How to calculate the speed of a cross flow water turbine?

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Discussion Overview

The discussion focuses on how to calculate the speed of a cross flow water turbine, particularly in the context of machine design. Participants explore the necessary parameters and formulas required for such calculations, touching on aspects of theoretical and practical application.

Discussion Character

  • Homework-related, Technical explanation, Debate/contested

Main Points Raised

  • One participant asks for guidance on calculating the speed of a cross flow water turbine, indicating a struggle with machine design.
  • Another participant emphasizes the need for additional information such as configuration, flow, head, and load to provide a meaningful answer.
  • There are repeated assertions that the question may be more suited for a homework forum, with calls for the original poster to show their attempt at a solution first.
  • Some participants suggest that a complete description of the parameters is necessary for the question to be answerable.
  • One participant mentions that in steady state, the sum of all torques is zero, implying a potential starting point for the calculations.

Areas of Agreement / Disagreement

Participants generally agree that more information is needed to answer the original question adequately. However, there is no consensus on how to proceed with the calculation or the appropriateness of the forum for such a question.

Contextual Notes

Limitations include the lack of specific parameters provided by the original poster and the need for a complete description of the situation to facilitate a proper response.

Ballena Joseph
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Thread moved from the technical forums, so no Homework Template is shown
How to calculate the speed of cross flow water turbine? Help, I'm struggling on our machine design.
 
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You would need a lot more information to do that . Configuration, flow, head, load...more

You need more help than an answer from an internet forum. Talk to your teacher.

Is this what you mean?

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anorlunda said:
You would need a lot more information to do that . Configuration, flow, head, load...more

You need more help than an answer from an internet forum. Talk to your teacher.

Is this what you mean?

View attachment 229672

Yes, that's what I mean.
 
What if I have all of the parameters to compute the speed of the cross flow turbine, what formula should I use?
 
Ballena Joseph said:
What if I have all of the parameters to compute the speed of the cross flow turbine, what formula should I use?

In the steady state, the sum of all torques is zero.

This sounds like homework and it should have been posted in the homework forum. We are not allowed to just spoon feed answers to students. You must show your attempt at a solution first.
 
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Ballena Joseph said:
What if I have all of the parameters to compute the speed of the cross flow turbine, what formula should I use?
This isn't a 1+1=2 question. You need to give a complete description of what you have and need in order for it to be answerable.
 
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