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 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 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


Make my own turbine or....?

I'm going to be building a charging station for my laptop, cellphone, ipods. I got the idea from the S.P.R.E.E. article but I want to incorporate a wind turbine into the system. I'm struggling to find a turbine that's small enough, or even a permanent magnet DC motor. Am I missing something or would I have to make my own DC generator? Thanks in advance!

Topic by egoods   |  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 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


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


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


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


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 



how do i use a savonius wind turbine made from 200w electric scooter motor to charge 12v sla battery?

 the turbine is to charge a battery the battery will the run 2 12v caravan lights in a hut in the woods I am not electronically minded so you need to put the answer into laymans terms please many thanks 

Question by venator   |  last reply


Magnet strength for DIY VAWT

Hi, does anyone know if it is better to get stronger magnets for a DIY turbine? Is it always better, or only to a certain degree?

Topic by elmejor06   |  last reply



Has anyone made bamboo wind turbine blades?

I started a set of simple bamboo wind turbine blades today. I'm using instructions for PVC pipe blades. This involves slicing up a plastic pipe (vinyl chloride is carcinogenic) but large bamboo is similar to a pipe and I've got some so why not try this natural material. If you have done this before, please share some insight :) To my knowledge nobody else has posted about this and all I've found online about bamboo blades is from large scale commercial turbines.

Question by snotty   |  last reply



I have several large swamp cooler rotors, would these make decent VAWT rotors if put directly onto an old alternator?

Sorry, I should have said Centrifugal Fan rotors, they are commonly seen in use with car air conditioning systems, leaf blowers, and evaporitive coolers (Swamp coolers). I'll see if I can find a picture or a video of them in use after I get back this afternoon.

Question by Karred   |  last reply


How can I combine a salvaged auto turbocharger and a generator to make electric power? Answered

I am considering a hybrid engine for a golf cart.  I want to take a salvaged auto turbocharger as a base, use "alcohol" for fuel, and generate electricity for the electric motor of the cart.

Question by hardlec   |  last reply


I need Magnets arrangement for a wind power using car alternator N42 (20x10x2.5mm) magnets are glued on modified rotor ?

Hi all, I am modifying a car alternator to a PMG .The winding system is 3 phases the diodes are still connected to have a DC voltage and the rotor circuit has thrown away. The rotor have been machined and a steel pipe is weld on it to adjust the diameter.On the surface of the steel pipe I glue the 14 N42 (20x10x2.5 mm) magnets N & S pole alternately to have 7 pair of N&S poles.The number of poles is 14/ph.I am not getting good result at 1150 rpm it gives 15 volts & at 1450 rpm --> 20 volts.But i need around 15 Volts at 300 rpm how could I get it? Please advise magnet arrangement note that gap between magnets and stator is about 2mm. Hasen

Question by hasenbaksh   |  last reply


How do I connect a wind turbine to a battery bank through a 1N1190A blocking diode?

Diode I have is seen here http://www.reuk.co.uk/40-Amp-Blocking-Diode-1N1190A.htmI am building the "Chispito" turbine, but I don't have the blocking diode they recommend, I have this one.

Question by groundhog593   |  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


When I see generator construction they usually suggest 1 stator and 2 rotors.

Most show 1 set of coils with magnets on a disc on each side. How would 1 rotor ( with magnets ) and stators ( with coils on ) either side of it compare? Just to be clear the magnets rotate.

Question by buteman   |  last reply


Is it possible or make sense to run an AC wind generator directly into an electric heater ?

I was wondering if it would be possible to run an AC generator directly into an electric heater or water heater instead of using a DC generator to batteries. If this is possible or if makes sense to do, what would be the best motor/generator to use with a VAWT system. TIA.

Question by dans123   |  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


Looking for a Step by Step DIY Instruction with images to make a Wind Power Small Turbine

I am searching the internet to find DIY plan to create a Wind power small size 3 blades turbine to run my computer.I found the https://www.instructables.com/ and some videos but all the videos are incomplete or simply lack vital information.I am a novice.Please help me to build my very first (3 blades) and small wind turbine. I need help from this forum.Please share DIY plans or step by step instructions to build a wind power turbine.Why I need Wind turbine?To generate electricity to run my UPS and 15" Monitor.I want to generate my own electricity but I need guidance.So far I have found that 3 blades wind turbine works best as compared to 4 and 6 blades.Hope some one may help.Regards,DAVE - davidjohny@yahoo.com

Topic by davidjohny   |  last reply


Could anyone provide 9 blade wind turbine templates for me to use?

