Vertical axis wind turbine and blade therefor
AssigneeKing Fahd University of Petroleum and Minerals
InventorsZakria Ghazanfar Toor, Haitham M. Bahaidarah
Life of this patent
Estimating the term…
Abstract
A vertical axis wind turbine blade that includes an elongated wing and at least one airflow blocker in the elongated wing. The elongated wing has a first surface and a second surface which meet at a leading edge and a trailing edge, where the leading edge includes a convex curve. The elongated wing also includes a leading edge slat between the first surface and the second surface; and at least one hollow channel extending from the leading edge slat to the first surface. The hollow channel is curved, and the airflow blocker is configured to block the hollow channel.
Claims19
A vertical axis wind turbine blade, comprising:
- an elongated wing having a first surface and a second surface, the first surface and the second surface meeting at a leading edge and a trailing edge, wherein the leading edge comprises a convex curve;
- and
- at least one airflow blocker in the elongated wing,
- wherein the elongated wing comprises:
- a leading edge slat formed by the leading edge, the first surface, and the second surface and delimited by a leading edge channel, the leading edge slat being contained within a first side wall of the elongated wing and a second side wall of the elongated wing and being wider at the first surface than at the second surface;
- and
- at least one hollow channel extending from the leading edge channel at a midpoint of the leading edge slat to the first surface,
- wherein the at least one hollow channel is curved, and
- wherein the at least one airflow blocker includes at least one channel, wherein the at least one airflow blocker includes a plurality of angled filter layers, and
- wherein the at least one airflow blocker is configured to obstruct airflow through the at least one hollow channel.
A vertical axis wind turbine, comprising:
- a central rotating shaft;
- at least one blade having a first surface and a second surface, the first surface and the second surface meeting at a leading edge and a trailing edge, wherein the leading edge comprises a convex curve;
- and
- at least one airflow blocker in the at least one blade,
- wherein the at least one blade comprises:
- a leading edge slat, formed by the leading edge, the first surface, and the second surface and delimited by a leading edge channel the leading edge slat being contained within a first side wall of the elongated wing and a second side wall of the elongated wing and being wider at the first surface than at the second surface;
- and
- at least one hollow channel extending from the leading edge channel at a midpoint of the leading edge slat to the first surface,
- wherein the at least one hollow channel is curved, and
- wherein the at least one airflow blocker includes at least one channel, wherein the at least one airflow blocker includes a plurality of angled filter layers, and
- wherein the at least one airflow blocker is configured to obstruct airflow through the at least one hollow channel, and
- wherein the leading edge and the trailing edge are oriented parallel to a vertical axis of the central rotating shaft.
Dependencies are inferred from the claim text.