| Description |
1 volume (various pagings) : digital, PDF file. |
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text txt rdacontent |
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computer c rdamedia |
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online resource cr rdacarrier |
| Series |
NREL/SR ; 550-32282 |
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NREL/SR ; 550-32282.
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| System Details |
Mode of access: Internet from the NREL web site. Address as of 12/29/08: http://www.nrel.gov/docs/fy08osti/32282.pdf; current access available via PURL. |
| Note |
Title from title screen (viewed June 20, 2008). |
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"May 2008." |
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"Subcontract report." |
| Summary |
Extensive wind-tunnel tests were conducted on parabolic trough solar collectors to determine practical wind loads applicable to the structural design for stress and deformation, as well as the local component design for the concentrator reflectors. The overall dynamic loads and simultaneous pressure distributions on the concentrator were measured using force balances and a multi-pressure data acquisition system, respectively, in a boundary layer wind tunnel at Cermak Peterka Petersen. Various test configurations were examined, including an isolated collector and solar field collectors at different positions. Significant test results are presented and discussed in detail. Overall, the wind-tunnel tests produced sufficient data that can be used by designers of the present and future for a variety of design practices. Several recommendations are made for future work. The validity of the wind-tunnel data is particularly important. Ultimately, the acceptability of the test results should be based on model-to-full-scale comparison, which requires measurement of wind loads on a full-scale solar collector. Should further wind tunnel study prove useful, the pressure test model should attempt to increase the pressure tap installation density to enhance the resolution of discrete pressure distribution data. |
| Subject |
Parabolic troughs -- Testing.
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Solar collectors -- Research.
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Aerodynamic load -- Measurement.
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Wind tunnels.
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| Added Author |
Hosoya, N.
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Cermak Peterka Petersen, Inc.
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Solargenix.
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Kearney & Associates.
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National Renewable Energy Laboratory (U.S.)
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| Gpo Item No. |
0430-P-05 (online) |
| Sudoc No. |
E 9.18:NREL/SR-550-32282 |
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