Dear sir. This is brilliant! However, I may have some suggestions, to increase the output, quite easily. The diodes in the rectifier will eat up at some 1,5 volts and produce heat of that, if it is a standard silicone bridge with 0,7 to 0,9 fall over each diode. 1,5 V is quite a deal if the generator produces some 3 V. It is 50%, that get lost. If the bridge is built by 4 shottky diodes with 0,4 V fall over each diode, and just eats up 0,8 V over the bridge, the losses will be decreased by a half, and the rectifier would be close to 75% effective. From the generators 3 V, there will be left 2,2 V, instead of 1,5 V. Next thing is to increase the number of turns in the serpentine coil. By doubling the turns the voltage will be doubled into 6 V, and there will be 5,2 V after the rectifier, and the rectifier will just eat up some 13,3 % of the power. There will be a limit, depending of the space allowed for the windings. The general rule is to keep the windings as tight as possible, and as close as possible to the magnet field. A millimeter closer is crucial, and can make the 6 V output into 12 V, and Now we talk. 12-0,8=11,2 , and the rectifier will be 93% effective. This correction, will increase the mechanical resistance in an equal way, similar to the voltage gain. I.e. It would not spin as easy as before. This was suggestion 2, and 3. You never get something out of nothing. But there is a fourth thing to consider: You can always use a transformer, to multiple the voltage, before rectifying. There is no rule that says that you can't get 230V out from a 6V source. But a transformers efficiency depends on the frequency, and what kind of iron that suits the best.. For frequencies say 30-400 Hz, standard E-I steel-blades works relatively good as core material, but over that, it becomes more and more complicated, though iron powder and ferrites will be better to suit the frequency. A solution like this with windings at the peripheral, may well produce kilohertz, as well as 20 Hz, and no iron suits this span. You would also have troubles to handle a span from 3V to 3000V, but all is dependent of the Min-Max spread. This is very complicated, and transformers are not 100 % effective. My suggestion to make a generator is that it don't exceeds 35 V in a storm condition, though you can use cheap electronics to charge batteries, that will hold the energy, that can produce other voltages for needs. But consider, that there are losses involved in every stage. Use step up, or step down converters i.e buck-boost controllers, use MOSFET transistors, and the best quality capacitors and inductors, to minimize every loss. Take care to search for the less needed stages for it's need, and Keep It as Simple as possible. So dear Mr R.M. Smith: I love your turbine, and the way you preaches simplicity. I totally agree with you. I just wanted to add some thoughts. I am a Swedish, over aged engineer, that can't resist work, though I am alone, so I stay halftime. I love to watch your movies, and loves your wonderful laughs. My best regards.
Transformers will increase voltage or current but not watts. Also a low impedance winding on a transformer will greatly increase the load. The rpm will suffer as will the power
I agree that you can use and Shottky diodes, yes, that's right. But, this was mentioned even in this video here and before. This is a proof of concept, Robert was telling to put the money where he's mouth was. ;) Making it dead simple to create and play with it at later stage. It's not about the perfection ;). Yes, you can use transformer, but, if you're going that far, worth mentioning that a linear transformer has a higher loss than a high-frequency one ;) - less windings, but you need to understand the MOSFETS and the protection circuit ;). This efficiency would be better than a regular transformer. As you've mentioned about the frequency, you know what I mean about the switching power supply and its uses. Because you don't want switching one for instance in the audio system of a higher quality ;), or medical stuff. As per your other suggestions, why not do something and show it to everyone? :) You could put your money where your mouth was. :) That would be nice to see as an improvement and you don't have to 3d print even :). If you can achieve a higher efficiency, you can use materials from the recycling :) and will have a better efficiency :). But hey, it's me and my opinion, you can do what you like ;).
If all your interested in is a voltage boost then just make a Schottky Bridge Doubler Circuit. It doubles the voltage It only has 4 diodes and 2 capacitors. I've used them many times
Yes so very promising right ? @RobertMurraySmith I went for solar so I could have a few of the bits and pieces to allow to plug stuff like that in... I really hope it is indeed possible... generators like that for gateways and other remote devices that can charge at any time of day (maybe couple with a small solar panel to be even more resilient would be great to try too... Anyway really awesome to feel like it may be just be round the corner...
@@bdanuw Yes, but I'm sure Rob would point out that by the same token, it probably won't survive a gale! For prototype 'works' is good, but for a real thing you'd want to design for the strength of wind you expect.
@@ctakitimu I'm designing for use on a small sailing boat, wind speeds up to 40mph - and being able to pack it away when the winds get higher than that! Obviously that places significant structural demands on the system, not just the turbine, whether it's collecting or deflecting the wind. (Working on sailcloth Darwin funnel, hoisting more or less as the wind conditions dictate, or collapsing the whole thing to pack it away)
You nailed that idea keeping things simple. I used to over complicate designs to the point where it stayed in my idea book. I've learned to just keep it simple... actually build the dang thing, and complete the project. I live with the design for a bit ....use it, look at it and think of ways to improve it. Sometimes, I'll iterate. Other times, I'm completely fine with it
I think a better question to ask its "can I make it MORE simple/LESS complex". In engineering, complexity is relative, something than may appear to be 'complex' is often as simple as it can be, just not as simple as the observer expects it to be. Of course when you add cost into the equation, the simple vs. complex argument becomes polluted because less complex is associated with lower cost, that doesn't necessarily make the product better.
Looks great Robert,works great looks, it looks allot like the kite I told you about years ago that I bought as a kid, they were army surplus (I was told by the vendor in the golf area of the United States). They were made of Styrofoam, and had orange and white coloring on the rotor portion so that the colors alternated as it spun. With the wind on the beach they would stay flying without attention, he had them staked out all over the beach, which is how I purchased one. The string for the kite was attached to the pivot point in the center on either end of the spinning drum and joined together as one Kite string. Thanks for this build! Always wondered how it would do. Excellent. The kite had an airfoil cross section of each of the two rotors blades. I really like that you have revisited this with flare. Your rotational ventilator cap generator was great as well. And the later variation with it's isolated salvage transformer pick up coils was a stupendous build also. Great stuff. Would love to see how one made of industrial insulation 10 feet tall and five in diameter would do it, but hey all you need to do a scale of the math right? But still I wonder what a big beast might do. Honestly I could say I would really love to finish my years living in an active version of a dutch windmill with this thing for a rotor built into it. Or maybe just a dutch windmill with him create parts, there's a lot of room inside of one of those, perfect for me. I always wondered how a design like that would work at the peak of the roof on my house . ...
