More Rotors Equal More Power
FULLERTON, Calif., Aug. 4 /PRNewswire/ -- California-Energy-Commission
(CEC)-sponsored Selsam Innovations of Fullerton (http://www.selsam.com), California,
announced today that its unique design of using several rotors on a common
drive shaft to capture wind energy provides five times the energy output of a
conventional, single-rotor turbine of the same diameter.
The concept, also referred to as "co-axial, multi-rotor wind turbine" and
pioneered by Selsam principal, Doug Selsam, combines the lightweight blades
and high revolutions per minute (RPM) of a small turbine with the increased
swept area and greater power output of a larger turbine. A single drive shaft
tilted at a 25-degree angle exposes each rotor to its own airflow. The high
RPM allows a direct-drive generator, eliminating the need for gearing between
the shaft and the generator and reducing installation and operation costs.
"We have reduced the array-turbine concept with its known power-gathering
advantages, to a single moving part," said Selsam. "The result is greater
energy capture per installation dollar spent."
In tests funded by the CEC, Selsam's patented, experimental prototype
"Superturbine" produced 4,000 watts of electricity at winds of 27 mph.
"Compared to a single-rotor turbine of the same diameter which nominally
produces 800 watts, output has been multiplied by five times," said Selsam.
Selsam Innovations has been named one of the 50 most innovative companies
of 2004 by the Los Angeles Regional Technology Alliance.
SOURCE Selsam Innovations
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Related links:
http://www.selsam.com
CONTACT:
Doug Selsam of Selsam Innovations,
+1-714-992-5594
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