Wind loads on heliostats and parabolic dish collectors: Final subcontractor report

Technical Report · Tue Nov 01 00:00:00 EST 1988

DOI:https://doi.org/10.2172/6374739· OSTI ID:6374739

Peterka, J. A.; Tan, Z.; Bienkiewicz, B.; Cermak, J. E.

A major intent of this study was to define wind load reduction factors for parabolic dish solar collectors within a field protected by upwind collectors, wind protective fences, or other blockages. This information will help researchers improve the economy of parabolic collector support structures and drive mechanisms. The method used in the study was to generalize wind load data obtained during tests on model collectors placed in a modeled atmospheric wind in a boundary-layer wind tunnel. A second objective of the study was to confirm and document a sensitivity in load to level of turbulence, or gustiness, in the approaching wind. A key finding was that wind-load reduction factors for forces (horizontal and vertical) were roughly similar to those for flat heliostats, with some forces significantly less than those for flat shapes. However, load reductions for moments showed a smaller load reduction, particularly for the azimuth moment. The lack of load reduction could be attributed to collector shape, but specific flow features responsible for and methods to induce a load reduction were not explored. 62 figs., 13 tabs.

• Research Organization: Solar Energy Research Inst. (SERI), Golden, CO (United States)
• DOE Contract Number: AC02-83CH10093
• OSTI ID: 6374739
• Report Number(s): SERI/STR-253-3431; ON: DE89000852
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
HELIOSTATS
WIND LOADS
PARABOLIC DISH COLLECTORS
NUMERICAL DATA
PROGRESS REPORT
SOLAR COLLECTORS
TURBULENCE
WIND
WIND TUNNELS
CONCENTRATING COLLECTORS
DATA
DOCUMENT TYPES
DYNAMIC LOADS
EQUIPMENT
INFORMATION
PARABOLIC COLLECTORS
SOLAR EQUIPMENT
TUNNELS
UNDERGROUND FACILITIES
140700* - Solar Thermal Power Systems