文档介绍：Energy Conversion & Management 41 (2000) 249±280
ate/enconman
Local design, testing and manufacturing of small mixed
airfoil wind turbine blades of glass ®ber reinforced plastics
Part I: Design of the blade and root
. Habali a,*, . Saleh b
aMechanical Engineering Department, Faculty of Engineering and Technology, University of Jordan, Amman, Jordan
bRenewable Energy Center, Royal Scienti®c Society, Amman, Jordan
Received 27 October 1998; accepted 16 May 1999
Abstract
Wind energy has attracted a great deal of attention in recent years in Jordan as one of the possible
alternative renewable energy resources. Almost of the local research and development activities in this
®eld were directed to explore, develop, and optimal utilization of energy systems. The time e to
establish a link between local scienti®c (academic) work and local industries to produce a usable
technology which will increase the local share in an inevitably emerging wind energy industry in Jordan.
To achieve this goal, a well founded manufacturing base is required. The most ponent of
a Wind Energy Converter is the rotor. The eciency of a rotor is characterized by its pro®le (airfoil
section) and the corresponding aerodynamic design. A selection procedure of airfoil section and the
aerodynamic design of the blade for a small wind turbine are discussed and implemented in this paper
(Part I). It is found that for small blades up to 5 m long, two dierent air foils mixed at the outer third
of the span will be sucient and demonstrated good strength and aerodynamic characteristics. As a
composite material, the Glass Fiber Reinforced Plastic was used in designing the rotor blade. This rotor
was then installed on 15 kW grid-connected-pitch-controlled machine. A static proof load test indicated
that this blade could withstand loads ten times the normal working thrust, and a ®eld performance test
showed that the rotor blade has a % measured average power coecient. #