Technical Brief

Design and Testing of a New Small Wind Turbine Blade

[+] Author and Article Information
Qiyue Song

School of Engineering,
University of Guelph,
Guelph, ON N1G 2W1, Canada
e-mail: qsong@uoguelph.ca

William David Lubitz

Associate Professor
School of Engineering,
University of Guelph,
Guelph, ON N1G 2W1, Canada
e-mail: wlubitz@uoguelph.ca

1Corresponding author.

Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING. Manuscript received August 22, 2012; final manuscript received January 3, 2014; published online January 31, 2014. Assoc. Editor: Yves Gagnon.

J. Sol. Energy Eng 136(3), 034502 (Jan 31, 2014) (4 pages) Paper No: SOL-12-1206; doi: 10.1115/1.4026464 History: Received August 22, 2012; Revised January 03, 2014

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.

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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.
Burton, T., Sharp, D., Jenkins, N., and Bossanyi, E., 2001, Wind Energy Handbook, John Wiley & Sons Ltd., Toronto.
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. [CrossRef]
Glauert, H., 1926, The Elements of Airfoil and Airscrew Theory, Cambridge University Press, Cambridge, UK.
Hansen, M. O. L., 2008, Aerodynamics of Wind Turbines, 2nd ed., Earthscan, London.
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.
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. [CrossRef]
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.
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.
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. [CrossRef]
Bergey Windpower, 2011, “Bergey Excel 1,” http://www.bergey.com/pages/bergey_xl1.html, accessed March 3, 2011.
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.
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.
Nichita, C., Mokadem, M. E., and Dakyo, B., 2006, “Wind Turbine Simulation Procedures,” Wind Eng., 30(3), pp. 187–200. [CrossRef]
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. [CrossRef]
Wood, D. H., 2004, “Dual Purpose Design of Small Wind Turbine Blades,” Wind Eng., 28(5), pp. 511–528. [CrossRef]
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.
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. [CrossRef]
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. [CrossRef]
Song, Q., 2012, “Design, Fabrication, and Testing of a New Small Wind Turbine Blade,” Masters' thesis, University of Guelph, Guelph, ON, Canada.
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. [CrossRef]
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. [CrossRef]
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.
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. [CrossRef]
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.
Scibor-Rylski, A. J., 1975, Road Vehicle Aerodynamics, Pentech Press Ltd., London, UK.
Lubitz, W. D., 2014, “Impact of Ambient Turbulence on Performance of a Small Wind Turbine,” Renewable Energy, 61, pp. 69–73. [CrossRef]
BWC EXCEL 1 24 VDC Battery Charging System Owners Manual, 2012, Bergey Windpower Co., Norman, OK, Version 2.3.
Refan, M., and Hangan, H., 2012, “Aerodynamic Performance of a Small Horizontal Axis Wind Turbine,” ASME J. Sol. Energy Eng., 134(2), p. 021013. [CrossRef]
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. [CrossRef]


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Fig. 1

Blade airfoil profile, velocities and forces

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Fig. 2

Extended airfoil characteristics of SD 7062 and Bergey airfoil

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Fig. 3

Geometry of new blade at each element

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Fig. 4

BEM predictions of power coefficient for the new blades at different overall pitch angles, compared to the original Bergey blades

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Fig. 6

Power curve simulation of the Bergey (a), the new blades at +5 deg pitch angle (b), and at +9 deg pitch angle (c)

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Fig. 5

Measured power curves of the three rotors




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