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

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Description

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 ... continued below

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Pages: 271

Creation Information

Peterka, J.A.; Tan, Z.; Bienkiewicz, B. & Cermak, J.E. November 1, 1988.

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Description

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.

Physical Description

Pages: 271

Notes

NTIS, PC A12/MF A01 - OSTI; 1.

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  • Other Information: Portions of this document are illegible in microfiche products

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  • Other: DE89000852
  • Report No.: SERI/STR-253-3431
  • Grant Number: AC02-83CH10093
  • Office of Scientific & Technical Information Report Number: 6374739
  • Archival Resource Key: ark:/67531/metadc1206331

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • November 1, 1988

Added to The UNT Digital Library

  • July 5, 2018, 11:11 p.m.

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  • Oct. 17, 2018, 4:56 p.m.

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Peterka, J.A.; Tan, Z.; Bienkiewicz, B. & Cermak, J.E. Wind loads on heliostats and parabolic dish collectors: Final subcontractor report, report, November 1, 1988; United States. (digital.library.unt.edu/ark:/67531/metadc1206331/: accessed November 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.