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Deviation of Cup and Propeller Anemometer Calibration Results with Air Density

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Author(s): Santiago Pindado | Alfredo Sanz | Alain Wery

Journal: Energies
ISSN 1996-1073

Volume: 5;
Issue: 3;
Start page: 683;
Date: 2012;
Original page

Keywords: anemometer calibration | cup anemometer | propeller anemometer | annual energy production (AEP) | Annual Energy Production | environmental conditions | ambient conditions

ABSTRACT
The effect of air density variations on the calibration constants of several models of anemometers has been analyzed. The analysis was based on a series of calibrations between March 2003 and February 2011. Results indicate a linear behavior of both calibration constants with the air density. The effect of changes in air density on the measured wind speed by an anemometer was also studied. The results suggest that there can be an important deviation of the measured wind speed with changes in air density from the one at which the anemometer was calibrated, and therefore the need to take this effect into account when calculating wind power estimations.
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