Great video and some really excellent tips on design for both new and old designers/makers. Would love to see the output of a small "wall" of these under real wind conditions. 👍👍
Commercial vehicles, such as vans that use a Fletner system to extract air from vehicles that carry noxious chemicals, or carry animals, would benefit from this to charge their batteries on EVs or a leisure battery on motor homes. I’ve been pondering this ever since your efforts using the microwave motors a few months ago. Love your enthusiasm 👏👏👏
Dear Robert, I stumble across you and your work on TH-cam and Thingiverse all the time! You amaze me with your intelligence and ingenuity and you brighten my soul with your infectious laugh. People like you are what makes this world a better place! That isn't poppycock, isn't that what they say over the pond :)? It feels like a small world at times when I see a really interesting 3d print and it is you. Well that just happened the other day, and that was when I saw that you lost your beautiful bride, I watched her video with a tear in my eye thinking what you are going through. I never leave comments ( seriously never ) but for some reason, I felt a pull for me to reach out just to let you know, that there are people out here that care!
Never a truer word spoken, I have many good intentions in the garage waiting to be finished. But I do see the benefit of a 3D printer to complete most of the hard work.
I think the easiest way to get a project like this going for parole is with some BMX bike rims or even big racer rims . All the bearings and balancing is already done and power at the rim is what it's all about ! I think i might get my thinking cap on and work out how I am going to fit a serpentine coil cos I am a huge fan of that idea!
What you said Robert is a fact. Simplicity of design is what makes things work beautifully. Making it easy for others to copy and use the idea and pass it on and on. The copper coil wire needs to have a thin layer of silver on the outside of the magnet wire then the insulation finishes the magnet wire specifications. The silver plate really increases the efficiency of the coils. . Job well done fella too. vf
Hi Bob. I really enjoy watching your videos, and i learn a lot from them👍 I am a little bit like you, i like to explore, and invent, curiouslike heck, but, a novice compared to you. Used to work in a scrapyard ( my favourite place to search for projects 😃) A few years ago i bought a cooling fan, probably in a cooling tower, it has a 65 cm. fan, who is very sensitive to wind, just by walking with it, it starts to spin ( gave me a blue nail, when i was moving it about😝) So, i need some help from you sir, please. From the motor there is nine wires coming out, ending up in a connecter rail, two yellow, thin ones, the rest goes into: w2 u1 u2 v1 v2 w1, and ground. Have ohm,ed them all out, no problems, no problems with the ground, this is Denmark, no problems with the wind 🤣Can you tell me how to hook it up, so i can get tree power out of it? Thank you.
Hi Robert. An excellent prototype and presentation. I'm a Geophysicist and the serpentine coil has got me inspired. We do EM surveys to find metallic minerals. Now drones are the go. So I will look into the transmitting and receiving from such an efficient coil. Yes frequency maybe the issue.
In a windwall configuration, if you stacked them, design units to rotate in opposite directions. Each unit could have magnets on the top, and coil on the bottom, and alternate the rotation directions as you stack them.. The more you stack the more power you get, and each unit gets double the effective RPM because it's rotating in an opposite direction of the one above and or below it.
A stacked counter rotation version I would really like to see. I believe just inverting one of two identical units would result in the one on top rotating opposite of the one on the bottom so your build cost would still involve only one design. I believe it would however require including a axel bearing on both ends rather than only on the generator end as shown. This would be a great project to upscale test.
A rim-speed generator built-in to the turbine of a wind-tower of the kind you've been prototyping recently seems like a superb way to go for many applications.
@@ThinkingandTinkering hi. I have one idea and I'd like to know your opinion. What do you think about applying venturi pump to hydro power dam? I mean, if we could connect venturi inlet to discharge of dam we could create 7/24 environment friendly wind and by applying one of the super efficient wind turbine to air suction for creating energy. But I have some doubts about if it will decrease efficiency of hydropower. What do you think?
Dr. Smith, your selections of videos would compilate into a complete system. I'm ready to see a whole system built by you. Generator and storage. Just like your wind turbine make our world spin. LOL
I'd love to see a video where someone (a viewer maybe?) sets some system up in their garden and actually charges a home system with it. Is there any RMS forum where subscribers / viewers share their examples? I fully plan to have a go myself someday and would love to share that experience somehow as well as see others.
I don’t expect a garden size installation to power my whole house but I would love to figure out a way to have one that was attractive and produces enough to say run some lights in my garden.
I have had for years a desire to make an injection molded savonius turbine had can be put up on the roof by the costumer himself. Thank you for showing that!
Amazing Work!! Great proof of concept & love the KISS method. Would the complexity of additional power generation over complicate the design? Perhaps, modify the top plate for magnets also w/2nd coil plate; the required longer shaft & bearing may also stabilize the unsupported topside of the fan.
I think the best compliment I can pay you is to compare you to professor Eric Braithwaite who was amazing. Great video's wish a tv channel would pick up an option for a tv show of what you do. Never stop.
Yeah, I think many of us struggle with overcomplicating things. So, thanks again for another great reality check. Keeping it simple gives surprising good results.
Yes, simplifying things is the way!!! I managed to simplify radius calipers the other day, down to one moving part. Now they look deceivingly simple for what they can do lol, but now I need to prove their capabilities with a better refined version. I loved the fact that this could just be blown by a person 🤣 Incredible results, Rob!!!
Excellent, thank you for sharing. We waste so much free energy we could harness, e.g., the hot moist air blown out of our AC condensers; we could harness the wind, heat, and the moisture from it.
New sub here...love it! I built my own design and manufacturing business a couple decades ago. Simplicity is Godliness! Agreed! It's what USED to make Mercedes Benz, a Mercedes Benz! Simplistic, efficient cars that would run forever. Use quality materials, minimize moving parts and complexity and viola, you have half million mile cars as the norm. Today? They are techno piles of junk after a few years. Rain sensing wipers, active headlights auto dimming this and that. Just heaps of complexity to fail and a fortune to repair. Old MB headlight went out? A new bulb was a few dollars. (U.S.) New MB headlight goes out? You have to buy the entire housing with this plasma generator and radar module etc etc $500.00 please. No thanks.
You really convinced me to try the snake coil. This really is a magic video. Do think about bearing on top because now you have a lot of flutter resulting in wasted energy. Thank you, as I said, magic!
