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Wind Turbines

Im designing a wind turbine and all i've come up with is a PVC tee with some pipe on each end. HELP PLZ!!!

Topic by ry25920    |  last reply


Turbine

I searched the engine for turbines and ventilators, cos in summer it's kinda hot here. And today my room-mate used a tool-box to keep the kitchen's door open, so that we possibly get sum air/wind coming through the kitchen's window and the corridor to cool the rooms of each one of us, but i guess i need an idea of a ventilator. Say, not a usual one like my ceiling ventilator that hardly compensates my comps' heat, but a kinda turbine that i can build and hook onto our kitchen's window. If i had more of them, i probably could stream the wind systematically through all rooms. (what i think about is a litle bit like water-pumps); air in these times is not moving, but you need air's movement to cool, so i have to get the air moving and a "kit" that you can build, eventually amplify to get a "bigger one" of the ventilators (for the main stream from the kitchen). I wanna stream my flat with air ! My room.mate went in a min ago and he said, i should try it in my room - sure, but i got my ceiling ventilator and that one sucks the air from abnove to push it downwards, but i keeps stayin the same air, cos it dun move it from outside the house to inside and out again. Umm, sry, i've drunk a lil bit and it was really a weird day today, so sorry, if it sounds weird. I just wanna get rid of the heat in here and wanna do my part as crafter against the condition as it is. So, if you got any idea, would be great...

Topic by Luziviech  


wind turbine speed?

i have herd that the minimum amount of wind required to power a (homemade) wind turbine is 10 m.p.h. is that true? and whats the maximum wind speed?

Topic by Sun Gear    |  last reply


Wind turbine questions.

I am asking these questions on behalf of another member who has English as a second language. He is building a vertical axis wind turbine (savonius style, I think).  The mechanicals don't worry him, it's the generator and the windings. He wants to arrange six coils and six magnets.  The magnets are going to rotate with the turbine.  He has made the coils himself - each is wound clockwise, with 100 turns of wire. He assumes (and I agree) that the magnets should be separated by 60° of the circle, alternating which pole faces the coils (S-N-S-N-S-N) and the coils should also be separated by 60°. He would like to produce 12V DC, to be fed into a battery. What is the best, or most appropriate way to connect everything to achieve his goal? Links to sites that he can examine (and/or translate) at leisure would be nice.  Or sites in Turkish. (I suspect that Picoturbine documentation would help, but it's in long English.  Still, I've added it to the topic in case it is of help.)

Topic by Kiteman    |  last reply


Wind turbine placement?

I live in a rural area and we have two blue Harvestor grain silos. One has a 25 foot diameter and is 90 feet tall and the other is 4 feet from it with a 20 foot diameter and is 70 feet tall. I was wondering if it would be possible to mount a wind turbine on top of the taller one. I don't know much about turbulence though, if there would be too much? Or how high it would have to be off to clear the turbulence? This is my first try at it, I was going to try a treadmill motor, something small

Topic by technic6490    |  last reply


Wind Turbine help?? Answered

Okay, so I'm making a small Wind Turbine to charge a couple of Rechargeable AAA batteries. But my problem is that the motor I'm using only generates voltage when moving clockwise and one of the fin designs I'm using spins it counterclockwise... So I tried a VAWT designs and it spins it clockwise but not very fast... I'll post pictures so you can see the designs. Thanks!!

Question by Zem    |  last reply


Dinosaur wind turbine

I am in Kenya and being of a technical persuasion have been asked to fix this geriatric wind turbine. It is an electromagnet (as apposed to permanent magnet) based generator that my friend bought from the Italian scouts. I cannot for the life of me get anything more than about 3V from it. Has anyone ever seen anything like this before and if so have any idea where on earth I might be able to find out a little more about who made it or how I might be able to fix it. I have tried everything I can and still no cigars. Any help much appreciated. I am here setting up this organisation if anyone is interested access(hyphen)wind(dot)com

