The lustering of TBC-2

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Description

Two test bed concentrators (TBCs) were designed to provide high-performance test beds for advanced solar receivers and converters. However, the second-surface silvered-glass mirror facets on the TBCs, which were originally manufactured by the Jet Propulsion Laboratory, have experienced severe silver corrosion. To restore reflectance, TBC-2 was refurbished with a lustering technique developed at Sandia National Laboratories. In the lustering technique, second-surface silvered thin-glass mirrors were applied over the corroded facets, thereby increasing the dish reflectivity and raising the available power of TBC-2 from approximately 70 to 78 kW{sub t}. Degradation of the original optical accuracy of the TBC facets was ... continued below

Physical Description

30 p.

Creation Information

Diver, R.B.; Jones, S.; Robb, S. & Mahoney, A.R. May 1, 1995.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Two test bed concentrators (TBCs) were designed to provide high-performance test beds for advanced solar receivers and converters. However, the second-surface silvered-glass mirror facets on the TBCs, which were originally manufactured by the Jet Propulsion Laboratory, have experienced severe silver corrosion. To restore reflectance, TBC-2 was refurbished with a lustering technique developed at Sandia National Laboratories. In the lustering technique, second-surface silvered thin-glass mirrors were applied over the corroded facets, thereby increasing the dish reflectivity and raising the available power of TBC-2 from approximately 70 to 78 kW{sub t}. Degradation of the original optical accuracy of the TBC facets was determined to be minimal. Lustering was chosen over facet replacement because of the lower cost, the anticipated improvement in corrosion resistance, and the shorter project duration. This report includes background information, details of the lustering process, and test results from TBC-2 characterization, both before and after lustering.

Physical Description

30 p.

Notes

OSTI as DE95012113

Source

  • Other Information: PBD: May 1995

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  • Other: DE95012113
  • Report No.: SAND--94-1832
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/72940 | External Link
  • Office of Scientific & Technical Information Report Number: 72940
  • Archival Resource Key: ark:/67531/metadc711107

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • May 1, 1995

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

Description Last Updated

  • April 14, 2016, 4:17 p.m.

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Citations, Rights, Re-Use

Diver, R.B.; Jones, S.; Robb, S. & Mahoney, A.R. The lustering of TBC-2, report, May 1, 1995; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc711107/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.