- Author
-
Jenkins, D. R.
|
Mathey, R. G.
- Title
- Hail Impact Testing Procedure for Solar Collector Covers.
- Coporate
- National Bureau of Standards, Washington, DC
- Sponsor
- Department of Energy, Washington, DC
- Report
-
NBSIR 82-2487
April 1982
- Distribution
- Available from National Technical Information Service
- Keywords
-
coverings; impact tests; hail
|
impact testing
|
solar collectors
- Identifiers
- solar collectors
- Abstract
- This report presents laboratory test results which simulate hail impact on solar collector covers. The general objective of the work is to contribute to the development of a test method for evaluating the resistance of solar collector covers to this type of loading. A procedure for such testing is described as well as results obtained with ice balls impacting four typical collector cover materials. Aspects which are discussed include the preparation of ice balls, the design and operation of a launcher for ice ball propulsion, the method of mounting cover panel specimens, the selection of ice ball velocity and impact location, and techniques for failure or damage assessment.