Content Inside :
Overview of Design Approach, Signs and Conventions, Aerodynamic Design Criteria, Aerodynamic Design Methodology, Structural Design Considerations, NREL Airfoil Families, Eppler Calculations of Airfoil Properties, Performing Rotor Design Studies with PROPID, Design Process for Near-Optimal Variable-Speed Performance, Example Rotor Design, As a part of its Advanced Research Program, the National Renewable Energy Laboratory (NREL) installed two new Advanced Research Turbines (ART). The ART turbines are being used by NREL as full-scale test beds for ongoing research efforts, including three-dimensional blade aerodynamics and the effects of various control methods on turbine loads and performance. The purpose of this report is to summarize the aerodynamic design work performed for the ART-2B rotor and to formally document both the process used and the results obtained.The ART-2B turbine is intended to support the ongoing research efforts of NREL’s Advanced Research Program. The ART-2B blade design is, therefore, not intended to be commercially competitive but rather to reflect state-of-the-art aerodynamic performance. As such, the aerodynamic design objectives were given first priority in this process, and structural design aspects were considered secondary. For each airfoil design considered, a near-optimal blade geometry was determined, with calculated annual energy production (AEP) used as the primary figure of merit. Structural efficiency (strength, cost, and weight) were addressed qualitatively through consideration of the resulting blade dimensions.
Tags : renewable energy laboratory, rotor design, national renewable energy laboratory, rotor blades, blade design, national renewable energy, performance example, test beds, design methodology, airfoil design, aerodynamic design, aerodynamic performance, figure of merit, design objectives, design aspects
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