energy to maintain rotational speed

How Does a Wind Turbine Work? - Welcome to Horizon Wind Energy
A step-up gearbox works to increase the rotational speed of a wind turbine's . up a hill, for example), you need to pedal faster to maintain your same speed.
http://www.horizonwind.com/about/ftkc/howdoeswindturbinework.aspx

  1. Types

    • Rotational Mass and Energy Required
      Rotational Mass and Energy Required General Physics discussion. . So, from a stop or from a lower rotating speed to a higher rotating speed (or higher to . of inertia will indeed make no difference in maintaining speed (ignoring friction).
      http://www.physicsforums.com/showthread.php?p=3766092

      Flywheel - Wikipedia, the free encyclopedia
      The amount of energy stored in a flywheel is proportional to the square of its . For example, a flywheel is used to maintain constant angular velocity of the .
      http://en.wikipedia.org/wiki/Flywheel

    Causes

    • Rotation around a fixed axis - Wikipedia, the free encyclopedia
      The expressions for the kinetic energy of the object, and for the forces on the parts of the . 2.1 Angular Displacement; 2.2 Angular speed and angular velocity . To maintain rotation around a fixed axis, the total torque vector has to be along .
      http://en.wikipedia.org/wiki/Rotation_around_a_fixed_axis

      Flywheel energy storage - Wikipedia, the free encyclopedia
      Flywheel energy storage (FES) works by accelerating a rotor (flywheel) to a very high speed and maintaining the energy in the system as rotational energy.
      http://en.wikipedia.org/wiki/Flywheel_energy_storage

    The Role of Heredity in Color Blindness Disorder

    • 03. Power, Energy & Gravity
      A static force without velocity does not require power to maintain itself, and velocity (including rotational velocity) without force also does not require power.
      http://www.arachnoid.com/gravitation_equations/power_energy_gravity.html

      Wave Effect Discovery May Lead to Improved Fusion Machines ...
      radial electric field must be maintained. Normally . particle energy is absent, but the very high rotation speeds that might be obtained without electrodes will .
      http://www.apsdpp.org/meetings/press/Fetterman.Princeton.pdf

    Diagnosis

    • Welcome to Science27.com
      In this case the orbiting object will slowly lose Kinetic Energy (KE) and . On the other hand, when the angular speed of a orbiting objects (for example . the planet further away or maintain the rotation of the star (against relativistic resistance) .
      http://www.science27.com/english/the_space_wind.html

      Flywheels
      Jul 29, 2011 . Flywheels are generally heavy discs rotating at speed. . power systems and for maintaining power quality in renewable energy systems.
      http://www.roymech.co.uk/Useful_Tables/Cams_Springs/Flywheels.html

    Considerations

    • Variable-Speed Wind Turbine Controller Systematic Design ...
      NREL is a U.S. Department of Energy Laboratory. Operated by Midwest . The combination of maintaining a constant rotational speed and minimizing actuator .
      http://www.nrel.gov/docs/fy99osti/25540.pdf

      Reinventing the flywheel | Machine Design
      Aug 11, 2011 . Next-generation flywheels will be capable of megawatt-level energy storage. . high speeds and maintaining the kinetic energy in the system as rotational energy. . While rotational speed has dropped, more than doubling the .
      http://machinedesign.com/article/reinventing-the-flywheel-0811

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