Publication Date:
2019-07-13
Description:
Towers for large horizontal axis wind turbines, machines with a rotor axis height above 30 meters and rated at more than 500 kW, have varied in configuration, materials of construction, type of construction, height, and stiffness. For example, the U.S. large HAWTs have utilized steel truss type towers and free-standing steel cylindrical towers. In Europe, the trend has been to use only free-standing and guyed cylindrical towers, but both steel and reinforced concrete have been used as materials of construction. These variations in materials of construction and type of construction reflect different engineering approaches to the design of cost effective towers for large HAWTs. Tower designs are the NASA/DOE Mod-5B presently being fabricated. Design goals and requirements that influence tower configuration, height and materials are discussed. In particular, experiences with United States large wind turbine towers are elucidated. Finally, current trends in tower designs for large HAWTs are highlighted.
Keywords:
ENERGY PRODUCTION AND CONVERSION
Type:
NASA-TM-87166
,
E-2803
,
DOE/NASA/20320-68
,
NAS 1.15:87166
,
Energy-Source Technology Conference and Exhibition; Feb 23, 1986 - Feb 27, 1986; New Orleans, LA; United States
Format:
application/pdf
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