IP Library Granted Patent US 7,234,303
Granted Patent B2
US 7,234,303 · App. 10/452,172 · Granted Jun 26, 2007

Polymer roof panel solar energy conversion device

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Quick Facts
Patent No.
US 7,234,303
App. No.
10/452,172
Granted
Jun 26, 2007
Kind
B2
Abstract

A solar energy conversion device comprises a solar collector configured to collect solar energy. The solar collector comprises a plurality of roof panels. Each of the panels comprises at least one roof sheet comprising at least one wall, and further comprises a substantially transparent thermoplastic polymer.

Claims (31)

1. A solar energy conversion device comprising:

a solar collector configured to collect solar energy, wherein said solar collector comprises a plurality of roof panels, each of said panels comprising at least one transparent, multi-wall thermoplastic polymer roof sheet that is pre-stressed in a tensile membrane stress state;

a fluid in contact with a bottom surface of said solar collector; and

a chimney coupled to said solar collector to allow said fluid to flow between said collector and said chimney.

2. The solar energy conversion device of claim 1 , wherein said thermoplastic polymer comprises a material selected from the group consisting of polycarbonate, polyethylene, polymethyl methacrylate, polyvinyl fluoride and polypropylene.

3. The solar energy conversion device of claim 1 , wherein said roof sheet comprises at least one of a twin-wall roof sheet, a triple-wall roof sheet and a five-wall roof sheet, and wherein said roof sheet further comprises a cross-sectional configuration of said walls to support said roof sheet.

4. The solar energy conversion device of claim 3 , wherein said cross-sectional configuration comprises at least one of a box configuration, a tunnel configuration and an inclined configuration.

5. The solar energy conversion device of claim 1 , wherein each wall of said roof sheet has thickness in the range from about 0.4 mm to about 2 mm.

6. The solar energy conversion device of claim 5 , wherein each wall of said roof sheet has thickness in the range from about 0.5 mm to about 1.2 mm.

7. The solar energy conversion device of claim 6 , wherein each wall of said roof sheet has thickness in the range from about 0.6 mm to about 0.9 mm.

8. The solar energy conversion device of claim 1 , wherein said roof sheet has thickness in the range from about 10 mm to about 50 mm.

9. The solar energy conversion device of claim 8 , wherein said roof sheet has thickness in the range from about 12 mm to about 25 mm.

10. The solar energy conversion device of claim 9 , wherein said roof sheet has thickness in the range from about 15 mm to about 18 mm.

11. The solar energy conversion device of claim 1 , wherein each of said roof panels has a heat transfer coefficient less than about 3 W/m 2 0 K.

12. The solar energy conversion device of claim 1 , wherein each of said roof sheet comprises at least one coating layer disposed on at least one of a top surface and a bottom surface of the roof sheet.

13. The solar energy conversion device of claim 12 , wherein said at least one coating layer comprises at least one of a biocidal layer, an anti-reflective layer, a self-cleaning layer, an ultra-violet ray protective layer, a condensation protective layer and combination thereof.

14. The solar energy conversion device of claim 1 , wherein each of said roof sheets has a length of at least about 12 meters.

15. The solar energy conversion device of claim 1 , wherein said fluid comprises air.

16. A solar energy conversion device comprising:

a solar collector to collect solar energy, said solar collector comprising a plurality of roof panels, wherein each of said roof panels comprises at least one transparent polycarbonate twin wall roof sheet, wherein said at least one roof sheet has a length of at least about 12 meters, has a thickness in the range from about 15 mm to about 18 mm, and comprises at least one coating layer disposed on at least one of a top surface and a bottom surface of said roof sheet;

a fluid in contact with a bottom surface of said solar collector;

a chimney coupled to said solar collector to allow said fluid to flow between said collector and said chimney;

a turbine configured to be driven by said fluid; and

a generator coupled to said turbine for the production of power from the motion of the turbine;

wherein said at least one roof sheet is a pre-stressed sheet in a tensile membrane stress state.

17. The solar energy conversion device of claim 1 , further comprising a turbine configured to be driven by said fluid.

18. A solar energy conversion device comprising:

a solar collector configured to collect solar energy, wherein said solar collector comprises a plurality of roof panels, each of said panels comprising at least one curved, transparent, multi-wall thermoplastic polymer roof sheet;

a fluid in contact with a bottom surface of said solar collector; and

a chimney coupled to said solar collector to allow said fluid to flow between said collector and said chimney;

wherein said at least one curved roof sheet has a curvature of up to about 500 millimeters concave with respect to the bottom surface of the solar collector.

Assignments (6)
NUNC PRO TUNC ASSIGNMENT Recorded Apr 13, 2025
From: SABIC GLOBAL TECHNOLOGIES B.V
To: F&S B.V
Reel/Frame 070825/0675 →
CHANGE OF NAME Recorded Jun 6, 2016
From: SABIC INNOVATIVE PLASTICS IP B.V.
To: SABIC GLOBAL TECHNOLOGIES B.V.
Reel/Frame 038883/0811 →
RELEASE OF SECURITY INTEREST Recorded Mar 17, 2014
From: CITIBANK, N.A.
To: SABIC INNOVATIVE PLASTICS IP B.V.
Reel/Frame 032459/0798 →
SECURITY AGREEMENT Recorded Aug 18, 2008
From: SABIC INNOVATIVE PLASTICS IP B.V.
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 021423/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 30, 2008
From: GENERAL ELECTRIC COMPANY
To: SABIC INNOVATIVE PLASTICS IP B.V.
Reel/Frame 021311/0259 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 29, 2003
From: THIAGARAJAN, CHINNIAH; ADRIAANSEN, FRANS ( NMN)
To: GENERAL ELECTRIC COMPANY
Reel/Frame 014540/0727 →