Darrieus Turbine - 2m combined

Darrieus Turbine - 2m combined Basic Data Category: Wind turbines URL (first publication): https://youtube.com/shorts/Alf6EOTmlHM?feature=share Keywords: wind turbine, vertical, vawt, blades, piggott, alternator, efficiency, lattice tower, airfoil, AH93W215, savonius, auto start License: CC BY-SA 4.0 Organization: OHO Project status: Active Certification status: In process Technical documentation Maturity of the project: prototype Contains PDF-drawings: Yes CAD files are editable: Yes Assembly instructions are published: Yes Bill of materials is published: Yes no yes yes

Description

Technical documentation

PDF plans
Files: oho_tdc2_Turbina Darrieus combinada de 2m_0.02.pdf

CAD files
Files: oho_tdc2_STP-files.zip oho_tdc2_DWG-files.zip oho_tdc2_CAD-files.zip

Technical development
Files: Turbina eólica Darrieus 2022_detalles de desarrollo técnico_0.05.pdf

Project development

Based on the DIN 2221 standard, among others, OHO has established a series of stages in which the satisfactory completion of this project was carried out 1 Feasibility study Manufacturing as OSAT technology is possible? Materials, components Required materials and components can be sourced or replaced locally? ✗ No, Some electronic components may be required from external sources The materials used in this project can be purchased locally, with the exception of some elements that, depending on the area where the equipment is built, will have to be purchased in online stores, such as: * Charge controller * Inverter * Dump load Manufacturing processes Required manufacturing processes can be povided locally? ✓ Yes No specialized knowledge or complex equipment is required to manufacture this turbine Even in the manufacture of the generator, the tasks can be carried out by personnel with general training in workshop processes Specific training Is specific training for manufacturing necessary and can be provided? ✗ No Specific training is not considered necessary for the execution of this project, however, in addition to general knowledge of workshop processes, it will be advisable to have notions in: * Work with fiberglass * Wood carving for the molds of the blades Sustainability Do all materials and processes meet the sustainability criteria? ✓ Yes The product and its production process can be considered as sustainable 2 Market analisis and requirements Functional and quantitative requirements Functional and quantitative requirements Market analysis Analysis of the current products on the market: VAWT Darrieus Vertical Axis Wind Turbine with 3 phase axial flux generator * Price [USD]: - * Source: amazon * Country: USA * Machine condition: New * Rotor diameter [m]: 1 * Indicated power [W]: 100 * Blade height [m]: 1 * Low speed start: No ADSE-ER Vertical Wind Turbine, Wind Turbine Kit 1000W Darrieus Savonius Wind Power Generator with MPPT Controller 3 Fiberglass Blades for Deck, Marine, Motorhome (12 V) * Price [USD]: 1330 * Source: amazon * Country: China * Machine condition: New * Rotor diameter [m]: 0.6 * Indicated power [W]: 1000 * Blade height [m]: 0.95 * Low speed start: Yes promotion vertical wind generator eolienne verticale 1500w renewable energy * Price [USD]: 432 * Source: alibaba * Country: China * Machine condition: New * Rotor diameter [m]: 0.6 * Indicated power [W]: 1000 * Blade height [m]: 1.1 * Low speed start: Yes Requirements definition Definition of the main technical data: Rotor diameter [m]: 1 - 2 Power [W]: 500 - 1000 Blade height [m]: 0.8 - 1.5 Optimal functions and features Definition of necessary/optional functions and features: Generator: Mandatory Low speed start: Mandatory Battery and charge controller: Desirable 3 Search & analisis DIY technologies The best technical solutions for all parts and components OHO Search engine Customization of the OHO search engine When doing a search in our repository, Darrieus-type turbines are loaded together with the group of vertical axis turbines, generating some results like those shown, even from equipment that is not strictly Darrieus, but with similar operating principles. Manual search Manual search in Google, Youtube, special websites etc. * Title: Building a vertical axis wind turbine_H type * Views: 2469 * Likes: 57 * Comments: 8 * Blade height [m]: 1.2 * Low speed start: Pitch control * Generator: 12V DC motor with reducer * Airfoil: NACA 0018 * Title: DIY 1kw Darrieus VAWT * Views: 51292 * Likes: 794 * Comments: 37 * Power [W]: 608 * Low speed start: No * Blade height [m]: 2 * Main reference machine * Title: DIY VAWT wind turbine generator 2016 * Views: 71797 * Likes: 482 * Comments: 20 * Blade height [m]: 1.2 * Power [W]: 70 * Low speed start: No * Generator: Axial flux alternator * Theoretical efficiency [%]: 29 * Title: Building a Vertical