Jet spoiler arrangement for wind turbine
Abstract
An air jet spoiler arrangement is provided for a Darrieus-type vertical axis wind-powered turbine. Air is drawn into hollow turbine blades through air inlets at the ends thereof and is ejected in the form of air jets through small holes or openings provided along the lengths of the blades. The air jets create flow separation at the surfaces of the turbine blades, thereby inducing stall conditions and reducing the output power. A feedback control unit senses the power output of the turbine and controls the amount of air drawn into the air inlets accordingly.
- Inventors:
-
- Corrales, NM
- Albuquerque, NM
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- OSTI Identifier:
- 865368
- Patent Number(s):
- 4504192
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F03 - MACHINES OR ENGINES FOR LIQUIDS F03D - WIND MOTORS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- AC04-76DP00789
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- jet; spoiler; arrangement; wind; turbine; air; provided; darrieus-type; vertical; axis; wind-powered; drawn; hollow; blades; inlets; ejected; form; jets; holes; openings; lengths; create; flow; separation; surfaces; inducing; stall; conditions; reducing; output; power; feedback; control; unit; senses; controls; amount; accordingly; air jets; vertical axis; wind turbine; power output; turbine blade; feedback control; air inlet; control unit; turbine blades; output power; air drawn; spoiler arrangement; flow separation; air jet; jet spoiler; /416/415/
Citation Formats
Cyrus, Jack D, Kadlec, Emil G, and Klimas, Paul C. Jet spoiler arrangement for wind turbine. United States: N. p., 1985.
Web.
Cyrus, Jack D, Kadlec, Emil G, & Klimas, Paul C. Jet spoiler arrangement for wind turbine. United States.
Cyrus, Jack D, Kadlec, Emil G, and Klimas, Paul C. Tue .
"Jet spoiler arrangement for wind turbine". United States. https://www.osti.gov/servlets/purl/865368.
@article{osti_865368,
title = {Jet spoiler arrangement for wind turbine},
author = {Cyrus, Jack D and Kadlec, Emil G and Klimas, Paul C},
abstractNote = {An air jet spoiler arrangement is provided for a Darrieus-type vertical axis wind-powered turbine. Air is drawn into hollow turbine blades through air inlets at the ends thereof and is ejected in the form of air jets through small holes or openings provided along the lengths of the blades. The air jets create flow separation at the surfaces of the turbine blades, thereby inducing stall conditions and reducing the output power. A feedback control unit senses the power output of the turbine and controls the amount of air drawn into the air inlets accordingly.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}