Topic by accesswind  


Wind turbine to charge batteries

I have a solar electric system with a battery back up for power outages.(it is also grid tie) I would like to add a wind turbine to charge the batteries in extended outages with no sun and hopefully wind ( we normally have low wind but storm outages have lots of wind). The batteries are 12 volt connected in series to produce 48 volt. Can I, should I, get a 48 volt turbine and connect direct to the batteries or some other voltage and go through the inverter like the solar panels do and if so how and what voltage turbine?.. Chris

Question by papabear911    |  last reply


diagram/information for wind turbine

Can any one point me in the right direction please. i'm building a mini wind turbine but i'm not sure what do do with the electronics side of things. for example: 1, how to charge a battery - (when i connect the battery it powers the motor! i dont want this,) 2, how to prevent over charging thanks zac

Topic by bede123    |  last reply


ceiling fan wind turbine

I am in the middle of building a ceiling fan generator/wind turbine.  I know that the electric current produced is AC (I think it's 3 phase...it has 3 wires coming out of the fan). I do not know electricity that well, and am learning as I go... I would like to use the wind turbine to drive a small garden water fountain pump that is 120 volts.  What do I need electrically to complete building this wind turbine? Does anybody have any suggestions on resources on how to connect such a device electrically?  (Do i need a diode, rectifier, ???)  Does the voltage produced by spinning the generator have to equal the volts required by the device ( small water pump)?  Thank you for any and all help as I'm trying to learn and hopefully complete this wind turbine by summer.

Topic by Jesusistheway    |  last reply


Axial Flux Wind Turbine

24 pole, 3 phase alternator. 18 coils of #20 wire 80 turns each, 6 coils in each phase connected in series, then wired 3 phases in star config. Put out lethal voltages at a very low rpm. Using N45 2" x 1" x 1/2" Neo Mags, two discs of 24 each attracting each other through coils. I need to know what the number of turns would be for #13 wire, same configuration for charging batteries.

Topic by dna11207    |  last reply


AC Motor to Wind turbine? Answered

Ok Yes I know that It has to be DC for it to work as a generator. But I found a fan from Dads greenhouse and its rather larged, used for air circulation. Is there any AC to DC fix? Any rewiring or turning the coil around? Any help or suggestions would be of great help.

Question by CrawdadMan    |  last reply


Wind turbine! Gear motor?

I'm thinking of making a VAWT and saw a 115v Bodine gearmotor for $30. Been looking all over for the popular Ameteks. Are gear motors feasible?

Question by fifh89  


Apartment Wind Turbine ideas

Hey all. I would like to gather opinions on 2 small wind turbines I'm thinking of constructing. Difficulty: I live in a third floor apartment (it's also the top floor). My first idea was to modify an old box fan and mount it outside my window. Then I walked into my bathroom, which has a noisy exhaust fan in it. I accidentally turned it on and realized that I could build a collapsable darrieus turbine that would fit up the exhaust vent, expand when outside, and hook that up to the exhaust fan motor already in the vent. Does this sound feasable? My goal is to see if I could charge a cell phone from the power generated by one of these two options. apologies for the quick-n-dirty sketch below.

Topic by Greenline    |  last reply


Question on wind turbine design

Are the poles on the top face of your magnets or at the ends? The former arrangement exists in circular disc magnets and the small bar mags used in brushless motors. You may find that you can get more coils in your motor by winding multiple winds around a piece of stiff plastic. Similarly with disc magnets, alternating N/S with a smaller gap between them you may have more magnets and more coils. Also in many hobby brushless motors, the gap between mags and coils is small, 1-2mm. Do you have the mag coil arrangement on both the top and bottom? I am assuming that you have centering bearings top and bottom, but do you have thrust bearings? These are cheap and are simply balls in a nylon ring at the cheapest end of the market. You would have to sandwich these between big washers or metal plate. I think if all of this was done, the efficiency and output would increase. Dave

Question  


Wind Power?

Rather than charge batteries, can an inverter be used to run the power from the turbine to the grid?

Question by Hubiewan    |  last reply


A different kind of Turbine

Check out this new design for a wind turbine.http://news.bbc.co.uk/2/hi/science/nature/7827044.stm

Topic by Yeasayer    |  last reply


Wind Dam

Architects and designers Chetwoods have proposed building a wind dam. A giant sail would funnel air flowing through a canyon into a wind turbine to generate electricity. The pictures look unreal, even for CAD models, but the idea is pretty cool. More here at Inhabitat and Ecotality Life.

Topic by ewilhelm    |  last reply


wind generator ?

Has anyone had experience in using magnets to help propel a horizontal wind mill or vertical wind turbine .what I mean is putting them in a circular series where the north propel against the north creating , forcing or helping the windmill to move in a circular motion?

Question by junkyardenergy    |  last reply


Parallelized Wind Power

This started as a blog post on Make http://blog.makezine.com/archive/2008/05/parallelized_wind_power.htmlIt was suggested to head over to instructables and get some stuff going here and it seemed a good idea. Also, in the meantime I found (of course) a bunch of cool wind projects here (about 20). I really like the vertical Savonius turbines. I wonder if those could be stacked with a similar effect?I've been wanting to do a wind power project for a while, and it seems like a good one to work on with others. Here's a brainstorm to kick things off. Please add to it or suggest alternatives problems etc.- total parts cost < $200- leverage off the shelf parts as much as possible. - little or no machining.- over 100 watts, (ideally 300-500) (this could be totally unrealistic with a $200 price, not sure yet)- usable in small yards, urban roof topsThe guys who made the original did some research for a grant and the paper is available here: http://www.speakerfactory.net/TURBINES/GRANTS/Selsam%20EISG%2002-18%20Final.docAlright. Hopefully this is enough to kick off some discussion and gather up interested parties. I think the first step will be to tack down goals and solidify a general approach. Ideally in the end, we can come up with a good parts list from a minimal number of sources, and an instruction set that's relatively easy. A group might also leverage some purchase power by getting some of these parts in bulk (ie. a whole bunch of airplane props). Tim

Topic by timothy    |  last reply


Building a Wind Turbine for the first time

     I'm building a wind turbine for the first time and I want to share my progress and chat with people that have done the same type  of thing.       I'm a member of many different forums online and I value the information I pick up from them a great deal.  (OK here comes the question) I've been looking for an online community of people that share this interest (residential wind power) but I'm not finding any large groups,  or a central hub of knowledge. My question is ,  Does any one know of a large high traffic wind turbine forum ? My Googlefu seems to be weak in this area :(

Topic by 00MrNotWrong00    |  last reply


Wind Turbine from a cordless drill?

Hi guys i have come across an old 18volt drill. i connected it to some small pvc blades about 12 inches long in the hope of generating some small amount of power. Pointed it into a reasonably stiff breeze but the blades wont turn due to the gears of the drill. Anyone out there got any ideas on how to make this work.  is there any way to free the gears so it turns easier or any advice on what size blades would be required to turn the motor. Any suggestions would be appreciated. sam301

Question by sam301    |  last reply



Verticle Axis Wind Turbine Materials?

I've been working on a vertical axis wind turbine that uses uses 3 identical helical blades positioned around a central vertical axis. For small working models I've been using 16 gauge wire and cardstock. I'm looking to build one with 6-8 foot blades. The trouble is finding an ideal material for this. It needs to be lightweight, cheap, flexible, "malleable" (it needs to be able to be bent into a helix but then retain the shape), and come in a 4'x8' sheet. PVC/CPVC is super expensive, as is polycarbonate, and aluminum. Any suggestions? 

Topic by FLskater3696    |  last reply


Maintaining a stable voltage on a wind turbine?

Every couple weeks a new instructable comes up on some green energy thing or another, but one I am really interested in is wind.  The problem I see is that with wind ranges from 5 - 25 mph, the voltage change is extremely problematic.  When I see people putting permanent magnets on alternators for use with wind, it seems ridiculous.  Even if you are using an inefficient battery-storage off-grid system, you still need to maintain 12-15 volts to charge your battery, and an alternator is made to do that by varying the magnetic power.  Now I understand the extremes of a alternator's voltage regulator are likely fairly narrow, but still quite useful in generating wind energy.  What I am looking at is 3-5kw of grid-tied power.  This is great and all, and possible in for me, but I don't see how I could maintain a stable enough input for it to work.  Most inverters are for solar power and aren't grid tied. The next most common are grid tied solar which take 12v DC and scale it to 115 ac across three phases.  Finding a grid-tie 5kw 3 phase in and out ac grid tie inverter is extremely hard, but not impossible.  The only thing that is impossible is finding one that can handle highly unstable voltages.  So the options I am left with are using a variable transformer to bring the wind power down to 12v and then rectifying it, then pumping it through an inverter which leaves me with 70 - 80 % of the original power.  My other option is to, like a car alternator vary the rotor voltage to maintain the desired end voltage.  The one problem I see with this is that there is a large amount of potential energy not tapped.  For example lets use 1 as the relative output as well as the input to generate a magnetic field.  If the speed is 1 then both in and out are 1.  If the speed is 2 then the in will be .5 now the out should stay at 1.  But if the in had remained at 1, then the out would be 2 so essentially you are losing half of your potential energy.  This isn't a problem in cars because they aren't tapping the maximum power possible. All the time, they don't need it.  This is a problem with wind turbines, so is there a way around this?  What wold you recommend to do for grid-tied wind power.

Question by jj.inc    |  last reply


LED light from wind turbine

We are playing around with various basic LED lighting from a small wind turbine and have a couple different ideas about how to build.  But we are wondering what the voltage range LED lighting can handle?  Even a small turbine can create a wide range of wattage based on the speed of the wind, at what point are we going to be doing damage to our lighting?  Do we need to come up with some sort of wattage dampener/regulator between the generator and the lights?  Simplicity is key in our design.

Topic by Two Paddles Design    |  last reply


Test meter for wind turbine output

Is there an inexpensive meter I can hook up to my 300W 12VDC wind turbine ?I want to see the output power in watts increase as it spins faster. I know it needs a load to test that.I know I can use 1 or more 12v bulbs to see them get brights. But I'd like to see the output in watts.Thanks

Question by maxrep99    |  last reply


12V DC Motor Wind Turbine

Hi im trying to build a wind turbine.The purpose of the wind turbine is to determine the maximum amount of power it can produce with different loads. It needs to produce at least two watts of power during testing, I tried using a potentiometer but it started smoking. I need to record voltage, current and power. I needed to know how to set this up, and if I can use resistors instead of a potentiometer. I have power supplydmmresistorsblade12V DCWires

Question by hj212121    |  last reply



I wish to make vertical wind turbine for 6kW generator, any suggestions about wings for it ?

We are trying to make wind turbine, to pace it on the roof, could be few of them, but reasonably big, if you know what i mean. Thanks

Question by azdanovica    |  last reply


wind turbine- I need wiring help

Hey guys,  I decided to make a vertical wind turbine out of materials I had laying around in the garage/shed.  I found everything I need; old bike, pvc/dryer exhaust pipe, old dryer motor.   I wanna make something along this concept.... https://s-media-cache-ak0.pinimg.com/236x/b6/c1/cd/b6c1cd7b76e82cef51fefdfa4f62bfcd.jpg the wind turbine would be chain driven from the sockets on the bike wheel.  I have the whole concept of the turbine drawn out and ready to go.  But when it comes to the wiring on the motor im stumped.  If someone could help me, that would be awesome! I found two motors, here are the links to them.   http://www.ebay.com/itm/Maytag-Washer-Motor-Clutch-6-2016660-16-S68PXGCN-1002-201807-12002353-/181947664075 http://www.ebay.com/itm/Genaral-electric-DRYER-MOTOR-5KH26JJ064S-/281776789034

Topic by aminnich    |  last reply


3 phase bldc motors as a turbine. i am quite confused on how to determine which leads to us or how to configure them.

