Difference between revisions of "Selected Savonius wind turbines"
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! Property | ! Property | ||
! Evaluator | ! Evaluator | ||
! Comments | ! Comments | ||
! Score | ! Score | ||
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| rowspan="3" | Operational safety | | rowspan="3" | Operational safety | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| thehunter: In the video it is not possible to see if there is an automatic shutdown in case of strong wind. Possibly via the generators. It is a very professional construction, so I assume that there is an automatic shutdown. The construction looks very stable. The additional lashings with wire ropes give additional use stiffness. | ||
| style="text-align:center;" | 3 | | style="text-align:center;" | 3 | ||
|- | |- | ||
|| | || Evaluator2: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|| | || Evaluator3: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
|- | |- | ||
| rowspan="3" | | | rowspan="3" | Durabilityist | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| thehunter: All components seem to be made of stainless steel. The structure seems adequately sized. | ||
| style="text-align:center;" | 3 | | style="text-align:center;" | 3 | ||
|- | |- | ||
|| | || Evaluator2: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|| | || Evaluator3: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
|- | |- | ||
| rowspan="3" | Investment cost | | rowspan="3" | Investment cost | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| thehunter: I assume that because of the use of stainless steel the manufacturing cost is quite high. | ||
| style="text-align:center;" | 2 | | style="text-align:center;" | 2 | ||
|- | |- | ||
|| | || Evaluator2: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
|- | |- | ||
|| | || Evaluator3: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
|- | |- | ||
| rowspan="3" | Supply of materials, standard and purchased components | | rowspan="3" | Supply of materials, standard and purchased components | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| thehunter: The purchased parts, i.e. electrics, alternator, pulleys, V-belts et cetera seem to be commercially available components. | ||
| style="text-align:center;" | 3 | | style="text-align:center;" | 3 | ||
|- | |- | ||
|| | || Evaluator2: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
|- | |- | ||
|| | || Evaluator3: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
|- | |- | ||
| rowspan="3" | Manufacturing processes | | rowspan="3" | Manufacturing processes | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| thehunter: The constructor of thi sproject needs to have experience in working with stainless steel. | ||
| style="text-align:center;" | 2 | | style="text-align:center;" | 2 | ||
|- | |- | ||
|| | || Evaluator2: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
|- | |- | ||
|| | || Evaluator3: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
|- | |- | ||
| rowspan="3" | Others | | rowspan="3" | Others | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| thehunter: Apparently it is a very professional and sophisticated design, but also quite expensive due to the materials used. | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
|- | |- | ||
|| | || Evaluator2: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
|- | |- | ||
|| | || Evaluator3: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
|- | |- | ||
| rowspan="3" | Recommendations | | rowspan="3" | Recommendations | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| thehunter: Consider whether stainless steel really has to be used everywhere. | ||
| style="text-align:center;" | - | | style="text-align:center;" | - | ||
|- | |- | ||
|| | || Evaluator2: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | - | | style="text-align:center;" | - | ||
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|| | || Evaluator3: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | - | | style="text-align:center;" | - | ||
|- | |- | ||
|colspan="3" style="text-align:Right;"|'''Total score | |colspan="3" style="text-align:Right;"|'''Total score Evaluator1:''' | ||
|style="text-align:left;" | ''' ''' | |style="text-align:left;" | ''' ''' | ||
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|style="text-align:left;" | ''' ''' | |style="text-align:left;" | ''' ''' | ||
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|colspan="3" style="text-align:Right;"|'''Total score | |colspan="3" style="text-align:Right;"|'''Total score Evaluator2:''' | ||
|style="text-align:left;" | ''' ''' | |style="text-align:left;" | ''' ''' | ||
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! Property | ! Property | ||
! Evaluator | ! Evaluator | ||
! Comments | ! Comments | ||
! Score | ! Score | ||
