If you enjoyed this video, you're going to love the interactive courses from Brilliant! Use my link at brilliant.org/ziroth/ for 30 days FREE and 20% off for the first 200 subscribers! Do you know of any other real places the Fibonacci sequence appears?
Could you make some In Depth Study over Magnetic Recirculation of Ions as Thrusters for Dirigibles as the ones from LokeedMartin or Flying Wales. Taking in consideration that Constant Recirculation of Condensed Atmosphere Humidity could generate much more Passive Ions Production from Water Molecular Charge Interactions with Silver Particles. Basically the more Electricity the more Ions, the more Humidity the more Ions, the both of them Recirculation thanks to Magnetic Separation (Iron Nitride) would Build Up Ions which would be Subsequently Accelerated by Electrical Current Generating Even More Active Ions Thrust... It could becoming An Efficient Low Cost Propulsion for Low Atmosphere Commercial/Defensive/Scientific Dirigibles... [I think Plasma Channel Made already a Video upon that... You should call him and Make a Collabs... He Seems a Fairly Nicely Swaying Guy... He have Good Vibes over New Technologies Research & Development]
conventional wind turbines have a lot of drawbacks (noise pollution, threatening endangered species like bald eagles and owls, toxic materials, landfill waste) and are only being implemented successfully in areas that have less severe weather and more wind. An Archimedes (or logarithmic) turbine would be more efficient, last longer, and cause less damage to the environment, It's an idea worth investing in.
@@artcurious807 I also hate Regular Turbines, but you need a Really Fucked Up Howl or Bald Eagle for Endangering themselves with Blades as Big as Palaces Moving... Theirs Little Big Eyes can See a Rat even from Miles Away... They should be using them for Closing the Rat Lines from WWII, not Using them as Expedient for not Making Turbine Technology Progress... There will be always something else for Carbon Investments... We don't have to Fear Change.. Is The 'Inhumane Status Quo' which have Feared Us...
@@artcurious807⚠️ God has said in the Quran: 🔵 { O mankind, worship your Lord, who created you and those before you, that you may become righteous - ( 2:21 ) 🔴 [He] who made for you the earth a bed [spread out] and the sky a ceiling and sent down from the sky, rain and brought forth thereby fruits as provision for you. So do not attribute to Allah equals while you know [that there is nothing similar to Him]. ( 2:22 ) 🔵 And if you are in doubt about what We have sent down upon Our Servant [Muhammad], then produce a surah the like thereof and call upon your witnesses other than Allah, if you should be truthful. ( 2:23 ) 🔴 But if you do not - and you will never be able to - then fear the Fire, whose fuel is men and stones, prepared for the disbelievers.( 2:24 ) 🔵 And give good tidings to those who believe and do righteous deeds that they will have gardens [in Paradise] beneath which rivers flow. Whenever they are provided with a provision of fruit therefrom, they will say, "This is what we were provided with before." And it is given to them in likeness. And they will have therein purified spouses, and they will abide therein eternally. ( 2:25 ) ⚠️ Quran
9:14 The green thing is NOT a savonius turbine. A savonius has to have a gap between the halves through which the wind can flow to the other half that runs towards the wind. If the gap is missing it is a pure resistance runner like for example an anemometer.
@@dennisbecraft1303 In his patent document of 1926 in Austria, Savonius included drawings of a version without a gap as well as a dozen of versions with a gap. He explicitely explained in the text that the gap significantly enhances the performance of the rotor. In his patent document of 1930 in Germany a specific layout of the gap is the essential feature of his patent claim.
The most important metric of a wind turbine is the levelized cost of energy (LCOE). This metric allows you to compare all forms of energy generation in terms of total energy return during the lifetime of operation per investment dollar spent.
Not at all. You fx also has to add the local climate by temperaure and dirty air, where there are many buildings. That give people a lot of bills, they are not 100% and also needs for expensive beds.
@@jensholm5759 that is all accounted for when calculating LCOE. However, one Interesting thing that LCOE doesn't account for that I am interested in when designing my turbines is the cradle to grave environmental impact of mining, manufacturing, assembling, transporting, installing, operating, and decommissioning each turbine. It's best to keep these in mind during the design phase because ultimately you want to minimize the total emissions and negative environmental impacts involved.
lets for a moment ignore the fact that wind turbines do affect the eco system for birds and other wildlife... most wind turbines do advertise a life span of 25yrs (which is true in a controlled environment) but we're almost at the end of some of these wind turbine government contracts and the true cost comes out, on avg these wind turbines last 1.5yrs- 2yrs on avg before needing to be replaced and the efficiency actually drops to less than 33% within the 1st 3mts of operation (on avg every 8-10mts the blades is replaced).. this is all thanks to the blades deteriorating much faster than expected, you can use the strongest materials known to man and this would still happen.. the other factors is the weather pattern and storms, in the real world when storms hit wind turbines they need to be replaced, even if you can't see the damage there is micro cracks all over the blades and 90% of the time the motor/ generator is damaged.. now if you think burying nuclear waste was a problem well getting rid of the glass fiber blades is a much MUCH bigger problem (in terms of space requirements) and no they don't biodegrade... as a comparison wind energy takes more ppl and more jobs is created than nuclear energy BUT because there is over 100times more ppl required to make the same power so that factor alone makes wind power more expensive than nuclear energy....
Very interesting.Takes me back to June& July 2000 when I was part of a group of teachers that visited the USA to learn new methods of teaching Science, Maths and Technology.That is where I first learnt about Fibonacci.VERY VERY interesting that nature has the aswers to many of our questions about our lived world.
To produce those spirals, a living thing's cells need to be able to produce a consistent angles of an irrational rotation. Phi happens to be a good ratio for producing dense packing on a growing surface area. Keep in mind, though, dense packing on a growing surface area ALMOST ALWAYS produces a spiral of some kind if it's not a flat surface.
It doesn't have to replicate the exact number. It just has to get close enough to work. Your computer doesn't account for the whole irrational sequence when it draws a spiral on the screen. The plants don't have to either.
@@Elrog3excuse me, you don't need the perfect 1 to 1 distance between each point of a sphere to call it a sphere, you need to only get juuuust close enough, yet a perfect sphere produces infinite god damn pressure, as it has infinitely small curvature.
@@Elrog3 It is, but it's one of those "sounds right" factoids. Rates high on the "truthiness" scale. I'm not far enough into the quantum physics realm to fully explain any of this, but immediately you can understand where it's wrong by knowing that your eyes (and hands, etc.) really do deceive you. It's all an abstraction. You can't infinitely zoom into a sphere, because as you near the atomic scale, the sphere becomes a collection of atoms which definitely do not form infinitely small curvatures because they aren't even touching each other.
As the entire surface of the front view of the spinning blades is solid material. Not transparent looking like the gaps between spinning straight blades. Birds might not try to fly through the "danger zone" as they will see the solid metal / plastic body of the turbine as they approach from the front or back. So perhaps fly around it. ☠
@@annaclarafenyo8185 another trick to get some money from investors who have no clue what they are looking at. I can bet that turbine can not even get close to the efficiency of a medieval windmill,not to mention modern eolics......Why i claim this? Because it have a huge drag and friction with very little active surface . Some people don't realise that a turbine is moved by the inertia of the mass of the air passing thru it. Reason why the eolics have only 3 blades with a lot of space between,having more blades would just swirl the air and increase the drag and the mass of the turbine,lowering efficiency.
