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Variation of leading-edge-erosion relevant precipitation parameters with location and weather type

Tilg, Anna-Maria and Hagen, Martin and Vejen, Flemming and Hasager, Charlotte Bay (2021) Variation of leading-edge-erosion relevant precipitation parameters with location and weather type. Meteorologische Zeitschrift, 30 (3), pp. 251-269. Borntraeger Science Publishers. doi: 10.1127/metz/2021/1063. ISSN 0941-2948.

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Official URL: http://doi.org/10.1127/metz/2021/1063

Abstract

Precipitation is a key driver of leading-edge erosion of wind turbine blades, which leads to a loss in annual energy production and high cost for repair of wind turbines. Precipitation type, drop size and their frequency are relevant parameters, but not easily available. Reflectivity-Rain Rate (Z-R) relationships as well as annual sums of rainfall amount and rainfall kinetic energy potentially could be used to estimate leading-edge erosion. Although Z-R relationships and amounts are known for several places, their spatial variation and dependence on weather types is unknown in the North Sea and Baltic Sea area. We analysed time series of multiple disdrometers located on the coast of the North Sea and Baltic Sea to characterize the variation and weather-type dependence of the Z-R relationship, precipitation type, rainfall amount and kinetic energy.The Z-R relationship as indication for the mean drop-size distribution showed small variations within different locations, but had a large variability for specific, but rare weather types. Only the precipitation types snow and hail showed some tendencies of weather-type dependence. Rainfall amount and rainfall kinetic energy were higher for stations in the eastern part of the North Sea compared to the western part and the Baltic Sea. Highest values were related to advection from the West. Overall, variations with location and weather type were found. These results will need to be considered in leading-edge erosion modelling and site assessment.

Item URL in elib:https://elib.dlr.de/143641/
Document Type:Article
Title:Variation of leading-edge-erosion relevant precipitation parameters with location and weather type
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Tilg, Anna-MariaTechnical University of Denmark, Roskilde, Denmarkhttps://orcid.org/0000-0003-1702-8002
Hagen, MartinDLR, IPAhttps://orcid.org/0000-0003-4714-0775
Vejen, FlemmingDanish Meteorological Institute, Copenhagen, DenmarkUNSPECIFIED
Hasager, Charlotte BayTechnical University of Denmark, Roskilde, Denmarkhttps://orcid.org/0000-0002-2124-5651
Date:8 July 2021
Journal or Publication Title:Meteorologische Zeitschrift
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:30
DOI :10.1127/metz/2021/1063
Page Range:pp. 251-269
Publisher:Borntraeger Science Publishers
ISSN:0941-2948
Status:Published
Keywords:Z-R relationship, Rainfall kinetic energy, North Sea, Baltic Sea, Wind energy
HGF - Research field:Energy
HGF - Program:Materials and Technologies for the Energy Transition
HGF - Program Themes:Photovoltaics and Wind Energy
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Wind Energy
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Institute of Atmospheric Physics > Transport Meteorology
Deposited By: Hagen, Dr.rer.nat. Martin
Deposited On:26 Aug 2021 08:56
Last Modified:26 Aug 2021 08:56

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