About 7 years ago, I designed and built a hot water heating system, for my house, to supplement the propane heater. It was caveman simple, with me knowing only minimum about efficient heat distribution. That system, today, is somewhat increased in complexity, but efficiency is such that it can complement or replace the propane system at need. Now that I've started designing an electrical system with similar goals, I'm glad you've reminded me to KISS (and to laugh... important to have fun when tinkering).. I've a tendency to start too complex in the design process (much to my own detriment, often enough). I've got some thinking to do
Hi, may I suggest that if you were to deflect the wind away from the returning blades on the opposite side of the working direction of the wind by adding a directional tail to it you will enhance the efficiency of your turbine a great deal! Vertical axis wind turbines all suffer from this to overcome the force of the wind on the blades on the opposite side of the working direction and all future VAWTs will benefit from this addition. I am currently working on the concept with astonishing results.
an observation i had while watching it operate with the air blown onto it is the magnets were lifting the rotating assembly which would reduce efficiency (LOL) but also easily and cheaply solved by having means to hold it in position at the top. great video rob :)
So, what about doing a Print that would sit at the bottom of one of your wind catchers, the tower with the flaps.... That is based on the same idea. Something that is about 10cm thick that has vanes and the rim mounted magnets with the serpentine coil. If you are going for rim speed something larger in diameter would be awesome, but I don't know how big your printer would print. Something about 50cm in diameter would be really cool. Speed at the rim will go up exponentially at the rim with an increase in diameter. If I ever come across the pond I would love to come play in your workshop for a day or so.....
Iam fairly new to your channel, though I'm not a tech kind of guy, I find this very fascinating and certainly challenges my thinking a d you make it look so easy...thank you for that. ❤ subscribed!
I'm always 50/50 on the idea of simplicity in engineering. Its benefits are obvious, but that same mentality would rule the car, plane, even computers as too complex to be worth it today. One can try to point to the goals of Mercedes and the Wrights being exceedingly simple compared to where we've carried those technologies today, but that's just the thing. It's nearly impossible to get simple devices off the ground these days. We're so jaded with so many "mature" technologies, fledgling tech and alternative paths have a hell of a time competing, especially since engineers are very fond of the stagnant legacy "if it ain't broke, don't fix it." And that's not even touching on problems created by market behemoths having every tool possible to shoot down the little guy with governmental help in some cases. There are a lot of alternatives we should be looking at to replace windmills, yet were still using the same basic design used in a pedestal fan because the old farting dog we named Industry knows it has the best approach if no superior method is sought and found. And with no real competition, why innovative? Where was I going with this..... End of the day, something shouldn't be simple or complex, it should only have the level of complexity it needs to function, plus the safety factor. Edit: And then there the "best solution is not to have the problem in the first place" people. Anyone who seriously invests in that brain dead platitude should be handed a gun with a single bullet and reminded that, according to their own philosophy, they now have the means to solve every single problem they have, have had, and will ever have, so how about a demonstration? The rest of us have things to do.
no mate simplicity Is always present - it is made as simple as it needs to be - a computer is a stunningly simple thing - it is just switches arranged small and that's all it is - when it comes to manufacture the approach is always the best part is no part and the best process is no process - a ton of effort goes into reducing component count - I think you might have some confusion between simplicity and simple
If the main subject is "keeping it simple an cheap" there will be no progress. Because simple and cheap is not progress. Savonius can only become more efficient by making it more complex. Efficiency must increase with the same swept area.
@@HendrikStander-v1l Largely my point. Further, a bit surprised RMS gave me pushback. For all the times he's commented about people doing exactly what I said whenever he makes a new generator, expected a different reaction.
The human talk to suit himself. Sometimes by closer inspection one can see what suits the human. There is a saying " in the land of the blind the one eyed is king
Hi Custos. If nothing in a design change , the result stays the same . This channel is about marketing of 3D Printing. To do the print you must create a 3D model of something using CAD. The CAD file is then converted to a STL. File this file format supports 3D Printers . So if I want to sell a 3D Printer to a novis I must have exciting things he can print. So If I have STL files that I can supply all the novis must do is learn to operate the Printer and load the STL files. So if you are a turner and machinist and you know CAD you can do CNC programming also. So for the novis everything must be simple and cheap
I was thinking of something similar, though with a sphere with angled slots. After seeing this one in action, I may be rethinking that idea. Can't get much simpler and doable than what you have there. Thanks for the video Rob! Outstanding!
Great video! It would be very helpful to set up a test stand where standard size VAWT models could be compared. For example, take out the Savonius turbine and put in a Ugrinsky, adjust the load to identify the load and RPM at which each model produces the most power for given wind speed. A service where standard size VAWT models could be sent in for testing would be wonderful.
Awesome stuff Rob..really impressive performance for such a little unit. Thanks for all the hard work you do bringing these great little devices to us!
I experimented with alternative energy for years. It turns out solar is the way. Quiet, simple, no moving parts, works very well, cheap. It is truly “free energy” and it is readily available. It turns out the true conundrum and unsolvable problem is cheap or free (desirable) land. Cool toy though.
Very cool! I am an rc glider guy and always wondered if anyone is looking at the dynamic acceleration that we take advatage of for dynamic soaring. A wind turbine placed on the same angle straddling the front side/backside of a ridge that we fly on would provide a constant acceleration as all sides are flying a down wind pass.
@RobertMurraySmith After watching your 1860 video where you mentioned 3 phase, I looked into the difference in outputs. Since 1 benefit is higher amp output, would it be worth the additional material / complexity to bother with it? I agree with keeping things simple, but also want to reach for the most potential I can achieve. As others have said, wind speed of course has a great deal to do with how this will work for most people. Unlike you, where I live the average wind speed ranges from 3 - 5 mph at 10m. So your demonstration was fairly accurate of what I would have most days. I fear that this is another path for energy independence that will not be worthwhile for me to implement, however, I always appreciate the additional learning and creative projects you work on. Thank you.
That's really great stuff! Correct me if I'm wrong, but the induced current is strongly related to the magnetic field strength, so the output would be greater if you turned the base upside down and move the bar to poke out the opposite side of the base. The magnets would be 3-4mm closer to the coil.
I just now (22:00 21/03/2023) happened on your channel and is going completely nuts 😂. Having been considering wind energy to supplement my solar system during the night time, this obviously looks like the solution to my particular setup as we have wind in abundance. Now my question is not merely to ask where to get your stl files but where to find the formulas to calculate the curvature of the "blades" for a specified circle as well as the number of magnets and the coils for that circle. I'm restricted to a maximum circle of 210mm (r=105mm). Thank you in advance for your help. 😊 BTW I have subscribed to your channel even before writing my comment.
have you tried putting a spiral winding around the outside of the cylinder i could help guide air flow to where its most needed and keep animals from colliding with the turbine portion sort of like a rudder and funnel
you could put magnets on the top and bottom slightly offset to reduce drag while doubling the amount of coils and maybe replace the plastic winding bits with iron cores as i'm pretty sure that would make the field stronger as it passes, to keep the upper coil stationary just add a C frame holding the top and bottom coil plates as a set
Great results for such a simple and effective design. There was quite a bit of rocking I noticed could this be mitigated by extending the rod through the centre. Perhaps to accommodate the stack you suggested. Also wound having another coil on top be an idea? Keep up the good work and keep on TnT 😊
How about a bottom AND top magnet and serpentine coil assembly? It might be more balanced? Your laugh is infectious by the way. Much as is your unmatched enthusiasm!
