Electrostatic power generator: How many Watts/Amps is it possible to put out with it ?

I would be interested in knowing if an electrostatic power generator can be used instead of an electromagnetic one inside a wind turbine for example to generate electricity.
That would save the cost of magnets and copper at least ..
Thanks.


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rickharris5 years ago
No.

By it's very nature the current available is actually very low although the voltages generated may be high.

This high voltage in itself will give problems with insulation.

Static generation is very prone to damp weather as well.

So sorry no.
gabdab (author)  rickharris5 years ago
I come from a forum thread where they mentioned  electrostatic alternators as for 2MW at 0.325Hz rotation for a wind turbine (Enercon's E82) : 
http://www.physforum.com/index.php?showtopic=26432
I am interested in a smaller version (~ 5 kw ) but I didn't manage to understand the schemes so to adapt it to my needs .
Engineers are not stupid people. You have to ask yourself "why has no-one taken the obvious idea of making an electrostatic generator and made a big one, when we were all exposed to the duality of electrostatics and electromagnetics in our university degree work ?"
it is true Engineers are not stupid , an yes they understand electron theory very well an it is the bases for all circuits use today , performed in an close path systoms that rely on tranverse Em waves .an neutralising a dipole to get work done (hence killin all protenial in the circuit,an having to start over, .they dont teach in schools is open path circuits of longitudal electrostatic presure waves threw the neutral flux(or uni directional currents of high protenial ) that show no emf an no current ,an dose not ever neutralise its dipole ,an western engineers dont have a clear understanding of this if any at all ( . an the fact that people like ur self an conventional scientists keep refurring to the science of (tranverse )electron theory an the use of electron currents in close path circuits an laws spawned from devices of measurement based on it .an them using it to tryin under stand or to explian away a science that has nothin to do with our modern day science of close path systoms using electron theory (so to speak coz ) clearly shows that they havnt a clue wat they are talkin about when it come to longitudal electro statics.""
Clearly you can't spell, or put together a coherent sentence. Leave it for the big boys.
gabdab (author)  steveastrouk5 years ago

Google: rare earths china monopoly .
As China influences rare earths market I guess magnets prices are subject to their directional control ..
Neodymium magnets and copper are preatty expensive these days .
There's no such thing as a rare earth. Google that.

There's PLENTY around, but when the Chinese were giving it away, everyone shut their mines.

You'll find people are scrambling overthemselves to reopen mines all over the world. In the UK alone, we have enough "rare earths" to satisfy at LEAST all of Europe's requirements, and a lot of that is in mine tailings from the extration of tin.

Copper isn't expensive at all. Its what you do with it that costs.

Steve
+1 - It's easy to confuse the street price with the base cost. In general the world has little shortage of basic resources.

Even less if they start to mine the landfill sites where we buried so much in the past.
gabdab (author)  rickharris5 years ago
Trying to reply to all:
1) This high voltage in itself will give problems with insulation.
That might be a problem , but we deal with high voltage a lot today , just thinking about power lines,

2) The Enercon & Itaipu generators aren't electrostatic,
Good to know :)

3) Samsung have a radically new magnet technology that needs NO "rare" earths.
Wonder why they choose that solution if there are no worries about monopolistic behaviours ..

4) Copper isn't expensive at all. Its what you do with it that costs.
There might be an easy way to self build enamelled copper wire from raw copper.
The 'basement fusion reactor guy' knows how ..

5) In general the world has little shortage of basic resources.
Depending on how much of an animal behaviour drives our economy , yes.


None of this validates "electrostatic" woo-woo.

Steve
Big wind generators don't use neodymium magnets.
Samsung have a radically new magnet technology that needs NO "rare" earths.

Steve
lemonie gabdab5 years ago
The Enercon & Itaipu generators aren't electrostatic, so there's something wrong with that post...

L
At a quick look I still doubt the veracity of the information.

A static machine by its nature generating electric charge by friction is limited to how much charge can be stores on the collector.

The answer to this is to store the charge in capacitors (usually Leyden jars) Then you can draw from this store of energy.

To produce Mega watts or even a more moderate energy level is going to take a LOT of generating surface, A LOT of capacitive storage (it will be VERY BIG).

At 62 million volts p - p as quoted in the link you have a chronic insulation issue.

+1
rickharris5 years ago
I am not sure where your going with this - The bottom line is that static electricity isn't going to provide the current flow you need for a power generating system in any realistic size.

If it worked - It would be done. The technology is well understood.

Static= High voltage at low currents.