I am seeking templates for 9 blade wind turbines from 1.5 ft. radius to 3 ft. radius, prefer the 3 ft radius. I've seen a couple of nice designs on here, but I have to alter them and make them strong enough to stand up to 100 mph micro bursts of wind in severe storms. I am currently building a 6 ft wide 12 blade wind turbine, and one half that scale for my electric tri-hull pontoon boat I designed. It carries 18 batteries in the hulls (6 ea.) in a 35 ft. pontoon boat.

Question by extrordinary1   |  last reply



can we use a kite for increasing speed of wind mills. by tying kite while it is going up to the back of wind turbine.?

 i wish some one  passes the thread of kite once going round thru backside of wind turbine then if the kite flies higher the thread will move blades of wind turbine faster and we can get more electricity for very less effort . 

Question by jignesh shah   |  last reply


would it be possible to use wooden laminate flooring as blades for a wind turbine?

Hi, was thinking of making a wind turbine with some parts i have like a newish car alternator and battery bit of electronics and some spare wooden laminate flooring looks about 15cm wide about 150 cm tall and just under a cm deep, and some stuff for making a frame for it. got a bit of electrical knowlege. cheers.

Question by padz   |  last reply


What type of wind turbine design will get me the highest rpm in low wind? Answered

I have a couple ac motors that i am trying to turn into wind generators and they both need fairly high rpms to begin output. Where I live, we have pretty constant wind but not always high wind, so I need a turbine design that will get me the max constant speed for a reasonable price. Any ideas?

Question by Iceman94   |  last reply


Advice needed on adding a Wind Turbine (generator) to a DIY PV Solar System.

I have bought a 12 volt FD-300 300 watt wind turbine to add to my 12 volt DIY solar setup. The solar setup consists of 3 home made 70 watt panels on a single axis tracker charging 6x 12 volt 85 ah batteries wired in parallel (510 ah total) through a 20 amp controller. I run a 12 volt fridge/freezer (120 liter) and my now 12 volt (was 240 volt) evaporative air cooler (cools our 3 bedroom house) off the controller load output. The wind turbine has an inbuilt regulator. The instructions for the wind turbine tell me to attach it's + and - wires directly to it's own dedicated terminals on the battery bank. This is of great concern to me. How can this be done when the batteries are already connected to each other and to my systems controller? If it can be done without damage to the batteries would I still run the appliances through the load output on my controller? Would the different charge limiters cause an issue? My controller cuts out at 13.7 volts while the turbines controller would want to allow a charge of 14.1 volts. The two controllers also have different lower limits. As you can see I'm confused and in desperate need of quality advice. Thank you for taking the time to read this.

Topic by Rob Patterson   |  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 


I am building a v-axis wind turbine. I need to know what kind of DCmotor to use for a low RPM DCgenerator. Help me?

The winds in my backyard aren't extremely strong, but I want my design to work and provide a good amount of power if possible.  What kind of DC motor do I need?  Is it easy to create a DC generator from scratch for this type of thing?  Would the ideal motor have a low RPM?  (Because I'm pretty sure my turbine will have a low RPM) Low torque?  Obviously I'm just starting to wrap my head around all of these ideas.  How do I know which motor to get based off the information I am given from the site? Right now I am looking around at www.allelectronics.com , if anyone knows of a better site that would also be appreciated as well. Bottom line: I'm looking for as much power as I might be able to get, but I have low winds, and not a whole lot of money.  I was thinking I might be able to setup the axle to a pulley system with some sort of rubber band going from the axle to the motor, would this work? I know it sounds liek I haven't done my homework, but truly I have, I'm just getting drowned in the options and choices and possibilities at the moment. Thanks so much for you help!  I truly do appreciate your time to help me! Best regards, Aaron

Question by Mr. Retro   |  last reply


Why doesn't my windmill generator seem to charge the batteries?

