Search results for "Leading edge erosion"

showing 3 items of 3 documents

Minimum Leading Edge Protection Application Length to Combat Rain-Induced Erosion of Wind Turbine Blades

2021

Leading edge erosion (LEE) repairs of wind turbine blades (WTBs) involve infield application of leading edge protection (LEP) solutions. The industry is currently aiming to use factory based LEP coatings that can applied to the WTBs before they are shipped out for installation. However, one of the main challenges related to these solutions is the choice of a minimum LEP application length to be applied in the spanwise direction of the WTBs. Generally, coating suppliers apply 10–20 m of LEP onto the blades starting from the tip of the blade using the “rule of thumb”, and no studies in the literature exist that stipulate how these LEP lengths can be calculated. In this study, we extend the sc…

Leading edgeControl and OptimizationTurbine blade020209 energyEnergy Engineering and Power Technology020101 civil engineeringcoatings02 engineering and technologylcsh:TechnologyTurbine0201 civil engineeringlaw.inventionWind turbine bladesCoatingslawleading edge erosionwind energy0202 electrical engineering electronic engineering information engineeringSensitivity (control systems)Electrical and Electronic EngineeringWind energyEngineering (miscellaneous)Parametric statisticsWind powerlcsh:TRenewable Energy Sustainability and the Environmentbusiness.industrywind turbine blades; leading edge erosion; wind energy; repair; coatingswind turbine bladesRule of thumbPower (physics)VDP::Teknologi: 500repairEnvironmental sciencebusinessRepairLeading edge erosionEnergy (miscellaneous)Marine engineeringEnergies
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Effects of Onshore and Offshore Environmental Parameters on the Leading Edge Erosion of Wind Turbine Blades: A Comparative Study

2021

Abstract The presence of rain-induced leading edge erosion of wind turbine blades (WTBs) necessitates the development of erosion models. One of the essential parameters for erosion modeling is the relative impact velocity between rain droplets and the rotating blade. Based on this parameter, the erosion damage rate of a WTB is calculated to estimate the expected leading edge lifetime. The environmental conditions that govern this parameter have site-specific variations, and thus, rain and wind loading on a turbine differ for onshore and offshore locations. In addition, there are wave loads present in the offshore environment. The present paper tries to provide guidelines for erosion modelin…

Leading edgeOcean energy technologyTurbine blade020209 energyOcean Engineering02 engineering and technology01 natural sciencesTurbine010305 fluids & plasmaslaw.inventionSea breezelaw0103 physical sciences0202 electrical engineering electronic engineering information engineeringGeotechnical engineeringDesign of offshore structuresWind powerbusiness.industryMechanical EngineeringOffshore material performance and applicationsTurbulence kinetic energyErosionEnvironmental scienceSubmarine pipelinebusinessLeading edge erosionJournal of Offshore Mechanics and Arctic Engineering
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Numerical investigation of rain droplet impact on offshore wind turbine blades under different rainfall conditions: A parametric study

2020

The leading edge of a fiber composite wind turbine blade (WTB) is prone to erosion damages due to repeated rain droplet impact during its service life. Such damages are critical to the blade's aerodynamic as well as structural performance, ultimately resulting in substantial repair costs. An effective design of a coating material for WTB is necessary and its analysis must include variables associated with erosive rain droplets such as (1) droplet diameter, (2) impact velocity, and (3) droplet impact angle. The present paper develops and validates a coupled fluid structure interaction (FSI) computational model for simulating rain droplet impact on WTBs, where the structure domain is modelled…

Leading edgeOffshore wind turbine bladeTurbine blade02 engineering and technologyAerodynamicsMechanics021001 nanoscience & nanotechnologySmooth particle hydrodynamics (SPH)Finite element methodlaw.inventionSmoothed-particle hydrodynamicsOffshore wind powerVDP::Teknologi: 500020303 mechanical engineering & transports0203 mechanical engineeringCoating materiallawFluid–structure interactionCeramics and CompositesErosionOperation and maintenanceEnvironmental science0210 nano-technologyCivil and Structural EngineeringLeading edge erosion
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