Cup Anemometers’ Loss of Performance Due to Ageing Processes, and Its Effect on Annual Energy Production (AEP) Estimates

The deviation of calibration coefficients from five cup anemometer models over time was analyzed. The analysis was based on a series of laboratory calibrations between January 2001 and August 2010. The analysis was performed on two different groups of anemometers: (1) anemometers not used for any in...

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Bibliographic Details
Published inEnergies (Basel) Vol. 5; no. 5; pp. 1664 - 1685
Main Authors Pindado, Santiago, Barrero-Gil, Antonio, Sanz, Alfredo
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.05.2012
Subjects
Aerospace materials
Aging
anemometer calibration
anemometer loss of performance
anemometer wear and tear
Annual Energy Production (AEP)
Calibration
cup anemometer
Energy industry
MEASNET
recalibration schedule
Velocity
Wind power
Spain
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Summary:The deviation of calibration coefficients from five cup anemometer models over time was analyzed. The analysis was based on a series of laboratory calibrations between January 2001 and August 2010. The analysis was performed on two different groups of anemometers: (1) anemometers not used for any industrial purpose (that is, just stored); and (2) anemometers used in different industrial applications (mainly in the field—or outside—applications like wind farms). Results indicate a loss of performance of the studied anemometers over time. In the case of the unused anemometers the degradation shows a clear pattern. In the case of the anemometers used in the field, the data analyzed also suggest a loss of performance, yet the degradation does not show a clear trend. A recalibration schedule is proposed based on the observed performances variations.
ISSN:1996-1073
1996-1073
DOI:10.3390/en5051664