微型风轮机叶片设计与制造.ppt

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) Micro wind turbine blade design and prototype manufacturing Promising airfoils Micro wind turbine blade design and prototype manufacturing Lift and drag coefficients Micro wind turbine blade design and prototype manufacturing Structure and solid model Micro wind turbine blade design and prototype manufacturing Rapid prototype 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 Conc