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Title: 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:
 [1];  [2];  [2]
  1. (Corrales, NM)
  2. (Albuquerque, NM)
Publication Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA
OSTI Identifier:
865368
Patent Number(s):
US 4504192
Assignee:
United States of America as represented by United States (Washington, DC) SNL
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 = {Tue Jan 01 00:00:00 EST 1985},
month = {Tue Jan 01 00:00:00 EST 1985}
}

Patent:

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