Link to document:
Status
Electronic Resource
Call number
Publication
5105 90 DOE JPL 1060 48; Report; January 1982.
Language
Library's review
ABSTRACT:
This is a status and technology development report on Dish Concentrators for Solar Thermal Energy. A wide variety of point-focusing concentrators are under consideration for solar thermal energy use. They are reviewed briefly in this paper. These concentrators differ in such
This is a status and technology development report on Dish Concentrators for Solar Thermal Energy. A wide variety of point-focusing concentrators are under consideration for solar thermal energy use. They are reviewed briefly in this paper. These concentrators differ in such
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characteristics as optical configuration, optical materials, structure for support of the optical elements and of the receiver, mount, foundation, drive, and controls. Point-focusing concentrators need good optical efficiency and, especially for high-temperature applications, high geometric concentration ratio. Most important for the future, however, is low installed cost and low lifetime cost. Critical cost contributors for quantity production are the cost of materials and the cost of installation labor. Technology development for concentrators is needed in such areas as optical materials, establishment of design wind speeds and wind loads (including array interactions), structural configurations, stability of -structural polymeric and forest-product materials during environmental exposure, and cleaning and maintenance of optical surfaces. Especially needed is field testing of complete collectors, i.e., concentrators with receivers and controls. Show Less