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Increasing the Power Output of a Turbine

  1. Apr 4, 2017 #1
    I have a hydro turbine spinning at 62.746RPM and it produces 170.195Nm of torque.
    It generates 1.1183kW but ideally, I would like to step it up to at least 4.5kW.
    Is this possible using a gearbox and if so how can it be done?
  2. jcsd
  3. Apr 4, 2017 #2


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    Welcome to PF.
    First you must identify the factors that limit power now.
    Power is torque * RPM. A gearbox changes the ratio of torque to RPM, but it will probably not change the power output.
    To get 4 times the power you need to increase the flow or the height by a factor of 4, or the water speed by a factor of 2.
    You might also consider 4 separate systems.
  4. Apr 7, 2017 #3


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    You can't do it with just a gearbox as that would violate conservation of energy. Gearboxes can never be more than 100% efficient, they always have losses.
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