Ive got some electrical backround but dc seems to be where i get lost.  these motors i have were used in some sort of factory.  the motor has three leads and a ground. any help would be greatly appreciated

Question by jeffbaker81187    |  last reply


what electric motor has the least amount of drag and can be used to generate 15 watts at 200 rpm @ 12volt? Answered

I am building a mini wind turbine and im sourcing a generator (not a diy one) that produces 15 watts at 12 volts @ 200 rpm? any ideas?

Question by Burnr    |  last reply


Will solar power controllers work with wind turbines? Answered

I was looking at solar power controllers and I was wondering if the would function properly if i connect a wind turbine made from a stepper motor to them. The solar controllers I were looking at are on this page:http://www.bgmicro.com/index.asp?PageAction=VIEWCATS&Category;=395

Question by carrierpilot1357    |  last reply


What is the best soft iron disc thickness for 22mm x 3mm disc magnets

Hi, I am building a wind turbine with 12 , 22mm diameter x 3mm thick magnets on 6inch diameter soft iron disc and 9 coils on a wooden stator? Is the thickness of the soft iron magnet discs critical? Is 3.5 mm too thin or 10mm too thick?

Question by bulbwatt    |  last reply


Using a fan to drive another fan

Hi all, This may very well be a stupid question but after a quick bit of searching I cannot find an answer (which probably means it is stupid). I have been thinking about setting up a wind turbine to generate some electricity for my home. It occurred to my that it would be good if the wind turbine did not rely solely on the wind from outside so I started thinking about using another fan to blow air into the fan or fan used to create the electricity. Does anyone know if this is possible? I guess what would be ideal is if fan A was powered by the electricity produced by fan B but fan B also produced a little extra electricity that I could syphon off. This could then easily scale up to produce more power. [ fan A ] ~~~~~> [ fan B ] ~~~~~> electricity I suppose if fan A takes more energy to run than fan B can create then it won't work. Has anyone looked into this?

Topic by _chris    |  last reply


Wiring Multiple Turbines and PVs

Just a little worried... how do ya'll go about wiring multiple power sources together? I have been long under the assumption that your solar array will only put out power of the weakest panel. If I come across 3 different 12v panels, that have differing amperages, and have a wind turbine on a 12v car alternator, that ranges in power output, how can I wire these to make these most effective? Is there a charge controller out there that can manage multiple power sources? Pardon me if this is stupid. I just cant seem to get off the ground with these simple questions. i guess the most effective q to ask is: What do you do to wire multiple power devices of different outputs into a single battery bank/ grid tie system? Thanks so much for all yall's brilliant help. -Luke.

Topic by ineclipse    |  last reply



Tiny Wind Turbines that Could Power a Home

Everybody wants to have a cleaner Earth, but few of them take any actions. One of those people is Doug Selsam, who designed high-power wind turbines that can generate enough energy to power a home. The wind turbines measure about 14-18 inches in diameter and they can generate an impressive amount of 200 watts for a 20 mph wind, but the wind turbines could do better if the winds are stronger.Selsam's wind turbines are made of high-strength carbon fiber materials which give the turbines the possibility to be hooked as one. This system is very simple and it weighs a bit, as you see, it can be held in one hand. For the moment, there is no word about release date or availability, therefore I can only say that it's an interesting conceptOriginal Link (via Device Daily)

Topic by Keith-Kid    |  last reply


Can a wind turbine be used to heat a greenhouse?

Hello everyone, just a question to get some ideas. My partner wants a year-round greenhouse. We have the greenhouse ready, but need a way to heat it.I've been reading all the wind power ideas, and I think that will be perfect. My questions is:Can a wind turbine be built with a controller that will power a heater in the green house? If the wind stops, the heater would stop. When the wind blows to start the heater (minimum load) the heater would turn on.Any ideas where to start?Thanks,Jeff?

Question by jjmorris100    |  last reply


Since the whole unit turns 360 degrees, how do you keep the wires from getting tangled up ??

I did not see any set up where brushes are used to carry the current from the generator to the stationary unit (Batteries, inverter, etc)

Question by kawa1    |  last reply


coils?

