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Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,.,*,Design and Manufacturing of a Micro Wind Turbine Blade of Biocomposites,.,Purposes,Micro wind turbine blade design,Manufacturing exploration,Biomaterial,Embedded casting,.,Outline,Micro wind turbine blade design and prototype manufacturing,Materials for small wind turbine blade,Manufacturing,of small wind turbine blades,Conceptual design for small blade structure with biomaterial and manufacturing,Micro blade mould design and manufacturing,Micro blade manufacturing with casting mould,Discussions,Conclusions,.,Micro wind turbine blade design and prototype manufacturing,Blade element momentum method(BEM),Profile for BEM,(,Burton,et al.,Wind Energy Handbook,2001,),.,Micro wind turbine blade design and prototype manufacturing,Airfoil geometry and aerodynamics,Airfoil analysis(,Manwell et al.,Wind Energy Explained,2010,),.,Micro wind turbine blade design and prototype manufacturing,Promising airfoils,Airfoils geometry and thickness,.,Micro wind turbine blade design and prototype manufacturing,Lift and drag coefficients,Lift coefficient at Re=610,4,Ratio of,C,l,/C,d,at,Re,=610,4,.,Micro wind turbine blade design and prototype manufacturing,Structure and solid model,3D-Blade profiles with SD 7037 Solid model of rotor assembly,.,Micro wind turbine blade design and prototype manufacturing,Rapid prototype,Left:3-D model;Middle:rapid prototype;Right:rapid prototype after surface treatment,.,Materials for small wind turbine blade,Metal:Steel and aluminum,Glass and carbon fibre composites,Glass fibre:cheap and good properties,Carbon fibre:Expensive and high properties,Both petro-based and not environmental friendly,Wood and bamboo,Biocomposites,Natural fibres enforced,Flax,jute,hemp,sisal:Nottingham Innovative Manufacturing Research Centre(NIMRC),Hemp:Ris,national Laboratory,Denmark,Bio-resin,Epoxidized,soybean oil(ESO)resin and PLA resin:Denmark,ESO and a natural resin from,Venonia,in Ethiopia (NIMRC).,ESO in our,lab(Dr,.,Deka,),.,Manufacturing,of small wind turbine blades,Mechanical fabricating:CNC for wood,Hand-lay-up:glass fibre,carbon fibre and wood epoxy,Filament winding:petro-based fibre,Pultrusion of fiberglass:Bergey,Injection:Southwest Windpower,Resin Transfer Moulding(RTM):Popular,Resin infusion technology,.,Conceptual design for small blade structure with biomaterial and manufacturing,Profile structure for small blade,Biocomposite design for small wind turbine blade,.,Conceptual design for small blade structure with biomaterial and manufacturing,Profile for mircro wind turbine blade,.,Blade mould design and manufacturing,Three part mould,Tools and preparation,.,Blade mould design and manufacturing,Three part mould,Lower mould Three part mould after sealing,.,Blade mould design and manufacturing,Two part mould,processing,Preparation Lower mould Upper mould in processing,.,Blade mould design and manufacturing,Final two part mould,.,Blade manufacturing,Blade in mould,.,Blade manufacturing,Blade before deburring,.,Blade manufacturing,Moulded blade(left)and the prototype blade used to produce the mould(right),.,Discussions,Plaster for mould,Broken moulds,.,Discussions,Bio-resin is thin,Vacuum or pressure casting will work better,Plaster is not good enough for working more blades,but good for one blade with one mould,More biocomposites need to be further studied,.,Conclusions,A micro wind turbine blade was designed,A micro blade built in liquid casting mould,Embedded casting works well with biomaterial inside,Casting mould is good for complex geometry and thin airfoil,.,Questions?,.,
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