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

Sheet-flow concrete solar collector

Patent ·
OSTI ID:6280602
An open-flow concrete flat-plate solar collector has a grooved photothermal conversion surface coated with an impermeable selective coating of high capillarity. A special header insures spreading of the heat transfer fluid over the photothermal conversion surface even if the collector is not perfectly level. The collector is used in a closed loop heat exchanger system or a closed loop thermosiphoning system with, as a heat transfer fluid , distilled water to which is added an antistatic agent. The collector may be free-standing, or it can be added onto an existing inclined roof, or incorporated as an integral part of such roof. This collector preferably is used for applications up to 150* F.
Assignee:
EDB-83-110332
Patent Number(s):
US 4378788
OSTI ID:
6280602
Country of Publication:
United States
Language:
English

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