I remember large scale of these stacked on top of each other in orange groves and rosemary groves in Florida in the 80s most were not still in operation at that time and I always was curious what they were I ask someone who worked the groves a old timer he said they would power the Irrigation pumps free electricity I now under stand
I love the project and will consider it as one of my first projects when I get the 3D printer I am planning on in the near future. I would be interested to see the effect of adding some low reluctance steel strategically to boost the magnetic field.
@@partciudgam8478 I just saw a Far Side cartoon- The three little pigs were in a brick house looking out the window at the big bad wolf handing a fist full of dollars to A Kool Aid pitcher with legs.
Would you expect to see any more efficiency/ gain by increasing the size the diameter of your motor in comparison to your turbine? You would get a wider footprint for better stability and anchoring, but would you increase output? Im thinking increased diameter flywheel/ generator on a clutch. Have I departed from KISS here much?
Agreed on the simplicity needed to actually manufacture something. Although, clearly we reach a point when the simplicity goes out the window, as it does for engines and power steering systems and the like because the demand for robustness outweighs the easy of keeping things simple. Looks like the automotive industry figured that out a long time ago but, I do think they go overboard at times lol. To start with, your 100% correct on simplicity, to go forward however requires more complexity. If they can build millions of cars and have been for over 100 years, then I reckon anything can be made cheap enough to manufacture given time and infrastructure.
These would be perfect to place on the corners of the compressor for an air conditioning unit. I live in Florida and would love to scavenge a little electricity from the AC running most of the day. Thank you for the great videos!
Another thing about the design is too that imagine doing this rotation section for generating power on a bicycle or even a foot style pedal from a old fashioned lathe.
Very cool. Wouldn't resistance slow it down soon as a load was hooked up to it like a charger control set at like 13.7V for charging 12v better bank or does that led represent the same load of it was set up to charge 12v battery back? I made a wind turbine and would spin crazy showing tons of power on the multimeter and it still works but definetly slowed down when hooked to a load had to add more blades for more low end power and the blades are 3' long I'm be to the is why I'm asking. And I'll like your design I'm just wondering. Love your channel
Thank you for your videos I find them fascinating. I am an electrician by trade and was wondering if you have built a turbine that can reach 48 volts at low wind speed? I have a solar system, however often have to deal with mist.
I contend that if you're going to 3D print the turbine you may as well have 3D printed the Ugrinsky turbine, which is significantly more efficient. You don't benefit from the Savonius being simpler if you aren't manually making the turbine and are just printing from existing models.
These are super cool and I'd love to make something simlilar myself! One reccommendation to anyone else making something similar; Put iron cores in the wire bobbins, a nail or a bolt is a cheap and simple solution and the practical magnetic flux achieved by a ferromagnetic core can be orders of magnitude greater than an air core at the frequencies you're switching the magnetic field at - this will put greater resistance on turning but with a good breeze this should be more than powerful enough
As you were blowing on it, I thought to myself, "He is going to make himself dizzy." Just following that thought, I heard you start laughing, and thought, "Yep. He's dizzy already." 😂 Loving the videos. Keep having fun.
Great work as always. Maybe you should make the axle longer and add a second bearing on the top as I had the impression that it wobbles which costs a lot of energy that otherwise would go into production. I could be wrong though.
Keeping it simple works in line with the power generation, these small energy outputs are easer to learn/work with. The bigger the generation, then essential life safe systems need to be in place.
It would be a cool to see a savonius turbine with your radial "feather" type generator on top, or perhaps VS a stack of your radial feather designs with adequate spacing. Just love all these prolific videos and designs as well as testing-floats my boat if you will.
Dear sir. This is brilliant! However, I may have some suggestions, to increase the output, quite easily. The diodes in the rectifier will eat up at some 1,5 volts and produce heat of that, if it is a standard silicone bridge with 0,7 to 0,9 fall over each diode. 1,5 V is quite a deal if the generator produces some 3 V. It is 50%, that get lost. If the bridge is built by 4 shottky diodes with 0,4 V fall over each diode, and just eats up 0,8 V over the bridge, the losses will be decreased by a half, and the rectifier would be close to 75% effective.
From the generators 3 V, there will be left 2,2 V, instead of 1,5 V.
Next thing is to increase the number of turns in the serpentine coil. By doubling the turns the voltage will be doubled into 6 V, and there will be 5,2 V after the rectifier, and the rectifier will just eat up some 13,3 % of the power. There will be a limit, depending of the space allowed for the windings. The general rule is to keep the windings as tight as possible, and as close as possible to the magnet field. A millimeter closer is crucial, and can make the 6 V output into 12 V, and Now we talk. 12-0,8=11,2 , and the rectifier will be 93% effective.
This correction, will increase the mechanical resistance in an equal way, similar to the voltage gain. I.e. It would not spin as easy as before. This was suggestion 2, and 3.
You never get something out of nothing.
But there is a fourth thing to consider: You can always use a transformer, to multiple the voltage, before rectifying. There is no rule that says that you can't get 230V out from a 6V source.
But a transformers efficiency depends on the frequency, and what kind of iron that suits the best.. For frequencies say 30-400 Hz, standard E-I steel-blades works relatively good as core material, but over that, it becomes more and more complicated, though iron powder and ferrites will be better to suit the frequency.
A solution like this with windings at the peripheral, may well produce kilohertz, as well as 20 Hz, and no iron suits this span.
You would also have troubles to handle a span from 3V to 3000V, but all is dependent of the Min-Max spread. This is very complicated, and transformers are not 100 % effective.
My suggestion to make a generator is that it don't exceeds 35 V in a storm condition, though you can use cheap electronics to charge batteries, that will hold the energy, that can produce other voltages for needs.
But consider, that there are losses involved in every stage. Use step up, or step down converters i.e buck-boost controllers, use MOSFET transistors, and the best quality capacitors and inductors, to minimize every loss.
Take care to search for the less needed stages for it's need, and Keep It as Simple as possible.
So dear Mr R.M. Smith: I love your turbine, and the way you preaches simplicity. I totally agree with you.
I just wanted to add some thoughts.
I am a Swedish, over aged engineer, that can't resist work, though I am alone, so I stay halftime. I love to watch your movies, and loves your wonderful laughs.
My best regards.
Transformers will increase voltage or current but not watts. Also a low impedance winding on a transformer will greatly increase the load. The rpm will suffer as will the power
I agree that you can use and Shottky diodes, yes, that's right. But, this was mentioned even in this video here and before. This is a proof of concept, Robert was telling to put the money where he's mouth was. ;) Making it dead simple to create and play with it at later stage. It's not about the perfection ;).
