torque of fan

zaveri

zaveri

@zaveri-5TD6Sk • Oct 22, 2024
what is the practical procedure to determine the torque of a fan at different speeds, and to hence draw its speed-torque curve.
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  • CE Designer

    CE Designer

    @ce-designer-BWq0yl • Apr 2, 2012

    Interesting question, do you have product specs? Can you check the power rating of the fan?
    0
  • zaveri

    zaveri

    @zaveri-5TD6Sk • Apr 3, 2012

    CE Designer
    Interesting question, do you have product specs? Can you check the power rating of the fan?
    i have nothing as such, this is just a general question.

    actually i came across a text book called "Design of machine components" by Michael Orthwein. this book also contains a section devoted to the selection of electric motors, for particular applications. it then showed an example of how a dc motor was selected for a fan by superimposing the speed-torque curve of a fan (driven machine) on the speed-torque curve of the motor. thus the points of intersection of the curves would give the starting torque required to start the fan.

    now what i really wanted to know was , how is the speed-torque of the fan drawn even prior to selecting its drive
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  • CE Designer

    CE Designer

    @ce-designer-BWq0yl • Apr 4, 2012

    It is derive from the power
    0