×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

How to calculate the torque produced by a turbine

How to calculate the torque produced by a turbine

How to calculate the torque produced by a turbine

(OP)
Hello all,

How do you calculate the torque produced by a turbine? If we consider the turbine shown below:



Assume that this turbine is working underwater, with a fluid speed of 2m/s and that the turbine itself is 10mm thick. In order to calculate the speed, I work out the time taken for the water to flow from one side of the turbine to the other. In this case, the time would be 0.01/2 = 0.005s. Since each blade represents 0.1 revolutions, the rotary speed of the turbine would 0.1revs/0.005 = 20rps, which is 1200rpm. Is this correct?

How would I then calculate the torque produced by the turbine? I'm guessing that this involves knowing the pressure of the fluid, knowing area of the blades projected onto a plane and then working out the force produced and then multiplying by a distance from the rotation axis to produce a torque. However, although I think I have a vague idea of how to calculate it, I'm not sure about the details.

Any ideas?

Thanks,

--Amr

RE: How to calculate the torque produced by a turbine

Oh the old underwater turbine torque calculation.  If I had a dime.......

RE: How to calculate the torque produced by a turbine

T = Δ (M VT R)

to produce torque, there must be a change

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources