Presentation for MSc Thesis

Oral Presentation of MSc Dissertation

Design and Development of a Vertical AxisMicro Wind Turbine

Prepared by : Murat IslamSupervisor : Dr S O Oyadiji

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Outline1. Introduction of the main problem2. Aim of current research3. Wind energy as a source4. Types of wind turbines5. Main components of VAWT6. Conclusions7. Q&A

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Introduction of the main problemNeed of alternative source of energyIncreasing demand in electricity consumptionHigh NOx and COy emissions

Unstable air flow directionsLow speed winds in urban areas

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Aim of current researchThe aim of this research is to investigate

the design and development of micro wind turbines for integration into; residential, commercial and industrial complexes.

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Wind energy as a sourceRenewableLow human footprintUsable in urban areasBetz limit on efficiency

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Distribution of yields for installation of a swift 1.5 kW turbine

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Impact of low wind speed events amongst area of UK

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Illustration of the main features of flow around a cubic building

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Preferred locations for different turbine mounting heights on a building

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Types of wind turbinesTip speed ratio;Low-speedHigh-speed

Axis of rotation;Vertical axisHorizontal axis

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Common rotor concepts with a vertical axis of rotation

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Vertical axis wind turbine with articulating rotor patent drawing

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Project Nova V shaped vertical axis wind turbine and a ship next to it

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Main components of VAWTBlades or rotorGenerator BearingsGearsShaft

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Rotors for the experimental use; Forward curved centrifugal TABLOCK Blower Wheel

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Rotors for the experimental use;

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Generators for the experimental use;

Bicycle dynamos

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Generators for the experimental use; Motorcycle alternators

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Generators for the experimental use; Axial flux permanent magnet (AFPM) generators

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Connection diagram of a three-phase, nine-coil winding of an AFPM brushless machine

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Bearings for the experimental use;Mounted radial bearings

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Gears for the experimental use;Planetary gears

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ConclusionsAn ARRAY of counter rotating horizontal axis

micro wind turbines can be built and a prototype can be tested.

Fan blades need to be optimized regarding to tip speed ratios

AFPM machines should be usedPlanetary gears needs to be placed for counter

rotation and increased angular speed of AFPMMounted bearings are suitable for simple fixingShafts needs to be robust designed

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References1. Small-scale wind energy, in Policy insights and practical guidance (CTC738), F.a.R.A. Department

for Environment, Editor. 2008, Carbon Trust and Met Office.2. Martin Best, A.B., Pete Clark, Dan Hollis, Doug Middleton, Gabriel Rooney, Dave Thomson and

Clive Wilson, Small-scale Wind Energy – Technical Report, in Urban Wind Energy Research Project Part 1 – A Review of Existing Knowledge. 2008.

3. Hau, E., Wind Turbines. 2nd ed. Fundamentals, Technologies, Application, Economics. 2006, Berlin: Springer.

4. Bruce E. Boatner, E.R.D., Eagle, ID (US) 83616, Vertical Axis Wind Turbine With Articulating Rotor. 2010: United States. p. 32.

5. Eti NOVA Project Statement. 2009 [cited 2010 20 April]; Available from: http://www.nova-project.co.uk/.

6. Forward curved centrifugal TABLOCK Blower Wheels. [cited 2010 20 April]; Available from: http://www.ht-blowers.com/Tablock%20Blower%20Wheels.pdf.

7. HB-NX70-QR. [cited 2010 20 April]; Available from: http://techdocs.shimano.com/techdocs/blevel.jsp.

8. SPARX Three Phase POWER Box. [cited 2010 20 April]; Available from: http://www.britishmotorcyclespares.com/Test_Results.htm.

9. Jacek F. Gieras, R.-J.W., Maarten J. Kamper, Axial Flux Permanent Magnet Brushless Machines. 2004: Kluwer Academic Publishers.

10. Corey, C.A., Epicyclic Gear Train Solution Techniques with Application to Tandem Bicycling, in Mechanical Engineering. 2003, Virginia Polytechnic Institute and State University: Blacksburg, VA.

11. Childs, P.R.N., Mechanical Design. 2nd ed. 2004, Oxford: Elsevier Ltd.

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Questions & Answers