Yes, you can use transformer, but, if you're going that far, worth mentioning that a linear transformer has a higher loss than a high-frequency one ;) - less windings, but you need to understand the MOSFETS and the protection circuit ;). This efficiency would be better than a regular transformer. As you've mentioned about the frequency, you know what I mean about the switching power supply and its uses. Because you don't want switching one for instance in the audio system of a higher quality ;), or medical stuff.
As per your other suggestions, why not do something and show it to everyone? :) You could put your money where your mouth was. :) That would be nice to see as an improvement and you don't have to 3d print even :). If you can achieve a higher efficiency, you can use materials from the recycling :) and will have a better efficiency :).
But hey, it's me and my opinion, you can do what you like ;).
There's a way to wire up MOSFETs or suchlike to yield no voltage drop rectification. Cost and simplicity though I don't know.
@@philip5940 its called a synchronous rectifier.
If all your interested in is a voltage boost then just make a Schottky Bridge Doubler Circuit. It doubles the voltage
It only has 4 diodes and 2 capacitors. I've used them many times
I don't know how this gentleman has not got 1 million subs. Excellent valuable information.
For those who wondered:
1.7 m/s wind speed = 6.12 kmh / 3.8 mph / beaufort force 1-2 / 'light air'-'light breeze'.
cheers mate
Yes so very promising right ?
@RobertMurraySmith
I went for solar so I could have a few of the bits and pieces to allow to plug stuff like that in... I really hope it is indeed possible... generators like that for gateways and other remote devices that can charge at any time of day (maybe couple with a small solar panel to be even more resilient would be great to try too...
Anyway really awesome to feel like it may be just be round the corner...
@@bdanuw Yes, but I'm sure Rob would point out that by the same token, it probably won't survive a gale! For prototype 'works' is good, but for a real thing you'd want to design for the strength of wind you expect.
@@Anti_Woke Or a way to restrict airflow for higher winds
@@ctakitimu I'm designing for use on a small sailing boat, wind speeds up to 40mph - and being able to pack it away when the winds get higher than that! Obviously that places significant structural demands on the system, not just the turbine, whether it's collecting or deflecting the wind.
(Working on sailcloth Darwin funnel, hoisting more or less as the wind conditions dictate, or collapsing the whole thing to pack it away)
You nailed that idea keeping things simple.
I used to over complicate designs to the point where it stayed in my idea book. I've learned to just keep it simple... actually build the dang thing, and complete the project. I live with the design for a bit ....use it, look at it and think of ways to improve it. Sometimes, I'll iterate. Other times, I'm completely fine with it
surprisingly enough that takes a fair bit of learning lol
I think a better question to ask its "can I make it MORE simple/LESS complex". In engineering, complexity is relative, something than may appear to be 'complex' is often as simple as it can be, just not as simple as the observer expects it to be. Of course when you add cost into the equation, the simple vs. complex argument becomes polluted because less complex is associated with lower cost, that doesn't necessarily make the product better.
Looks great Robert,works great looks, it looks allot like the kite I told you about years ago that I bought as a kid, they were army surplus (I was told by the vendor in the golf area of the United States).
They were made of Styrofoam, and had orange and white coloring on the rotor portion so that the colors alternated as it spun. With the wind on the beach they would stay flying without attention, he had them staked out all over the beach, which is how I purchased one. The string for the kite was attached to the pivot point in the center on either end of the spinning drum and joined together as one Kite string.
Thanks for this build! Always wondered how it would do. Excellent.
The kite had an airfoil cross section of each of the two rotors blades. I really like that you have revisited this with flare.
Your rotational ventilator cap generator was great as well.
And the later variation with it's isolated salvage transformer pick up coils was a stupendous build also. Great stuff.
Would love to see how one made of industrial insulation 10 feet tall and five in diameter would do it, but hey all you need to do a scale of the math right?
But still I wonder what a big beast might do.
Honestly I could say I would really love to finish my years living in an active version of a dutch windmill with this thing for a rotor built into it.
Or maybe just a dutch windmill with him create parts, there's a lot of room inside of one of those, perfect for me.
I always wondered how a design like that would work at the peak of the roof on my house . ...
Great video and some really excellent tips on design for both new and old designers/makers. Would love to see the output of a small "wall" of these under real wind conditions. 👍👍
Thanks!
no - thank you mate
Commercial vehicles, such as vans that use a Fletner system to extract air from vehicles that carry noxious chemicals, or carry animals, would benefit from this to charge their batteries on EVs or a leisure battery on motor homes.
I’ve been pondering this ever since your efforts using the microwave motors a few months ago.
Love your enthusiasm 👏👏👏
Dear Robert, I stumble across you and your work on TH-cam and Thingiverse all the time! You amaze me with your intelligence and ingenuity and you brighten my soul with your infectious laugh. People like you are what makes this world a better place! That isn't poppycock, isn't that what they say over the pond :)? It feels like a small world at times when I see a really interesting 3d print and it is you. Well that just happened the other day, and that was when I saw that you lost your beautiful bride, I watched her video with a tear in my eye thinking what you are going through. I never leave comments ( seriously never ) but for some reason, I felt a pull for me to reach out just to let you know, that there are people out here that care!
I was taught the "KISS THEORY" at a very young age and it has served me well for many years.
it is a good way to go for sure
Same here, it served me well for decades.
The judge said I can’t do that again
Rock and roll all night and party every day.
@@jamesjallalabad3783 😂😂😂
6:20 :) i can feel same happiness as you Robert. Thanks for so mind blowing videos..
Never a truer word spoken, I have many good intentions in the garage waiting to be finished. But I do see the benefit of a 3D printer to complete most of the hard work.
I just set it going and go and make a cup of coffee lol
Fantastic videos on projects using basic physics and electronics. I like just watching the great refreshers on basic electrical components.
Excellent display of the simple and effective ways of energy production, I would recommend this type of home generator.
I think the easiest way to get a project like this going for parole is with some BMX bike rims or even big racer rims . All the bearings and balancing is already done and power at the rim is what it's all about ! I think i might get my thinking cap on and work out how I am going to fit a serpentine coil cos I am a huge fan of that idea!
Thank you for the video.👍. The one I want to make, I will put a longer axel and a nut on top, so it not flying away 🙂
What you said Robert is a fact. Simplicity of design is what makes things work beautifully. Making it easy for others to copy and use the idea and pass it on and on. The copper coil wire needs to have a thin layer of silver on the outside of the magnet wire then the insulation finishes the magnet wire specifications. The silver plate really increases the efficiency of the coils. .
