Solar Parabolic Trough Receiver with Glass Envelope - Diagram
Solar Parabolic Trough Receiver with Glass Envelope - Diagram

Image Details

  • Description: The heat collection element (the receiver) includes an evacuation nozzle, and glass to metal seals to preserve the vacuum between the glass envelope and the metal tube. Chemical sponges indicate the status of the vacuum.
  • Source: http://www.nrel.gov/csp/troughnet/pdfs/segs_ls2_solar_collector.pdf
  • Source info: Figure 3 of "SEGS LS-2 Solar Collector Test Results" SAND94-1884 report from Sandia National Laboratories. Printed December 1994.
  • License: Public Domain