Hand Carved 2m Wooden Wind Turbine Blades
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- Опубліковано 14 бер 2023
- In the last wind turbine video I made a new axial flux alternator for the wind turbine but I installed the old blades that were to small for it. It did work great and had a high output. The issue is that small wind turbines want to spin fast. But I dont want it to spin fast and have large peaks and wear out the blades. So I made some longer blades that will spin slower. On top of the slower idea speed for the longer blades I also turned down the speed on the charge controller. What I end up with is an inefficient turbine but one that should steady charge in low wind speeds and last a lot longer. This for me is a better option than having massive amounts of power and lots of wear and tear. I Hope you enjoy the video.
I am a little old lady (80) in Northern California. I am hooked on your videos. I am absolutely gobsmacked at the genius level of skills and knowledge in such a young ‘un.
I'm 43 and I agree with you whole heartedly. This youngun is truly awesome!
😂🤣 Absolutely AGREE!! 👍🏼☮️
@@RobEdinger 😍
@@ricktaylor4real 😍
Millennials make up more than half of the work force... It's us "young'uns" keeping the world going. 🤷🏻♂️
I have followed you since the beginning and I’m really proud of your progress. You’re an amazing young man. Keep up the good work!
Is the beginning from when he built the little house?
@@IamBATMAN2024 First videos a little before that, including a 'red pill, blue pill' talk.
Me too. The round house including heart break back when Chris was sleeping in a tent. Very inspirational story, I have so much respect for what he has done and what he continues to do.
Saw you making a set of wooden blades years ago - very clever. You wouldn't be stuck for work in World War 1. Them biplanes were always tipping over their noses on landings.
He would not be stuck for work when WW3 happens, or when the SUN goes Nova. Well done Kris.
New. I asked if he helped Noah build the Ark. He didn't reply so he could have.
@ How Zebediah Thomas He's in the right area for it too.
if you ever want another set of blades, i have a 3m/2m commercial cnc router which might do the trick :)
keep up the good work !
I’m grateful that the talent you possess is still being recognized and carried on.
Love how you give the "explain it like I'm 5" explanations while doing the technical details in the construction.
Learning is never boring. Thank you!
We really look up to you as a success in the homestead game! Keep up the good work and thanks for the videos, information and the encouragement by seeing that it can be done with a little hard work 👍
When i was in the Army I was a helicopter mechanic, helicopter blades also wear away, what the maintenance manuals have you do is continuously check the blades for missing paint ( bare metal showing). You could always paint the blades ... when you see wood, and it might last a little longer.
Kris, I have followed you for a bit over a year now and have watched all of your videos. You are not only my favorite Homesteading/Self reliance type of UA-camr, you are the example that I point out to people as my idea of the pinicale of a successful Homesteading person. The fact that you have been able to build this whole bit from what you started with is purely inspirational and my dream is to follow in your footsteps with my own alterations for my environment, of course. Cheers! and whenever I make it to the U.K., I hope to visit your farm and shake your hand. Have a great week, Sir to you and Dot!
Also, have you considered putting a wind meter in the windmill somewhere and/or finding a way to network your power controls to a centralized unit located in, say, your main living area in a way that gives you instant access to the information and allowing you to make adjustments from there, when needed?
I really like when Kris does videos on his renewable power projects. Wind and his hydro setups have been fun videos to watch. Can't wait now to see his barn go up. Good luck Kris and keep up the good work brother.
2 things. I love that you've factored in the microplastics that come off the turbine if you glass it, it shows a deeper ecological question in our own use of these products. I think you can gain a few percent on the efficiency of the bades but it comes down to the windprofile on your landscape and clever programming. You've mentioned this tradeoff yourself, but (simplified) the trade-off is this; gain power at any speed while turbine goes at any speed while efficiency is low, or gain more effenciency within given parameters and keep your blades alive. My gut feeling as former 2 year EE and avid daysailor is this, add more weight to wings because of increased surface area just to overcome the luls on your land with variable windspeeds, then a smarter (higher frequency input/output computing) program - perhaps with a sensor or two connected to Pi- to maintain a higher voltage gain /Cmax at higher windspeeds.
