Semi-concentrating solar energy collector
Patent
·
OSTI ID:5641411
A solar collector is described which consists of generally semicylindrical reflectors disposed in parallel relationship with the open sides of the reflectors disposed in a plane, a transparent hollow tube disposed within each reflector and adapted to carry a liquid from one end toward the other. The tubes have on the interior surface thereof an array of nested cube-corners, and absorber means disposed in the tube to absorb sun energy efficiently to heat the surface thereof. The transparent tube interior surface is defined by cube-corners having an index of refraction substantially different from that of air.
- Assignee:
- Minnesota Mining and Manufacturing Co., St. Paul, MN
- Patent Number(s):
- US 4586489
- OSTI ID:
- 5641411
- Country of Publication:
- United States
- Language:
- English
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