Jet spoiler arrangement for wind turbine

Patent · Tue Jan 01 00:00:00 EST 1985

OSTI ID:865368

Cyrus, Jack D ^[1]; Kadlec, Emil G ^[2]; Klimas, Paul C ^[2]

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1. Corrales, NM
2. Albuquerque, NM

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.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• DOE Contract Number: AC04-76DP00789
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4504192
• OSTI ID: 865368
• Country of Publication: United States
• Language: English

Related Subjects

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
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