Cup Anemometers’ Loss of Performance Due to Ageing Processes, and Its Effect on Annual Energy Production AEP EstimatesReport as inadecuate




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1

IDR-UPM, ETSIA, Universidad Politécnica de Madrid Polytechnic University of Madrid, Pza. del Cardenal Cisneros 3, Madrid 28040, Spain

2

Aerospace Propulsion and Fluid Mechanics Department, ETSIA, Universidad Politécnica de Madrid Polytechnic University of Madrid, Pza. del Cardenal Cisneros 3, Madrid 28040, Spain

3

Department of Aerospace Materials and Production, ETSIA, Universidad Politécnica de Madrid Polytechnic University of Madrid, Pza. del Cardenal Cisneros 3, Madrid 28040, Spain





*

Author to whom correspondence should be addressed.



Abstract 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. View Full-Text

Keywords: anemometer calibration; cup anemometer; MEASNET; Annual Energy Production AEP; recalibration schedule; anemometer wear and tear; anemometer loss of performance anemometer calibration; cup anemometer; MEASNET; Annual Energy Production AEP; recalibration schedule; anemometer wear and tear; anemometer loss of performance





Author: Santiago Pindado 1,* , Antonio Barrero-Gil 2 and Alfredo Sanz 3

Source: http://mdpi.com/



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