An idea air powered

[euromodder]

Originally Posted by dday

Yep its all been done, lets just go home and forget about trying anything else.

Definitely not.
But don't waste time and effort inventing schemes that simply can not work.

You can not transform wind power into electrical power without losing some power along the line - to aerodynamic drag, brearing friction, ...

That's fine when this power comes from wind or water, you lose some of its potential, but you still harvest energy you wouldn't have had otherwise.

But considering that the power in automotive applications comes from a rather inefficient internal combustion engine, that needs to be fed expensive fuel - any power you lose comes directly from that inefficient ICE burning energy that you already had, stored in the fuel tank.

[Frank Lee]

Originally Posted by EuroBalt

today while at school i got to thinking of how to charge an electric car without the use of gas. what if you where to take the air that normaly cools the engine and have it forced into what would be like a turbo that spools turning the generator to charge that batteries. tho i dont think this would work to well at city speeds but what do you guys think?

Actually electric cars don't get charged with gas or have engines in the first place, making the question moot.

Now, what if we had the prop alternator only activate when we hit the brakes? Oh yeah, regen braking has already been developed...

[dday]

Originally Posted by EuroBalt

today while at school i got to thinking of how to charge an electric car without the use of gas. what if you where to take the air that normaly cools the engine and have it forced into what would be like a turbo that spools turning the generator to charge that batteries. tho i dont think this would work to well at city speeds but what do you guys think?

So we take a funnel and put it where the air used flow though the radiator. High pressure. Run it across the turbo/turbine, out of there it returns to a funnel in reverse that lets the air return to the back of the car. Where there should be low pressure giving us the highest delta P we can get. Should work.

How much energy we could get, that is the question.

[Frank Lee]

You should do it and tell us.

[Ryland]

Originally Posted by dday

So we take a funnel and put it where the air used flow though the radiator. High pressure. Run it across the turbo/turbine, out of there it returns to a funnel in reverse that lets the air return to the back of the car. Where there should be low pressure giving us the highest delta P we can get. Should work.

How much energy we could get, that is the question.

Wind Turbine Power Calculator

If you had a one foot prop on top of your car you could get up to 250 watts out of it at 65mph but it would add more drag then it's energy output, if you created a funnel that it going to be a restriction and reduce your over all output even tho it's going to increase the air speed and pressure, you would be best off with a straight clean 1 foot pipe going down the center of your car and at 65mph you could, at best, get 250 watts out of that turbine, if it was a clean straight 1 foot pipe going from the front of your car to the back, turn it in to a funnel and reduce the size of the pipe and you reduce your output because more air is going to be pushed around the outside of the car, there is no way around it.
Now if you create that 1 foot pipe and left it open and empty, it would create less frontal area and less over all drag and your gas mileage would go up enough to off set running the alternator right off the gas engine.

[euromodder]

Originally Posted by dday

How much energy we could get, that is the question.

None.
You cause extra drag by having the cooling air also power a turbine.
The engine will have to work harder to overcome this extra drag.

If not, we'd all be driving around with windmills on our cars.


Drag is a net energy loss.
Perpetuum Mobiles don't exist.

[dday]

Well this guy thinks he has done it.

Welcome to John Bedini

[Frank Lee]

Originally Posted by dday

Well this guy thinks he has done it.

Welcome to John Bedini

Maybe he just needs investors to get this thing off the ground? That would be a good place for your life savings.

[euromodder]

Originally Posted by dday

Well this guy thinks he has done it.

Welcome to John Bedini

I looked at the vids of one of his so-called free energy motors.
He swirls it himself - thus putting in energy.
He can stop it rotating very easily - meaning it hardly makes any power at all.

It's connected to what looks like a battery, no explanation as to what that does.
Then that gets disconnected, "now its powering itself".
Nope, it's still rotating because he gave it a swirl.

It's pretty easy to design something that keeps rotating by itself for a long time.
Getting it to also do some work, is quite another thing.

[rmay635703]

Originally Posted by dday

Well this guy thinks he has done it.

Welcome to John Bedini

I have seen wind powered vehicles that can go into the wind, sadly they move very very slow.

The examples I have seen real life have all been
very small,
very lightweight,
very aerodynamic,

So yes by using gearing you could make a wheeled wind powered vehicle that travels into the wind, but what good is 1mph?

(oh and what you are wanting to make is exactly what I have described above, just substitute generator for gearing)