Magnus effect VAWTs need motors to spin the three cylinders to create the effect. The big problem is that the cylinders need to spin one direction when moving downwind and the opposite direction when moving upwind, so each cylinder needs to switch rotational direction twice for every rotation of the VAWT rotor assembly. In the video, the equipment below the VAWT rotor is the timing mechanism that switches the rotation of the spinning cylinders (three switches for three cylinders). The timing of the switching has to be changed as the wind direction shifts. At the start of the video the phasing/timing needed to to be adjusted to match the fan placement in order to work properly. For outdoors use a weather vane is needed to adjust the phasing as the wind changes direction. The lift to drag ratio, that determines efficiency, (as far a I could find) for Magnus effect cylinders is between 1/1 and 7/1. For cloth sails on sailboats the best L/D ratios are about 10/1. For large HAWT turbine blades L/D ratios can go upwards of 100/1.

Look into the Ugrinsky turbine, Robert Murray-Smith has some videos on them. They were originally meant to work in water. It is supposed to be almost twice as efficient as the Savonious configuration. I made some Ugrinsky models 8" diameter using 8" and 3" schedule forty PVC pipe cut on a table saw. The end caps are clear Lexan, glued and pop riveted. They are sturdy enough to work in water and spin pretty good in wind. So far it's just a kinetic wind sculpture, still waiting for serious wind.

Excellent video. I hope your channel grows. You take a realistic, common sense and intelligent perspective and present it well.

My first wind generator was a Winco Wincharger 200 made in the 1930s or 40s. It had kind of like spring loaded brake shoes, so when the generator would spin too fast, these shoes would come out into the slipstream and slow it down .

I've designed a couple of vertical wind turbines. I haven't put a load on them as they were models, proof of concept. One is pvc pipe with 8 blades the other is 3 blades using an airfoil. Both seem to work, but not where I live. Sunny and windy in summer. Foggy and still in winter. Solar is working fine without the turbine.

I like the SHARP CYCLOTURBINE

Gratulations guys. That is unexpected but amazing.

Honestly for me the turbine is the least of my problems I havee lots of space for smaller turbines, what I really need is a good, cheap small generator that fits it. Using NEMA steppers right now but efficiency is like 30%

Take a look at ridge blade turbines. What i like is it takes advantage of the entire surface of the roof plus it blends well with the archtecture

Savonious VAWT are decent low RPM drag devices, though I would not use the collapsible sail used at the start of this video for reasons outlined later below. Like the old prairie multi-blade windmills which were also low speed, a low-RPM Savonious can be very efficient IF and only if you couple it to the correct load type that wants high torque at low speed as an input. Prairie windmills pumped water up from a well. Pumping water is a wonderful high torque low speed load so it's a good match. Most off-the-shelf electrical generators unfortunately are compact for reasons of economics: less material especially copper, good match for the most common shaft RPM input speeds - medium to fast. Therefore commonly available generators require their central shaft to rotate at high RPMs, moving the magnets thru the field of the copper coils quickly as the best match to their own small diameter geometry. Requirements for high shaft speed is a horrible fit for slow turning multi-blade or savonious wind turbines. Gearing up the shaft to a higher speed in order to use a small diameter generator introduces materials cost and frictional inefficiency. If you make the electrical generator larger in diameter, then it can use high torque at slower speeds and is a better match of the geometry of the generator to the capability of a low speed savonious drag type VAWT. Some experimentors at a university in Brazil years ago, had reasonable success with bicycle wheel sized generators and savonious VAWT's. Instead of using a collapsible sail config for VAWT blades to reduce blade return path drag, I think my own design using a partial wind shroud on the upwind blade return path can work well, especially if the shroud also diverts more wind into the downwind path captured by the downwind moving blades. I also have designed my VAWT to push water around, not generate electricity, which is a better match for a low-RPM VAWT. The trick certainly is to find a very good use for moving water in the first place, which I believe I have, just as farmers on the prairie did a century before us, though unlike them my use has nothing to do with irrigating crops or watering livestock.

Regarding the one with the three pillars .. I think it is important that the fan generated air flow ("wind") be moved around during testing as that is what it does in real meteorology.

May I ask what are your thoughts on, Rige Line air generators?

Dude, I saw a video recently, of a vertical wind turbine that used a stack of cones, small hole up, and a shield around the back side, so the wind gets funneled up, thru the blades… I was very impressed…

I figured out something. If there were two vawt turning opposite directions and they were closer together the air would speed up where the blades were catching the wind. That would make up for the blades only catching air on one side.

The problem with this type of Turbine is that is known as a drag turbine , they do not spin faster than the wind speed.