Job well done fella too. vf
Hi Bob. I really enjoy watching your videos, and i learn a lot from them👍 I am a little bit like you, i like to explore, and invent, curiouslike heck, but, a novice compared to you. Used to work in a scrapyard ( my favourite place to search for projects 😃) A few years ago i bought a cooling fan, probably in a cooling tower, it has a 65 cm. fan, who is very sensitive to wind, just by walking with it, it starts to spin ( gave me a blue nail, when i was moving it about😝) So, i need some help from you sir, please. From the motor there is nine wires coming out, ending up in a connecter rail, two yellow, thin ones, the rest goes into: w2 u1 u2 v1 v2 w1, and ground. Have ohm,ed them all out, no problems, no problems with the ground, this is Denmark, no problems with the wind 🤣Can you tell me how to hook it up, so i can get tree power out of it? Thank you.
It's so enjoyable to watch you do your thing!! Love every second!! Thank you!
Hi Robert. An excellent prototype and presentation. I'm a Geophysicist and the serpentine coil has got me inspired. We do EM surveys to find metallic minerals. Now drones are the go. So I will look into the transmitting and receiving from such an efficient coil. Yes frequency maybe the issue.
I am intersted in how you get on with that mate
@Robert Murray-Smith Thank you Robert. I will try and be as open as you if I manage to use this excellent coil in real surveys.
In a windwall configuration, if you stacked them, design units to rotate in opposite directions. Each unit could have magnets on the top, and coil on the bottom, and alternate the rotation directions as you stack them.. The more you stack the more power you get, and each unit gets double the effective RPM because it's rotating in an opposite direction of the one above and or below it.
Smoke another one. The next idea will be much better.
A stacked counter rotation version I would really like to see. I believe just inverting one of two identical units would result in the one on top rotating opposite of the one on the bottom so your build cost would still involve only one design. I believe it would however require including a axel bearing on both ends rather than only on the generator end as shown. This would be a great project to upscale test.
Exactly what I was thinking. Add cowlings also.
A rim-speed generator built-in to the turbine of a wind-tower of the kind you've been prototyping recently seems like a superb way to go for many applications.
I am liking the way it is performing for sure
@@ThinkingandTinkering hi. I have one idea and I'd like to know your opinion. What do you think about applying venturi pump to hydro power dam? I mean, if we could connect venturi inlet to discharge of dam we could create 7/24 environment friendly wind and by applying one of the super efficient wind turbine to air suction for creating energy. But I have some doubts about if it will decrease efficiency of hydropower. What do you think?
@@ThinkingandTinkering I didn't realise you'd done it, I thought you'd only tried it with a PC fan as the generator!
Edit: Such as in 1835
Very good presentation, I thoroughly enjoyed it ,Thank you....
Dr. Smith, your selections of videos would compilate into a complete system. I'm ready to see a whole system built by you. Generator and storage. Just like your wind turbine make our world spin. LOL
I'd love to see a video where someone (a viewer maybe?) sets some system up in their garden and actually charges a home system with it. Is there any RMS forum where subscribers / viewers share their examples? I fully plan to have a go myself someday and would love to share that experience somehow as well as see others.
Angelus runs a discord page which can be found here mate
discord.gg/aFuTTdy8J8
I don’t expect a garden size installation to power my whole house but I would love to figure out a way to have one that was attractive and produces enough to say run some lights in my garden.
Can't wait to make my very own! Love the idea!💡 Thank you for all the brilliant videos 😊
awesome mate and cheers
Putting the magnets on the rim makes a fantastic more efficient fly wheel brilliant. Onwards and upwards 👏
cheers mate
I'll never make any of these things but he's such diamond geezer that his joviality makes my day.
I have had for years a desire to make an injection molded savonius turbine had can be put up on the roof by the costumer himself. Thank you for showing that!
That would be cool
Great video but I really wish you would have shown how you connected the external electrical wires to the internal components such as the coil.
Amazing Work!! Great proof of concept & love the KISS method. Would the complexity of additional power generation over complicate the design? Perhaps, modify the top plate for magnets also w/2nd coil plate; the required longer shaft & bearing may also stabilize the unsupported topside of the fan.
I think the best compliment I can pay you is to compare you to professor Eric Braithwaite who was amazing. Great video's wish a tv channel would pick up an option for a tv show of what you do. Never stop.
Yeah, I think many of us struggle with overcomplicating things. So, thanks again for another great reality check. Keeping it simple gives surprising good results.
for sure mate
Yes, simplifying things is the way!!! I managed to simplify radius calipers the other day, down to one moving part. Now they look deceivingly simple for what they can do lol, but now I need to prove their capabilities with a better refined version.
I loved the fact that this could just be blown by a person 🤣 Incredible results, Rob!!!
Excellent, thank you for sharing. We waste so much free energy we could harness, e.g., the hot moist air blown out of our AC condensers; we could harness the wind, heat, and the moisture from it.
New sub here...love it! I built my own design and manufacturing business a couple decades ago. Simplicity is Godliness! Agreed! It's what USED to make Mercedes Benz, a Mercedes Benz! Simplistic, efficient cars that would run forever. Use quality materials, minimize moving parts and complexity and viola, you have half million mile cars as the norm. Today? They are techno piles of junk after a few years. Rain sensing wipers, active headlights auto dimming this and that. Just heaps of complexity to fail and a fortune to repair. Old MB headlight went out? A new bulb was a few dollars. (U.S.) New MB headlight goes out? You have to buy the entire housing with this plasma generator and radar module etc etc $500.00 please. No thanks.
You really convinced me to try the snake coil. This really is a magic video. Do think about bearing on top because now you have a lot of flutter resulting in wasted energy. Thank you, as I said, magic!
Killer build Rob!!
You can switch your atmosphere energy collector with a reed switch actuated by the permitter magnets on this turbine.
cheers mate and nice!
About 7 years ago, I designed and built a hot water heating system, for my house, to supplement the propane heater. It was caveman simple, with me knowing only minimum about efficient heat distribution. That system, today, is somewhat increased in complexity, but efficiency is such that it can complement or replace the propane system at need. Now that I've started designing an electrical system with similar goals, I'm glad you've reminded me to KISS (and to laugh... important to have fun when tinkering).. I've a tendency to start too complex in the design process (much to my own detriment, often enough). I've got some thinking to do
I would be a much better professional, if those videos where available at my electric student time.
Thanks Robert, and keep it simple and executable.