Are you saying that he should have more weight at the centre to provide more momentum as a flywheel perhaps?
@@stevenholton438
If you click thumbs up on Aeradill’s comment and yours he will be notified about your question.
yes exactly like a flywheel, the inertia increases squared with mass away from the rotational axis(moment of inertia). So if the surface area goes up squared and the mass increases we can lower the RPM and collect the same power thus saving the blades.
ideally we would program a bunch of steps that the turbine works of so that in light winds it strains little with high RPM (stable low wattage) and heavy winds it strains more (stable high wattage and saving blades)with 'low' RPM.
It's really quick and easy to stick self-adhesive aluminium foil tape along the leading edge of the blades, then they will last many times longer. Thin tape might be the most aerodynamic but you could just use builders flashing tape which is really tough, sticks to anything, readily available in very wide sizes and should be reasonably easy to peel off if you need to replace it.
Another way to make a turbine which works well in low wind speeds is to go for six blades instead of three, then they can be shorter.
A really inspirational project, thanks!
That whipping Welsh wind will wheedle the Watts😁.... Happy Ramadan to all🙏
Haha!
Kris! You truly are a Craftsman! Is there NOTHING you can't do?😊
On grandfadders windjack, after the second set of blades back in the late 50's, he tacked a copper strip to the leading edge, faiered it with a file. Blades lasted almost 10 years vs 1.5 years. That was in Nfld with harsh winters.
Kris, you're an inspirational fellow. Humble too. Never boring. Always thoughtful. Compulsory viewing.
I find the blade making endlessly fascinating. And right when you were apologizing for changing volts was right when I was thinking "I hope he changes the volts so we can see what it does" Keep doing what you're doing, and thanks for letting us come along for the ride!
Is there anything this man cannot build? V. Inspiring!
I realy love your work! From Denmark
That looks great! Hard work pays off! Thank you for taking the time to share this with us!
Not boring. Fascinating. You've become my renewable energy guru. We have very similar design philosophies.
A nice brass strip on the leading edge wood both look sweet and make it last a bit longer. Would certainly make a cool video, casting the ingots, rolling them out etc 👍🦆
"CAN'T" does not exist in this mans vocabulary!!
Not long found your channel but have since caught up on many many.. many hours of really informative interesting inspirational educational stuff that has been a joy to watch from the start,.. makes me wish I had half of your intelligence and ability along with half of my life again! Great channel, great content!
I'm not an expert in wind turbines, but I think your blades need way more twist close to the center, the wide portion of the wing looks way too flat considering that it moves pretty slow compared to the wingtips, that may cause a lot of turbulences, because it basically stalls, which produces noise and a lot of drag, so you lose a lot of power.
There is a formula to calculate the perfect angle, but I think you will get a good approximation if you just imagine the circumference of the circle which a given point on the blade travels in one revolution as the length of a ramp and the height of the imagined ramp is the distance the wind travels in one revolution, now you can calculate the angle of that ramp.
For example:
If the wind travels 1 meter within one revolution of the turbine , at 0.5m from the center of the wheel the blade travels 3m and the wind 1m, that equals an angle of 18°, at the wingtip the blade travel is 12.5m and the wind travel is still 1m, that equals an angle of 4.6° , for 1m distance from the center the blade travel is 6.3m, so the angle is 9°. For 1.5m from the center it is 9.4m = 6°
At these angles and a wind speed of 10m/s, without any load or drag (which is obviously impossible), the theoretical max rpm is 600, so you may get a usable rpm of maybe 400.
If you want the turbine to spin slower, you may make the blade angle steeper, for example 2m of wind travel per revolution( theoretical 300rpm at 10m/s):
At 0.5m from the center = 32.5°,
at 1m = 17,7°, at 1.5m= 12°, and at the tip= 9°
But at these steep angle the blade needs to be pretty wide to extract a reasonable amount of power from the wind, so you may choose something in between...
