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U.S. Department of Energy
Office of Scientific and Technical Information

Solar collector

Patent ·
OSTI ID:5907246
A solar collector is disclosed comprised of a frame and a plurality of tubular collector elements. Each collector element is comprised of an outer transparent tube, a metallic absorber tube, and an intermediate transparent tube which encloses the absorber tube. The absorber tube is coated with an absorptive coating and the outer tube is coated over a significant portion of its circumference with a reflective coating to reflect solar radiation onto the absorber tube. The intermediate tube serves to reduce convective and conductive heat losses, provides a structural support for the absorber tube, and chemically isolates the coated absorber tube from the reflective coating on the outer tube.
Assignee:
National Patent Development Corp.
Patent Number(s):
US 4153042
OSTI ID:
5907246
Country of Publication:
United States
Language:
English

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