Timeline for wind generator for electronic devices
Current License: CC BY-SA 3.0
18 events
when toggle format | what | by | license | comment | |
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Nov 22, 2016 at 18:49 | history | edited | Autistic | CC BY-SA 3.0 |
English grammer and spelling
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Nov 12, 2016 at 12:37 | vote | accept | Ammar Mahadi | ||
Nov 12, 2016 at 11:54 | review | Close votes | |||
Nov 22, 2016 at 18:49 | |||||
Nov 12, 2016 at 11:17 | answer | added | Russell McMahon♦ | timeline score: 2 | |
Nov 12, 2016 at 10:43 | comment | added | user16324 | Check out this Q&A for a run-through of the basics. electronics.stackexchange.com/questions/177513/…. If you're using brushed DC motor it'll be less efficient btu you won't need a rectifier. | |
Nov 12, 2016 at 9:33 | comment | added | D.A.S. | low magnet stiction is essential. Remember to convert linear speed to RPM. Put two fans together and see if one can drive the other. If the speed ratio is 1% the voltage best case with NO load is 1%. YOu need to understand the coupling loss ...better | |
Nov 12, 2016 at 9:22 | comment | added | Ammar Mahadi | Thanks a lot for your information. Another thing, if I wanna get output 5V, Do i need 5V motor? or more than 5V motor? @TonyStewart.EEsince'75 | |
Nov 12, 2016 at 9:02 | comment | added | D.A.S. | yes motors work as generators with V proportional to RPM but I proportional to torque load so coupling of fan wind energy is difficult without inertia of air such as an open field or roof top or very high speed or very large blades as you know from a paper windmill= with close proximity. A large 2 litre pop bottle is sometimes used as a turbine but the torque is weak without sufficient wind. Wind has poor coupling properties unless you have high wing tip speed . This coupling factor we can model as a high resistance which is difficult to generate useful power is non-linear with wind speed. | |
Nov 12, 2016 at 8:47 | comment | added | Ammar Mahadi | but i want output that is suitable for electronic devices. Does the motor produce DC output? I'm still confused. @Bianca | |
Nov 12, 2016 at 8:34 | comment | added | Bianca | Aha. just don't think too much about today's youtube no-make-sense techie vids. I did with those kind of motor (taken from TAMIYA) on my fifth grade elementary school. It did turns on a LED, but not that bright. Later on, i use motor from bicycle generator, the one that stick to the tire. It is working. The blade size 80 cm. | |
Nov 12, 2016 at 8:26 | comment | added | Ammar Mahadi | how about wind from desk fan? @TonyStewart.EEsince'75 | |
Nov 12, 2016 at 8:25 | comment | added | Ammar Mahadi | youtube.com/watch?v=NCGVOdRoDPg .. the size just like in the video. try watching it. @Bianca | |
Nov 12, 2016 at 8:13 | comment | added | Bianca | how "small in size" do you wish ? wind vs blade need space. don't you think of it ? | |
Nov 12, 2016 at 8:04 | comment | added | D.A.S. | not even to power an LED | |
Nov 12, 2016 at 8:03 | comment | added | Ammar Mahadi | @TonyStewart.EEsince'75 i plan to get wind of fan in my room. Is it strong enough to rotate the blade? | |
Nov 12, 2016 at 7:59 | review | First posts | |||
Nov 12, 2016 at 11:33 | |||||
Nov 12, 2016 at 7:56 | comment | added | D.A.S. | what wind speed is avail and roof top generator size can you accept | |
Nov 12, 2016 at 7:52 | history | asked | Ammar Mahadi | CC BY-SA 3.0 |