Another great video Kris! Always appreciate your work. Hope yourself, Dot and Puss are keeping well! (:
You're a bloody genius buddy 😊
Always very clever and informative...
Well done mate...
You remind me of someone I use to know. You are a very talentive young man. Love your skills and your channel.
So good to see you back! Missed you and Dot. Don't be gone that long in the future, please.
Kris I think you are amazing I have followed you for years😊 I am watching you with a chest infection exacerbated by Asthma. My lungs ruined by years of woodworking😥 Please do wear a mask 😢 x
this is like what they call asmr, huge blades, that glue must be something else, never had much faith in glues but maybe i havent used the best there is.
You should dump your excess in the shed. It would be a bit of extra heat! Well done and looking forward to the barn build.
Making the blades out of laminated wood actually reduces the risk of longitudinal warping, especially if you alternate the grain of each board so the natural warping forces cancel each other out.
Also, wind turbine power curves are more of an S shape whereas the one you have in the Classic is more linear. I would try bumping up the curve points on the high end.
Kris, you should be the “poster boy” for green power! I’m truly inspired. It’s amazing at what can be done with your genius mind and handy skills! I love seeing you in the shop doing hands on crafting.
I will definitely be watching this video more than twice as I try my hand at making some blades.
I’ll be starting small though. Perhaps a pinwheel turning a whirligig? 😊
Great video's. I'm always impressed how smart you are and the things you do. It's truely amazing what you have accomplished. Looking forward to seeing that barn build.
Top channel name you picked 😂👍🐐🐐
I also have followed you since the beginning (as no doubt have many others) and I never cease to be amazed at your skills. I am really excited to see the barn build underway. All the very best with this project.
Kris! Another incredible display of skill from you. I really appreciate your handiwork because I build and renovate mostly form wood myself. My family has a small summer place that i revovate whenever i have time. Thanks for the interesting stuff. I am actively following from here in Finland.
Beautiful job! I remember the first pair you made.
Never thought about the leading edge wear, and it does make sense that it would do that! Like a river running over stone. ❤🤗👍 have a great day
Although it is more complex to carve, creating a washout from root to tip will improve efficiency by quite a bit.
Increasing the pitch at the root and reducing it at the peak will bring the centre of pressure away from the tip (where the greater speed will generate more torque but has the greatest potential losses) and even out the load and make the whole of the blade do work rather than the bulk being done at the tip.
This will also have the added benefit of reducing noise, which is primarily caused by the tip.
In aerodynamics the shape for wings with higher speed are more slim and thin with less of a bulge at the top side and with a smaller angle of attack.
The shape for low speeds also are not flat on the down side, they even have an inward curve, and a greater angle of attack.
In wind mill blades this is all taken into account.
You can construct the ideal shape for the average wind speed with vector diagrams for the different radii.
The way Chris has done this one makes the tip more of a brake to the rest of the blade
Brings to mind the Wright brothers working in their shop well done Kris. How can someone watch this and not take a second to click like ?
Congrats for the soon half million subscribers Kris. All deserved.
The twist in the blade is referred to as the Helical Advance for equalizing the wind load over the length of the blade. Interesting stuff.
On an aircraft wing it's known as 'washout' and it is built into it so that the last part of the wing to stall is the tip.
I can literally watch your videos like a Netflix series. Keep up the good work !
Coffee with Kris and watching some awesome vids...
Always a pleasure to see you tackle a problem and make the best of your talents Kris!
Will be interesting how you work out that tail of your windmill!
Thanks for posting and sharing. When you brought the blade assembly in front of the workshop was when I realized how big the whole assembly is.
So every farm, household, small business could be off the grid with the right combo of tools...Great!!!
Your videos are always worth waiting for. Enjoyed this one.
Thanks!
