Design of the support structure, drive pedestal, and controls for a solar concentrator Metadata

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  • Main Title Design of the support structure, drive pedestal, and controls for a solar concentrator


  • Author: Goldberg, V.R.
    Creator Type: Personal
  • Author: Ford, J.L.
    Creator Type: Personal
  • Author: Anderson, A.E. (WG Associates, Dallas, TX (United States))
    Creator Type: Personal


  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: DOE; USDOE, Washington, DC (United States)


  • Name: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: United States
  • Name: WG Associates, Dallas, TX (United States)
    Place of Publication: United States


  • Creation: 1991-08-01


  • English


  • Content Description: The glass/metal McDonnell-Douglas dish is the state-of-the-art of parabolic dish concentrators. Because of the perceived high production cost of this concentrator, the Department of Energy's Solar Thermal Program is developing stretch-membrane technology for large (75 kWt) solar concentrators for integration with receivers and engines in 25 kWe dish-Stirling systems. The objective of this development effort is to reduce the cost of the concentrator while maintaining the high levels of performance characteristic of glass-metal dishes. Under contract to Sandia National Laboratories, Science Applications International Corporation, Solar Kinetics Inc. and WG Associates are developing a faceted stretched-membrane heliostat technology. This design will result in a low-risk, near-term concentrator for dish-Stirling systems. WG Associates has designed the support structure, drives and tracking controls for this dish. The structure is configured to support 12 stretched-membrane, 3.5-meter diameter facets in a shaped dish configuration. The dish design is sized to power a dish-Stirling system capable of producing 25 kW (electric). In the design of the structure, trade-off studies were conducted to determine the best'' facet arrangement, dish contour, dish focal length, tracking control and walk-off protection. As part of the design, in-depth analyses were performed to evaluate pointing accuracy, compliance with AISC steel design codes, and the economics of fabrication and installation. Detailed fabrication and installation drawings were produced, and initial production cost estimates for the dish were developed. These issues, and the final dish design, are presented in this report. 7 refs., 33 figs., 18 tabs.
  • Physical Description: Pages: (114 p)


  • STI Subject Categories: 14 Solar Energy
  • Keyword: Dimensions
  • Keyword: Solar Tracking 141000* -- Solar Collectors & Concentrators
  • STI Subject Categories: 140700 -- Solar Thermal Power Systems
  • Keyword: Conversion
  • Keyword: Solar Equipment
  • Keyword: Solar Collectors
  • Keyword: Energy Conversion
  • Keyword: Solar Energy Conversion
  • Keyword: Equipment
  • Keyword: Mechanical Structures
  • Keyword: Design
  • Keyword: Heliostats
  • Keyword: Solar Cell Arrays
  • Keyword: Control Equipment
  • Keyword: Solar Tracking Systems
  • Keyword: Solar Concentrators
  • Keyword: Membranes
  • Keyword: Solar Thermal Conversion


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report


  • Text


  • Other: DE92000604
  • Report No.: SAND-91-7007
  • Grant Number: AC04-76DP00789
  • DOI: 10.2172/5301520
  • Office of Scientific & Technical Information Report Number: 5301520
  • Archival Resource Key: ark:/67531/metadc1068820


  • Display Note: OSTI; NTIS; GPO Dep.