How do I convert wind power or wind energy into heat?

I have access to a huge piece of windy  but south facing land,  solar gain will not be sufficient for heating green houses, barns, ect..., it is very cold and at high altitude (about 6500 feet). 
Strong wind blows all the time.   How do i turn wind into heat and bank that heat as inexpensively and efficiently as possible.   space needed is no issue  the property is a half mile wide.  




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nfarrow7 years ago

First of you need to check how much energy is being product from your windmill. Second it all goes back to Ohm's Law. The more resistance, the more power is wasted as heat, and in this case heat is what you want. “Nichrome Wire” is the best type of metal for your “heater coil” Some examples of this metal are toasters or cigarette lighters. When creating the coil you will have to guess about the right length of wire. too short and it will get so red hot it burns through and too long and it won't get hot enough (higher resistance = less power flowing). The nichrome gets so hot that it would burn off any insulation. I would try to find someone who can get there hands on some scrap pottery. Toasters and big power resistors use ceramic spacers.

ztevo (author)  nfarrow7 years ago
I like the idea of the Nichrome Wire,  asuming i keep the voltage low could I intall the wire directly in insulated tanks of water or is the wire easly coroded,  whould I be inadverantly creating hydrigen and ocogen turning my hypothetical seeled water tank into presure bombs fueled with volatile gasses,  if I generated ac current I believe i could eliminate the gas production,  but then i do not know if DC power would separate hydrogen and oxygen unless the nichrome wire corroded,  and forced the water to act as a conductor. 

Do you guys believe converting wind into electricity is the most effective way to get heat from wind?  Does anyone have thoughts on converting the wind directly to heat eliminating the energy loss caused by converting wind to electricity and electricity to heat,  say a mechanical system the created heat via friction or high pressured air. 
I suppose that it could theoretically work to drop a rotor from your windmill directly into a submerged metal pipe, and use the rotor to create friction inside the pipe, thereby generating heat to be transferred into the water. Sounds potentially very lossy to me though, and I'm guessing that it would also be very noisy and require lots of maintenance, too.
ztevo (author)  RavingMadStudios7 years ago
that makes me then think of something like this
http://www.youtube.com/watch?v=yh_-DUKQ4Uw

its a piece of metal with holes in it that spins rapidly in a cylinder, they claim it creates steam and heat by the way it trashes and compresses water,  though it appears to me that it just creats lots of metal on metal and water on metal friction.

I;m thinking very small scale something that provides just a little heat not steam.

the simplicity of installing heater coils directly in the heat banks does seem hard to be though. 

you already found it i see..

any progress meanwhile/

?

Until they claimed over-unity, I could see how it works, its not a bad idea, taking mechanical effort and heating the water by working on it, worth a try, if you only want hot water, and you can run fast enough.

Steve
ztevo (author)  RavingMadStudios7 years ago
? what about running a rotor into the tank and have the rotor turn magnets inside  the tank  with the coils configured as provide Ac to eliminate the production of hydrogen,  and connect the "generator to nichrome wire submerged in the tank,  Or would i even need wire if the magnets and coils are submirged in the tank,  could water provide bothe the connectivity and the resistance?

Do you guys and gal think that i will loose more energy via a shaft of a long piece of wire?

Your idea of running a rotor directly from the the wind mill into the water tanks would make installing VAWT wind turbines directly onto the roofs of the green houses a possible option.


Thank you for the help,  please keep the ideas coming.  I will post results from my experiments on this page.


another thought does pressurizing water generate heat the same  way heat can be generated by pressurizing air?


