Category → Wind turbine design

How to make a coil for a wind turbine generator

19 April, 07:46, by homemadejoe Tags: , ,

How to make a coil for a homemade wind turbine generator

Watch this demonstration of how a wind turbine generator for the home can be made.

Link to the video page for the homemade wind turbine generator.

Recent comments on this video on how to make a homemade wind turbine generator below.

Latest comments made on this video:
ITS A TUTORIAL NUM …
By: WOWANIAC. on 10 Apr 12, 22:15:23
its a tutorial num nuts?
VERY IMPRESSIVE …
By: DIVERSIFUN. on 19 Mar 12, 17:38:52
Very impressive technique. Awesome job of showing how to make coils, but you are using the wrong shape and size. Magnetic flux moving across the coil only produces electricity when it is perpendicular to the direction of the motion. Your coils only produce electricity near the middle and not near the inside and outside edges. Square? coils will capture more power and the in/outside edges do not have to be under the magnets because they don’t produce power anyway.
IF YOU? LOOK I ONLY …
By: ACEMAN307. on 17 Jan 12, 15:12:33
If you? look I only have 12 videos. I show all the steps for making a wind turbine. I cut down my videos considerably and it still takes about 50 minutes or 4 to 5 videos to show step by step how to do it from begining to end.
I WISE YOU GUYS …
By: BUSHBASHER46. on 16 Jan 12, 21:10:06
i wise you guys would do a complete video on how to make a gen? and the parts used and show it working not these damn little bits
THIS IS SO …
By: STEELSAIL. on 23 Dec 11, 07:21:36
This is so informative and well done. Thank you for sharing…. I think I might try and build a generator from? scratch!
THANKS FOR THE …
By: ACEMAN307. on 12 Aug 11, 14:19:37
Thanks for the props. I? live in Costa Rica and the mail system here is primative at best and cost alot to mail things. Its not to hard to build just using stuff laying around. If you need any help online let me know.
I SEE ALOT OF …
By: WOODBURYADPOST. on 11 Aug 11, 22:12:32
I see alot of people using electric motors and pulleys to make a coil, but shit man, this has to be the best homemade device i have ever seen! The entire? thing is frickn beautiful. I am really impressed with it. By any chance would you sell one of those?
@ …
By: ACEMAN307. on 08 Jun 11, 19:13:54
@eastsidesigns1Tthinner wire = more space for more turns . Also the smaller the wire the higher your volts will be but less? amps. So the trick is to get the right combination of high enough volts to charge your batterys but not to high because more amps will charge the batterys faster.
WHAT’S THE …
By: EASTSIDESIGNS1. on 08 Jun 11, 18:48:49
what’s the significance of 70 and 120 in making? the coils and how does the diameter of the wire affect the winding?(thinner wire= less space for more windings? )
I REALLY NEEDED TO …
By: ACEMAN307. on 29 Apr 11, 17:11:38
I really needed to make this coils with more turns like 120 verses 70 I could never get my volts over 6volts with the wind conditions I have here. All the videos for making coils that I have seen show using one wire. I am now more interested in making? some serpentine coils I hear they are much more efficient.
I SEE HERE YOUR …
By: DEWESSONSAX. on 26 Apr 11, 18:17:00
I see here your using 1 strand of? wire as opposed to 2 strands, what are the differences in volts and watts. Thanks for the upload.
THANKS, DOES IT? …
By: 1LIVEANDLEARN11. on 11 Apr 11, 09:16:21
thanks, does it? have to be enamal coated wire?
COOL PAT L.?
By: PATRICKLARUE73. on 23 Mar 11, 08:29:03
cool pat l.?
WHAT I THOUGHT …
By: ACEMAN307. on 26 Feb 11, 01:32:48
What I thought enticed2 was asking was could he use regular plastic? coated wire. Which you could it just would not be very efficient. I was giving him the benifit of a dubt that it would be silly to use bare copper wire.
YOU CAN’T USE BARE …
By: SKYJETS. on 26 Feb 11, 01:25:56
You can’t use bare copper for coil windings. It would be like having? a shorted coil ???
WOW, THANKS, THAT …
By: ANTIZERO100. on 12 Feb 11, 22:58:55
wow, thanks, that was? really good, you have inspired me
NO IT DOES NOT HAVE …
By: ACEMAN307. on 02 Feb 11, 13:33:24
No it does not have to be enamel coated wire but you want get much voltage out of it. The? Idea is to get as much wire as close together as possible in the coils so to get the most voltage from each passing magnet.
DOES IT HAVE TO BE …
By: ENTICED2ZEITGEIST. on 26 Jan 11, 03:03:31
Does it have to be enamel coated copper wire? Where do you get that stuff anyhow? and how much is it usually?
DO? YOU KNOW LIKE …
By: YOUTUBSUXFV. on 23 Dec 10, 16:54:16
Do? you know like how many amps does it make in a 70rpm wind?
HEY DID YOU TRY TO …
By: PAULEXHEISTXER. on 21 Dec 10, 12:06:51
Hey did you try to wax the coil ? I got the idea from building a guitar pickup. you take wax,? melt it for example at a deep fryer or a pot a put the coil into it for some minuten or so on (i don´t know how long it takes) a then you put it out let it cool down and you have a coil that will stick together itself. sorry for bad english im not englisch or american i´m german. greatings from germany.
DOES IT MATTER WHAT …
By: ADVANTAGE12. on 06 Dec 10, 06:17:13
does it matter what gauge wire you use? is one size better than another? i’m about to buy a big spool and get to work on one of these myself. ?
I USED ABOUT 70 …
By: ACEMAN307. on 03 Dec 10, 12:25:58
I used about 70 turns, The voltage depends on how fast it spins, I dont have a way right now to measure the rpms, I know my? turbine spins too slow to make usable power from this PMA. I guess about 70 RPM gets about 5 volts’
VERY GOOD HOW MANY …
By: QUEBALL147. on 19 Nov 10, 13:25:41
Very good how many coil winds did you do?? also you said 24 magnets and 9 coils what voltage will this give off? thanks
HELLO ACEMAN, I AM …
By: DAMENACE3. on 05 Nov 10, 08:32:57
Hello Aceman, I am about to do further Research? But, How Does one know how many winds do you require ? i am sure there’s some sort of regulation on the number of winds needed or required. My interest in this matter as i was looking to make a voice coil and i had no idea or know the principal behind the winded coil. Any helpful websites you recommend??
A QUESTION, CAN I …
By: ANDROIDDEVIL. on 01 Nov 10, 17:02:12
A question, can I make a antenna out of a coil, I think I could? because it makes an electromagnetic force around itsself if you wind it in a bolt and connect 2 ends to positive and negative ends of an antenna to make it more powerful and if anyone say it doesn’t tell me how should I make a powerful antenna, Thanks.

