Evaluation of Wind Shear Coefficients, Surface Roughness and Energy Yields over Inland Locations in Namibia
| Autor: | Freddie L. Inambao, Maduako E. Okorie, Zivayi Chiguvare |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Hydrology
010504 meteorology & atmospheric sciences 020209 energy 02 engineering and technology Surface finish Atmospheric sciences 01 natural sciences Industrial and Manufacturing Engineering Wind profile power law Geography Roughness length Performance ratio Artificial Intelligence Wind shear 0202 electrical engineering electronic engineering information engineering Surface roughness Daylight Energy (signal processing) 0105 earth and related environmental sciences |
| Zdroj: | Procedia Manufacturing. 7:630-638 |
| ISSN: | 2351-9789 |
| DOI: | 10.1016/j.promfg.2016.12.094 |
| Popis: | Wind shear coefficients and roughness lengths over inland locations in southern Namibia were evaluated. Ten-minute average wind data collected at Korabib and Warmbad over a one year period were utilized. Mean values of wind shear coefficients are 0.197 and 0.132 and the roughness lengths are 0.187 and 0.017 m at Korabib and Warmbad respectively. Extrapolated hub height speeds and energy yield were found to depend on the wind shear coefficients. Both parameters recorded maximum and minimum values during winter and summer months, and maximum and minimum values during night stable hours and daylight hours respectively. Significant influence of local topographical features on WSCs variation with direction was evident. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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