drag forces on stream hydro turbine
drag forces on stream hydro turbine
(OP)
The turbine dia. is 20m and the shroud dia. is 34m in a stream with a V of 3m/s. Using the shroud dia. the turbine at 40% hydraulic eff. produces 1,090,000 watts. P=FxV gives me 363,000 N of force or 40.5 ton of drag for the turbine and shroud. Add another 11 ton for the frictional forces (Ff)at the turbine for a total of 51 ton of drag caused by the turbine and shroud.
I didn't add any (Fd)for the shroud since it was used in calculating the additional wattage.
The 51 ton seems low to me.
Any ideas?
Thanks,
Tom Rooney
I didn't add any (Fd)for the shroud since it was used in calculating the additional wattage.
The 51 ton seems low to me.
Any ideas?
Thanks,
Tom Rooney




