Posted by John Smith (nom de guerre) on November 24, 2006, 4:40 am
some user suggested:
F R E E E N E R G Y
"It's the simplest idea. All you gotta do, is get a couple large
buoys, that let's say take maybe a twenty foot square space, maybe
a foot or two thick, and they contain air, made of some strong
plastics. You just take that, anchor it stationary to the ocean
floor, and have it situated on a gear system where, even though the
buoy moves up and down slightly, there is such a tremendous amount
of force on it, through the rising of the tides, that through gear
ratios, you could easily get some turbines going for a thousand
bucks or something. Not a big investment to give you free energy
endlessly. "
Which is exactly what a university and some swedish scientists have
managed to make. the most efficient wave-energy powerstation large
scale.
Posted by Eeyore on November 24, 2006, 8:59 am
"John Smith (nom de guerre)" wrote:
> some user suggested:
> F R E E E N E R G Y
> "It's the simplest idea. All you gotta do, is get a couple large
> buoys, that let's say take maybe a twenty foot square space, maybe
> a foot or two thick, and they contain air, made of some strong
> plastics. You just take that, anchor it stationary to the ocean
> floor, and have it situated on a gear system where, even though the
> buoy moves up and down slightly, there is such a tremendous amount
> of force on it, through the rising of the tides, that through gear
> ratios, you could easily get some turbines going for a thousand
> bucks or something. Not a big investment to give you free energy
> endlessly. "
> Which is exactly what a university and some swedish scientists have
> managed to make. the most efficient wave-energy powerstation large
> scale.
Oh really ?
Posted by Derek Broughton on November 24, 2006, 9:06 am
John Smith (nom de guerre) wrote:
> some user suggested:
>
> F R E E E N E R G Y
>
> "It's the simplest idea. All you gotta do, is get a couple large
> buoys, that let's say take maybe a twenty foot square space, maybe
> a foot or two thick, and they contain air, made of some strong
> plastics. You just take that, anchor it stationary to the ocean
> floor, and have it situated on a gear system where, even though the
> buoy moves up and down slightly, there is such a tremendous amount
> of force on it, through the rising of the tides, that through gear
> ratios, you could easily get some turbines going for a thousand
> bucks or something. Not a big investment to give you free energy
> endlessly. "
>
>
> Which is exactly what a university and some swedish scientists have
> managed to make. the most efficient wave-energy powerstation large
> scale.
It's a reasonable idea, but it hardly amounts to "Free" energy. One of the
biggest problems is the corrosive nature of salt water. Those turbines
will require a lot of maintenance.
--
derek
Posted by EXT on November 24, 2006, 10:59 am
I'm not an engineer but I can see a number of holes in this idea.
1. Cables can only pull not push, so the wave action will only work when the
float is lifted. You will need a weight or spring to retract the cable as
the float drops which means the lift action will have to work against the
spring or weight reducing the energy available.
2. The lift action will only occur in pulses as the waves come in and not
produce continuous energy. Tides occur every 12 hours, and only once which
will not add much energy to the system.
3. The float will have to displace enough water to provide adequate lift
without submerging.
4. Transferring all this motion from deep water to dry land will create its
own massive problems.
There are probably many other problems that do not immediately come to mind,
but others may think of them.
> some user suggested:
> F R E E E N E R G Y
> "It's the simplest idea. All you gotta do, is get a couple large
> buoys, that let's say take maybe a twenty foot square space, maybe
> a foot or two thick, and they contain air, made of some strong
> plastics. You just take that, anchor it stationary to the ocean
> floor, and have it situated on a gear system where, even though the
> buoy moves up and down slightly, there is such a tremendous amount
> of force on it, through the rising of the tides, that through gear
> ratios, you could easily get some turbines going for a thousand
> bucks or something. Not a big investment to give you free energy
> endlessly. "
> Which is exactly what a university and some swedish scientists have
> managed to make. the most efficient wave-energy powerstation large
> scale.
>
Posted by George Ghio on November 26, 2006, 7:35 am
EXT wrote:
> I'm not an engineer but I can see a number of holes in this idea.
> 1. Cables can only pull not push, so the wave action will only work when the
> float is lifted. You will need a weight or spring to retract the cable as
> the float drops which means the lift action will have to work against the
> spring or weight reducing the energy available.
Incorrect. This concept is several years old now. Buoy floats, cable
attached to sea bed, runs up to buoy, over pulley and down to weight.
Gen head is bi-directional.
> 2. The lift action will only occur in pulses as the waves come in and not
> produce continuous energy. Tides occur every 12 hours, and only once which
> will not add much energy to the system.
Works on swell not tide.
> 3. The float will have to displace enough water to provide adequate lift
> without submerging.
Float is submerged.
> 4. Transferring all this motion from deep water to dry land will create its
> own massive problems.
Electricity is transfered to land, not motion.
> There are probably many other problems that do not immediately come to mind,
> but others may think of them.
>
>>
>> some user suggested:
>>
>> F R E E E N E R G Y
>>
>> "It's the simplest idea. All you gotta do, is get a couple large
>> buoys, that let's say take maybe a twenty foot square space, maybe
>> a foot or two thick, and they contain air, made of some strong
>> plastics. You just take that, anchor it stationary to the ocean
>> floor, and have it situated on a gear system where, even though the
>> buoy moves up and down slightly, there is such a tremendous amount
>> of force on it, through the rising of the tides, that through gear
>> ratios, you could easily get some turbines going for a thousand
>> bucks or something. Not a big investment to give you free energy
>> endlessly. "
>>
>>
>> Which is exactly what a university and some swedish scientists have
>> managed to make. the most efficient wave-energy powerstation large
>> scale.
>>
>
>
--
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> F R E E E N E R G Y
> "It's the simplest idea. All you gotta do, is get a couple large
> buoys, that let's say take maybe a twenty foot square space, maybe
> a foot or two thick, and they contain air, made of some strong
> plastics. You just take that, anchor it stationary to the ocean
> floor, and have it situated on a gear system where, even though the
> buoy moves up and down slightly, there is such a tremendous amount
> of force on it, through the rising of the tides, that through gear
> ratios, you could easily get some turbines going for a thousand
> bucks or something. Not a big investment to give you free energy
> endlessly. "
> Which is exactly what a university and some swedish scientists have
> managed to make. the most efficient wave-energy powerstation large
> scale.