Hi, may I suggest that if you were to deflect the wind away from the returning blades on the opposite side of the working direction of the wind by adding a directional tail to it you will enhance the efficiency of your turbine a great deal! Vertical axis wind turbines all suffer from this to overcome the force of the wind on the blades on the opposite side of the working direction and all future VAWTs will benefit from this addition. I am currently working on the concept with astonishing results.
an observation i had while watching it operate with the air blown onto it is the magnets were lifting the rotating assembly which would reduce efficiency (LOL) but also easily and cheaply solved by having means to hold it in position at the top.
great video rob :)
You enjoyment in testing your experiments is absolutely infectious! Keep up the great content Robert!
Yes sir! Simplicity is always overlooked.
That's fantastic. Thanks for that.
I want to see the next video where you blow on the LED to make the turbine spin :)
Hi Robert, thanks for all the great videos you produce. I’m looking for video 1312 and it seems to be missing from your back catalogue of videos!!
Thank you. lol few hours after watching this I'm half way to finish making one. hopefully getting decent volt too.
So, what about doing a Print that would sit at the bottom of one of your wind catchers, the tower with the flaps.... That is based on the same idea. Something that is about 10cm thick that has vanes and the rim mounted magnets with the serpentine coil. If you are going for rim speed something larger in diameter would be awesome, but I don't know how big your printer would print.
Something about 50cm in diameter would be really cool.
Speed at the rim will go up exponentially at the rim with an increase in diameter.
If I ever come across the pond I would love to come play in your workshop for a day or so.....
Iam fairly new to your channel, though I'm not a tech kind of guy, I find this very fascinating and certainly challenges my thinking a d you make it look so easy...thank you for that. ❤ subscribed!
I'm always 50/50 on the idea of simplicity in engineering. Its benefits are obvious, but that same mentality would rule the car, plane, even computers as too complex to be worth it today. One can try to point to the goals of Mercedes and the Wrights being exceedingly simple compared to where we've carried those technologies today, but that's just the thing. It's nearly impossible to get simple devices off the ground these days. We're so jaded with so many "mature" technologies, fledgling tech and alternative paths have a hell of a time competing, especially since engineers are very fond of the stagnant legacy "if it ain't broke, don't fix it." And that's not even touching on problems created by market behemoths having every tool possible to shoot down the little guy with governmental help in some cases. There are a lot of alternatives we should be looking at to replace windmills, yet were still using the same basic design used in a pedestal fan because the old farting dog we named Industry knows it has the best approach if no superior method is sought and found. And with no real competition, why innovative?
Where was I going with this.....
End of the day, something shouldn't be simple or complex, it should only have the level of complexity it needs to function, plus the safety factor.
Edit: And then there the "best solution is not to have the problem in the first place" people. Anyone who seriously invests in that brain dead platitude should be handed a gun with a single bullet and reminded that, according to their own philosophy, they now have the means to solve every single problem they have, have had, and will ever have, so how about a demonstration? The rest of us have things to do.
no mate simplicity Is always present - it is made as simple as it needs to be - a computer is a stunningly simple thing - it is just switches arranged small and that's all it is - when it comes to manufacture the approach is always the best part is no part and the best process is no process - a ton of effort goes into reducing component count - I think you might have some confusion between simplicity and simple
If the main subject is "keeping it simple an cheap" there will be no progress. Because simple and cheap is not progress. Savonius can only become more efficient by making it more complex. Efficiency must increase with the same swept area.
@@HendrikStander-v1l Largely my point.
Further, a bit surprised RMS gave me pushback. For all the times he's commented about people doing exactly what I said whenever he makes a new generator, expected a different reaction.
The human talk to suit himself. Sometimes by closer inspection one can see what suits the human. There is a saying " in the land of the blind the one eyed is king
Hi Custos. If nothing in a design change , the result stays the same . This channel is about marketing of 3D Printing. To do the print you must create a 3D model of something using CAD. The CAD file is then converted to a STL. File this file format supports 3D Printers . So if I want to sell a 3D Printer to a novis I must have exciting things he can print. So If I have STL files that I can supply all the novis must do is learn to operate the Printer and load the STL files. So if you are a turner and machinist and you know CAD you can do CNC programming also. So for the novis everything must be simple and cheap
I was thinking of something similar, though with a sphere with angled slots. After seeing this one in action, I may be rethinking that idea. Can't get much simpler and doable than what you have there. Thanks for the video Rob! Outstanding!
Great video! It would be very helpful to set up a test stand where standard size VAWT models could be compared. For example, take out the Savonius turbine and put in a Ugrinsky, adjust the load to identify the load and RPM at which each model produces the most power for given wind speed. A service where standard size VAWT models could be sent in for testing would be wonderful.
Awesome stuff Rob..really impressive performance for such a little unit. Thanks for all the hard work you do bringing these great little devices to us!
THIS IS THE ONLY TURBINE I USE AND THIS IS THE ONLY I KNOW FOR THE LAST 30 YEARS HA HA HA HA .
That's amazing. I'm thinking of how to build an array of these using paint buckets from the hardware store. Thanks.
I experimented with alternative energy for years. It turns out solar is the way. Quiet, simple, no moving parts, works very well, cheap. It is truly “free energy” and it is readily available. It turns out the true conundrum and unsolvable problem is cheap or free (desirable) land. Cool toy though.
Like great and good, best is better; thank you for underrated simplicity.
Very cool! I am an rc glider guy and always wondered if anyone is looking at the dynamic acceleration that we take advatage of for dynamic soaring. A wind turbine placed on the same angle straddling the front side/backside of a ridge that we fly on would provide a constant acceleration as all sides are flying a down wind pass.
That contagious laugh gets me every time😂 Thanks buddy 👍
@RobertMurraySmith After watching your 1860 video where you mentioned 3 phase, I looked into the difference in outputs. Since 1 benefit is higher amp output, would it be worth the additional material / complexity to bother with it? I agree with keeping things simple, but also want to reach for the most potential I can achieve. As others have said, wind speed of course has a great deal to do with how this will work for most people. Unlike you, where I live the average wind speed ranges from 3 - 5 mph at 10m. So your demonstration was fairly accurate of what I would have most days. I fear that this is another path for energy independence that will not be worthwhile for me to implement, however, I always appreciate the additional learning and creative projects you work on. Thank you.
I love it! I've been interested in trying a lot of different generator designs. I WILL try this design. It is practically begging to be mass-produced.
Your videos truly inspire me to try new things. This is awesome!
That's really great stuff!
Correct me if I'm wrong, but the induced current is strongly related to the magnetic field strength, so the output would be greater if you turned the base upside down and move the bar to poke out the opposite side of the base. The magnets would be 3-4mm closer to the coil.