Axis Wind Turbine. We no longer sell this R2-40 Rotating Assembly. * Views: 1712601 * Likes: 12024 * This example was added just to show a more robust design than usual 4 Development and documentation Plans and specifications of all parts and components Analisis of functions & structures Analysis of functions, assemblies and components The conversion from wind energy to electricity occurs due to the shape of the blade profile, so one of the most important aspects of this project was to achieve an aerodynamic profile with the techniques and tools available for Appropriate Technologies Additionally, the goal was set for the equipment to have a starting system at low wind speed, which was observed in commercial equipment but not much in DIY cases Technical solutions Development of technical solutions for assemblies and parts A review of the different options adopted in the DIY machines was carried out to meet each design requirement, observing the following variants for some evaluated details: * Evaluated detail: Blade Construction Wooden ribs covered with flexible foil Fiberglass covered ribs Wire cut foam material With PVC pipes * Evaluated detail: Airfoil NACA 0018 NACA 1418 NACA 0015 AH93W215 S-1046 NACA 0024 * Evaluated detail: Generator type DC Motor Axial flux alternator Car alternator * Evaluated detail: Self start method Combined Savonius Variable pitch Magnus effect * Evaluated detail: Mast Type Truss tower Tubular post See related comments: Discussion Technical documentation Creation of plans, parts lists, assembly instructions Once all the necessary information was available, the project plans were prepared Peer-Reviews Peer-Reviews by the community, team members, experts etc. Among some revised and improved aspects of the project, prior to the publication of the plans, we can mention: * Improvements in the presentation format of technical notes, they include illustrations on manufacturing * Using a template with a grid for quick copying of the airfoil and manufacturing of the blades * Use of metal straps to hold the Savonius internal blade (version 0.02 - part 1.18) * Simplification in the H-shape of the turbine structure, without requiring tensioning trusses in it 5. Manufacturing, tests and improvements To date, this project is on hold for manufacturing Workshop Determination of the workshop for manufacturing: This project is considered as belonging to the group of Appropriate Technologies, for which it has been developed with the intention of the greatest possible access to processes and materials by the developers, with a basic, moderately equipped workshop, however, it is necessary also have the following facilities: * Tools and materials for working with fiberglass * Tools for carving wood, in the case of blade moulds * Adequate spaces, tools and equipment to carry out electrical work, in the case of generator connections and the associated electrical network Although these conditions do not pose a greater difficulty during manufacturing, it is left to the developer's discretion to choose between carrying out this work or requesting the services of a third party to guarantee a professional work The purchasing, prototype manufacturing, testing, and documentation updating sub-processes, will be developed once the manufacturing stage is completed 6. Certification DIN Spec 3105 Formal audit Verification of the completeness of the documents: * Parts list * Drawings of all parts and assemblies * Assembly instructions * Optional documents, technical notes * These formal aspects have been verified, the project meets them satisfactorily Assignment of reviewers Search and assignment of peer-reviewers with sufficient expertise: Xtech2020_review Thehunter Peer-reviews Realization of the peer reviews, technical clarification, improvements: In the Parts list section, necessary comments and discussions have been made by the assigned reviewers and the developer Certificate Issue of the certificate: The project was reviewed by two reviewers from the OHO team. The review consisted of the following components: * Completeness check: Checks if all required documents have been submitted. * Review of the submitted documents: Checks if the information in the submitted documents is complete and correct. - Bill of materials - Are all parts and assemblies covered? - Are all quantities correct? - Are all required material specifications available? - Are all specifications for purchased parts and standard parts complete? * Technical drawings - Are all the required views available? - Are all required dimensional data available? * Suggestions for improvement Detail abot the review process: https://en.oho.wiki/wiki/Instructions_for_Reviewers Permanent Link: https://en.oho.wiki/index.php?title=Darrieus_Turbine_-_2m_combined&oldid=45791

