Difference between revisions of "Darrieus Turbine - 2m combined"

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|trans_status=WT
|trans_status=WT
|desc=
|desc=__TOC__
__TOC__
<!-- Manufacturing project, Supported by: GLS Treuhand Stiftung Neue Energie -->
<!-- Manufacturing project, Supported by: GLS Treuhand Stiftung Neue Energie -->
|licence=CCBYSA40
|licence=CCBYSA40
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|versioning_system=yes
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|cmpimage=oho_tdc2_dt1.jpg
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|cmpimg=Based on the DIN 2221 standard, among others, OHO has established a series of <i class="mw-customtoggle-div1" style="color:#1b599a;">stages</i> in which the satisfactory [[Processes_involved_in_Project_Development|completion of this project]] was carried out
Based on the DIN 2221 standard, among others, OHO has established a series of <i class="mw-customtoggle-div1" style="color:#1b599a;">stages</i> in which the satisfactory [[Processes_involved_in_Project_Development|completion of this project]] was carried out
<div style="margin:20px"></div>
<div style="margin:20px"></div>
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<div class="mw-collapsible" id="mw-customcollapsible-div1" data-origID="mw-customcollapsible-div1"  data-origID="mw-customcollapsible-div1"><!-- mw-collapsed -->
==== 1 Feasibility study ====
==== 1 Feasibility study ====
-----
-----
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~~>
~~>
</div> -->
</div> -->
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|certificate_requested=No
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}}

Latest revision as of 14:17, 6 April 2023


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: Approved

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








Oho tdc2 render4.jpg

Description

Technical documentation

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?

Oho tdc2 002.jpg
  • 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
Oho tdc2 0jLA2u G4Dg-0708.png
  • Manufacturing processes
Required manufacturing processes can be povided locally?
✓ Yes
No specialized knowledge or complex equipment is required to manufacture this turbine
Oho teh2 W9KErFi.jpeg
Even in the manufacture of the generator, the tasks can be carried out by personnel with general training in workshop processes
Oho tdc2 wMM2m5Lkslw.jpg
  • 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:
Oho tdc2 y7xJrGTdqxQ.png
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
Oho tdc2 zIFD6oY0 fE.png
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
Oho tdc2 tRQzG5HvG9M.png
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
Oho tdc2 oho-search1.jpg
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.
Oho tdc2 nT7QgD PSlc.jpg
* 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
Oho tdc2 7GipP7c.jpeg
* 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
Oho tdc2 DTETK1Clb7w.jpg
* 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
Oho tdc2 0jLA2u G4Dg.jpg
* 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
Oho tdc2 011.jpg
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
Pdc certification-process-diag-page1.jpg
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:
  • 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:
Oho tdc2 attestation Darrieus-Turbine-2m-combined.png

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


+ General Reviews General Reviews

Parts list

Pos. Qty. Part Name Part code Part Type Specifications Review Status Show All Comments
A1 1 3D Views

REV1: Approved
REV2: Approved

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Item Reviews
A2 1 3D Explosion Views

REV1: Approved
REV2: Approved

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B Parts list

REV1: Approved
REV2: Approved

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C Technical notes

REV1: Approved
REV2: Approved

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Item Reviews
1.00 1 Blade assembly

REV1: Approved
REV2: Approved

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Item Reviews
1.01 18 Rib Production Cedar or pine wood, 350*74*12mm

REV1: Approved
REV2: Approved

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1.02 3 Rib2 Production Cedar or pine wood, 500*500*500*12mm

REV1: Approved
REV2: Approved

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1.03 3 Fiber layer1 Production Fiberglass and polyester resin, optional polyurethane filling. thickness: 3-5 mm

REV1: Approved
REV2: Approved

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1.04 3 Fiber layer2 Production Fiberglass and polyester resin, optional polyurethane filler. thickness: 3-5 mm

REV1: Approved
REV2: Approved

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1.05 3 Fiber layer3 Production Fiberglass and polyester resin, optional polyurethane filler. thickness: 3-5 mm.

REV1: Approved
REV2: Approved

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Item Reviews
1.06 6 Blade reinforcement1 Production Round tube 3/8", sch40 or similar, aluminum.