Hi there, I figured Id post here because I have no one to ask and answers aren't obvious from googling. The connection is as follows: - (0 Volts to 40 Volts open voltage) Windmill to a 12 Volt Battery. - (0 Volts to 20 Volts open voltage) Solar Panel to a 12 Volt Battery. A solar panel has an open voltage @ 19.95 Vdc and delivering 0 amps.  The panel is not connected.   Then I connect the panel to the 12 Volt Battery.  Now, the solar panel now shows a voltage of 14 V and delivering 2 amps into the battery. That makes sense to me.  When connecting the solar panel to the battery, the system is now "on load", so the voltage drops.  But because the voltage drops, the amperage is being sent into the battery. ---- Now,  The windmill has an open voltage between 0 and 40 vdc.  On average it shows 20 volts when spinning. 40 volts when its faster.  Its known that it takes 14.1 volts to start charging a battery.   So, now lets assume the windmill is spinning @ 40 volts open voltage.   I connect the windmill to the battery.  For under a second, I see amperage go from the windmill to the battery.   The amperage amount is 3 amps for 1/4 a second, 0.6 2/4 of a second, then eventually 0. The voltage after connecting the windmill to the battery is the same as the battery voltage.  In my eyes, its not charging the battery, because amperage dropped to 0. As a side note, as soon as I connect the windmill to the battery, the generator/turbine, also slows down in speed.   I am also curious to know why it is slowing down as well.   Anyone have any ideas? - U

Question by useful1   |  last reply


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


How does a green power generator (i.e. wind turbine) hook up to house hold power. Answered

I know the electricity from the windmill gets converted to 120V AC but doesn't there need to be some sort of phase matching with the home AC? The home is still hooked up to the utility grid and the windmill is just meant to offset what is taken from the grid.

Question by alchemistdagger   |  last reply


How Do I Change AC hertz? Answered

So the one local power company has a complete monopoly on my city. I was thinking that this summer, I would produce my own power, and possibly give some away free to my neighbors. I am thinking that I will use solar steam generators to make steam that will power an array of Tesla turbines like those of mrfixits to generate electricity. The only problem is that the steam will likely push the turbines far above the 60 hz we use in the US. Is there any way to reduce the frequency without slowing down the turbines? Also, why does AC need a hot and a neutral wire to function? Isn't the whole point of AC that you don't have to send electricity all the way to the customer and then bring it all the way back? And are there any good i'bles on winding generators, magnets, etc.? Thanks!

Question by mad magoo   |  last reply


Help!! Hydro power

Hello! I need step by step instructions which shows how to build a hydro power system. I have to do this for a small hostel in the mountains. It needs to make 12v atleast and will use a alternator.I will need lots of help from you guys to build it all.Particulatly on the runner(what type for best efficiency,how to build it, cost, tools)and on the housing for the turbine(what material to use,it will have to be very durable and strong).I am an electronics expert so no need to explain to me what is what. Include a circuit which can charge a 12v battery bank . I am aware how a rectifier can be used to convert the alternator's AC to DC.I would like the rectifier circuit too.Added bonus if you show me how to make a housing for the turbine.Also I would like a homemade charge controller circuit too.The controller will have to have dump load options as well.If you can give a good way to water proof the whole thing... Kudos to you I will need all the plans for this project Alternator, Charge controller ,Blades, How to best wire battery bank etc. Please explain what materials to use etc. And please be aware this will be a rather low budget project.I prefer maximum efficiency and please do not worry yourself about where i will get flowing water etc.And please post your own pics if possible.It may not be possible for me to use power tools and a welder,I prefer simple tools, if not, no problem.

Topic by mhkabir   |  last reply


A min-wind turbine tower possibly tree like form

Http://www.megagadgets.nl/en/products/minikin-wind-charger-p-1265/ The image above show the small windturbines I would like to use withouth the battery compartiment, or something like wise. with the stormy weather, I was wondering if a vertical colum 3 wide, and say 3,5 m high could not be used to generate electricty. I then thought it would be better if it liked a bit like a tree, have a tree shape. So that in the bottom 0,5 m there are no mini wind turbines, but at the top end it would have tree like shape filled with them, all generating there bit of power and adding that to a battery system. As I consider it possible that to much power could be obtained, so the excess power would go to a kind of art installation. I wonder how to fabricate such a small turbine myself, but also what windspeed it could have, and how much power each one could generate. e.g. could it generate so much power that it damages itself. It may not be the most efficient form as that a small windturbine would do the same, but in total it would be flatter and with a nice color i´d like them more. I don´t really like the grayish color of those big ones they build along the road. The idea behind it is that you can then ´plant´ a forest of them. The images are merly to given an idea.

