Does this make sense????
Make a car with a windmill on top, which turns a generator or
alternator, which charges the batteries to run an electric car.
Ok, I am pretty good at putting things together, but I am no
scientist. I know that there is no such thing as free energy, and
this appears to be one of those concepts. Yet, when the car was
moving, the windmill would spin, and thus charge the batteries..
But, would the windmill slow the car down so much that the batteries
would drain whatever was being created by the windmill? Would it be
possible to even have a windmill large enough on a car? Yes, I have
considered all the possibilities that the windmill must be low enough
to pass under bridges and wires. Actually a horizontal blade setup
seems to make more sense, but that limits it to the size of the car
Anyone have any thoughts in this matter?
I'm just doing some thinking about this.....
It might work if you could deploy it when the car was parked and if you
lived in a windy area, but you would need to not use it when driving as it
would be a net negative energy user. The energy generated would equal the
energy it consumed (wind resistance) less inefficiencies in the generation
Hi Joseph - You certainly have the right intentions - trying for a
natural energy source - but I agree entirely with the previous post -
you'd be needing to 'push' in order to get a 'push' so to speak. - Wes/MO
Reminds me of a couple of guys I had an argument with years ago in high
school. They insisted it took the same force to turn a generator that
had a load on it as it did to turn one with no load. There's no free
lunch. The energy it takes to turn that windmill as the car is driving
down the road is coming from the car motor.
BTW, anybody here any more about cold fusion? I remember the 2
scientists claimed it worked, then others tried to duplicate their work
and shot it all down. But then I recall later some researchers did
find evidence that something no one could explain was going on.
Unbelievable folks, but there you have it, another example of believing
crap that violates physics. I suppose you think that a power plant
will burn the most fuel when there is no load too right? If it
worked that way, all we would have to do is keep adding more electric
demand and eventually I guess the energy would be free.
Did you ever stand around a gas powered arc welder and listen to what
happens when the welder strikes the rod to the metal.. The AMP meter
goes BOING and the engine goes VROOM! Following your logic, it would
work just the opposite and the engine would be generating the most
noise and horsepower with no electric load.
And the reason for this is very straightforward and easy to understand.
Take a magnets and try to push the north pole against the north pole
of another magnet. It takes force to do it. Now try pushing that
same magnet against a piece of wood. No force is required. In the
generator you have a big coil that is the ouptput field winding and
which is an electromagnet. With no load, there is no current flow,
hence no magnetic field. As the current increases, the magnetic field
increase, which now presents increasing mechanical resistance to the
turning shaft and hence more force is required to turn it.
Here's a better one. Use the windmill, thru a gearbox, to a
propellor which is at the back of the car to push it forward.
If you can get this to work, you have proven that the windmill
will generate enough power to make a car move forward.
And you can do this with a small model, saving time and
It's very much like sailing a sailboat into the wind. .....
( By the way, a sailboat won't sail directly into the wind, but
rather at an angle. There's a good reason for that, as I
suspect you may find with your car).......
You don't really need a windmill. You can use a very big U-shaped
tube, that swivels in the middle. If the wind is from your back and
you want to go forwards, keep the tube U-shapped, and the wind will
come in, be reversed in direction by the tube, blow backwards and
propel your car forwards.
Keep the bottom of the tube pointing back and swivel the top so that
it always points to the direction the wind is coming from.
If you want to go backwards, swivel the bottom of the tube to point
towards the front of the car.
This only takes about 3 major parts, along with some servo motors and
connections to the car's computer.
Pat. Pend. or I wouldn't be able to describe it here.
Called tacking. Hence the expression, "take a different tack" which
some scramble into "take a different tact"! As if it has to do with
different ways of being tactful.
Your windmill WILL consume more energy to push it though the air than it
will generate in electicity. Neither process is close to 100%
efficient. A windmill powered vehicle could be made which moves slowly
from energy derived from prevailing winds but not from the car's motion
alone in still air.
That's ok. If the car is going 50mph, and the windmill generates
enough to propel it at 40 mph, 40 is plenty.
If 40 isn't enough, if you want to go 60, for example, just go 75 and
you'll have enough energy to go 60.
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