REV1: Approved
REV2: Approved

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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

REV1: Approved
REV2: Approved

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Item Reviews
1.08 3 Blade arm1 Production Round tube 1 1/4", sch40 or similar, Iron

REV1: Approved
REV2: Approved

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1.09 3 Blade support1 Production Plate 1 1/2"*4mm*117mm

REV1: Approved
REV2: Approved

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1.10 3 Blade bracket21 Production Plate 1 1/2"*4mm*190mm

REV1: Approved
REV2: Approved

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1.11 6 Blade bolt2 Standard Hexagonal bolt 3/8*2 1/2", UNC, grade5

REV1: Approved
REV2: Approved

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1.12 6 Blade nut2 Standard Hex nut 3/8", UNC, grade 5

REV1: Approved
REV2: Approved

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Item Reviews
1.13 6 Blade washer2 Standard Flat washer for 3/8

REV1: Approved
REV2: Approved

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1.14 18 Blade bolt1 Standard Hexagonal bolt 1/4*4*1" UNC, grade 5

REV1: Approved
REV2: Approved

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1.15 18 Blade nut1 Standard Hex Nut, 1/4", UNC, Grade 5

REV1: Approved
REV2: Approved

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Item Reviews
1.16 18 Washer washer washer1 Standard Flat washer for 1/4

REV1: Approved
REV2: Approved

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1.17 63 Blade reinforcement bolt1 Standard Drywall screw 1 1/2"#8

REV1: Approved
REV2: Approved

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1.18 9 Blade band Production Plate 1*1/8"*340mm

REV1: Approved
REV2: Approved

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2.00 1 Tower structure

REV1: Approved
REV2: Approved

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2.01 4 Main prop Production Angle 1*1"*3mm*2422mm

REV1: Approved
REV2: Approved

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2.02 4 Cross member1 Production Angle 1*1"*3mm*616mm

REV1: Approved
REV2: Approved

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2.03 4 Crossbeam2 Production Angle 1*1"*3mm*425mm

REV1: Approved
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2.04 4 Crossbeam3 Production Angle 1*1"*3mm*233mm

REV1: Approved
REV2: Approved

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2.05 4 Truss1 Production Round iron bar D3/8"*1100mm

REV1: Approved
REV2: Approved

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2.06 4 Truss2 Production Round iron bar D3/8"*1030mm

REV1: Approved
REV2: Approved

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2.07 4 Anchor eye Production Flat bar 1 1/2"* 4mm*60mm

REV1: Approved
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2.08 1 Central post Production Round iron pipe 1 1/4" sch40 (e 3.5mm)*2100mm, Cylindrical

REV1: Approved
REV2: Approved

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2.09 1 Post guide Production Round iron pipe 1 1/2", sch40 (e 3.7mm) or similar, l 500mm

REV1: Approved
REV2: Approved

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2.10 8 Post support Production Plate 1 1/2"*4mm*177mm

REV1: Approved
REV2: Approved

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2.11 1 Stator support Production Iron plate 450*450*5mm

REV1: Approved
REV2: Approved

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Item Reviews
2.12 2 Post bolt Standard Hexagonal bolt 3/8*2 1/2" UNC, grade 5

REV1: Approved
REV2: Approved

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Item Reviews
2.13 2 Post nut Standard Hexagonal nut 3/8" UNC, grade 5

REV1: Approved
REV2: Approved

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3.00 1 Alternator

REV1: Approved
REV2: Approved

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3.01 1 Stator Casting Production Pre-mixed polyester resin with accelerator

REV1: Approved
REV2: Approved

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3.02 9 Coil Production Enameled copper cable, D 1.7 mm, 73 turns (for 12V), total weight: 3 kg

REV1: Approved
REV2: Approved

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3.03 1 Connector1 Buy 20A three-pole connector

REV1: Approved
REV2: Approved

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3.04 2 Rotor casting Production Premixed polyester resin with accelerator

REV1: Approved
REV2: Approved

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3.05 24 Ferrite magnet Buy Ferrite magnet block, grade 3, pre magnetized, 30*46*10mm

REV1: Approved
REV2: Approved

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