Question by Floris Vermeir   |  last reply


Exercycle Generator

63% of Americans are struggling with obesity (http://www.americansportsdata.com/obesitystats.asp). There is also a large green movement going on. So what if we combine these two ideas? I have been looking at instructables on how to build your own wind turbine, and instructables on how to use your bike as a generator for charging ipods and cellphones... why not combine the two ideas and create a stationary bike that puts electricity back into the power grid, much the way a home turbine does? Granted... it wouldn't be much power, but the more you exercise, the more money you save--and the better shape you get in. And those pennies each month add up to dollars each year... and again... the health benefits. It's almost like getting paid to exercise, which can be a big motivating factor. Thoughts?

Topic by EdsTwin13   |  last reply


Would it be possible to put a power generating wind turbine on a car and store the power in a battery bank?

I'm trying to think of ways to store power in batteries so I can run household gadgets in my van without having to resort to a generator. 

Question by dcanimation   |  last reply


Does anyone have a portable power idea?

I ride a mad max-esque motorcycle as my main mode of transportation. I was wondering if anyone has a solution for portable turbine or some such that I can attach to the bike so I can charge my various gizmos.

Question by    |  last reply


Any tips for getting the right foot out to start going green? Answered

Hi. Our family just moved into an old house that we've been fixing up for quite some time now. Once we're actually finished with the house I would like to install as many green things as possible. Like solar panels and wind turbines.. well that's more far in the future but hopefully I would like to get there someday. As for right now, unplugging all electronic devices before we go to bed is pretty much all we do. Money is hard to come by these days and that's one of the reasons why we want to go green. But there's so many different ways and things to do that I sometimes find myself going in circles on actually how to start! Any ideas for a jump start?

Question by EcoEngineer   |  last reply


VAWT a new way to wind generation

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


I have a motor from a treadmill and I would like to know what size wire to ues to get the most amp/volts out of it?

What I have is a 17.2 amps ,7099 rpm ,25 c , calss b 2 1/2 hp @ 130 VDC CW rotation. With a drill motor attached I can get 21 v out of it ,today it went into the air a top a 21ft pole and we had a storm come through I had hooked a extention cord to it so I cold get to it on the ground and I was not even getting 5 volts out of it in the height of the wind. It is a 50ft orange12 or 14 gage wire cord . Its hooked up to a blocking dioed that a brother of mine helped me wire via the internetand my load was a 12v battery with 5.95 v charge in it and now it has none. What do I need to do to make it right?

Question by crnwoodnut   |  last reply


Energy underneath your house?

Hi all! I've being thinking on how to get off grid for a while now, in the first stage to use solar power to get the energy bills go down and in second place to get my stamp on earths energy consumption, using my house in a greener way. So solar energy and wind energy are on my mind, but recently i started to think about more possibilities. Like using my crawlspace to work for me. Maybe its posible to make a wind turbine underneath the house, or use the constant temperature to cool my house during summer. I've seen plans on the internet ( and cant find them anymore... ) about using a sort off vacuum chamber that has a constand wind flow comming in, trough a system of pipes that drive a wind turbine inside. The idea is that, because of the vacuum effect, you need only a small gust of wind to power the turbine. Where i live theres always wind, sometime a little, sometimes waaay to much. The crawlspace i have isnt that high, about 50CM in hight, and during the Fall and Winter months theres a high level of water, about 25CM. Durring summer its mostly muddy sand, so there's stil a lot off cool water trapt in there. So about the idea on cooling my house, how about a water cooling system that runs trough the house? How would you guys make such systems, have you already tryed this out, and are there some enthousiastic folks out there willing to go all the way and show these idea's are doable, so everyone can make it??? Hope to hear from you soon ;-) Greets, Arie

Topic by AriedeB   |  last reply