Predicting wind power at turbine level from an anemometer record at arbitrary height
Conference
·
OSTI ID:7352043
Wind speed variation with height in the frictional boundary layer depends on wind speed, surface roughness and thermodynamic stability. Over relatively flat terrain, suitable for extensive fields of wind energy extractors, useful wind increases in proportion to the one-seventh power of height above ground. This closely approximates the more general and theoretically based logarithmic model above standard 10 meter anemometer height and with the 0.03m roughness length often found by observation. Several data collections have been assembled to verify the utility of this one-seventh power law, from special meteorological research towers as well as long-term records from regular weather stations where the anemometer happened to be moved on occasion. A minor correction for lower speeds of 2--8m/s improves predictions but is not essential to gross power availability calculations for large turbine blades.
- Research Organization:
- Sandia Labs., Albuquerque, N.Mex. (USA)
- DOE Contract Number:
- AT(29-1)-789
- OSTI ID:
- 7352043
- Report Number(s):
- SAND-76-5397; CONF-760909-1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Applicability of Nacelle Anemometer Measurements for Use in Turbine Power Performance Tests: Preprint
Height extrapolation of wind data
Height extrapolation of short- and long-term averaged wind data
Conference
·
Wed May 01 00:00:00 EDT 2002
·
OSTI ID:15000846
Height extrapolation of wind data
Journal Article
·
Thu Jan 31 23:00:00 EST 1985
· J. Sol. Energy Eng.; (United States)
·
OSTI ID:5635759
Height extrapolation of short- and long-term averaged wind data
Conference
·
Sun May 01 00:00:00 EDT 1983
·
OSTI ID:6176146