A small wind turbine blade was designed using blade element momentum (BEM) method for a three bladed, fixed pitch 1 kW horizontal axis wind turbine. The new blades were fabricated, fit to a Bergey XL 1.0 turbine, and tested using a vehicle-based platform at the original designed pitch angle, plus with 5 deg and 9 deg of additional pitch. The new blades had better aerodynamic performance than the original Bergey XL 1.0 blades at high speed, but in some cases at lower speeds the original blades performed better. The results demonstrated that selecting the blade pitch angle on a rotor is a tradeoff between starting performance and power output in high winds. The BEM simulations were evaluated against the test data and demonstrated that the BEM simulations predicted the rotor performance with reasonable accuracy.

References

References
1.
Manwell
,
J. F.
,
McGowan
,
J. G.
, and
Rogers
,
A. L.
,
2002
,
Wind Energy Explained: Theory, Design and Application
,
John Wiley & Sons, Ltd.
,
West Sussex, UK
.
2.
Burton
,
T.
,
Sharp
,
D.
,
Jenkins
,
N.
, and
Bossanyi
,
E.
,
2001
,
Wind Energy Handbook
,
John Wiley & Sons Ltd.
,
Toronto
.
3.
Dai
,
J. C.
,
Hu
,
Y. P.
,
Liu
,
D. S.
, and
Long
,
X.
,
2011
, “
Aerodynamic Loads Calculation and Analysis for Large Scale Wind Turbine Based on Combing BEM Modified Theory With Dynamic Stall Model
,”
Renewable Energy
,
36
(3), pp.
1095
1104
.10.1016/j.renene.2010.08.024
4.
Glauert
,
H.
,
1926
,
The Elements of Airfoil and Airscrew Theory
,
Cambridge University Press
,
Cambridge
, UK.
5.
Hansen
,
M. O. L.
,
2008
,
Aerodynamics of Wind Turbines
,
2nd ed.
,
Earthscan
,
London
.
6.
Buhl
,
M. L.
,
2005
, “
A New Empirical Relationship Between Thrust Coefficient and Induction Factor for the Turbulent Windmill State
,” National Renewable Energy Laboratory, Golden, CO, Technical Report NREL/TP-500-36834.
7.
Wright
,
A. K.
, and
Wood
,
D. H.
,
2004
, “
The Starting and Low Wind Speed Behaviour of a Small Horizontal Axis Wind Turbine
,”
J. Wind Eng. Ind. Aerodyn.
,
92
(14–15), pp.
1265
1279
.10.1016/j.jweia.2004.08.003
8.
Viterna
,
L. A.
, and
Corrigan
,
R. D.
,
1981
, “
Fixed Pitch Rotor Performance of Large Horizontal Axis Wind Turbines
,” DOE/NASA Workshop on Large Horizontal Axis Wind Turbines, Cleveland, OH, July 29–30.
9.
Tangler
,
J. L.
, and
Kocurek
,
J. D.
,
2004
, “
Wind Turbine Post-Stall Airfoil Performance Characteristics Guidelines for Blade Element Momentum Methods
,” National Renewable Energy Laboratory, Golden, CO, Technical Report NREL/CP-500-36900.
10.
Martinez
,
J.
,
Bernabini
,
L.
,
Probst
,
O.
, and
Rodriguez
,
C.
,
2005
, “
An Improved BEM Model for the Power Curve Prediction of Stall-Regulated Wind Turbines
,”
Wind Energy
,
8
(4), pp.
385
402
.10.1002/we.147
11.
Bergey Windpower, 2011, “Bergey Excel 1,” http://www.bergey.com/pages/bergey_xl1.html, accessed March 3, 2011.
12.
Sharma
,
R. N.
, and
Madawala
,
U.
,
2007
, “
The Concept of a Smart Wind Turbine System
,”
16th Australasian Fluid Mechanics Conference
,
Gold Coast, Australia
, December 3–7.
13.
Humiston
,
C.
, and
Visser
,
K. D.
,
2003
, “
Full Scale Aerodynamic Effects of Solidity and Blade Number on Small Horizontal Axis Wind Turbines
,”
World Wind Energy Conference (WWEC2003), Cape Town, South Africa
, November 23–26.
14.
Nichita
,
C.
,
Mokadem
,
M. E.
, and
Dakyo
,
B.
,
2006
, “
Wind Turbine Simulation Procedures
,”
Wind Eng.
,
30
(3), pp.
187
200
.10.1260/030952406778606223
15.