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| rowspan="3" | Operational safety | | rowspan="3" | Operational safety | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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| rowspan="3" | Durability | | rowspan="3" | Durability | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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| rowspan="3" | Investment cost | | rowspan="3" | Investment cost | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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| rowspan="3" | Supply of materials, standard and purchased components | | rowspan="3" | Supply of materials, standard and purchased components | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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| rowspan="3" | Manufacturing processes | | rowspan="3" | Manufacturing processes | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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| rowspan="3" | Others | | rowspan="3" | Others | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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| rowspan="3" | Recommendations | | rowspan="3" | Recommendations | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | - | | style="text-align:center;" | - | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
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! Property | ! Property | ||
! Evaluator | ! Evaluator | ||
! Comments | ! Comments | ||
! Score | ! Score | ||
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| rowspan="3" | Operational safety | | rowspan="3" | Operational safety | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|| | || Evaluator2: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
|- | |- | ||
| rowspan="3" | Durability | | rowspan="3" | Durability | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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| rowspan="3" | Investment cost | | rowspan="3" | Investment cost | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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| rowspan="3" | Supply of materials, standard and purchased components | | rowspan="3" | Supply of materials, standard and purchased components | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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| rowspan="3" | Manufacturing processes | | rowspan="3" | Manufacturing processes | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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| rowspan="3" | Others | | rowspan="3" | Others | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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| rowspan="3" | Recommendations | | rowspan="3" | Recommendations | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
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! Property | ! Property | ||
! Evaluator | ! Evaluator | ||
! Comments | ! Comments | ||
! Score | ! Score | ||
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| rowspan="3" | Operational safety | | rowspan="3" | Operational safety | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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| rowspan="3" | Durability | | rowspan="3" | Durability | ||
| | | Evaluator1: | ||
|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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| rowspan="3" | Investment cost | | rowspan="3" | Investment cost | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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| rowspan="3" | Supply of materials, standard and purchased components | | rowspan="3" | Supply of materials, standard and purchased components | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
| style="text-align:center;" | | | style="text-align:center;" | | ||
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| rowspan="3" | Manufacturing processes | | rowspan="3" | Manufacturing processes | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
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| rowspan="3" | Others | | rowspan="3" | Others | ||
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| rowspan="3" | Recommendations | | rowspan="3" | Recommendations | ||
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|style="width: 45%"| | |style="width: 45%"| | ||
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Revision as of 14:37, 21 April 2021
Objectives
- Collect information from projects related to Savonius rotor.
- Present the projects with the most important information.
- Evaluate strengths and weaknesses of each project.
Project 1 - How To Build mobile Savonius - Rotor eolienne
Project data | |
---|---|
Url original | https://www.youtube.com/watch?v=L3HDEkuIDYc |
Url on OHO | https://en.oho.wiki/wiki/How_To_Build_mobile_Savonius_-_Rotor_eolienne_2 |
Images | |
Technical data | |
Category | Renewable energies > Wind turbines > Savonius wind turbines |
Subclass | VA – vertical axis frame |
Use | Electricity generation |
Rotor | N-E |
Power | N-E |
Dimensions | N-E |
Components | |
Rotor | 8 blades |
Transmission | N-E
Belts and pulleys |
Generator | N-E
2 units |
Machine frame | N-E
Mobile structure |
Mast | N-E |
Brake | N-E |
Safety shutdown | N-E |
Other components | Rear suspension, tension cables, trailer anchor, board and electrical wiring |
YouTube data | |
Visits / likes / don't likes | 8180 / 42 / 2 |
Uploaded date | 12.10.2014 |
Important comments | - |
Evaluation | |||
---|---|---|---|
Score Legend: 1-> Deficient, 2-> Regular, 3-> Ok | |||
Property | Evaluator | Comments | Score |
Operational safety | Evaluator1: | thehunter: In the video it is not possible to see if there is an automatic shutdown in case of strong wind. Possibly via the generators. It is a very professional construction, so I assume that there is an automatic shutdown. The construction looks very stable. The additional lashings with wire ropes give additional use stiffness. | 3 |