I just now (22:00 21/03/2023) happened on your channel and is going completely nuts 😂. Having been considering wind energy to supplement my solar system during the night time, this obviously looks like the solution to my particular setup as we have wind in abundance. Now my question is not merely to ask where to get your stl files but where to find the formulas to calculate the curvature of the "blades" for a specified circle as well as the number of magnets and the coils for that circle. I'm restricted to a maximum circle of 210mm (r=105mm). Thank you in advance for your help. 😊
BTW I have subscribed to your channel even before writing my comment.
have you tried putting a spiral winding around the outside of the cylinder i could help guide air flow to where its most needed and keep animals from colliding with the turbine portion sort of like a rudder and funnel
you could put magnets on the top and bottom slightly offset to reduce drag while doubling the amount of coils and maybe replace the plastic winding bits with iron cores as i'm pretty sure that would make the field stronger as it passes, to keep the upper coil stationary just add a C frame holding the top and bottom coil plates as a set
I’m only 30 seconds into this video and I already love this guy.
Great results for such a simple and effective design.
There was quite a bit of rocking I noticed could this be mitigated by extending the rod through the centre.
Perhaps to accommodate the stack you suggested. Also wound having another coil on top be an idea?
Keep up the good work and keep on TnT 😊
I was thinking something similar mate
How about a bottom AND top magnet and serpentine coil assembly? It might be more balanced? Your laugh is infectious by the way. Much as is your unmatched enthusiasm!
Wonderful build! 👍
I've seen some great work with very large gear ratios using VAWT's and the torque they have. Could you do an episode on that?
I have done quite a bit of stuff on gears and gearing in general but nothing specific to VAWTs
I remember large scale of these stacked on top of each other in orange groves and rosemary groves in Florida in the 80s most were not still in operation at that time and I always was curious what they were I ask someone who worked the groves a old timer he said they would power the Irrigation pumps free electricity I now under stand
I love the project and will consider it as one of my first projects when I get the 3D printer I am planning on in the near future. I would be interested to see the effect of adding some low reluctance steel strategically to boost the magnetic field.
You are my kind of designer, simple concept easy
Simplicity is the essence of genius - Albert Einstein
Capex, maintenance, labour, all easier that way. Got to love it.
Awesome video Robert very interesting project!!!!
Loved watching this even though I hadn't a clue what it all meant!!! Fascinating. What would your gizmo power on a good Yorkshire windy day?
Watching you laugh as you use your own breath to power your generator and light an LED makes my day. Please keep on keeping on!
I remembered the three piglets and the wolf fable... "open up or I'll blow and blow untill your LEDs melt!"
lol - cheers mate
@@partciudgam8478 I just saw a Far Side cartoon- The three little pigs were in a brick house looking out the window at the big bad wolf handing a fist full of dollars to A Kool Aid pitcher with legs.
Would you expect to see any more efficiency/ gain by increasing the size the diameter of your motor in comparison to your turbine?
You would get a wider footprint for better stability and anchoring, but would you increase output?
Im thinking increased diameter flywheel/ generator on a clutch.
Have I departed from KISS here much?
Agreed on the simplicity needed to actually manufacture something. Although, clearly we reach a point when the simplicity goes out the window, as it does for engines and power steering systems and the like because the demand for robustness outweighs the easy of keeping things simple. Looks like the automotive industry figured that out a long time ago but, I do think they go overboard at times lol. To start with, your 100% correct on simplicity, to go forward however requires more complexity. If they can build millions of cars and have been for over 100 years, then I reckon anything can be made cheap enough to manufacture given time and infrastructure.
simple and simplicity are not the same thing - simplicity as it needs to be is a quest for reduced process and component count
These would be perfect to place on the corners of the compressor for an air conditioning unit. I live in Florida and would love to scavenge a little electricity from the AC running most of the day. Thank you for the great videos!
nice!
Another thing about the design is too that imagine doing this rotation section for generating power on a bicycle or even a foot style pedal from a old fashioned lathe.
Very cool. Wouldn't resistance slow it down soon as a load was hooked up to it like a charger control set at like 13.7V for charging 12v better bank or does that led represent the same load of it was set up to charge 12v battery back? I made a wind turbine and would spin crazy showing tons of power on the multimeter and it still works but definetly slowed down when hooked to a load had to add more blades for more low end power and the blades are 3' long I'm be to the is why I'm asking. And I'll like your design I'm just wondering. Love your channel
You are truly a breath of fresh air, electrifying, the result of a K.I.S.S. I ❤ it.
That is awesome!! Great point on making it easy to reproduce.
cheers mate
Savonious cool! Idea here. Wind speed reactionary savonius stack of multiple units within reasonable limits rides within protective tube. Lowest operable wind speed entire stack is raised/higher operable wind speeds the stack lowers fewer stacks stay exposed.
Thank you for your videos I find them fascinating. I am an electrician by trade and was wondering if you have built a turbine that can reach 48 volts at low wind speed? I have a solar system, however often have to deal with mist.
Love your enthusiasm 👍
Rob You are on to something with this latest subject and this design A great project Al
I contend that if you're going to 3D print the turbine you may as well have 3D printed the Ugrinsky turbine, which is significantly more efficient. You don't benefit from the Savonius being simpler if you aren't manually making the turbine and are just printing from existing models.
These are super cool and I'd love to make something simlilar myself!
One reccommendation to anyone else making something similar; Put iron cores in the wire bobbins, a nail or a bolt is a cheap and simple solution and the practical magnetic flux achieved by a ferromagnetic core can be orders of magnitude greater than an air core at the frequencies you're switching the magnetic field at - this will put greater resistance on turning but with a good breeze this should be more than powerful enough
i love your information on this subject. however, is wiring up this simple serpentine coil any different to a 3 phase AC setup?
As you were blowing on it, I thought to myself, "He is going to make himself dizzy." Just following that thought, I heard you start laughing, and thought, "Yep. He's dizzy already." 😂 Loving the videos. Keep having fun.
Thanks for sharing. Power to the people!
Well, we always knew RMS was full of hot air! LOL Love your projects.
Great work as always. Maybe you should make the axle longer and add a second bearing on the top as I had the impression that it wobbles which costs a lot of energy that otherwise would go into production. I could be wrong though.
I think you are right - but my end goal is a wind wall which takes into account what you are suggesting
Awesome. I'll try that one! Thanks for sharing :)
Good engineering sense!
The best is the enemy of the good!
Keeping it simple works in line with the power generation, these small energy outputs are easer to learn/work with. The bigger the generation, then essential life safe systems need to be in place.
absolutely
It would be a cool to see a savonius turbine with your radial "feather" type generator on top, or perhaps VS a stack of your radial feather designs with adequate spacing. Just love all these prolific videos and designs as well as testing-floats my boat if you will.
Cool idea
I wondered when you'd get round to This. Yin Yang ☯️ Very old .A good study .
Excellent 👍 very interesting stuff.