Advanced composites for stressed-membrane heliostats

K. Ramohalli, B. Butler and G. Visvanathan

Energy, 1987, vol. 12, issue 3, 245-259

Abstract: The concept of achieving ultra low cost (∼- $20/m2) and ultra low weight (5 kg/m2) for heliostats is explored theoretically and experimentally; the full-scale size is up to 15-m diameter. The basic innovation of a taut fishnet supporting a stretched membrane across a ring frame is the central theme. Variations include double membranes—a reflective membrane over a structural membrane which can be composed of steel wires or graphite fiber-polymer matrix composites. Wood and graphite composites may be used for the ring frame. The non-linear problem of stress-strain analysis is formulated and solved using NASTRAN. At the time of this reporting, results for the smaller sizes are available. The analysis provides a basis for the design, fabrication, and cost estimates.

Date: 1987
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:12:y:1987:i:3:p:245-259

DOI: 10.1016/0360-5442(87)90083-1

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