'145% efficiency' raises a big red flag and makes me instantly suspicious. We're into perpetual motion machine territory here before I've even started watching. Assuming no losses - a big assumption - you cannot exceed 100%
You can if you're comparing it to existing turbine power created. Wind turbines are typically 20-30% efficient if this can hit the Betz limit then it could be 145%.
Seems to me that the mountings they are using are sub-optimal, the wishbone bracket should be horizontal with a pair of rotors with opposite spin thus canceling the gyroscopic effect which would inhibit turning into the wind. This pair assembly then sits on a single pivot point where the two wishbones meet (like to back to back 'C' shapes) which is at the same height as the centerline of the spirals, which means far less torque force is needed to rotate it. This could even be expanded to a quad system all pivoting on one point. The reason you need to do this is that the main mast of a wind turbine is costly, so maximizing the amount of air captured by it is critical for cost effective deployments.
@@dennisbecraft1303 I would guess that having two counter rotating gear linked turbines in parallel with small clearance would increase efficiency thanks to high pressure zone forming in middle creating additional lift in direction of rotations.
@@skyrask1948 Possibly, if it worked something like an augmenter shroud. I'm guessing too, but I was imagining the resulting higher pressure spot wouldn't be ideal because it's asymmetrical, like not having the rotor aimed directly into the wind. Established theory only gets you so far, then you have to test your own hunches empirically. A 15% improvement on a very old drag design is impressive.
I don't know if placing many of these so close is a good idea. In conventional wind turbines a lot of care goes into placing them in a way that minimizes their effect on each other. I'd assume that if you placed two spirals right next to each other, the effect of the air being diverted to the side would be reduced, and the uneven load throughout one cycle would cause more significant material fatigue. Plus, if the rotation of the turbine was hindering it turning to the wind, you could just place the turbine further back, or add fins behind it, like you see in some old-school water pump wind turbines.
I agree - morally. But it got me to watch it. Advertising sells and as a design (advertising) professional who hates lies, I must admit that sometimes a sporty surface gets the edge.
Do they mean 145% of a regular wind turbine then its plausible. But getting 145% of the actual wind energy (as the clickbait implies). Is just plain stupid.
I think the most important thing is Cost Per Watt, across all scales. So im wondering whats is the cost of manufacturing vs relative production improvement compared to traditional turbines. Beautiful video
@@SolarWebsite yea that's what I meant, can my original comment be interpreted in any other way? He touched on this at the very end, I guess if you know the flat geometry you can bend sheets to this shape, but will they hold the shape in fast winds? I need to see a home made version of this
@@fire17102 Actually your original statement is perfectly valid and the industry standard. Because reneable energy has a high upfront instalation cost and almost no marginal cost the primary investment choice is made on a metric of cost per unit of generating capacity aka (dollars per watt) which is driven by manufacturing and instalation of the equipment. In the end more detailed calculations are needed to determine profitability but by then many other non-technical factors like interest rates, tax incentives etc are also involved.
@@Friendly_Gamer_Mom True, wind and solar would complement each other really well on the home, solar is effective in summer weather whereas winds is effective in winter weather as well as nighttimes and at pretty much any time of the year, which if I recall, wind is stronger in winter compared to summer and is also a little stronger at nighttime when solar doesn't generate anything. The other potential advantage of having both, by having a more consistent energy being generated, you'll need less of a buffer when it comes to how many batteries you need. But we'll have to see, we've heard so many promising ideas for wind power in urban areas but most just don't work that well, but in recent times, we are seeing a lot more creative ideas on the table, so if any of them can generate some meaningful energy, be cheap enough to buy, it could become a game changer.
Anyone trying to claim that anything has over-unity efficiency is , 1) in possession of the universe's single exception to the Second Law of Thermodynamics; 2) is ignorant of simple physics; or, 3) is a grifting bullshit artist. Usually some combination of #2 and #3.
Very similar to Viktor Schauberger's impeller designs from the early 1900's. "Comprehend and copy nature" is a good watch, we can learn a lot about efficiency from the natural world.
As an Indian, I really appreciate your work and thanks for giving us credit. Many mathematical concepts are originated by Indians (Hindus, jains, etc.) but most westerners just avoid giving credits.
If you're into spirals, check out the Japanese martial art Aikido. Many spirals in nature are the natural and stable resolution of dynamic and opposite forces confronting each other. Such as when a high pressure zone hits a low pressure zone and a tornado forms as a result. Aikido forms dynamic spirals by actively receiving their opponents attack. In a sense the Aikidoka is the low pressure zone to their opponent's high pressure zone. A predictable spiral forms and the Aikidoka is trained to almost ride the vortex of the spiral to use the clash as a way to throw or pin their opponent.
The spirals can also be seen in Aikido, in Steven Seagal's spiraling out of control weight gain. His spiraling out of control ego. As well as his spiraling toilet full of schit, farcical arts demo's.
Being an avid fan of all things Φ, I found your video instructive and fascinating! A question I have is, "How do such turbines fare in really strong winds?", as conventional turbines can feather to prevent damage in such conditions. Other commentators have suggested the 'economics' are paramount considerations but I tend to view things through a resource-based economy lens rather than an imaginary usury-based bankonomic one with the utter nonsense of elastic & daily changing values of bankster currencies. I'd certainly would like to see houses fitted with these Fibonacci turbines to help lighten the load on both the power grid and our environmental footprints though I see no need to actually connect these turbines to the grid.
Just don't mount them on the roof of any building that wasn't specifically engineered for them. The vibrations of a wind turbine can shake a building apart over the life of the turbine. Sticking them on a pole in the back yard also makes them much more accessible, because you can lay the pole down when you need to do maintenance or repairs. Of course, the turbines that have a vertical axis fix this by putting all the most wearing parts at ground level.
Great video, look forward to checking your other videos. Not sure why there is '145%' in the Title Graphic, the one representing the video, it may stop many serious people watching it FYI.
It seems to refer to the the study that found spiral blades to be up to 45% more efficient, than traditional blades. Thus assuming 100% of a traditional blade you would then have 145%. This is poor math at least and clickbait at worst. Hopefully someone will do a better video on the topic, as there are a few minor errors in this one.
I've delved into that rabbit hole a few times, its really easy to get lost, but if you take a step back and get an overview, its pretty clear the Fibonacci sequence is an inherent aspect of the way our universe functions. "Is the universe a fractal that can be calculated in equation? Is it Fibonaccis perfect golden spiral or is it just my imagination? Does the cosmic web of super clusters containing vast quantities of galaxies, that each within have countless systems that just like ours contain this curiosity?"
Addressing your first sentence, I wholeheartedly agree that the Fibonacci sequence is indeed a fundamental & underlying aspect of the entire physical universe. There is an unassailable reason for the prominence of the Fibonacci sequence & Φ across the universe. I hope to elaborate on this shortly on UA-cam & other platforms.
The biggest win for these types of wind generators is that despite lower efficiency they have a broader operating range. A traditional three-bladed wind generator needs clean air to reach peak efficiency and cannot be used under or over a certain threshold. They need to be high up in an open space. Spiral types along with upright models usually only have one limit: speed. There are 'folding' designs out there which tuck in the blades to reduce surface area in order to stay within the 'speed limit', increasing the 'harvesting bandwidth' even more.
