Print Email Facebook Twitter A probabilistic long-term framework for site-specific erosion analysis of wind turbine blades Title A probabilistic long-term framework for site-specific erosion analysis of wind turbine blades: A case study of 31 Dutch sites Author Verma, Amrit Shankar (TU Delft Aerospace Manufacturing Technologies; SINTEF Ocean) Jiang, Zhiyu (University of Agder) Ren, Zhengru (Norwegian University of Science and Technology (NTNU)) Caboni, Marco (TNO Energy Transition) Verhoef, Hans (TNO Energy Transition) van der Mijle-Meijer, Harald (TNO Energy Transition) Castro, Saullo G.P. (TU Delft Aerospace Structures & Computational Mechanics) Teuwen, Julie J.E. (TU Delft Aerospace Manufacturing Technologies) Date 2021 Abstract Rain-induced leading-edge erosion (LEE) of wind turbine blades (WTBs) is associated with high repair and maintenance costs. The effects of LEE can be triggered in less than 1 to 2 years for some wind turbine sites, whereas it may take several years for others. In addition, the growth of erosion may also differ for different blades and turbines operating at the same site. Hence, LEE is a site- and turbine-specific problem. In this paper, we propose a probabilistic long-term framework for assessing site-specific lifetime of a WTB coating system. Case studies are presented for 1.5 and 10 MW wind turbines, where geographic bubble charts for the leading-edge lifetime and number of repairs expected over the blade's service life are established for 31 sites in the Netherlands. The proposed framework efficiently captures the effects of spatial and orographic features of the sites and wind turbine specifications on LEE calculations. For instance, the erosion is highest at the coastal sites and for sites located at higher altitudes. In addition, erosion is faster for turbines associated with higher tip speeds, and the effects are critical for such sites where the exceedance probability for rated wind conditions are high. The study will aid in the development of efficient operation and maintenance strategies for wind farms. Subject coatingsleading-edge erosionoperation and maintenancewind energywind turbine bladesedge erosionOA-Fund TU Delft To reference this document use: http://resolver.tudelft.nl/uuid:a19a4969-beee-4eb8-af4c-e3fc6e373b9f DOI https://doi.org/10.1002/we.2634 ISSN 1095-4244 Source Wind Energy, 24 (11), 1315-1336 Part of collection Institutional Repository Document type journal article Rights © 2021 Amrit Shankar Verma, Zhiyu Jiang, Zhengru Ren, Marco Caboni, Hans Verhoef, Harald van der Mijle-Meijer, Saullo G.P. Castro, Julie J.E. Teuwen Files PDF we.2634.pdf 5.59 MB Close viewer /islandora/object/uuid:a19a4969-beee-4eb8-af4c-e3fc6e373b9f/datastream/OBJ/view