A Basic Design-Build-Test Experience: Model Wind Turbine Using Additive Manufacture

A Basic Design-Build-Test Experience: Model Wind Turbine Using Additive Manufacture

M. Widden, A. Rennie, S. Quayle, K. Gunn (2011).  A Basic Design-Build-Test Experience: Model Wind Turbine Using Additive Manufacture. 10.

This paper describes a project undertaken by most first-year Engineering undergraduates at Lancaster University in which they are set the task to design, build and test a scale-model wind turbine.

Working in pairs, the students are able to make design decisions on the blade geometry and the number of blades on the turbine. Utilising fused-deposition modelling (FDM) additive-manufacturing (AM) technology, students are able to produce their turbine blades by additive manufacture, which has provided an opportunity to greatly improve the accuracy and finish of the model aerofoils that students can produce, as well as ensuring geometric repeatability of blades on the same hub. It also allows students the capability to produce concave surfaces on the underside of their blades, which was almost impossible when producing the blades by hand methods.

The performance of the model turbines fabricated using the AM technique has been noticeably better than that of models produced by hand, the previous method. Introducing the AM method has also given an extra educational dimension to this design-build-test project.

In this project, students learn about aerofoils and simple aerodynamics and mechanics. The project introduces them to testing and measurement methods, as well as to the advantages and limitations of the particular AM technology used. For testing, the model turbine is mounted in a wind tunnel on a simple dynamometer, allowing different levels of torque to be applied and the speed of rotation to be measured, for a variety of air speeds. Students are encouraged to plot dimensionless performance curves of power coefficient against blade-tip-speed ratio. Using these figures, they can then predict the performance of a full-size rotor with similar geometry. 

Proceedings of the 7th International CDIO Conference, Technical University of Denmark, Copenhagen, June 20-23 2011

Authors (New): 
Martin Widden
Allan Rennie
Stephen Quayle
Kester Gunn
Pages: 
10
Affiliations: 
Lancaster University, United Kingdom
E-On New Build & Technology Centre, Ratcliffe-on-Soar, United Kingdom
Keywords: 
Aerofoil
airfoil
additive manufacture
wind turbine
Year: 
2011
Reference: 
French, M.J., “Nature and Rationale of the Undergraduate Course”, internal note, Department of Engineering, Lancaster University, 4 May 1972.: 
Crawley, E., Malmqvist, J., Östlund, S., and Brodeur, D., Rethinking Engineering Education, the CDIO Approach, Springer, New York, 2007: 
ISBN 978-0-387-38287-6
Hugo, R., and Goodhew, P, “The CDIO Approach to Engineering Education: 4. Designing and Integrating Design-Implement Experiences” (revised June 2010), CDIO Knowledge Library, Cambridge, MA; CDIO Worldwide Initiative. http://www.cdio.org; hugo@ucalgary.ca; goodhew@liv.ac.uk.: 
Stamper, R.E., and Dekker, D.L., “Utilizing rapid prototyping to enhance undergraduate engineering education”, 30th ASEE/IEEE Frontiers in Education Conference Paper F3C-1, Kansas City, MO, USA, October 18-21 2000.: 
Klaeger, U., and Hoffman, A., “Using intelligent prototypes to improve the aerodynamic design of race car aerofoil profiles”, Virtual and rapid manufacturing, Proc 3rd International Conference on Advanced Research in Virtual and Rapid Prototyping, Leiria, Portugal, 24-29 September 2007.: 
Quayle, S. D. and Rennie, A. E. W., “Integrating computational fluid dynamic and prototyping technologies in the investigation of multi-element profiles for a high-lift variable-pitch vertical-axis tidal power generator”, International Journal of Agile Systems and Management, Vol. 2 no 2, pp 222-236, 2007.: 
deWeck, O. L., Kim, I.Y., Graff, C., Nadir, W., and Bell, A., “Engineering design and rapid prototyping: a rewarding CAD/CAE/CAM and CDIO experience for undergraduates”, Proceedings of the 1 st Annual CDIO Conference, Kingston, Ontario, Canada, June 7-8, 2005.: 
Joyce, T., Evans, I., and Pallan, B., A Student-Led Design Course Related to Sustainable Engineering, Case Study, Higher Education Academy Engineering Subject Centre, available at www.engsc.ac.uk/downloads/scholarart/100119-joyce-case-study.pdf: 
Neves, B.C., and Guedes, P.B., “Spinning new engineering students‟ minds”, Proceedings of the 6 th International CDIO Conference, Ecole Polytechnique, Montreal, June 15-18, 2010: 
Widden, M., and Gunn, K., Design-build-test of model aerofoils for engineering education using FDM, Virtual and Physical Prototyping, vol 5 no 4, December 2010, pp 189-194: 
Walker, J.F., and Jenkins, N., Wind Energy Technology, John Wiley & Sons, Chichester, 1997: 
Jacobs, E.N., Ward, K.E. and Pinkerton, R.M., “The Characteristics of 78 Related Airfoil Sections from Tests in the Variable-Density Wind Tunnel”, National Advisory Committee for Aeronautics, USA, 1933: 
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