As a design engineer who also dabbles in involute gear tooth profiles with Inventor AutoDesk's equation line, I was elated to hear about all the various ratios and the history of how they came to be derived. What an exceptional video; you have my subscription. 👏
The whole idea that some plants use that arrangement of leaves to maximize the amount of sunlight they get has never made any sense to me. First off, the number of plants that do that is quite small. Opposite leaves, whorled leaves, alternate leaves on the same plane, and other growth forms (grass-like plants, vines, columnar structures, etc) are VERY common. Second, I don't think there's much of a correlation here- not every plant wants to maximize its exposure to light (think of plants living in the desert) and many of those that don't still have a spiral pattern of leaves/branches (some cacti, aloes, yuccas, things like that). Many of the plants that you'd think would really want to maximize light exposure (understory plants, those living in high latitudes, etc) don't have such spiral patterns (trillium leaves, mayapples, clovers/Oxalis, Claytonia, most peperomias, etc). Third, you literally practically never find these spirals out in nature. Many of the examples people use have been strongly artificially selected. Some of them don't even have anything to do with light exposure (eg. pine cones, sunflower seed heads, or pineapples). Even the plants that, under ideal conditions, grow as those nice little spirals, often don't grow like that in the real world. They are often bent towards one side or another, the spacing between the spirals varies, etc. Fourth, that explanation only really works in a VERY limited set of conditions- light coming directly from above, and plants with leaves that are very close to each other and that can't move. However, the sun moves across the sky so that the light is practically never coming straight from above, plants are practically never oriented perfectly straight up and have many horizontal or diagonal components, the leaves are often not all that close to each other, and individual leaves can also move to face towards the light. No, I don't buy the light explanation for most plants (even many with a spiral pattern of growth). I think the real reasons involve just the fact that developmental processes are iterative and the fact that packing things into spirals is often an efficient way of packing a lot of things in a relatively small space.
I missed the mentions of Pax Scientific who are making mixers based on the golden spiral like the Lilly Impeller. They have some turbine designs as well.
@@speed999-uj5kr If you're running anything more advanced than an incandescent bulb or toaster on unstabilised power from solar and/or wind, good luck with buying new comouters etc regularly.
Agreed. Don't you just hate it when someone plays fast and loose with the definition of "efficiency" and then tries to imply that something they're trying to sell you is an over-unity machine?
@@silverhammer7779What really bugs me is when people tried to imply that somehow it is possible to get more than 100% efficiency from ANYTHING. That is, by definition, impossible.
@@SixballQ45 Tell ya what...why don't you come up with something that actually produces energy over 100% efficiency and get back to us? Then you definitely won't have to rely on public assistance, and you can finally move out of mom's basement.
He said In the video it was located at "Easy Cut Solutions" on UA-cam. I am not sure how it is spelled out, but use your fractal imagination to find it! Lol!
3:40 I beg to differ here. Long before Phi there was Archimedes constant, PI, (~300BC) which also cannot be expressed as a fraction, long predating Phi.
This concept seems promising but feels like an early iteration. There's too much surface at the outer edge which moves the fastest which is why I suspect it didn't do as well at higher speed. Wind turbines use 3 blades because that the smallest number that still balance forces that would wear them out. I wonder if a single bladed turbine in a spiral shape could be made to be perfectly balanced. That would need a lot of precision.
@@JohnDir-xw3hfThat's not complex or overengineered if it reduces to a single spiral and results in even a few percent increase in efficiency from now on. I see it as comparable to winglets, slats, washout & vortex generators on airplane wings.
If we look at it, it's basically just a regular turbine with very large blades. Like the classical old farmer wind mill, the large surface is more efficient at low wind speed because it is hit by a larger number of slow air molecules. However, at high wind speed, where the wind is much more powerful, the large surface area acts like a brick wall and pushes most of the air around the turbine, instead of through it, where its energy can be extracted. . Regular wind turbine don't break the air as much, allowing for more power extraction from the high speed air passing through. So it really is a question of choice: Does one wants to efficiently extract a little power, most of the time, from slow moving air or a lot of power from fast moving air, but only when it's windy?
Have a look at rotating spiral flagella - nature suggests this must be efficient, though possibly only at small scale. Add those bumps on whale flippers for good measure.
excuse me, but where in this video is this "145% EFFICIENCY" ??? Where does that number even come from? and why is "145% EFFICIENCY" plastered over the thumbnail like clickbait?
would it be possible to pair or even triple up on the spirals in an array? maybe have them counter-rotate for stability? Do these also work with low flows like heat from homes or say, constantly blowing PC/Computer/Server fans?
thanks for all the gret info, one thing at the end you said about them not replacing the others I disagree with, the other need to be higher up and further apart to not disrupt eachother, but I imagine the spiral you can have a small field of them packed together at different heights or on walls more out of sight from the skyline view. how close can they go together? infront of one another and abrest? diagonaly even.
Had to leave a separate comment. This is brilliant. When these discoveries are made hundreds of years ago - why on earth do we stray from them?! Three steps forward - Two steps back.
Because they don't work better when you factor in the total cost/benefit. They must be a lot heavier than a standard turbine covering the same swept area, and as you scale that up to 10-20 MW turbines of today, imagine the inevitably increased mechanical and material challenges. If they were truly better, we would of course use them.
12:26 If the efficiency decreases as the energy source becomes stronger, it must be strong enough to survive extreme weather. For giant wind energy isn't that great?
For craps sakes! It's done for the messed up UA-cam algorithms, if thumbnails don't create some sort of hyperbole or drama then the videos are seen less. It's a controversy, but it does indicate the psychological makeup of human beings. Because the data shows people click on drama over accurate information & since UA-cam makes its money on clicks the algorithm demands drama in the thumbnails. The creator is forced to play this algorithm game in order just to compete & stay online. So stop getting upset with the creators it's UA-cam choosing to create this dramatic overkill of how videos are displayed.
Wow...I had almost this exact thought not too long ago its inspiring to see people are actually doing something with this design. What if we made each spiral have an airfoil cross section curved on the bottom side so there would be two sources of lift plus the drag? Or maybe just on the ends where the spirals don't overlap.
question im doing a school project where i have to make a generator but power it with water. Could I use the fibonnaci turbine to power it or would it be better for wind?
I wonder what the result would be of printing up a thicker version of the spiral turbine blade and putting it forward-facing on an outboard motor. A "waterscrew" rather than a propellor? How efficient would it be?
Honestly I think the biggest advantage these have is that they look quite pretty. I could imagine these built as wind sculptures even if they didn't produce any power.
what happens if it is placed at an angle or even vertical axis of rotation? The video shows the horizontal axis of rotation....just curious, what happens in the other angled and vertical axis of rotation...
Assuming this is more efficient: There would likely have to be some sort of shroud that could be automatically put around the turbine in order to control the speed or even completely stop flow all together. The standard propeller types can turn their blades to get less wind power in addition to having brakes in the system otherwise high winds can damage them or even rip them apart purely from the centrifugal forces in extreme cases. Having this ability to stop the turbine is also important for maintenance.
Such an interesting video! For the wind turbines, another practical problem for Fibonacci blades is they need to be able to be "feathered" to slow down or completely stop in high winds -- or whenever the turbine operators need to stop the blade rotation. The traditional horizontal blades would just "feather" so they're parallel with the wind so that all wind rotation force ceases. But the Fibonacci blades don't appear to have this capability.