You can't pressurise water in the sense you can pressurise air and make it heat up, because you can't actually do work on the liquid.  The "pressure" in a pipe is hydraulic. Lock a pipe up with NOTHING but "high pressure" water and then release it. What happens ? Nothing.  
nfarrow nfarrow7 years ago

 For storing the heat try some kind of water heater set up. But I think your best bet would just to make some kind of battery bank and then use convictional 12v/32v DC heaters.

ztevo (author)  nfarrow7 years ago
An electric water heater plumbed to the water or rock filled heat banks , or to radiant heat water pipes in sand or concrete floors would be a very good off the shelf solution.   I am trying to avoid the need to controle the power by having to use as bateries on inverters,  I am intrigued by the idea of running alow current directly form the wind generators direction to heaters coils located in the water or stone filled heat banks.  i am trying to keep this as simple yet efficient as possible,  temperature could be controlled pretty easy using mechanical thermostats to open vents.


ztevo (author) 7 years ago
WOW look what I found,  I am trying to recreat something made hundred of years ago by Joules,  this should be at least 5 % more efficient then first converting the wind energy into electricity,  i think

cr4.globalspec.com/comment/184585/Re-Heating-Water-Through-Friction

that is maybe the first of what later became a steam/ hot water generator with over-unity assumptions.. of welk i cannot confirm.. the principle is pretty straight forward.. and mounted under a long axel with a vowd on top would give you almost zero loss ..

https://www.youtube.com/watch?v=20X4A3S0It4

Convert to electricity, and use to heat that way ? 
Pretty much.  You're going to have to use a generator, batteries for storing the extra electricity, and heaters.

As far as storing actual heat, you might want to look into thermal mass heat storage walls and floors (fancy talk for materials, painted black, that store solar energy and help insulate) for a greenhouse and insulation generally for barns. 

Do you keep large livestock?  If so, you can also look into the "ancient" barn/home designs where livestock lived in essentially the same space as people for sharing heat given off by the large livestock and protecting them from the cold in the same stroke.
 
I'd be inclined to have some of those BIG polythene orange juice shipping containers - the ones that hold a couple of thousand litres, and run heaters in those. The amount of heat you can store in water is phenomenal.

Wish I had the space for the resources :-(

Steve
I think I'm a wimp cos water and electricity scare me, but you're absolutely right.  You could potentially skip the batteries if you were able to rig that, but then you might be able to skip the windmill entirely if you collect heat in the water just from sticking it out in the sun and insulate the buildings that way - like a 2-3' wall of water which is pretty intriguing.  Thoughts?
 
ztevo (author)  AngryRedhead7 years ago
Tradition solar green houses  with thick walls and solar gain are key, but the average temperatures are so low (plus the heat being stole do to high wind speeds) that even if I was able to capture all the heat generated by the sun it would not be enough to keep the green houses warm enough.  The commercial hothouses in the area use natural gas to provide heat. My problem arises from the fact that the  area were this is to be constructed is far from existing natural gas lines i could have propane tanks installed but I  am trying to take advantage of the natural resources available to me, while polluting as little as possible.  (bio-digesters for animal waste fall outside of zoning regulations on this property so bio gas is not an option)
The windmill'd be pretty low voltage, so I wouldn't worry - I'd be happy to bury the elements directly in the water I think !

Water wall ? Not sure, you could use a Trombe wall, and have the water tanks in the room to moderate the heat.

Damned big tanks of water scare me, because the pressure in the bottoms is pretty hard to restrain. 
I hear "voltage" and it translates into "instant death" regardless of modifiers.  :-P

It could be a crap load of water jugs  "cemented" together in some crazy way or at least that was what I was thinking of - water jugs as "bricks".
 
.  I agree about using water for heat storage. At that altitude, you probably want to mix in some antifreeze, for when the system is down for maintenance.
.  If water is not readily available, rocks should do a good job (and not require freeze protection).
.
There's 202 US gallons in a cubic yard (a pretty standard-sized shipping container) and 2000 liters = 264 US gallons, for those of us in The Colonies.
ztevo (author)  NachoMahma7 years ago
Some types of antyfreeze have anti corrosion additives, that could help keep the heating elements form corroding.
ztevo (author)  AngryRedhead7 years ago
I am trying to keep the cost as low and efficancy as high as possable,  eliminating batteries would save a ton of money,  thermal mass would be key I think in banking the heat.

Thank you for the reply