Environmental Engineering Reference
In-Depth Information
FIGURE 6.25
Rotor axis offset from horizontal pivot point for control.
was downwind and the tail with flat plate and fins hung down (moderate winds to 13 m/s). In high
winds the force of the wind on the rotor and also on the flat part of the tail moved the tail and rotor,
alternator to the horizontal position, and vertical furling (Figure 6.25). There is no hinge on the tail
and the restoring force is gravity.
Small wind turbines are mostly mounted on pole and lattice towers. Very small wind turbines are
mounted on almost anything, even on buildings, and of course on sailboats they are mounted on a
short pole. A short pole is sometimes referred to as a stub mast.
REFERENCES
1.
I. A. Abbott and A. E. Von Dolnhoff. 1959.
Theory of wing sections, including a summary of airfoil
data
. Dover.
2.
S. J. Miley. 1982.
A catalog of low Reynolds number airfoil data for wind turbine applications
. RFP-
3387, Department of Aerospace Engineering, Texas A&M University.
3.
R. E. Wilson, P. B. S. Lissaman, and S. N. Walker. 1976.
Aerodynamic performance of wind turbines
.
ERDA/NSF/04014-76-1, UC-60. Available from NTIS.
4.
D. M. Eggleston and F. S. Stoddard. 1987.
Wind turbine engineering design
. New York: Van Nostrand
Reinhold.
5.
D. Le Gouriérès. 1982.
Wind power plants, theory and design
. Oxford, UK: Pergamon Press.
6.
L. L. Freris, ed. 1990.
Wind energy conversion systems
. Englewood Cliffs, NJ: Prentice Hall.
7.
D. A. Spera, ed. 1994.
Wind turbine technology
. New York: ASME Press.
8.
Wind energy conversion. C00-4131-Ti. Available from NTIS. Nine separate reports:
“Methods for Design Analysis of Horizontal Axis Wind Turbines”
“Aerodynamics of Horizontal Axis Wind Turbines”
“Dynamics of Horizontal Axis Wind Turbines”
“Drive System Dynamics”
“Experimental Investigation of a Horizontal Axis Wind Turbine”
“Nonlinear Response of Wind Turbine Rotor”
“Effects of Tower Motion of the Dynamic Response of Windmill Rotor”
“Free Wake Analysis of Wind Turbine Aerodynamics”
“Aerodynamics of Wind Turbine with Tower Disturbances”
9.
E. H. Lysen. 1983.
Introduction to wind energy
. The Netherlands: Consultancy Services Wind Energy
Developing Countries. Amersfoort, Holland.
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