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Title: Semi transparent solar energy thermal storage device

Patent ·
OSTI ID:6479893

A visually transmitting solar energy absorbing thermal storage module includes a thermal storage liquid containment chamber defined by an interior solar absorber panel, an exterior transparent panel having a heat mirror surface substantially covering the exterior surface thereof and associated top, bottom and side walls, Evaporation of the thermal storage liquid is controlled by a low vapor pressure liquid layer that floats on and seals the top surface of the liquid. Porous filter plugs are placed in filler holes of the module. An algicide and a chelating compound are added to the liquid to control biological and chemical activity while retaining visual clarity. A plurality of modules may be supported in stacked relation by a support frame to form a thermal storage wall structure.

Assignee:
Iowa State University Research Foundation
Patent Number(s):
US 4523577
OSTI ID:
6479893
Resource Relation:
Patent File Date: Filed date 4 Aug 1982; Other Information: PAT-APPL-405067
Country of Publication:
United States
Language:
English