Dude, first video I’ve seen, of yours. Your channel fits my 2 passions… I believe “school” is where we go to learn how to learn. Adult education is essential. I’m also “anti-corporate,” so anything to get away from the corporations setting the cost to exist… I don’t think ppl really understand that aspect of off-grid and renewable energy, and how it can be used in town, to reduce their energy bills. There’s no reason you can’t run your AC off grid, on a solar/battery system. A battery is any way to store energy. (Hydroelectric dams are “batteries”) For a stationary battery, weight isn’t so much of an issue. Use a solar to raise a weight, and as you need electricity, use the weight to generate power when you need it. Simple things, like running AC off grid, get rid of the BS excuse for not transitioning away from fossil fuel corporations, that our grid can’t handle it… Imma call you a teacher… I’ve chatted with other KZfaq creators, called them “teachers,” and shocked them, but that’s what you’re doing… Teaching adults is tough… Best of luck…😉

The last you show with papers towels the fan is running to max at 50 to 60 kM the wind speed,

There are not two but three axis in 3D space. There is the LATERAL axis turbine. That is where the wind passes across the top of a horizontal axis roller perpendicular in direction to the axis of the roller turbine, like a roll of carpet laying on the floor and the wind causing it to turn on a horizontal spindle. So then you have rows of finned blades mounted on a roller supported with a bearing on each end. The support is offset so it can turn away from the wind. The wind blows for example from the northwest. The roller turns away from the wind as best it can causing the roller to be oriented northeast/southwest and the spinning roller is spinning so the top of it is moving to the southeast by the force of the wind. As the wind direction changes to northeast the supporting spindle, supporting the roller at each end, turns toward the northeast and the roller is now oriented northwest and southeast. The wind flows over the top of the horizontal finned roller. Instead of generating electricity the roller drives an pneumatic pump which stores the energy as pneumatic pressure until it is needed. Only then does it convert the pressure into electricity. ..

yes, VAWTs can take wind from any direction but that means nothing if its efficiency is less than HAWTs'. a VAWT takes the energy with one blade while creating drag with the blades behind, and if you have wind coming from multiple directions at the same time into the VAWT then the air itself is cancelling each other out and reducing the energy the VAWT can capture. HAWTs can rotate to get the most energy from the wind. In a HAWT, unlike the VAWT you have the 3 blades capturing energy from the wind at the same time. So even if the VAWT can capture wind from all directions that is useless if only the blade that face the wind first is the only blade capturing that energy. There is another design for HAWTs, the Ridgeblade that takes advantage of an effect created in the roof. that collects 220% energy.

I DON'T WANT TO STEP ON HUMAN TOES

Ayeee bud I'm up here in canada we got sooo much wind I cannot wait to use it to get started with my own firm.. saw this cool design from Europe the tulip wind turbine they're also vertical and look great in many different colors.. wondering what's your thoughts on em they can be as big as 8 ft tall There is a company from Denmark that's placing these energy nets at the too of tall buildings they have vertical turbines inside while also having solar at the top to merge solar with wind 😍🙌 Lemme know your thoughtssss Cheers 😁🙌

The best one is the one that adjust to wind speeds

just a clue ,we do what they do !!

The sail design is interesting but why would it need be cloth material and not a light plastic that was hinged?

I just started looking into wind because I heard of Harmony Turbines / Leading-Edge Residential and Small Scale Wind Turbine Systems

Here is a design i just saw that is interesting

5:33 He isn´t "motor-driving" this thing (the carrier of the 3 cylinders), but still, each of the 3 cylinders is motor-driven itself, and has a tiny electric consumption. but that´s the small price for the highly elevated turbine-efficiency (the spinning carrier of the 3 cylinders, is what drives the generator), and the much bigger electrogenerating gains. He also has adopted some new principles since then, making it even more worthy. HAWT-design is mature by now, not changing much, but HAWT-grouping, and clustering of such groups is still not finally researched yet (initial results look very promising), and still bears lots of potential (if you don´t have one single HAWT, but 50-100 instead, that is...). In other words, when building something for a single household, you´ll get happier with a vAWT.

Please look up Peter Sharps cycloturbine. It is the best vawt design ever.

There is a motor driving the base, but not the cylinders.

Venturi Effect

The Harmony wind turbine looks interesting, based on the Yin Yang design

I have a brand new VAWT concept which slammed into my brain on the fourth of March 2023. It beats ALL the vawt designs hands down. I think it will beat the horizontal designs also. I don't know what to do. I've been thinking about turbines for over a decade and then suddenly it all came together. Who do I talk to? I want money. I want fame. I want it to be available to everybody. I think this could decentralize power for most people. I think this could change the world of energy production. Not for automobiles but for powering homes and businesses in all reasonably windy areas. The objective of a vawt is to create a wall of resistance on the power side and create zero resistance on the returning side. I've nearly accomplished it. I expect the powered side to be about 98% complete and the return side to only occupy about 4%. I don't think you can get much more of a disparity of wind exposure than that. I don't know what to do. ..

Aeromine

Its dosnt chance anything, its works but has reduced power output of a normal 3 blade turbine,, but very usefull for micro turbine use.. at home.

Great devices... Keep burning your brains to come up with inovative designs, the best ones will be produced by Chinese manufacturers and you won't get a dime.

INTERRUPT

your next video has to be on “Harmony turbines” out of PA. Harmony turbines is exactly what you’re talking about the innovation self Furling scopes.

I really appreciate your review, we keep on trying. you should review my creation, i would not disappoint . mine is lift and drag folding foil

That cloth wont survive wind shit idea