Kris you are a very clear man and I like the way you cear for nature
Olá meu amigo parabéns pelo seu gerador eólicos tubina 👍🏼👍🏼👍🏼👍🏼 🇧🇷🇧🇷🇧🇷 Brasil
My maternal Grandfather was drafted toward the end of WW1. He was a Journeyman Carpenter and they had him carve propellers. I understand that he was disappointed that he didn't see any action. I am glad he didn't, after all, where would I be if he got sunk.
Is there anything you can’t do kris? Build and house, build a workshop, rebuild a motor, carve a set of wind turbine blades! It’s really impressive to see what you will take on and what you achieve!!
6 minutes in and I subscribed, great commentary!
What about a sacrificial wooden leading edge and tips? Might mean the main assembly needs to be replaced less frequently?
You’ve such a wealth of knowledge. Not only do we get to see the artist at work, we get to learn along the way. Job well done 🌈
slow n steady wins the race
Almost 1/2 a million baby! Precongrats
Your hard work is just as impressive as your talent. Inspiration for all of us!
Always enjoy the videos.👍
Great work man. You must have put a lot of time into learning all the stuff you know.
Another great video!! Enjoying the variety of topics.
The man. Takes a rest from building by making his own blades! Brilliant
Thank you Kris. I look forward to your videos. You are a true craftsman.
Absolutely brilliant!!!!!
Outstanding work again Kris!
Kris your bloody brilliant ! You’ve helped me become a better person with your skills and style 👍🏼😁
I'm just blown away, not only an exceptional craftsman but the knowledge and skillset to are something us mere mortals can only dream of. 👍
Totally awesome Kris !
Thank you for taking time to show and teach us
Every piece of my formal education is screaming at me to tell you you're doing it wrong.... Yet it works. This is the main difference between formal book education. "It Is like that because we say it is" and real world. "It is what it is because it is" I love it!
Yep... Lots of turbine nerds will say that Kris could build a better, more efficient blade(and go into enormously tedious detail as to why...!) ..... but they're missing the point.....!
I watched your video on your upgrade of your wind turbine and thought that is really great, but I remember you mainly did the project because you wanted to make the blades less noisy. I just watched a video about the company called Zipline, which is a drone that delivers packages. In this video toward the end it talks about the design of the blades that does work to make the blades whisper quiet and i thought you would be interested in that also. What I seen was that the blades was not inline with each other and the curve of the blades are different. Well if you watch you will see what I am talking about.
Thanks for taking the time to explain this Kris, you've loads on and it's appreciated. I find it fascinating and find the explanations really helpful.
Small steps of progress add up - well done and good work.
Always a good day when a new Kris Harbor video drops! The blades look awesome.
Fantastic Chris, great video
Brilliant work 👍
Brother, you are in another league!
Brilliant Kris, progress is always good. Keep it up and stay well.
Classic Kris Harbour! I love your work.
Excellent, nicely done.
Great stuff mate, the mighty Land Rover winch had no trouble pulling the wind generator back into place. ;)
Thanks for the video
Great video Kris thanks.
Very impressive as always! Looking forward to the barn build 🙂
That’s looking great! Fine work again!
I like that these are real projects for a functional purpose. Kind of fatigued on all the cosmetic DIY fluff.
I was so happy to see you post a new video. Goes really good with a warm cup of tea. Thank you for making your videos.
Looks Great Kris
Just brilliant Kris. Please keep making videos they are inspiring.
Where there is a will, there is a way! Because persistent people will make it so! And you are persistent! Well done ye 👏 👍 🙌 😀
Great watch as usual
Thanks for the lesson Kris, you make it look fairly easy, I may give this a try.
You're so clever Chris, amazing work 🙌🏻 have you ever thought about lecturing at all? It would be great to pass on your skills, you've a great way of explaining things too.
The problem with that is that it would take him away from the ‘hands on’ which he obviously so enjoys.
Genius at work. Big up Chris
Very Intresting, cheers for the Upload.
Brilliant thanks for the video.
This is pretty amazing stuff, I enjoy watching you making electricity via different methods, wind, water, sun
Nice work Kris…..as always.
Awesome build thanks for sharing ^-^