Im making the alternator with the 12 magnets, i know that it normally uses 9 coils,I would like to know if I can use 12 coils with the 12 magnet set up and it will be 3 phase but with each phase having 4 coils. I know the wire set up for the star with the 9 coils ,what would it be with the 12 coils. Thanks John

Question by conntaxman    |  last reply


How to test the power output on a wind turbine?

I'm on a team prototyping a water filtration system powered by a Savonius wind turbine; the energy from the spinning turbine is mechanically transferred to a reverse osmosis filter/pump setup. We're doing tests of various blade configurations and are trying to determine the power output by hooking up a small DC motor (1-3V, 5000+ RPM) to the shaft. We're seeing only mW outputs though and were expecting something significantly larger. How do we pick a motor for the job? Do we need to match the RPMs of the motor to the expected RPMs of the shaft (~150)? Any other ideas for testing power? Thanks for any help!

Topic by moisture    |  last reply


VERTICAL AXIS WIND TURBINE FEASIBILITY HELP

Guys need help to realise its feasiblity and pros & cons. This project will comprise of a renewable energy source which is controlled by TI msp430 controller by closed loop system. This renewable energy source will use a magnetically levitated vertical axis wind turbine with single phase permanent magnet alternator made by our team. There will be 3 stationary wind guide vanes/flaps of concave shape on the outer periphery of turbine. These vanes will be controlled by dc gear motor for constant wind flow and protection against high speed winds. Using perturb & observe MPPT algorithm on DC-DC boost converter, constant DC voltage for GRID integration is made. A lower energy Bluetooth module will send data on user computer about whole system parameter, hence making the whole system to be smart and hence data is saved in database. https://www.youtube.com/watch?v=fC5hYLjhO9U

Topic by nitcool    |  last reply


Wind-powered phone-charger

Here's one for the tower-block dwellers - a wind turbine you stick to your window. On the inside, you stick the matching base-station, and the set uses electromagnetic induction to transfer energy from the spinning turbine to the phone in the charger's cradle. It's a neat idea, but I don't know if it's a real product - I tried tracing the links back, and ended up going round in circles in the blogosphere. What I am sure of, though, is that somebody reading this has got the skills and motivation to build their own version.  You don't need to use the same design of turbine blades, and it's up to you how it sticks to the window (suckers?  magnets through the glass?), but I bet you can do it. Just remember to post an Instructable. Traced back to Yanko Design.  Originally seen on NOTCOT.

Topic by Kiteman  


has anyone considered a DIY design for a weather baloon wind turbine Like the Mars wind turbine?

Hi the mars windturbine seems to be a simple idea take a weather baloon add fins allow the baloon to spin bottom over top and connect generators and cable to the ends. It has a stableiser in the center. It would almost make sence to make one by doing. What are good recourses for that? Where can I find more information on it? Here is the link to the MARS turbine site. http://www.magenn.com/

Question by josheeg    |  last reply



variable output dc water pump for a wind generator

I'm interested in figuring out how to direct the energy produced by a wind turbine into a water pump. My goal is to pump water from a river to the top of a hill into a pond. then slowly release it through a variable water turbine so that the pond serves as a battery. i've seen pumps that work with the power take off(PTO) of a tractor that could be retrofitted if i had the right dc motor. i need to figure out what motor might work and what type of contolling i would need. also would it be better to use several smaller units that engage one at a time as the power input increases to keep the pumps closer to thier ideal operating range? The (PTO)water pump i saw operates between 17-23 hp or 20kw or less, which is perfect because the turbine is 20kw. the other thing is what if the pump operation starts at 17hp(?) then most of the power would need to be directed somewhere when producing less. maybe a series of different sized pumps and a controller to determine which pump(s) to engage to get the most water pumped.

Topic by steve34    |  last reply


powering turbine generator using a fan

Using a fan; can you get more output to power a turbine generator; using a large cog (like a star on a bicycle wheel).To power a bike you have a large star in the front and a small one in the rear which generates more power. So can you do this to power a turbine generator using a fan?   

Question by mannymanster    |  last reply