Posters
Come meet the poster presenters to ask them questions and discuss their work
We would like to invite you to come and see the posters at our upcoming conference. The posters will showcase a diverse range of research topics, and will give delegates an opportunity to engage with the authors and learn more about their work. Whether you are a seasoned researcher or simply curious about the latest developments in your field, we believe that the posters will offer something of interest to everyone. So please join us at the conference and take advantage of this opportunity to learn and engage with your peers in industry and the academic community.
PO387: IMERG satellite rain observations and NEWA wind speed results analyzed from 2014 to 2024 are used as input to estimate erosion risk using the impingement blade lifetime model at eight sites across Europe within the EU AIRE project
Charlotte Hasager, Professor, DTU
Abstract
The overall aim is to characterize the potential risk of blade erosion and estimate blade lifetime using state-of-the-art homogeneous and standardized data sources across Europe. We utilize the Integrated Multi-satellitE Retrievals for GPM (IMERG) final product V07 from NASA and JAXA’s Global Precipitation Measurement (GPM) mission. The IMERG data are provided in a uniform grid spacing of 0.1° (around 11 km) every 30 minutes covering the globe between 60°N and 60°S. The IMERG data with a good quality flag and including liquid and mixed (sleet) precipitation are selected, thus excluding solid precipitation (snow and hail). The New European Wind Atlas (NEWA) is provided in a uniform grid spacing of 3 km every 30 minutes, covering Europe. The NEWA wind speed data at 50 m and 100 m are selected and extrapolated to 90 m, the hub height of the NREL 5 MW wind turbine. Using the tip speed curve of the turbine and the wind speed, the impact speed of droplets to the blades are calculated. The rain rates from IMERG are converted to droplet size and fall velocity using the Best formulation. The impingement model based on rain erosion test data is used and the damage calculations follow the Palmgren-Miner rule. The outputs are the accumulated damage and the blade lifetime at eight experimental sites in the EU AIRE project. Furthermore, combined rain and wind speed variations and the inter-annual and seasonal variations are evaluated based on the recent 11 years of concurrent data from 2014 to 2024.
No recording available for this poster.