Could this be used as propelers? Like on a drone or a helicopter. I know its supposed to catch air and not create lift but im wondering if it would be a good option to create lift
There’s a number called the Betz Limit. It’s the maximum theoretical efficiency of any device extracting energy from moving air. That number is 59.3%. No actual physical turbine achieves this. At best, they get 80% of that, or 47% efficiency. When you look up the actual numbers on whirligig turbines like this one the efficiency is below that. There’s a reason that all commercial wind turbines look the same; three bladed, horizontal axis, slender blades, upwind. It’s not lack of imagination. Designers have tried thousands of designs over the past 60 years and that’s what works best. Please ignore the whirligig makers and their “ancient knowledge” grift.
i wonder how many of these urban models you need to noticably reduce wind strengths around skyscrapers, especially considering that skyscrapers usually only make up a very few percent of the total area of a city, whereas these could be placed all over it.
If you were to take the 3 individual blades, and isolate them, there is another amazing possibility. If they could be placed on a scissor mechanism, much like the mechanical advance weights of an older car distributor, as the speed, or volume of the air increases, they could throw out from the center, to harvest even more wind power as it becomes available. Kind of a variable torque, dictated by available wind.
Here is a subject which I have been thinking about for many years: There are methods to desalinate water using solar energy. Is there an application which is already in use?
A fun experiment to run would be to repeat your test using a stroboscope to test rotational speed from the space heater, then try again with the turbine mounted vertically to see which spins fastest.
Excellent episode! The market needs something like this for smaller to medium sized applications…more distributed power generation leads to energy security!
Does it? Small wind turbines have been on the market for 100+ years. If there had been a real niche for them, why haven't this niche manifested in sales? There is a clear economy of scale here, sorry.
@@tzenophile there has been a stigma on ‘alternative’ energy generation for these past decades, driven by marketing FUD, scalability, poorly designed systems, etc…but if the price of these small systems can compete with Solar’s major price declines then the opportunity to use both types makes sense. Even if perhaps a supplemental component.
@@keithnance4209 I would very much like to think so too. Having invested in solar and a battery (which work great) and living in a very windy place it would be wonderful to top up with a wind turbine. But I can't find any serious product (=HAWT) that would seem to recover its cost before breaking down. It would also have to be so big/tall that it would be hard to get a building permit. And with the solar and battery my remaining needs are only 2-3 MWh in the winter months, so the rational thing to do is to buy that from the Big Wind companies nearby.
10:00 The primary reason for this improvement might very well be just using an asymmetric design, since the basic design has the same curvature near the axis as near the edge... Considering a larger design space almost always allows optimizations, but often at a cost in design and production costs... 12:47 Again, probably nothing specific to do with logarithmic spirals. Usually mechanisms are also optimized to use low amounts of material. If you don't care about that, you obviously have more possible designs, and some of these will be logarithmic spirals that happen to have a good efficiency.
@@zangetsu_the_best_zanpakuto In this case the percents are effectively just a different energy unit. Assume at 1m/s the wind is imparting 100W of energy. So the 3-blade turbine is delivering 48W of energy, and the propeller turbine 33W of energy. 48W is 45% more energy than 33W. Do you object to this claim? Is the problem that efficiencies are inherently a percentage, thus 45% more efficient is ambiguous? Let's say one was 10W and the other 20W, is calling the second twice as efficient wrong? Just trying to clarify.
@@gblargg yah, i see where you are coming from, and yes, you totally can compare percent differences of percent differences as a percent difference of each other, just so long as everyone is on the same page or it gets confusing. 😅 usually though, if both of the samples are rated on a scale where "100%" is an absolute upper limit that can't be breached, such as this case (because of the laws of thermodynamics), it's much more straightforward to just compare the difference between two points on that scale by subtraction.
@@zangetsu_the_best_zanpakuto A simple difference of values doesn't get across the improvement. Say the old one was 1% efficient and the new is 2% efficient. That's double the efficiency yet only a 1% difference via subtraction. In other words, to make sense of the 1% improvement you must know the other values, whereas a 100% improvement in output stands on its own (and would be incredible in a mature field like this).
The Pyamid and Golden ratio is actuallly correct when you consider that the Golen ratio was used to approximate Pi via the fbonacci series. It is oft quoted as a graient of 280 cubits to 220 (1760 / 2 / 280) usings 22/7 as Pi which is 55/21 x 6/5 Herodotus quotes a vairation of this using The area of the face being equal to the square of the height using sqrt 8 x 100 cubits = sqrt 80,000 This is a Pyamid with gradient sqrt Phi : 1. The relaitonship between 280 and 100x sqrt 8 is the relationship between the 28 finger cubits, the 20 finger remen diagonal cubit and the 144/7" Greek cane cubit. These scale in the ration sqrt 0.98:1 (effectively 99%), which is exactly the same as the 30 finger sumerian cubits using 21 sides as a downscale factor of sqrt 0.98 Thus 280 remen diagonal royal cubits = 282+ 28 finger cubits. Thus 280 cane cubits = 282+ remen diagonal cubits.
I wonder whether an ability to change the shape/extent etc. in accordance with windspeed would keep the efficiency up? One can imagine that some kind of extensible or shape-changing material would be a help? For example, boat sails would/could/do? change their shape somewhat on the fly.
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Do you know of any other real places the Fibonacci sequence appears?
Could you make some In Depth Study over Magnetic Recirculation of Ions as Thrusters for Dirigibles as the ones from LokeedMartin or Flying Wales.
Taking in consideration that Constant Recirculation of Condensed Atmosphere Humidity could generate much more Passive Ions Production from Water Molecular Charge Interactions with Silver Particles.
Basically the more Electricity the more Ions, the more Humidity the more Ions, the both of them Recirculation thanks to Magnetic Separation (Iron Nitride) would Build Up Ions which would be Subsequently Accelerated by Electrical Current Generating Even More Active Ions Thrust...
It could becoming An Efficient Low Cost Propulsion for Low Atmosphere Commercial/Defensive/Scientific Dirigibles...
[I think Plasma Channel Made already a Video upon that... You should call him and Make a Collabs...
He Seems a Fairly Nicely Swaying Guy...
He have Good Vibes over New Technologies Research & Development]
conventional wind turbines have a lot of drawbacks (noise pollution, threatening endangered species like bald eagles and owls, toxic materials, landfill waste) and are only being implemented successfully in areas that have less severe weather and more wind. An Archimedes (or logarithmic) turbine would be more efficient, last longer, and cause less damage to the environment, It's an idea worth investing in.
@@artcurious807
I also hate Regular Turbines, but you need a Really Fucked Up Howl or Bald Eagle for Endangering themselves with Blades as Big as Palaces Moving...
Theirs Little Big Eyes can See a Rat even from Miles Away...
They should be using them for Closing the Rat Lines from WWII, not Using them as Expedient for not Making Turbine Technology Progress...
There will be always something else for Carbon Investments...
We don't have to Fear Change..
Is The 'Inhumane Status Quo' which have Feared Us...
