UTRC 8-kW wind system: Phase II - fabrication and test. Executive summary

Technical Report · Wed Feb 04 04:00:00 EST 1981

DOI:https://doi.org/10.2172/6149882· OSTI ID:6149882

Taylor, R. B.; Cheney, M. C.

The final design that evolved from Phase I is a horizontal axis, two-bladed, down-wind free-yaw rotor with a diameter of 9.45 m (31 ft) and a steel tower with 16.8-m (55-ft) height that is supported by guy wires. Field testing of the prototype was completed in Phase II and successfully demonstrated the various features of the UTRC 8 kW wind turbine. Test evaluation is presently continuing at Rocky Flats, CO, and preliminary results indicate that the WTG is performing well in all aspects. The various features of the UTRC Bearingless Wind Turbine, which were conceived and wind tunnel tested during the earlier ERDA contracts and the first year of this program, were successfully demonstrated in full-scale during the field testing reported. The specific operating characteristics which were verified are: the passive self-starting feature, the proper blade pitch schedule to place the blade at its pitch setting for high performance, the automatic pitch increase to place the blade at its stall angle to limit rotor speed in the event of decoupling from the grid, and the passive yaw feature which provides for the continuous self-alignment to wind direction changes.

• Research Organization: United Technologies Research Center, East Hartford, CT (USA)
• DOE Contract Number: AC04-76DP03533
• OSTI ID: 6149882
• Report Number(s): RFP-3232/1; ON: DE82003883
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
170602* -- Wind Energy Engineering-- Turbine Design & Operation
DESIGN
MACHINERY
PERFORMANCE TESTING
POWER RANGE 1-10 KW
TESTING
TURBINES
TURBOMACHINERY
WIND TURBINES