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Simulated hail impact testing of photovoltaic solar panelsTechniques used to simulate and study the effect of hail on photovoltaic solar panels are described. Simulated hail stones (frozen ice spheres projected at terminal velocity) or steel balls were applied by air guns, gravity drop, or static loading. Tests with simulated hail and steel balls yielded different results. The impact strength of 10 commercially available flat-plate photovoltaic modules was tested. It was found that none of the six panel designs incorporating clear potting silicone material as the outermost layer remained undamaged by 1-in. simulated hailstones, while a photovoltaic module equipped with a 0.188-in.-thick acrylic cover sheet would be able to withstand the impact of a 2-in.-diameter hailstone.
Document ID
19790032103
Document Type
Conference Proceedings
Authors
Moore, D. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wilson, A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ross, R. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
ENERGY PRODUCTION AND CONVERSION
Meeting Information
Combined environments: Technology interrelations; Twenty-fourth Annual Technical Meeting(Fort Worth, TX)
Distribution Limits
Public
Copyright
Other