Evaluator2: | |||
Evaluator3: | |||
Durabilityist | Evaluator1: | thehunter: All components seem to be made of stainless steel. The structure seems adequately sized. | 3 |
Evaluator2: | |||
Evaluator3: | |||
Investment cost | Evaluator1: | thehunter: I assume that because of the use of stainless steel the manufacturing cost is quite high. | 2 |
Evaluator2: | |||
Evaluator3: | |||
Supply of materials, standard and purchased components | Evaluator1: | thehunter: The purchased parts, i.e. electrics, alternator, pulleys, V-belts et cetera seem to be commercially available components. | 3 |
Evaluator2: | |||
Evaluator3: | |||
Manufacturing processes | Evaluator1: | thehunter: The constructor of thi sproject needs to have experience in working with stainless steel. | 2 |
Evaluator2: | |||
Evaluator3: | |||
Others | Evaluator1: | thehunter: Apparently it is a very professional and sophisticated design, but also quite expensive due to the materials used. | |
Evaluator2: | |||
Evaluator3: | |||
Recommendations | Evaluator1: | thehunter: Consider whether stainless steel really has to be used everywhere. | - |
Evaluator2: | - | ||
Evaluator3: | - | ||
Total score Evaluator1: | |||
Total score Evaluato 2: | |||
Total score Evaluator2: |
Project 2 - Savonius - rotor self-made
Project data | |
---|---|
Url original | https://www.youtube.com/watch?v=rt1aRkNBBtE |
Url on OHO | https://en.oho.wiki/wiki/Savonius_-_rotor_self-made |
Images | |
Technical data | |
Category | Renewable energies > Wind turbines > Savonius wind turbines |
Subclass | VA – vertical axis frame |
Use | Electricity generation |
Rotor | diameter: 1 m |
Power | 200 Watt max |
Dimensions | height: 1 m |
Components | |
Rotor | 3 blades |
Transmission | N-E
Belts and pulleys |
Generator | was an 80 volt permanent magnet DC motor |
Machine frame | N-E
Mobile structure |
Mast | N-E |
Brake | N-E |
Safety shutdown | N-E |
Other components | Legs, shaft, bearings |
YouTube data | |
Visits / likes / don't likes | 142.377 / 61 / 5 |
Uploaded date | 17.02.2008 |
Important comments | A hub motor from an e-bike would work better because you don't have to translate it so much. The powered generator stores its energy in lead gel batteries and is then used for lighting etc when needed. |
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Project 3 - Savonius Rotor (Homemade) - Water Pump Application
Project data | |
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Url original | https://www.youtube.com/watch?v=_G4wcEOAtFA |
Url on OHO | https://en.oho.wiki/wiki/Savonius_Rotor_(Homemade)_-_Water_Pump_Application_-_Part_1_-_Feng_Shui |
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Technical data | |
Category | Renewable energies > Wind turbines > Savonius wind turbines |
Subclass | VA – vertical axis frame |
Use | Pumping water |
Rotor | N-E |
Power | N-E |
Dimensions | N-E |
Components | |
Rotor | 4 blades |
Transmission | N-E
crank-rod system |
Pump | Piston water pump |
Machine frame | N-E |
Mast | N-E |
Brake | N-E |
Safety shutdown | N-E |
Other components | Tension cables, long piston rod |
YouTube data | |
Visits / likes / don't likes | 5880 / 24 / 0 (2 videos) |
Uploaded date | 17.04.2013 |
Important comments | homemade construction, with recycled materials. |
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Project 4 - Savonius rotor self-made (in use)
Project data | |
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Url original | https://www.youtube.com/watch?v=3NCPkuCk1Ts |
Url on OHO | https://en.oho.wiki/wiki/Savonius_rotor_self-made_(in_use) |
Images | |
Technical data | |
Category | Renewable energies > Wind turbines > Savonius wind turbines |
Subclass | VA – vertical axis frame |
Use | Electricity generation |
Rotor | N-E |
Power | N-E
4 super bright, white LEDs are operated |
Dimensions | N-E |
Components | |
Rotor | 2 blades - small scale |
Transmission | N-E |
Generator | N-E |
Machine frame | N-E |
Mast | N-E |
Brake | N-E |
Safety shutdown | N-E |
Other components | current limiting module (3.5 volts / 120 mA) connected upstream |
YouTube data | |
Visits / likes / don't likes | 40.338 / 45 / 5 (2 videos) |
Uploaded date | 21.05.2009 |
Important comments | Small speeds or low wind speeds are completely sufficient |
Evaluation | |||
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Summary
Project 1 | Project 2 | Project 3 | Project 4 | |
---|---|---|---|---|
Title | How To Build mobile Savonius - Rotor eolienne | Savonius - rotor self-made | Savonius Rotor (Homemade) - Water Pump Application | Savonius rotor self-made (in use) |
Url | https://www.youtube.com/watch?v=L3HDEkuIDYc | https://www.youtube.com/watch?v=rt1aRkNBBtE | https://www.youtube.com/watch?v=_G4wcEOAtFA |
https://www.youtube.com/watch?v=3NCPkuCk1Ts |
OHO url | https://en.oho.wiki/wiki/How_To_Build_mobile_Savonius_-_Rotor_eolienne_2 | https://en.oho.wiki/wiki/Savonius_-_rotor_self-made | https://en.oho.wiki/wiki/Savonius_Rotor_(Homemade)_-_Water_Pump_Application_-_Part_1_-_Feng_Shui | https://en.oho.wiki/wiki/Savonius_rotor_self-made_(in_use) |
Use | Electricity generation | Electricity generation | Water Pumping | Electricity generation |
Recomendations | - | - | - | - |
Total score | - | - | - | - |