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    Betz' Law
    Experiments, Labs, Theses and Dissertations, Patents
    For Science Fair Projects, Labs, Lesson Plans and Research
    For High School and College Students and Teachers

    Betz' Law Experiments and Studies


      Betz' law demonstrates the maximum possible energy or efficiency that may be gained by an infinitely thin rotor (ideal conditions) when a fluid is flowing through the thin rotor. According to the Betz' law, the maximum efficiency of a rotor or windmill is of 59.3 %.

      Background Information

    • Betz' law - Wikipedia [View Resource]
    • What is the Betz Limit? (Demonstration) [View Resource]
    • Albert Betz: life and work [View Resource]
    • Guided Tour on Wind Energy [View Resource]
    • Experimenting Close to the Wind [View Resource]

      K-12 Experiments, Labs, Science Fair Projects

    • Compare the maximum power generated from various rotor configurations calculated using Betz's Law [View Experiment]
    • Guided Tour on Wind Energy [View Experiment]
    • Vertical Axis Wind Generators [View Experiment]
    • Which blades are best? [View Experiment]

      College Experiments, Labs, Studies and Articles

    • Development of a reciprocating aerofoil wind energy harvester [View Thesis]
    • Modeling of Building Integrated Wind Turbine Modules [View Experiment]
    • The Lanchester–Betz–Joukowsky Limit: on the contribution to rotor aerodynamics by the British, German and Russian scientific schools [View Experiment]
    • Limits of the Turbine Efficiency for Free Fluid Flow [View Experiment]
    • 3D modelling of a wind turbine using CFD [View Experiment]
    • Optimal rotor tip speed ratio [View Experiment]
    • Turbulence and turbulence generated structural loading in wind turbine clusters [View Experiment]
    • Effect of a diffuser on the power production of Ocean Current Turbines [View Experiment]
    • Experiments for the ecoCAD / InspirTech: Wind Turbine Blade Design and Performance Kit [View Experiment]

      Theses and Dissertations

    • Evaluation of aerodynamic criteria in the design of a small wind turbine with the lifting line model [View Thesis]
    • Wind Turbine optimized for VSC-DC transmission [View Thesis]


    • Lighter than air wind energy conversion system (US Patent 4350897, 1982) [View Patent]
    • Wind energy metering and recording systems (US Patent 4155252, 1979) [View Patent]
    • Windmill structures and systems (US Patent 6132181, 2000) [View Patent]

      See Also

    • Wind Turbine Design [View Experiment]

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    Last updated: June 2013
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