Patent ID: 11885302
Assignee: UNIVERSITY OF STRATHCLYDE
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  H  Y | IPC F  H

Claim 1:
2. The vertical axis turbine according to claim 1, wherein:
the first rotor in use at the wind speed below the rated wind speed has a tip speed ratio in the range from 4 to 5; and/or
the first and the at least one second rotor in use at the wind speed below the rated wind speed have a combined tip speed ratio of 15; and/or
the first rotor in use at the wind speed below the rated wind speed has an aerodynamic power coefficient (Cpmax) within 5% of its maximum; and/or
a maximum tip speed of blades of the at least one second rotor in use at the rated wind speed is in a range from 0.4 to 0.6 times the speed of sound;
and/or the rated wind speed is in a range from 11 m/s to 13.5 m/s in use.