@@artcurious807⚠️ God has said in the Quran:
🔵 { O mankind, worship your Lord, who created you and those before you, that you may become righteous - ( 2:21 )
🔴 [He] who made for you the earth a bed [spread out] and the sky a ceiling and sent down from the sky, rain and brought forth thereby fruits as provision for you. So do not attribute to Allah equals while you know [that there is nothing similar to Him]. ( 2:22 )
🔵 And if you are in doubt about what We have sent down upon Our Servant [Muhammad], then produce a surah the like thereof and call upon your witnesses other than Allah, if you should be truthful. ( 2:23 )
🔴 But if you do not - and you will never be able to - then fear the Fire, whose fuel is men and stones, prepared for the disbelievers.( 2:24 )
🔵 And give good tidings to those who believe and do righteous deeds that they will have gardens [in Paradise] beneath which rivers flow. Whenever they are provided with a provision of fruit therefrom, they will say, "This is what we were provided with before." And it is given to them in likeness. And they will have therein purified spouses, and they will abide therein eternally. ( 2:25 )
⚠️ Quran
Wonderfully explained, great comparisons. 👍🏿
9:14 The green thing is NOT a savonius turbine. A savonius has to have a gap between the halves through which the wind can flow to the other half that runs towards the wind.
If the gap is missing it is a pure resistance runner like for example an anemometer.
Minor quibble. The version with no gap is included in the drawings of many embodiments of the concept revealed in his patent.
Ahhemmmm. not a "savonius turbine", its a "Savonius ROTOR"
@@dennisbecraft1303 In his patent document of 1926 in Austria, Savonius included drawings of a version without a gap as well as a dozen of versions with a gap. He explicitely explained in the text that the gap significantly enhances the performance of the rotor. In his patent document of 1930 in Germany a specific layout of the gap is the essential feature of his patent claim.
@@FranzN57 Why lecture me? I'm not the one who said it must have the gap to be a savonius.
The most important metric of a wind turbine is the levelized cost of energy (LCOE). This metric allows you to compare all forms of energy generation in terms of total energy return during the lifetime of operation per investment dollar spent.
Not at all.
You fx also has to add the local climate by temperaure and dirty air, where there are many buildings.
That give people a lot of bills, they are not 100% and also needs for expensive beds.
@@jensholm5759 that is all accounted for when calculating LCOE. However, one
Interesting thing that LCOE doesn't account for that I am interested in when designing my turbines is the cradle to grave environmental impact of mining, manufacturing, assembling, transporting, installing, operating, and decommissioning each turbine. It's best to keep these in mind during the design phase because ultimately you want to minimize the total emissions and negative environmental impacts involved.
lets for a moment ignore the fact that wind turbines do affect the eco system for birds and other wildlife...
most wind turbines do advertise a life span of 25yrs (which is true in a controlled environment) but we're almost at the end of some of these wind turbine government contracts and the true cost comes out, on avg these wind turbines last 1.5yrs- 2yrs on avg before needing to be replaced and the efficiency actually drops to less than 33% within the 1st 3mts of operation (on avg every 8-10mts the blades is replaced).. this is all thanks to the blades deteriorating much faster than expected, you can use the strongest materials known to man and this would still happen.. the other factors is the weather pattern and storms, in the real world when storms hit wind turbines they need to be replaced, even if you can't see the damage there is micro cracks all over the blades and 90% of the time the motor/ generator is damaged.. now if you think burying nuclear waste was a problem well getting rid of the glass fiber blades is a much MUCH bigger problem (in terms of space requirements) and no they don't biodegrade... as a comparison wind energy takes more ppl and more jobs is created than nuclear energy BUT because there is over 100times more ppl required to make the same power so that factor alone makes wind power more expensive than nuclear energy....
@@dunhillsupramk3 I'm interested in learning more. Can you cite your sources?
Very interesting.Takes me back to June& July 2000 when I was part of a group of teachers that visited the USA to learn new methods of teaching Science, Maths and Technology.That is where I first learnt about Fibonacci.VERY VERY interesting that nature has the aswers to many of our questions about our lived world.
I am a Bharatiya, I am very thankful you mentioned where the fibinaci number actually came from, much appreciated
It was invented by Mr Fibonacci
Nope man it was invented by indian mathematien
Indian claim everything indian. I don't trust it at this point
Now you can die in peace..
what the hell is bharatiya
To produce those spirals, a living thing's cells need to be able to produce a consistent angles of an irrational rotation. Phi happens to be a good ratio for producing dense packing on a growing surface area. Keep in mind, though, dense packing on a growing surface area ALMOST ALWAYS produces a spiral of some kind if it's not a flat surface.
It doesn't have to replicate the exact number. It just has to get close enough to work. Your computer doesn't account for the whole irrational sequence when it draws a spiral on the screen. The plants don't have to either.
@@Elrog3excuse me, you don't need the perfect 1 to 1 distance between each point of a sphere to call it a sphere, you need to only get juuuust close enough, yet a perfect sphere produces infinite god damn pressure, as it has infinitely small curvature.
@@shawermus "a perfect sphere produces infinite god damn pressure"
-
This is nonsense rambling.
@@Elrog3 It is, but it's one of those "sounds right" factoids. Rates high on the "truthiness" scale. I'm not far enough into the quantum physics realm to fully explain any of this, but immediately you can understand where it's wrong by knowing that your eyes (and hands, etc.) really do deceive you. It's all an abstraction. You can't infinitely zoom into a sphere, because as you near the atomic scale, the sphere becomes a collection of atoms which definitely do not form infinitely small curvatures because they aren't even touching each other.
@@Elrog3not for me ... I am perfectionist
As the entire surface of the front view of the spinning blades is solid material. Not transparent looking like the gaps between spinning straight blades. Birds might not try to fly through the "danger zone" as they will see the solid metal / plastic body of the turbine as they approach from the front or back. So perhaps fly around it. ☠
This is also why it doesn't work--- it's unstable to destructive winds and it's not as efficient as passing the air through to harvest energy.
@@annaclarafenyo8185 another trick to get some money from investors who have no clue what they are looking at. I can bet that turbine can not even get close to the efficiency of a medieval windmill,not to mention modern eolics......Why i claim this? Because it have a huge drag and friction with very little active surface . Some people don't realise that a turbine is moved by the inertia of the mass of the air passing thru it. Reason why the eolics have only 3 blades with a lot of space between,having more blades would just swirl the air and increase the drag and the mass of the turbine,lowering efficiency.
@@annaclarafenyo8185 True. They can't brake them in destructive winds. The traditional blades can turn on their axes to capture less wind.
'145% efficiency' raises a big red flag and makes me instantly suspicious. We're into perpetual motion machine territory here before I've even started watching. Assuming no losses - a big assumption - you cannot exceed 100%
You can if you're comparing it to existing turbine power created. Wind turbines are typically 20-30% efficient if this can hit the Betz limit then it could be 145%.
Yeah, claims like this usually come with an asterisk and fine print...
Actually it is even lower. The Betz limit is 59%.
Seems to me that the mountings they are using are sub-optimal, the wishbone bracket should be horizontal with a pair of rotors with opposite spin thus canceling the gyroscopic effect which would inhibit turning into the wind. This pair assembly then sits on a single pivot point where the two wishbones meet (like to back to back 'C' shapes) which is at the same height as the centerline of the spirals, which means far less torque force is needed to rotate it. This could even be expanded to a quad system all pivoting on one point. The reason you need to do this is that the main mast of a wind turbine is costly, so maximizing the amount of air captured by it is critical for cost effective deployments.
Ignoring efficiency of scale & costs of complexity, adjacency interactions impeding ambient airflow etc., aren't you?
