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View article: Manufacturing, Characterization and Recycling of 9- and 13-m Recyclable Wind Blades Made with Recyclable Resins
Manufacturing, Characterization and Recycling of 9- and 13-m Recyclable Wind Blades Made with Recyclable Resins Open
Recyclability of wind blades has garnished a lot of attention over the past decade. This presentation focuses on two recyclable resins systems that are suitable to wind blade manufacturing. A comparison the their material performance, hand…
View article: Polymer Additive Manufacturing for Marine Renewable Energy Applications: Best Practices, Research Trends, and Current Challenges
Polymer Additive Manufacturing for Marine Renewable Energy Applications: Best Practices, Research Trends, and Current Challenges Open
Additive manufacturing (AM) is a rapidly growing technology space, not only for prototyping, but is also becoming more feasible at larger scales and increasing component quantities. There are a large variety of AM processes and materials a…
View article: Manufacture and testing of biomass-derivable thermosets for wind blade recycling
Manufacture and testing of biomass-derivable thermosets for wind blade recycling Open
Wind energy is helping to decarbonize the electrical grid, but wind blades are not recyclable, and current end-of-life management strategies are not sustainable. To address the material recyclability challenges in sustainable energy infras…
View article: Toolpath generation for automated wind turbine blade finishing operations
Toolpath generation for automated wind turbine blade finishing operations Open
Incorporating automation into wind turbine blade manufacturing is important for reducing costs to meet current offshore wind energy production goals in the United States. This work proposes a process for automating three operations in wind…
View article: Post-Deployment Characterization of Glass Fiber-Reinforced Thermoset and Thermoplastic Composite Tidal Turbine Blades: Preprint
Post-Deployment Characterization of Glass Fiber-Reinforced Thermoset and Thermoplastic Composite Tidal Turbine Blades: Preprint Open
In 2021, the National Renewable Energy Laboratory (NREL) supported Verdant Power with the most successful tidal energy deployment in U.S. history. Three of their tidal turbines were deployed as part of the Roosevelt Island Tidal Energy pro…
View article: Structural Characterization of Deployed Thermoplastic and Thermoset Composite Tidal Turbine Blades
Structural Characterization of Deployed Thermoplastic and Thermoset Composite Tidal Turbine Blades Open
The National Renewable Energy Laboratory worked with Verdant Power to manufacture, and characterize, novel thermoplastic composite blades on their Gen5d 5 m diameter turbines at the Roosevelt Island Tidal Energy (RITE) site in the East Riv…
View article: Additive Manufacturing for Powering the Blue Economy Applications: A Tidal Turbine Blade Case Study
Additive Manufacturing for Powering the Blue Economy Applications: A Tidal Turbine Blade Case Study Open
As the marine renewable energy industry continues to expand, innovation in the manufacturing space must grow accordingly to reduce costs and ensure the economic feasibility of new technologies. Additive manufacturing, more commonly known a…
View article: Design, Manufacture and Testing of an Open-Source Benchmark Composite Hydrokinetic Turbine Blade
Design, Manufacture and Testing of an Open-Source Benchmark Composite Hydrokinetic Turbine Blade Open
In a trend towards clean energy alternatives, recent years have seen great strides in the marine energy space. This has resulted in a pressing need for the design, development, and validation of novel energy harvesting technologies such as…
View article: Methods for thermal welding of wind turbine blades
Methods for thermal welding of wind turbine blades Open
Disclosed herein are methods, devices, and systems for manufacturing wind turbine blades which in some instances require using new blade joint designs. The blade joint designs described herein may allow for contact in places where welds wi…
View article: Toward the Instrumentation and Data Acquisition of a Tidal Turbine in Real Site Conditions
Toward the Instrumentation and Data Acquisition of a Tidal Turbine in Real Site Conditions Open
The National Renewable Energy Laboratory manufactured, instrumented, and deployed thermoplastic composite blades and a data acquisition system (NDAQ) on one of Verdant Power’s Gen5d 5 m diameter tidal turbines in New York’s East River. The…
View article: IACMI Project 4.10: Blade Finishing Automation (Final Report)
IACMI Project 4.10: Blade Finishing Automation (Final Report) Open
IACMI Project 4.10, the Innovative Wind Turbine Blade Finishing with Advanced Automated Technology project, performed research addressing the challenges and opportunities associated with automating wind turbine blade finishing operations, …
View article: Laboratory Wind Turbine Blade Static Testing of the Sandia National Rotor Testbed 13-Meter Wind Turbine Blade
Laboratory Wind Turbine Blade Static Testing of the Sandia National Rotor Testbed 13-Meter Wind Turbine Blade Open
The Sandia National Laboratories (SNL or Sandia) National Rotor Testbed (NRT) blade is a new design for experimental research and development at the Sandia Scaled Wind Farm Technology (SWiFT) facility, located at Texas Tech University’s Na…
View article: Sandia NRT Blade-0 Laboratory Modal Survey
Sandia NRT Blade-0 Laboratory Modal Survey Open
Modal testing was performed on the Sandia NRT Blade-0 in building A-60 at NREL/NWTC. Modal testing was intended to identify the fundamental frequencies of the blade. The blade was cantilevered to the A-60 test stand. Fundamental frequencie…
View article: Validation of a lightning protection system for a fusion-welded thermoplastic composite wind turbine blade tip
Validation of a lightning protection system for a fusion-welded thermoplastic composite wind turbine blade tip Open
Fusion welding for thermoplastic composite wind turbine blades is being investigated as a replacement for adhesives in bond lines to reduce manufacturing time and cost and to promote ease of recyclability. Resistance welding uses an electr…
View article: Validating Wind Turbine Blades at NREL’s Structural Test Laboratory
Validating Wind Turbine Blades at NREL’s Structural Test Laboratory Open
The Structural Test Laboratory at the National Renewable Energy Laboratory’s National Wind Technology Center verifies wind turbine blades in order to minimize repair and maintenance costs and improve the reliability of wind turbines in the…
View article: Leveraging the Advantages of Additive Manufacturing to Produce Advanced Hybrid Composite Structures for Marine Energy Systems
Leveraging the Advantages of Additive Manufacturing to Produce Advanced Hybrid Composite Structures for Marine Energy Systems Open
Many marine energy systems designers and developers are beginning to implement composite materials into the load-bearing structures of their devices, but traditional mold-making costs for composite prototyping are disproportionately high a…
View article: Manufacturing a 9-Meter Thermoplastic Composite Wind Turbine Blade: Preprint
Manufacturing a 9-Meter Thermoplastic Composite Wind Turbine Blade: Preprint Open
Currently, wind turbine blades are manufactured from a combination of glass and/or carbon fiber composite materials with a thermoset resin such as epoxy, which requires energy-intensive and expensive heating processes to cure. Newly develo…