| 摘要 |
<p>The invention relates to a turbine (30) for hydroelectric plants (25) on water courses with very low drops of less than 10 metres and preferably of 1 to 5 metres, comprising a wheel (34) in the form of a screw, the ratio between kinetic energy of the water flow at the outlet from the wheel and the potential energy of the drop being less than 20 %.</p> |