@@dennisbecraft1303 I would guess that having two counter rotating gear linked turbines in parallel with small clearance would increase efficiency thanks to high pressure zone forming in middle creating additional lift in direction of rotations.
@@skyrask1948 Possibly, if it worked something like an augmenter shroud. I'm guessing too, but I was imagining the resulting higher pressure spot wouldn't be ideal because it's asymmetrical, like not having the rotor aimed directly into the wind. Established theory only gets you so far, then you have to test your own hunches empirically.
A 15% improvement on a very old drag design is impressive.
I don't know if placing many of these so close is a good idea. In conventional wind turbines a lot of care goes into placing them in a way that minimizes their effect on each other. I'd assume that if you placed two spirals right next to each other, the effect of the air being diverted to the side would be reduced, and the uneven load throughout one cycle would cause more significant material fatigue. Plus, if the rotation of the turbine was hindering it turning to the wind, you could just place the turbine further back, or add fins behind it, like you see in some old-school water pump wind turbines.
Why does the thumbnail say 145% efficiency? I hate when people lie in their advertising. Unlike and unsubscribed.
I second this
yup. hate clickbaits
I agree - morally. But it got me to watch it. Advertising sells and as a design (advertising) professional who hates lies, I must admit that sometimes a sporty surface gets the edge.
Me too. Hate it.
Do they mean 145% of a regular wind turbine then its plausible. But getting 145% of the actual wind energy (as the clickbait implies).
Is just plain stupid.
I think the most important thing is Cost Per Watt, across all scales. So im wondering whats is the cost of manufacturing vs relative production improvement compared to traditional turbines. Beautiful video
Even more important is cost per Wh (or kWh, MWh, etc).
@@SolarWebsite yea that's what I meant, can my original comment be interpreted in any other way?
He touched on this at the very end, I guess if you know the flat geometry you can bend sheets to this shape, but will they hold the shape in fast winds? I need to see a home made version of this
The most important metric of a wind turbine is LCOE
@@fire17102 Uhm, well, you did say watt...
@@fire17102 Actually your original statement is perfectly valid and the industry standard. Because reneable energy has a high upfront instalation cost and almost no marginal cost the primary investment choice is made on a metric of cost per unit of generating capacity aka (dollars per watt) which is driven by manufacturing and instalation of the equipment. In the end more detailed calculations are needed to determine profitability but by then many other non-technical factors like interest rates, tax incentives etc are also involved.
9:09 you are welcome for that 1second of footage from my backyard.
Haha
Thank you for your video contribution. Wind energy paired with solar could essential help all single family home to be less grid dependant.
Sorry the credit wasn't clear in the corner - It's an automatic layer and I should have changed the colour of!
@@Friendly_Gamer_Mom True, wind and solar would complement each other really well on the home, solar is effective in summer weather whereas winds is effective in winter weather as well as nighttimes and at pretty much any time of the year, which if I recall, wind is stronger in winter compared to summer and is also a little stronger at nighttime when solar doesn't generate anything.
The other potential advantage of having both, by having a more consistent energy being generated, you'll need less of a buffer when it comes to how many batteries you need.
But we'll have to see, we've heard so many promising ideas for wind power in urban areas but most just don't work that well, but in recent times, we are seeing a lot more creative ideas on the table, so if any of them can generate some meaningful energy, be cheap enough to buy, it could become a game changer.
Okay the wind turbine in the middle off the road is awesome.
yup - harness the air from the constant traffic is genius
the 145% efficiency has triggered my senses :D
Anyone trying to claim that anything has over-unity efficiency is , 1) in possession of the universe's single exception to the Second Law of Thermodynamics; 2) is ignorant of simple physics; or, 3) is a grifting bullshit artist. Usually some combination of #2 and #3.
145% efficiency is total garbage and they've completely dumped all credibility.
This clearly means 145% of the efficiency of other turbines, which is commonly stated as "145% efficiency compared to other designs."
@@jonathanmacdonald9609
"Clearly" = "Pulled it out of my @$$"
@@jonathanmacdonald9609 This was not explicitly stated. Words mean things, not only the words you use but also the words you fail to use.
He wasn’t joking when it literally appears everywhere. Wonderful video ziroth
Its been in film since at least 1939, its the Yellow Brick Road from Oz
In case nobody knows who created this, it was Victor schauberger. He wrote a book we should all be reading, called copy and comprehend nature
Very similar to Viktor Schauberger's impeller designs from the early 1900's. "Comprehend and copy nature" is a good watch, we can learn a lot about efficiency from the natural world.
pee on hydrants, no flushing. 😮❤
Nature doesn't use many rotating components... Does it?
@@davebutler3905 A spiral does not have to rotate to be a spiral.
As an Indian, I really appreciate your work and thanks for giving us credit. Many mathematical concepts are originated by Indians (Hindus, jains, etc.) but most westerners just avoid giving credits.
Here we go again.
I finally understand the Fibonucci set, thankyou, great video.
If you're into spirals, check out the Japanese martial art Aikido.
Many spirals in nature are the natural and stable resolution of dynamic and opposite forces confronting each other. Such as when a high pressure zone hits a low pressure zone and a tornado forms as a result.
Aikido forms dynamic spirals by actively receiving their opponents attack. In a sense the Aikidoka is the low pressure zone to their opponent's high pressure zone. A predictable spiral forms and the Aikidoka is trained to almost ride the vortex of the spiral to use the clash as a way to throw or pin their opponent.
Aikido has proven to be a farse in real life application
That's pretty cool
When I read "Japanese" I thought you were about to troll everyone by recommending the Japanese horror manga about spirals, Uzumaki XD
The spirals can also be seen in Aikido, in Steven Seagal's spiraling out of control weight gain. His spiraling out of control ego. As well as his spiraling toilet full of schit, farcical arts demo's.
but aikido is not really a martial art but a performance art
Interesting. In my opinion, you explain things in a clear and engaging manner.
This was really one of the best researched and reported videos in a while.. long on info, short on channel begging. Well done
that intro was tooo long
‘Crowd-resourcing sun-flowers’ - v. good!
145% efficiency! that's astounding. I'll take 69% of one.
Being an avid fan of all things Φ, I found your video instructive and fascinating! A question I have is, "How do such turbines fare in really strong winds?", as conventional turbines can feather to prevent damage in such conditions.
Other commentators have suggested the 'economics' are paramount considerations but I tend to view things through a resource-based economy lens rather than an imaginary usury-based bankonomic one with the utter nonsense of elastic & daily changing values of bankster currencies.
I'd certainly would like to see houses fitted with these Fibonacci turbines to help lighten the load on both the power grid and our environmental footprints though I see no need to actually connect these turbines to the grid.
Just don't mount them on the roof of any building that wasn't specifically engineered for them. The vibrations of a wind turbine can shake a building apart over the life of the turbine.
Sticking them on a pole in the back yard also makes them much more accessible, because you can lay the pole down when you need to do maintenance or repairs. Of course, the turbines that have a vertical axis fix this by putting all the most wearing parts at ground level.
What is the shape of the blades on flat surface? Is it golden triangle?
Great video, look forward to checking your other videos. Not sure why there is '145%' in the Title Graphic, the one representing the video, it may stop many serious people watching it FYI.
It seems to refer to the the study that found spiral blades to be up to 45% more efficient, than traditional blades. Thus assuming 100% of a traditional blade you would then have 145%.
