Testing and evaluation of Second-Generation Heliostat mirror modules
The testing and evaluation of the Second Generation Heliostat mirror modules are reported here. It was found that all of the previous design problems of mirror modules, such as silver corrosion, thermal defocus, and high glass stress, were eliminated by one or more of these designs. The single most important conclusion to be drawn from this program is that laminated glass mirror module designs are the most technically conservative; it is Sandia's recommendation that this concept be used for near-term applications. Two other Second Generation designs were found to have potential for reduced weight and improved performance, but one design required some significant design changes, and both require further outdoor testing to better estimate their lifetime potential.
- Research Organization:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5283275
- Report Number(s):
- SAND81-8263; ON: DE82007934
- Resource Relation:
- Other Information: Portions of document are illegible
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HELIOSTATS
MIRRORS
COMPARATIVE EVALUATIONS
TESTING
CORROSION
CRACK PROPAGATION
DEFORMATION
DESIGN
EXPERIMENT PLANNING
GLASS
HAIL
IMPACT TESTS
PERFORMANCE
RECOMMENDATIONS
REFLECTIVITY
SERVICE LIFE
STRESSES
THERMAL CYCLING
WEIGHT
WIND LOADS
ATMOSPHERIC PRECIPITATIONS
CHEMICAL REACTIONS
DYNAMIC LOADS
EQUIPMENT
MATERIALS TESTING
MECHANICAL TESTS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PLANNING
SOLAR EQUIPMENT
SURFACE PROPERTIES
CSP
Concentrating Solar Power
141000* - Solar Collectors & Concentrators
140702 - Solar Thermal Power Systems- Central Receiver