Hello,
I am a new one and I came across your forum after some research, and I thought that your opinion and your contributions would be of great help to us.
With my partner, we would like to make a small 12V hydroelectric turbine (car alternator) providing approximately 1, even 2A or more if possible. The turbine would power one or more lamps.
The constraints are as follows:
-Null budget (or almost, we only do recovery)
-In an ecological and beauty concern of the place, the alternator / turbine system must be removable (for the removed when we are not there for example)
- The passage of water must be forced using a tank calculated accordingly (no natural dam).
Advantages:
- We are two and well motivated
- We are students at the end of Industrial Maintenance training
We would like to know how we could take, especially with the water dam, what type of turbine manufactured and with what materials ...
Support for achieving a hydrau / electric alternator
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- I discovered econologic
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- Registration: 26/03/16, 09:28
Re: Help for the realization of a hydrau / electric alternator
You give no details on the watercourse which must receive your device ... blah!
To evaluate the sizing, you can use this link.
The zero budget is a handicap, especially if the tools and know-how are also lacking ... (I'm kidding, ... a little).
The simplest system compared to its efficiency is that of the bucket wheel, provided that there is a minimum level difference; this wheel rotates slowly and therefore does not require sophisticated technology (no need, for example careful balancing) and can be made from salvaged parts (such as cylindrical drums cut in half).
PS: the title does not really correspond to the subject of the question ...
To evaluate the sizing, you can use this link.
The zero budget is a handicap, especially if the tools and know-how are also lacking ... (I'm kidding, ... a little).
The simplest system compared to its efficiency is that of the bucket wheel, provided that there is a minimum level difference; this wheel rotates slowly and therefore does not require sophisticated technology (no need, for example careful balancing) and can be made from salvaged parts (such as cylindrical drums cut in half).
PS: the title does not really correspond to the subject of the question ...
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"Please don't believe what I'm telling you."
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- I discovered econologic
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- Registration: 26/03/16, 09:28
Re: Help for the realization of a hydrau / electric alternator
This is where I find myself. I want to have a tank fitted with a tap that will be left at a given height so that the waterfall is large enough to turn my turbine. But I wonder what would be the maximum speed of the latter?
0 x
Re: Help for the realization of a hydrau / electric alternator
It would be good to try to be, if possible, more clear.
The flow of your "tap" (it would be better to speak of a valve) will be proportional to its section, within the limit of the flow of the stream; I am surprised at such a question.
The flow of your "tap" (it would be better to speak of a valve) will be proportional to its section, within the limit of the flow of the stream; I am surprised at such a question.
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"Please don't believe what I'm telling you."
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Re: Help for the realization of a hydrau / electric alternator
Auto alternators have the advantage of being free because of recovery ... but have poor efficiency (around 50%) and require a high speed of rotation (therefore gear reduction ... therefore further reduction in overall efficiency) ... and reliability is not necessarily at the appointment.
I remind you that a car engine is designed to last 5000h - or 250 km at 000km / h on average - ... lifetime during which the alternator is often changed at least once.
And 5000h in continuous operation is 5000/24 it is barely 208 days!
So an alternator that makes half the life of a car turns therefore the equivalent of barely 100 days ... in broad approximation.
It is better to leave on a dedicated generator (with permanent magnet for example)
Unless we don't have big needs, an interesting energy potential which allows these losses so ... and we have lots of alternators on hand
I remind you that a car engine is designed to last 5000h - or 250 km at 000km / h on average - ... lifetime during which the alternator is often changed at least once.
And 5000h in continuous operation is 5000/24 it is barely 208 days!
So an alternator that makes half the life of a car turns therefore the equivalent of barely 100 days ... in broad approximation.
It is better to leave on a dedicated generator (with permanent magnet for example)
Unless we don't have big needs, an interesting energy potential which allows these losses so ... and we have lots of alternators on hand
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Re: Help for the realization of a hydrau / electric alternator
Duration and reliability hardly play a role here, since it is a study project that is not intended for sustainability.
On the point of efficiency and the disadvantage of high turnover, on the other hand, it is not effectively the optimum ...
I do not know on what type of equipment and if it is possible to recover a generator better suited to this use? Anyone have any idea? Chatelot?
On the point of efficiency and the disadvantage of high turnover, on the other hand, it is not effectively the optimum ...
I do not know on what type of equipment and if it is possible to recover a generator better suited to this use? Anyone have any idea? Chatelot?
0 x
"Please don't believe what I'm telling you."
Re: Help for the realization of a hydrau / electric alternator
Hello,
We have little data on the watercourse but it has this which could be suitable.
A turbine idea:
http://www.ebay.fr/itm/Pelton-Water-Whe ... TocR8CBLMA
we can find much cheaper
and for the generator:
http://www.ebay.fr/itm/Pelton-Turbine-W ... SwstxU2K1t
and you can get cheaper by searching on the same criteria and same site.
I think it is the best solution for your project in addition to simplicity and high efficiency.
Good luck
We have little data on the watercourse but it has this which could be suitable.
A turbine idea:
http://www.ebay.fr/itm/Pelton-Water-Whe ... TocR8CBLMA
we can find much cheaper
and for the generator:
http://www.ebay.fr/itm/Pelton-Turbine-W ... SwstxU2K1t
and you can get cheaper by searching on the same criteria and same site.
I think it is the best solution for your project in addition to simplicity and high efficiency.
Good luck
0 x
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- Registration: 10/02/03, 14:06
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Re: Help for the realization of a hydrau / electric alternator
The Pelton turbine is intended for high hydraulic pressure (in industry it is 20 bars mini, therefore 200 m of fall), not sure that this is suitable for the project ... Obviously they want to do a practical work, I doubt they can mount a tank at 200 m
Here is a TP Mini Hydroelectric Power Plant:
Here is a TP Mini Hydroelectric Power Plant:
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Re: Help for the realization of a hydrau / electric alternator
Here is a table of some Pelton installed in France: https://fr.wikipedia.org/wiki/Turbine_P ... _en_France
Minimum: 300m of fall ... maximum 1400m all the same! Waaw!
Minimum: 300m of fall ... maximum 1400m all the same! Waaw!
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Do a image search or an text search - Netiquette of forum
Re: Help for the realization of a hydrau / electric alternator
Not for this type of pelton, we can start to have energy with 1 bar, advantage works with water intake type 9mm (PER). We arrive at a generator output efficiency of 60% compared to the potential energy of the captured water which is passed through the turbine with a very simple system.
See this links:
8 liters / s of water and 28m in height (1400 W) plastic turbine (50 euros)
https://www.youtube.com/watch?v=_vmO0FX3kLk
See this links:
8 liters / s of water and 28m in height (1400 W) plastic turbine (50 euros)
https://www.youtube.com/watch?v=_vmO0FX3kLk
0 x
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