- #1
Alfredo722
- 12
- 1
How difficult would it be to harvest the electrical out put of 8 small 3 volt motor/generator?
Not really, no. Your question was really, really vague. If forced to take a stab at it, I'd say connect a string of 3V light bulbs to it. But I'm going to guess that's not what you are after...Alfredo722 said:can you direct me to an example?
russ_watters said:Not really, no. Your question was really, really vague. If forced to take a stab at it, I'd say connect a string of 3V light bulbs to it. But I'm going to guess that's not what you are after...
In order for us to help you, you are going to need to explain what it is you are actually trying to do.[
Sorry for the vague question. I would like to charge 4 AA batteries using the wind to turn a turbine that rotates a large plate that then rotates the 8 separate 3v motor/generator. I've built a prototype and am not sure how to insure that each output from each motor can be stored and utilized for recharging batteries. Rpm is 72 to 1, the motor / generator out put is 6VDC,6000RPM,90mA Rated 4600RPM Maximum, 137g-cm,620 mA Starting Current: 2.8A .russ_watters said:Not really, no. Your question was really, really vague. If forced to take a stab at it, I'd say connect a string of 3V light bulbs to it. But I'm going to guess that's not what you are after...
In order for us to help you, you are going to need to explain what it is you are actually trying to do.
Before you spend more time on this project, you should see how the motor behaves when connected to the actual turbine. If you are getting 90mA at 6000rpm then how will you achieve that speed with a wind turbine at only a few hundred RPM? If you are considering using gears to give you more RPM then you will have efficiency to deal with. Commercial Wind Turbines tend to use purpose built alternators and they work fairly well )but seldom very impressively - I speak from experience of a small (commercial) 12V wind turbine on a boat, which was nicely engineered and used a specially designed multipole alternator.Alfredo722 said:Sorry for the vague question. I would like to charge 4 AA batteries using the wind to turn a turbine that rotates a large plate that then rotates the 8 separate 3v motor/generator. I've built a prototype and am not sure how to insure that each output from each motor can be stored and utilized for recharging batteries. Rpm is 72 to 1, the motor / generator out put is 6VDC,6000RPM,90mA Rated 4600RPM Maximum, 137g-cm,620 mA Starting Current: 2.8A .
That's a pretty high ratio and I don't understand about the output pinions only engaging the drive wheel for part of the time. If you want gears to be efficient then I though the profiles had to be just right and, of course, they would need to be meshed correctly all the time. A friction take off is really not very efficient. Cycle Dynamos with a wheel resting on the tyre are pretty poor, compared with the 'Dynohub' style, in which there is a magnet that rotates with the hub and q stator coil. No mechanical linkage at all - just magnetic coupling ( as with my wind turbine)Alfredo722 said:giving the setup a 72 - 1 ratio
That's your opinion but it's not supported by most successful Engineers. I must admit that I never embark on anything that I can't be fairly sure will work properly. 'Suck it and see' gives such a divergent path in any investigative process that you can easily get nowhere at all because of some very minor matter. Loads of diagrams and calculations (plus loads of reading) can deliver a more credible design than just bolting a few things together. But that can be great fun, I admit.Alfredo722 said:any new idea, concept should be done on a shoestring;
Wind turbines are great when the conditions allow but more than one energy source will "keep the lights on" for longer. Sailing boats that do not use their engines for long periods tend to use PV and Wind turbines AND a big bank of batteries - which will cost a fair bit if you need to give yourself several days of storage capacity. Flat calm and fog will really spoil your day. My 12V PV system let me down the other week when the sun didn't show itself through low cloud and fog for a few days. I guess I should have had a pedal generator to help but I just ran a mains extension lead across the garden. Cheating.Alfredo722 said:I haven't really checked out too many of them to be sure. My focus has been to at least keep the lights on through the night. In that regard something is better than nothing. As stated before apartment dwellers have little recourse when it comes to charging small devices.
A 3-volt hobby motor/generator is a small electrical device that can both generate and convert electricity. It typically operates on a low voltage of 3 volts and is commonly used in hobby projects such as model trains, remote-controlled cars, and small robots.
A 3-volt hobby motor/generator works by utilizing electromagnetic induction. When a coil of wire is rotated within a magnetic field, it creates an electrical current. This current can then be used to power other electrical components or stored in a battery for later use.
It depends on the power requirements of your electronic device. A 3-volt hobby motor/generator may not be powerful enough to provide sufficient energy for larger devices. However, it can be used to power smaller devices or as a supplemental power source.
To harvest electricity from a 3-volt hobby motor/generator, you can connect it to a circuit or battery. As the motor rotates, it will generate electricity that can be used to power other components or stored for later use.
Some practical applications of using 3-volt hobby motor/generator harvesting include powering small electronic devices, charging batteries, and creating renewable energy sources for hobby projects. It can also be used in educational settings to teach about electricity and electromagnetism.