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Forum Index : Windmills : Wind Powered Air Compressor

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mike4545
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Joined: 05/02/2013
Location: Canada
Posts: 1
Posted: 05:32pm 05 Feb 2013
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Hi
hydraulic heat engine, invented by Victor Fischer fischer engine

That's after you get a air turbine to run it, maybe its possible to use some heat to heat the air before the turbine.

To create the heat many devices have already been made, a simple refrigerator place the "inside" outdoors and the hot rad inside shop. Run the compressor with air motor.

And the famous "heat pump" use your well water or pipes in ground.

The Oil in a barrel trick, Simple heater Real Hot

search for: cavitation heater oil barrel
cavitation heater in action: http://www.youtube.com/watch?v=DjGSXKSLpfY

Friction Heat Space Heater : Friction heater
Friction Heater with Wood wood friction

Hope this helps.
 
steve o

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Joined: 31/12/2012
Location: United States
Posts: 9
Posted: 08:17pm 11 Feb 2013
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Hello all,
I would have to agree with you on your post, Mac. I enjoy experimenting and trying / testing new things. Not much of a TV person as I believe it is a waste of brain cells Yes, I have a windmill air compressor running so the air at this point is free. The only limitation that I have to deal with is the number of storage tanks for the compressed air. I'm playing around with the idea of using a pneumatic motor to turn an alternator or generator then using it to charge a battery. I am hoping to get 800 watts from a 1 HP pneumatic motor.

AMACK if you could find some used propane tanks to store the air in it might work for you. The Vortex tube works good but it sucks the air up quick. I know the people at http://windcompressor.com/ were looking for overseas brokers. You may want to give them a call and see if they found one in Australia. How are the winds in your area? Hope it works out well for you.

As I start playing around over the next few weeks I will take some pictures and keep you updated.

Regards,
Steve O
 
MacGyver

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Joined: 12/05/2009
Location: United States
Posts: 1329
Posted: 03:46am 12 Feb 2013
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steve o

If by "pneumatic motor" you are referring to the type of air motor that comes on pneumatic tools, that is called a "sliding vane" type of turbine. It gets its power from rpm, which strangely enough, is actually "braking horsepower" and not true "shaft horsepower" as in the case of nearly all other steam or air engines.

You'll find that you get much better results by using a piston-type or even a diaphragm-type air motor. It will have high low-end torque and will use your air supply much less than the turbine, which will power through a tank of air in seconds compared to minutes for the piston engines.

Since horsepower is merely a matter of displacement, stroke and firing pressure, you can pull enormous amounts of "power" from a small piston-type air motor by merely upping the input pressure.

As soon as my new house is built, I'll build up some examples and show them on the 4m so you can get an idea of how practical cmpressing and storing "wind" actually is; lots fewer problems IMHO.


. . . . . Mac
Nothing difficult is ever easy!
Perhaps better stated in the words of Morgan Freeman,
"Where there is no struggle, there is no progress!"
Copeville, Texas
 
fillm

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Joined: 10/02/2007
Location: Australia
Posts: 730
Posted: 12:47pm 12 Feb 2013
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  MacGyver said  


As soon as my new house is built, I'll build up some examples and show them on the 4m so you can get an idea of how practical cmpressing and storing "wind" actually is; lots fewer problems IMHO.

Mac


Well Mac we will all be waiting with anticipation, but at the end of the day you still have to turn the compressed air back to electricity if you want to make good use of it .... seems like a whole lot of double handling and introducing multipul sets of losses to end up at the same point to me . Edited by fillm 2013-02-13
PhillM ...Oz Wind Engineering..Wind Turbine Kits 500W - 5000W ~ F&P Dual Kits ~ GOE222Blades- Voltage Control Parts ------- Tower kits
 
MacGyver

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Joined: 12/05/2009
Location: United States
Posts: 1329
Posted: 08:51am 15 Feb 2013
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fillm

Were the wind not FREE, I'd agree with you here, but you have to remember one thing. "I" do this so I can run my little toy engines and blow metal shavings all over my shop into places unimaginable!