This is poor math at least and clickbait at worst.
Hopefully someone will do a better video on the topic, as there are a few minor errors in this one.
145% efficiency turned me off to this channel. I won't be back.
Ed Schultheis, PE
Mechanical design engineer and manufacturing consultant for 35 years
dear autor, can you please give a link for 3D model of tourbine you showed in this video?
I've delved into that rabbit hole a few times, its really easy to get lost, but if you take a step back and get an overview, its pretty clear the Fibonacci sequence is an inherent aspect of the way our universe functions.
"Is the universe a fractal that can be calculated in equation?
Is it Fibonaccis perfect golden spiral or is it just my imagination?
Does the cosmic web of super clusters containing vast quantities of galaxies,
that each within have countless systems that just like ours contain this curiosity?"
No
Addressing your first sentence, I wholeheartedly agree that the Fibonacci sequence is indeed a fundamental & underlying aspect of the entire physical universe. There is an unassailable reason for the prominence of the Fibonacci sequence & Φ across the universe. I hope to elaborate on this shortly on UA-cam & other platforms.
@@JohnThomas-ci9ml no
The biggest win for these types of wind generators is that despite lower efficiency they have a broader operating range. A traditional three-bladed wind generator needs clean air to reach peak efficiency and cannot be used under or over a certain threshold. They need to be high up in an open space.
Spiral types along with upright models usually only have one limit: speed. There are 'folding' designs out there which tuck in the blades to reduce surface area in order to stay within the 'speed limit', increasing the 'harvesting bandwidth' even more.
Loving the history/mythology crossover/backstory. Another great video!
As a design engineer who also dabbles in involute gear tooth profiles with Inventor AutoDesk's equation line, I was elated to hear about all the various ratios and the history of how they came to be derived. What an exceptional video; you have my subscription. 👏
some other engineers are saying this stuff is hype or clickbat marketing what can you say about that I'm asking your view on that?
The whole idea that some plants use that arrangement of leaves to maximize the amount of sunlight they get has never made any sense to me.
First off, the number of plants that do that is quite small. Opposite leaves, whorled leaves, alternate leaves on the same plane, and other growth forms (grass-like plants, vines, columnar structures, etc) are VERY common.
Second, I don't think there's much of a correlation here- not every plant wants to maximize its exposure to light (think of plants living in the desert) and many of those that don't still have a spiral pattern of leaves/branches (some cacti, aloes, yuccas, things like that). Many of the plants that you'd think would really want to maximize light exposure (understory plants, those living in high latitudes, etc) don't have such spiral patterns (trillium leaves, mayapples, clovers/Oxalis, Claytonia, most peperomias, etc).
Third, you literally practically never find these spirals out in nature. Many of the examples people use have been strongly artificially selected. Some of them don't even have anything to do with light exposure (eg. pine cones, sunflower seed heads, or pineapples). Even the plants that, under ideal conditions, grow as those nice little spirals, often don't grow like that in the real world. They are often bent towards one side or another, the spacing between the spirals varies, etc.
Fourth, that explanation only really works in a VERY limited set of conditions- light coming directly from above, and plants with leaves that are very close to each other and that can't move. However, the sun moves across the sky so that the light is practically never coming straight from above, plants are practically never oriented perfectly straight up and have many horizontal or diagonal components, the leaves are often not all that close to each other, and individual leaves can also move to face towards the light.
No, I don't buy the light explanation for most plants (even many with a spiral pattern of growth). I think the real reasons involve just the fact that developmental processes are iterative and the fact that packing things into spirals is often an efficient way of packing a lot of things in a relatively small space.
What is the length of the blades? Does it have ratio in them too?
I missed the mentions of Pax Scientific who are making mixers based on the golden spiral like the Lilly Impeller. They have some turbine designs as well.
Are we accounting for the extra material/ propeller area when determining efficiency?
Kudos for mentioning our favorite tinker, mate!
Where can i buy it I’m looking for the Liam F1 Wind mini Turbine
Didn’t bother watching the video - seeing efficiency of greater than 100% told me all I needed about the credibility of the information.
I love the video.
Do you have a link to your 3d printed wind turbine
This would be lovely in capetown the southeaster is pumping this time of the years and the electricity blackouts has gotten worse
Without the grid, you will need a battery for stable power.
@@SolarWebsitefactually incorrect
@@speed999-uj5kr If you're running anything more advanced than an incandescent bulb or toaster on unstabilised power from solar and/or wind, good luck with buying new comouters etc regularly.
Could this be applied to propeller planes as well?
3:39 what about the square root of 2?
According to Betz's law, no wind turbine of any mechanism can capture more than 16/27 (59.3%) of the kinetic energy in wind!!
Agreed. Don't you just hate it when someone plays fast and loose with the definition of "efficiency" and then tries to imply that something they're trying to sell you is an over-unity machine?
@@silverhammer7779What really bugs me is when people tried to imply that somehow it is possible to get more than 100% efficiency from ANYTHING. That is, by definition, impossible.
@@protoborgYep. Unless they repealed the Second Law of Thermodynamics while we weren't looking... 🤔
@@silverhammer7779 Laws are meant to be broken...
@@SixballQ45 Tell ya what...why don't you come up with something that actually produces energy over 100% efficiency and get back to us? Then you definitely won't have to rely on public assistance, and you can finally move out of mom's basement.
Could you use it as fan-blade?
Thank you very much. It's amazing👍❤
Could these turbines be used to capture the vertical airflow emitting from a large chimney and convert it to electricity?
where can one find the file you used to 3d print the turbine?
He said In the video it was located at "Easy Cut Solutions" on UA-cam. I am not sure how it is spelled out, but use your fractal imagination to find it! Lol!
3:40 I beg to differ here. Long before Phi there was Archimedes constant, PI, (~300BC) which also cannot be expressed as a fraction, long predating Phi.
Super fascinating and exciting
link for 3d turbine model ?
This concept seems promising but feels like an early iteration. There's too much surface at the outer edge which moves the fastest which is why I suspect it didn't do as well at higher speed. Wind turbines use 3 blades because that the smallest number that still balance forces that would wear them out. I wonder if a single bladed turbine in a spiral shape could be made to be perfectly balanced. That would need a lot of precision.
Why overcomplicate and over engineere? 🤦🏼
@@JohnDir-xw3hfThat's not complex or overengineered if it reduces to a single spiral and results in even a few percent increase in efficiency from now on. I see it as comparable to winglets, slats, washout & vortex generators on airplane wings.
If we look at it, it's basically just a regular turbine with very large blades. Like the classical old farmer wind mill, the large surface is more efficient at low wind speed because it is hit by a larger number of slow air molecules. However, at high wind speed, where the wind is much more powerful, the large surface area acts like a brick wall and pushes most of the air around the turbine, instead of through it, where its energy can be extracted. . Regular wind turbine don't break the air as much, allowing for more power extraction from the high speed air passing through. So it really is a question of choice: Does one wants to efficiently extract a little power, most of the time, from slow moving air or a lot of power from fast moving air, but only when it's windy?
Have a look at rotating spiral flagella - nature suggests this must be efficient, though possibly only at small scale. Add those bumps on whale flippers for good measure.
@@tim40gabby25 You need more relevant analogues for that to be convincing, IMO.
