Structural concepts for large solar concentratorsSolar collectors for space use are examined, including both early designs and current concepts. In particular, attention is given to stiff sandwich panels and aluminum dishes as well as inflated and umbrella-type membrane configurations. The Sunflower concentrator is described as an example of a high-efficiency collector. It is concluded that stiff reflector panels are most likely to provide the long-term consistent accuracy necessary for low-orbit operation. A new configuration consisting of a Pactruss backup structure, with identical panels installed after deployment in space, is presented. It is estimated that concentration ratios in excess of 2000 can be achieved with this concept.
Document ID
19870028656
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hedgepeth, J. M. (Astro Aerospace Corp. Carpinteria, CA, United States)
Miller, R. K. (Southern California, University Los Angeles, CA, United States)