It's just a fun thing for me, but I'd bet if you built a mega-watt-sized HAWT like the commercial ones, that compressed air instead of making electricity up top the tower, you'd find it more practial in the long run and perhaps way cheaper. From a maintenance point of view, all the critical stuff can be on the ground instead of whirring around at break-neck heights.

After all, the mills around these parts (at least the ones I've had anything to do with) are only "on line" seconds at a time. On, then off, then on; it's a switching nightmare. In order to match frequency without all sorts of silicon magic, as soon as the turbine is placed on line, its speed drops off (with the added load) and the frequency drops off as well. With a consistant source of "fuel" (compressed air at constant pressure) as it were, this problem doesn't exist except at which time it runs out of air completely.

But, like I said "IMHO". The way "I" do things is not necessarily the way everyone else does or even should. It's just a hobby, mate.


. . . . . MacEdited by MacGyver 2013-02-16
Nothing difficult is ever easy!
Perhaps better stated in the words of Morgan Freeman,
"Where there is no struggle, there is no progress!"
Copeville, Texas
 
Gizmo

Admin Group

Joined: 05/06/2004
Location: Australia
Posts: 5078
Posted: 12:49pm 15 Feb 2013
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I can see advantages in using a wind driven air compressor, especially for a workshop. Its something I've wanted to do for some time.

Compressing air and using it to power tools is pretty inefficient. From a purely economical point of view, using electricity to compress air, and then using that air to drive a drill, for example, would use much much more electricity than just using a electric drill alone.

But a wind driven air compressor for your workshop makes sense to me. The compressed air is free, and the storage system is easy to scale up.

For large scale, I think the efficiency would play a big part though, maybe why its not used.

Glenn
The best time to plant a tree was twenty years ago, the second best time is right now.
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Madness

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Joined: 08/10/2011
Location: Australia
Posts: 2498
Posted: 02:08pm 15 Feb 2013
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There is a lot of research going into vehicles powered by compressed air tanks. This is resulting in much more efficient motors which might make storing compressed air a lot more viable.

Racing Air bike
There are only 10 types of people in the world: those who understand binary, and those who don't.
 
VK4AYQ
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Joined: 02/12/2009
Location: Australia
Posts: 2539
Posted: 02:53pm 15 Feb 2013
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Hi all

I have used my air compressor on 24 volts as a dump load in the past, as it draws around 50 amps it is an effective dump load.

As for the energy recovery as Glenn says air tools are very inefficient but a small engine designed for steam with variable cut off governing would do much better, but is a big contract to build.

All the best

Bob
Foolin Around
 
todd h
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Joined: 17/02/2014
Location: Canada
Posts: 2
Posted: 03:49pm 17 Feb 2014
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Steve O:
Would you be willing to contact me. I have a very interesting application of your set up and could use your insight. My email address is hudson@uleth.ca or 403-892-3031
Todd
 
steve o

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Joined: 31/12/2012
Location: United States
Posts: 9
Posted: 07:17pm 26 Feb 2014
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Hello Todd,
Sorry for the slow response. I just arrived home after a long trip. Yes, I will be more than willing to help in any way I can. Have you tried posting your questions here on the forum? There are several people here that are very helpful and knowledgeable, a great group of guys. I'll send an email to your address.
Cheers,
Steve O
 
todd h
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Joined: 17/02/2014
Location: Canada
Posts: 2
Posted: 06:21pm 27 Feb 2014
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  steve o said   Hello Todd,
Sorry for the slow response. I just arrived home after a long trip. Yes, I will be more than willing to help in any way I can. Have you tried posting your questions here on the forum? There are several people here that are very helpful and knowledgeable, a great group of guys. I'll send an email to your address.
Cheers,
Steve O


Thanks Steve that would be great. You can contact me any time and/or I can call you when it is convenient.
 
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