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Parts list

Pos.	Qty.	Part Name	Part code	Part Type	Specifications	Review Status	Show All Comments
A1	1	3D Views				Edit Edit All	PDF
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A2	1	3D Explosion Views				Edit Edit All	PDF
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B		Parts list				Edit Edit All	PDF
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C		Technical notes				Edit Edit All	PDF
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1.00	1	Blade assembly				Edit Edit All	PDF
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1.01	18	Rib		Production	Cedar or pine wood, 350*74*12mm	Edit Edit All	PDF
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1.02	3	Rib2		Production	Cedar or pine wood, 500*500*500*12mm	Edit Edit All	PDF
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1.03	3	Fiber layer1		Production	Fiberglass and polyester resin, optional polyurethane filling. thickness: 3-5 mm	Edit Edit All	PDF
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1.04	3	Fiber layer2		Production	Fiberglass and polyester resin, optional polyurethane filler. thickness: 3-5 mm	Edit Edit All	PDF
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1.05	3	Fiber layer3		Production	Fiberglass and polyester resin, optional polyurethane filler. thickness: 3-5 mm.	Edit Edit All	PDF
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1.06	6	Blade reinforcement1		Production	Round tube 3/8", sch40 or similar, aluminum.	Edit Edit All	PDF
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1.07	2	Bearing		Buy	SKF 61808 2RZ bearing, 40*52*7mm, with double seal, double stuffing box HM4R and flanged housing	Edit Edit All
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1.08	3	Blade arm1		Production	Round tube 1 1/4", sch40 or similar, Iron	Edit Edit All	PDF
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1.09	3	Blade support1		Production	Plate 1 1/2"*4mm*117mm	Edit Edit All	PDF
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1.10	3	Blade bracket21		Production	Plate 1 1/2"*4mm*190mm	Edit Edit All	PDF
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1.11	6	Blade bolt2		Standard	Hexagonal bolt 3/8*2 1/2", UNC, grade5	Edit Edit All
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1.12	6	Blade nut2		Standard	Hex nut 3/8", UNC, grade 5	Edit Edit All
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1.13	6	Blade washer2		Standard	Flat washer for 3/8	Edit Edit All
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1.14	18	Blade bolt1		Standard	Hexagonal bolt 1/4*4*1" UNC, grade 5	Edit Edit All
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1.15	18	Blade nut1		Standard	Hex Nut, 1/4", UNC, Grade 5	Edit Edit All
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1.16	18	Washer washer washer1		Standard	Flat washer for 1/4	Edit Edit All
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1.17	63	Blade reinforcement bolt1		Standard	Drywall screw 1 1/2"#8	Edit Edit All
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1.18	9	Blade band		Production	Plate 1*1/8"*340mm	Edit Edit All	PDF
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2.00	1	Tower structure				Edit Edit All	PDF
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2.01	4	Main prop		Production	Angle 1*1"*3mm*2422mm	Edit Edit All	PDF
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2.02	4	Cross member1		Production	Angle 1*1"*3mm*616mm	Edit Edit All	PDF
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2.03	4	Crossbeam2		Production	Angle 1*1"*3mm*425mm	Edit Edit All	PDF
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2.04	4	Crossbeam3		Production	Angle 1*1"*3mm*233mm	Edit Edit All	PDF
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2.05	4	Truss1		Production	Round iron bar D3/8"*1100mm	Edit Edit All	PDF
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2.06	4	Truss2		Production	Round iron bar D3/8"*1030mm	Edit Edit All	PDF
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2.07	4	Anchor eye		Production	Flat bar 1 1/2"* 4mm*60mm	Edit Edit All	PDF
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2.08	1	Central post		Production	Round iron pipe 1 1/4" sch40 (e 3.5mm)*2100mm, Cylindrical	Edit Edit All	PDF
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2.09	1	Post guide		Production	Round iron pipe 1 1/2", sch40 (e 3.7mm) or similar, l 500mm	Edit Edit All	PDF
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2.10	8	Post support		Production	Plate 1 1/2"*4mm*177mm	Edit Edit All	PDF
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2.11	1	Stator support		Production	Iron plate 450*450*5mm	Edit Edit All	PDF
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2.12	2	Post bolt		Standard	Hexagonal bolt 3/8*2 1/2" UNC, grade 5	Edit Edit All
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2.13	2	Post nut		Standard	Hexagonal nut 3/8" UNC, grade 5	Edit Edit All
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3.00	1	Alternator				Edit Edit All	PDF
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3.01	1	Stator Casting		Production	Pre-mixed polyester resin with accelerator	Edit Edit All	PDF
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3.02	9	Coil		Production	Enameled copper cable, D 1.7 mm, 73 turns (for 12V), total weight: 3 kg	Edit Edit All	PDF
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3.03	1	Connector1		Buy	20A three-pole connector	Edit Edit All
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3.04	2	Rotor casting		Production	Premixed polyester resin with accelerator	Edit Edit All	PDF
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3.05	24	Ferrite magnet		Buy	Ferrite magnet block, grade 3, pre magnetized, 30*46*10mm	Edit Edit All
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