Run a fan with the energy of a river
published: 19/06/09, 05:39
Hi everyone, I'm new here, so I introduce myself:
My name is Thomas and currently I am in Vietnam (in Hanoi) for 1 month.
I left with an association of medical students who take care of helping some families who live in a slum on houses / boats on the banks of the Red River.
When I learned that I was in ange school (even if it only started for me), they all fell on me and asked me if it would be possible either:
- Of run a fan using energy from the river (there are a lot of young children who live in this slum and a priori a small fan that would not be luxury)
- either recharge a battery (it's too expensive for these people to charge them in town)
The big problem is that here the budget is very very small (I could almost say that there is none).
I do not yet know the flow of the river, but I will try to use the plug technique (seen on another subject) and estimate the surface.
I have some rough ideas but really nothing concrete yet.
given my budget, I first thought of a small system water mill with a reducer (bicycle recovery) and finally a dynamo (again the bicycle)
If I'm not mistaken, a bicycle dynamo delivers 6V to 0.5A continuously?
Is it enough to charge a battery or run a fan? ( for the fan an AC alternating current would be better, right? lol) in any case with a dynamo I would not have a problem with the speed of rotation ...
Maybe several mills in parallel to increase the intensity?
Otherwise the great passion of the Vietnamese is the "motorbike"!
it might be possible to get an alternator on a scooter in the area ... but I imagine that the speed of rotation for a good operation is too high for me ...
Small precision, basically I'm not a DIY ... but hey I must be able to find it in the corner
Do you think it's utopian as a project where there might be a way to achieve something?
Thank you for your answers !
++
My name is Thomas and currently I am in Vietnam (in Hanoi) for 1 month.
I left with an association of medical students who take care of helping some families who live in a slum on houses / boats on the banks of the Red River.
When I learned that I was in ange school (even if it only started for me), they all fell on me and asked me if it would be possible either:
- Of run a fan using energy from the river (there are a lot of young children who live in this slum and a priori a small fan that would not be luxury)
- either recharge a battery (it's too expensive for these people to charge them in town)
The big problem is that here the budget is very very small (I could almost say that there is none).
I do not yet know the flow of the river, but I will try to use the plug technique (seen on another subject) and estimate the surface.
I have some rough ideas but really nothing concrete yet.
given my budget, I first thought of a small system water mill with a reducer (bicycle recovery) and finally a dynamo (again the bicycle)
If I'm not mistaken, a bicycle dynamo delivers 6V to 0.5A continuously?
Is it enough to charge a battery or run a fan? ( for the fan an AC alternating current would be better, right? lol) in any case with a dynamo I would not have a problem with the speed of rotation ...
Maybe several mills in parallel to increase the intensity?
Otherwise the great passion of the Vietnamese is the "motorbike"!
it might be possible to get an alternator on a scooter in the area ... but I imagine that the speed of rotation for a good operation is too high for me ...
Small precision, basically I'm not a DIY ... but hey I must be able to find it in the corner
Do you think it's utopian as a project where there might be a way to achieve something?
Thank you for your answers !
++