- #1
waterturbine
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Hi,
I am interested in building a water turbine.
I am not sure how to calculate the theoretical maximum power that can be derived from a flow.
If I assume I have a flow of 5m/s and a channel (or pipe) 1m^2
then I have a volume of 5,000 l/s
How do I calculate the energy that this flow could transfer to a turbine (excluding losses)?
Ek = 1/2 * m * v^2
water has density 1 so mass of 5,000 l is 5,000 kg
Ek = 0.5 * 5,000 * 5^2
= 2,500 * 25
= 62,500 J
Power = 62.5kW ?
(This doesn't seem correct and it is over 40 years since I did any physics)
So maybe I am missing that the change in flow from input of 5m/s will not be to 0?
Am I missing anything else and is there some other method to resolve this?
Or do I have to determine the Differential pressure across the turbine (I do not have any specs for a turbine yet).
thanks
I am interested in building a water turbine.
I am not sure how to calculate the theoretical maximum power that can be derived from a flow.
If I assume I have a flow of 5m/s and a channel (or pipe) 1m^2
then I have a volume of 5,000 l/s
How do I calculate the energy that this flow could transfer to a turbine (excluding losses)?
Ek = 1/2 * m * v^2
water has density 1 so mass of 5,000 l is 5,000 kg
Ek = 0.5 * 5,000 * 5^2
= 2,500 * 25
= 62,500 J
Power = 62.5kW ?
(This doesn't seem correct and it is over 40 years since I did any physics)
So maybe I am missing that the change in flow from input of 5m/s will not be to 0?
Am I missing anything else and is there some other method to resolve this?
Or do I have to determine the Differential pressure across the turbine (I do not have any specs for a turbine yet).
thanks