Energy and Climate

SWIFT

The Influence of Rotor Blade Design on Wake Development

The National Rotor Testbed (NRT) includes research to quantify the degree to which the blade design load distribution influences the rotor near- and mid-wake velocity deficits and fluid structures. Wind-plant performance and the effects of turbine–turbine interaction have been identified as the primary research topics for the NRT blades. The wake deficit and fluid structures […]

Wake-Imaging System Progresses to Outdoor Scaled Test

The wind-turbine wake-imaging system being developed at Sandia, a novel system capable of measuring the velocity of 3D coherent wake structures (e.g., tip vortices) over relevant time scales, will be deployed at an outdoor scaled facility as a final risk-reduction experiment. The data collected will improve the physical understanding and modeling of wind-turbine wake impacts on […]

National Rotor Testbed Functional Scaling Presented at American Institute of Aeronautics and Astronautics 2014 Scitech

David Maniaci (in Sandia’s Wind Energy Technologies Dept.) traveled to National Harbor, Maryland, in January to present a paper at the American Institute of Aeronautics and Astronautics (AIAA) SciTech/American Society of Mechanical Engineers Wind Energy Symposium titled, “Definition of the National Rotor Testbed: An Aeroelastically Relevant Research-Scale Wind Turbine Rotor.” Approximately 60 researchers from various institutions […]

Scaled Wind Farm Technology Facility Baselining Project Accelerates Work

With the Scaled Wind Farm Technology (SWiFT) facility’s basic operation and data collection now operational, the SWiFT Baselining Team met at Sandia on February 20th to kick-off the SWiFT Facility Baselining Project’s major work phase. The project’s goal is to achieve complete operational readiness and verification of all SWiFT controller, data acquisition, and instrumentation systems for future […]

Increasing the Scaled Wind Farm Technology Facility’s Power Production

During the period of February 24–March 7, Scaled Wind Farm Technology (SWiFT) facility turbines were operational—producing power and collecting data for the longest period to date. On March 5, both turbines produced rated power of 200 kW without any issue. A snapshot of 184 kW is shown in the figure. To date, the turbines have been running with supervised operation […]

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