Dust Storm Simulation for Accelerated Life Testing of Solar Collector Mirrors

[+] Author and Article Information
R. M. Bethea, E. G. Collier

Department of Chemical Engineering, Texas Tech University, Lubbock, Texas 79409

J. D. Reichert

Department of Electrical Engineering, Texas Tech University, Lubbock, Texas 79409

J. Sol. Energy Eng 105(3), 329-335 (Aug 01, 1983) (7 pages) doi:10.1115/1.3266386 History: Received January 03, 1982; Online November 11, 2009


A dust storm simulation chamber has been designed based on worst-case conditions to simulate the effects of blowing dust and sand on candidate solar concentrator materials. After evaluation with common glass mirrors, the system was used to simulate field exposure of Carolina glass mirrors in the West Texas environment in terms of loss of reflectivity. System calibration was achieved by comparing actual exposure data over a three-year period to results obtained in the simulation chamber. It was found that a twenty-year service life can be simulated by 80 hrs. exposure in the dust storm chamber. Degradation of the Carolina glass mirrors has been shown to be primarily dependent on momentum transport to and kinetic energy deposition on the mirror surface during dust storms: annual reflectivity losses of 2.4 percent and 1.4 percent may be expected, respectively, from dust storm and the sum of all other effects.

Copyright © 1983 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In