Homemade Wind Turbine and Commercial Wind Turbine Usage

Number of Wind Turbine Blades

22 August, 17:52, by homemadejoe Tags: , ,

One of the most asked questions prior to building homemade wind turbines is the number of blades to be used. For the last 50 years, wind energy system manufacturers have used two to three blades. However, the third blade was not much of an option if the priority is to increase aerodynamic efficiency.

During tests, it is found out that increasing the number of blades from one to two increases aerodynamic efficiency by 6%. However, when two blades are increase to three, there is only a 3% increase of efficiency. Minimal improvements are yielded from additional blades. Furthermore, as the number of blades increases, the thinner the blade gets, sacrificing blade stiffness and power generation.

The cost is also affected by the number of wind turbine blades. In general, fewer blades mean less manufacturing and material cost. A wind turbine with fewer blades is also able to build up higher rotational speed with reduced peak torques, allowing lower generator and gearbox costs.

Number of blade concepts

1-bladed concept

It may look pretty unbalanced and strange but a one-blade wind turbine save an entire cost of a rotor blade. Although more economical with regards to manufacturing costs, one-blade wind turbines suffer from aesthetic and noise problems. A counterweight on the other side of the hub needs to be placed to balance the rotor and keep it from rotating.

Teetering or 2-bladed concept

Some wind turbines have only two rotors to save up on the cost of a third blade. However, 2-blade wind turbines are being overtaken by 3-blade wind systems due to aesthetic and noise issues. Rotational speeds also generate less energy, making it a poor second to third-bladed wind turbines.

3-bladed Danish concept

Modern homemade wind turbines have three-bladed designs, also referred to as the Danish concept. This design provides a smoother operation during turbine yaw due to symmetrically balanced cyclic loads. While two-bladed concepts allow less manufacturing, materials, and maintenance costs, three-bladed wind turbines are considered by some people to be more balanced and pleasant to look at compared to one or two bladed turbines.

Old and modern wind turbines differ in speed and materials use. Modern small wind turbine blades are mostly made from aluminum because of its low density and resistance to corrosion. When combined with composite materials, it allows the blades to gain speed as the winds pick up. Commercial wind turbines use a variety of materials that require composite fabrication techniques to ensure the durability and longevity of the blades.

If you are building homemade wind turbines, consider a two-blade concept for easy installation and construction. However, if you want a quieter wind turbine operation, higher efficiency, and do not mind spending for an additional rotor, go for three-bladed wind turbines. Residential wind turbine blades do not have to be made from expensive materials. Look for lightweight glass-enforced plastic or even laminated wood to reduce material costs. If budget is not an issue, use graphite-fiber in epoxy for specific load-bearing parts of the rotor blades.