Martinez
,
J.
,
Morales
,
A.
,
Probst
,
O.
,
Llamas
,
A.
, and
Rodriguez
,
C.
,
2006
, “
Analysis and Simulation of a Wind-Electric Battery Charging System
,”
Int. J. Energy Res.
,
30
(8), pp.
633
646
.10.1002/er.1175
16.
Wood
,
D. H.
,
2004
, “
Dual Purpose Design of Small Wind Turbine Blades
,”
Wind Eng.
,
28
(5), pp.
511
528
.10.1260/0309524043028037
17.
UIUC Applied Aerodynamics Group,
2011
, “Summary of Low-Speed Airfoil Data, Vol. 3,” University of Illinois at Urbana-Champaign, Urbana-Champaign, IL, http://www.ae.illinois.edu/m-selig/pd.html, accessed February 27, 2011.
18.
Ziter
,
B.
, and
Lubitz
,
W. D.
,
2010
, “
Predicting Hub-Height Wind Speed for Small Wind Turbine Performance Evaluation Using Tower-Mounted Cup Anemometers
,”
Wind Eng.
,
34
(6), pp.
673
699
.10.1260/0309-524X.34.6.673
19.
Duquette
,
M. M.
, and
Visser
,
K. D.
,
2003
, “
Numerical Implication of Solidity and Blade Number on Rotor Performance of Horizontal-Axis Wind Turbines
,”
ASME J. Sol. Energy Eng.
,
125
(4), pp.
425
432
.10.1115/1.1629751
20.
Song
,
Q.
,
2012
, “
Design, Fabrication, and Testing of a New Small Wind Turbine Blade
,” Masters' thesis, University of Guelph, Guelph, ON, Canada.
21.
Matsumiya
,
H.
,
Ito
,
R.
,
Kawakami
,
M.
,
Matsushita
,
D.
,
Lida
,
M.
, and
Arakawa
,
C.
,
2010
, “
Field Operation and Track Tests of 1-kw Small Wind Turbine Under High Wind Conditions
,”
ASME J. Sol. Energy Eng.
,
132
(1), p.
011002
.10.1115/1.4000330
22.
Grassmann
,
H.
,
Bet
,
F.
,
Cabras
,
G.
,
Ceschia
,
M.
,
Cobai
,
D.
, and
DelPapa
,
C.
,
2003
, “
A Partially Static Turbine—First Experimental Results
,”
Renewable Energy
,
28
(11), pp.
1779
1785
.10.1016/S0960-1481(03)00061-2
23.
Larwood
,
S.
,
Sencenbaugh
,
J.
, and
Acker
,
B.
,
2001
, “Controlled Velocity Testing of an 8-kw Wind Turbine, National Renewable Energy Laboratory, Golden, CO, Technical Report NREL/CP-500-30299.
24.
Elizondo
,
J.
,
Martinez
,
J.
, and
Probst
,
O.
,
2009
, “
Experimental Study of a Small Wind Turbine for Low- and Medium-Wind Regimes
,”
Int. J. Energy Res.
,
33
(3), pp.
309
326
.10.1002/er.1482
25.
Roberts
,
J.
,
2009
, “
Micro Wind Energy Systems in Harsh Environments: Failure Analysis of Small Wind Turbines at Remote Sites in Labrador
,” Master's thesis, Memorial University, St. John's, NL, Canada.
26.
Scibor-Rylski
,
A. J.
,
1975
,
Road Vehicle Aerodynamics
,
Pentech Press Ltd.
,
London, UK
.
27.
Lubitz
,
W. D.
,
2014
, “
Impact of Ambient Turbulence on Performance of a Small Wind Turbine
,”
Renewable Energy
,
61
, pp.
69
73
.10.1016/j.renene.2012.08.015
28.
BWC EXCEL 1 24 VDC Battery Charging System Owners Manual
, 2012, Bergey Windpower Co., Norman, OK, Version 2.3.
29.
Refan
,
M.
, and
Hangan
,
H.
,
2012
, “
Aerodynamic Performance of a Small Horizontal Axis Wind Turbine
,”
ASME J. Sol. Energy Eng.
,
134
(2), p.
021013
.10.1115/1.4005751
30.
Lanzafame
,
R.
, and
Messina
,
M.
,
2007
, “
Fluid Dynamics Wind Turbine Design: Critical Analysis, Optimization and Application of BEM Theory
,”
Renewable Energy
,
32
(14), pp.
2291
2305
.10.1016/j.renene.2006.12.010
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