collection assembly comprising the guide rail of claim 1 and a first slidably removable reflective sheet of the one or more slidably removable reflective sheets having a longitudinal edge retained in the first longitudinal channel, wherein the first slidably removable reflective sheet extends transversely from the guide rail. 12. The assembly of claim 11, further comprising a second slidably removable reflective sheet of the one or more slidably removable reflective sheets having a longitudinal edge retained in the first longitudinal channel, and wherein the first and second slidably removable reflective sheets extend transversely from the guide rail in opposite directions from one another. 13. The assembly of claim 12, wherein the first and second slidably removable reflective sheets have thicknesses selected from 0.020 inches to 0.080 inches. 14. The assembly of claim 12, wherein the first and second slidably removable reflective sheets comprise a material selected from the group consisting of aluminum, steel, a reflective film and any combination of these. 15. A reflective assembly for a concentrating solar collector comprising: a pair of guide rails for guiding and/or retaining longitudinal edges of one or more slidably removable reflective sheets;the one or more slidably removable reflective sheets having longitudinal edges mounted within longitudinal channels of the pair of guide rails;wherein each guide rail comprises a rail body, wherein the rail body has a longitudinal axis and comprises a first longitudinal channel having an opening at an upper surface of the rail body and a retaining shape for retaining a longitudinal edge of the one or more slidably removable reflective sheets, wherein the first longitudinal channel comprises an outer portion and an inner portion wider than the outer portion, wherein the one or more slidably removable reflective sheets reflect incident light to a solar receiver. 16. The reflective assembly of claim 15 wherein the guide rails are shaped so as to define an optical surface of the one or more slidably removable reflective sheets. 17. The reflective assembly of claim 16 wherein the optical surface reflects a substantial portion of incident light to a solar receiver. 18. A reflective assembly for a concentrating solar collector comprising: a pair of guide rails for guiding and/or retaining longitudinal edges of one or more slidably removable reflective sheets;the one or more slidably removable reflective sheets having longitudinal edges mounted within longitudinal channels of the pair of guide rails;wherein each guide rail comprises a channel in a supporting rib having an opening at an upper surface of the rail body and a retaining shape for retaining a longitudinal edge of the one or more slidably removable reflective sheets, wherein the channel comprises an outer portion and an inner portion wider than the outer portion, wherein the one or more slidably removable reflective sheets reflect incident light to a solar receiver. 19. The reflective assembly of claim 16, further comprising a transverse rail member mounted between the pair of guide rails for attaching to, supporting, or retaining one or more transverse edges of the one or more slidably removable reflective sheets. 20. The reflective assembly of claim 19 wherein the transverse rail member has one or more transverse channels for retaining the one or more transverse edges of the one or more slidably removable reflective sheets. 21. The reflective assembly of claim 19, wherein the transverse rail member is positioned to attach to, support, or retain the transverse edges of the one or more slidably removable reflective sheets at a rim of the reflective assembly. 22. The reflective assembly of claim 16, further comprising a pair of supporting ribs, wherein one guide rail is mounted on each supporting rib. 23. The reflective assembly of claim 22, wherein the supporting ribs span an entire length of the guide rails. 24. The reflective assembly of claim 16, wherein the longitudinal edges of the one or more slidably removable reflective sheets are longitudinal hemmed edges or longitudinal hook edges. 25. The reflective assembly of claim 16, wherein the guide rails apply tension to the one or more slidably removable reflective sheets. 26. The reflective assembly of claim 16, further comprising one or more springs attached to at least one of the pair of supporting ribs for placing the one or more slidably removable reflective sheets under tension. 27. A reflective trough for a concentrating solar collector comprising: a supporting structure;a plurality of supporting ribs; wherein the plurality of ribs are mounted on the supporting structure;a plurality of guide rails, wherein each guide rail is mounted on a supporting rib; anda plurality of slidably removable reflective sheets having longitudinal edges mounted within channels of the guide rails;wherein each guide rail comprises a rail body, wherein the rail body has a longitudinal axis and comprises a first longitudinal channel having an opening at an upper surface of the rail body and a retaining shape for retaining the longitudinal edges of the plurality of slidably removable reflective sheets, wherein the first longitudinal channel comprises an outer portion and an inner portion wider than the outer portion, wherein the plurality of slidably removable reflective sheets reflects incident light to a solar receiver. 28. A reflective trough for a concentrating solar collector comprising: a supporting structure;a plurality of supporting ribs; wherein the plurality of ribs are mounted on the supporting structure;a plurality of guide rails, wherein each guide rail is mounted on a supporting rib; anda plurality of slidably removable reflective sheets having longitudinal edges mounted within channels of the guide rails;wherein each guide rail comprises a channel in a supporting rib having an opening at an upper surface of the rail body, and having a retaining shape for retaining the longitudinal edges of the plurality of slidably removable reflective sheets, wherein the channel comprises an outer portion and an inner portion wider than the outer portion, wherein the plurality of slidably removable reflective sheets reflects incident light to a solar receiver. 29. The reflective trough of claim 27, wherein the guide rails define a shape of optical surfaces of the plurality of slidably removable reflective sheets. 30. The reflective trough of claim 27, further comprising a solar receiver mounted at a line of substantially optimal energy capture for absorbing a substantial portion of incident light. 31. The reflective trough of claim 27, further comprising one or more transverse rail members for attaching to, supporting, or retaining transverse edges of the plurality of slidably removable reflective sheets. 32. The reflective trough of claim 27, wherein the supporting structure comprises means for translating at least one of the plurality of supporting ribs in a transverse direction along the length of the reflective trough.
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