And what about stuffing it onto an engine? Would it suck in the medium around the propeller, or similarly thrust it outwards?
excuse me, but where in this video is this "145% EFFICIENCY" ??? Where does that number even come from? and why is "145% EFFICIENCY" plastered over the thumbnail like clickbait?
You clearly studied carnot engine.
@@capitancodigo2165 ?
1, 4, 5. So 1 + 4 = 5. So Fibonacci like sequence I guess?
Where can these be purchased?
Is there a site that has a blueprint of the blades if you want to build (assemble) one yourself from 3 sheets of thin plastic?
145% more efficient compared to what.?? Is it like a dam overflowing at 107% just asking??
no efficiency improvement can compensate for small wind capturing area. what is the cost of material per unit of gained power?
145% efficiency does not exist its just a selling talk
If you exceed 100% you create energy over unity which is impossible with the current physics
would it be possible to pair or even triple up on the spirals in an array? maybe have them counter-rotate for stability? Do these also work with low flows like heat from homes or say, constantly blowing PC/Computer/Server fans?
That's pretty cool stuff.
thanks for all the gret info, one thing at the end you said about them not replacing the others I disagree with, the other need to be higher up and further apart to not disrupt eachother, but I imagine the spiral you can have a small field of them packed together at different heights or on walls more out of sight from the skyline view. how close can they go together? infront of one another and abrest? diagonaly even.
Had to leave a separate comment. This is brilliant. When these discoveries are made hundreds of years ago - why on earth do we stray from them?! Three steps forward - Two steps back.
Because they don't work better when you factor in the total cost/benefit. They must be a lot heavier than a standard turbine covering the same swept area, and as you scale that up to 10-20 MW turbines of today, imagine the inevitably increased mechanical and material challenges. If they were truly better, we would of course use them.
why is 50% of this video just giving examples of fibonnaci irl?
Thanks Ziroth. In your research, did you come across engineers using (super) computers to estimate performance of the turbines before they were built?
Your haircut is a golden ratio
I wonder if you could make a toroidal golden ratio propeller/turbine?
145% efficient? You just dumped all credibility.
12:26 If the efficiency decreases as the energy source becomes stronger, it must be strong enough to survive extreme weather. For giant wind energy isn't that great?
There’s no such thing as efficiencies above 100% because otherwise you have invented perpetual motion LOL give me a break.
I think it was comparing this shape to others, like it's 145% more efficient than another shape.
Just one name for you - Viktor Schauberger... LOL
For craps sakes! It's done for the messed up UA-cam algorithms, if thumbnails don't create some sort of hyperbole or drama then the videos are seen less. It's a controversy, but it does indicate the psychological makeup of human beings. Because the data shows people click on drama over accurate information & since UA-cam makes its money on clicks the algorithm demands drama in the thumbnails. The creator is forced to play this algorithm game in order just to compete & stay online. So stop getting upset with the creators it's UA-cam choosing to create this dramatic overkill of how videos are displayed.
Wow...I had almost this exact thought not too long ago its inspiring to see people are actually doing something with this design. What if we made each spiral have an airfoil cross section curved on the bottom side so there would be two sources of lift plus the drag? Or maybe just on the ends where the spirals don't overlap.
I never understood the golden ratio until now. Thank you for explaining it so well!
question im doing a school project where i have to make a generator but power it with water. Could I use the fibonnaci turbine to power it or would it be better for wind?
I wonder what the result would be of printing up a thicker version of the spiral turbine blade and putting it forward-facing on an outboard motor. A "waterscrew" rather than a propellor? How efficient would it be?
There's one way to find out...
10:30 What is the name of the background song?
Honestly I think the biggest advantage these have is that they look quite pretty. I could imagine these built as wind sculptures even if they didn't produce any power.
Thanks for taking the time to explain the many subject matters in this video.
what happens if it is placed at an angle or even vertical axis of rotation? The video shows the horizontal axis of rotation....just curious, what happens in the other angled and vertical axis of rotation...
Could these be used for boat & plane props & jet fans?
Probably not at the same time
One spiral that is fascinating is the spiral that the eliptical orbits the planets make as our star moves through space
Assuming this is more efficient: There would likely have to be some sort of shroud that could be automatically put around the turbine in order to control the speed or even completely stop flow all together. The standard propeller types can turn their blades to get less wind power in addition to having brakes in the system otherwise high winds can damage them or even rip them apart purely from the centrifugal forces in extreme cases. Having this ability to stop the turbine is also important for maintenance.
Such an interesting video!
For the wind turbines, another practical problem for Fibonacci blades is they need to be able to be "feathered" to slow down or completely stop in high winds -- or whenever the turbine operators need to stop the blade rotation. The traditional horizontal blades would just "feather" so they're parallel with the wind so that all wind rotation force ceases. But the Fibonacci blades don't appear to have this capability.
Could this be used as propelers? Like on a drone or a helicopter. I know its supposed to catch air and not create lift but im wondering if it would be a good option to create lift
This was a fantastic documentary,thanks
Id be interested in diamiter required for horse power output obviously gearing will be required , but im looking for wind pump for well water
There’s a number called the Betz Limit. It’s the maximum theoretical efficiency of any device extracting energy from moving air. That number is 59.3%. No actual physical turbine achieves this. At best, they get 80% of that, or 47% efficiency.
When you look up the actual numbers on whirligig turbines like this one the efficiency is below that.
There’s a reason that all commercial wind turbines look the same; three bladed, horizontal axis, slender blades, upwind. It’s not lack of imagination. Designers have tried thousands of designs over the past 60 years and that’s what works best.
Please ignore the whirligig makers and their “ancient knowledge” grift.
i wonder how many of these urban models you need to noticably reduce wind strengths around skyscrapers, especially considering that skyscrapers usually only make up a very few percent of the total area of a city, whereas these could be placed all over it.
If you were to take the 3 individual blades, and isolate them, there is another amazing possibility. If they could be placed on a scissor mechanism, much like the mechanical advance weights of an older car distributor, as the speed, or volume of the air increases, they could throw out from the center, to harvest even more wind power as it becomes available. Kind of a variable torque, dictated by available wind.
Here is a subject which I have been thinking about for many years: There are methods to desalinate water using solar energy. Is there an application which is already in use?
Another design that's related to this would be the lily impeller. I highly recommend you look it up.
I forgot this video was even about turbines because I was so invested in just learning about the spirals until he brought the turbines up again.
If a parabolic reflector is pointed directly upwards on a cloudless night, what may we expect to happen at the focal point of the reflector?
Any real numbers of kWp/m² in comparision (next to LCOE)?
A fun experiment to run would be to repeat your test using a stroboscope to test rotational speed from the space heater, then try again with the turbine mounted vertically to see which spins fastest.
Liked the shoutout to Robert Murray-Smith @ThinkingandTinkering
Excellent episode! The market needs something like this for smaller to medium sized applications…more distributed power generation leads to energy security!
I agree with this completely!
Does it? Small wind turbines have been on the market for 100+ years. If there had been a real niche for them, why haven't this niche manifested in sales? There is a clear economy of scale here, sorry.
@@tzenophile there has been a stigma on ‘alternative’ energy generation for these past decades, driven by marketing FUD, scalability, poorly designed systems, etc…but if the price of these small systems can compete with Solar’s major price declines then the opportunity to use both types makes sense. Even if perhaps a supplemental component.
@@keithnance4209 I would very much like to think so too. Having invested in solar and a battery (which work great) and living in a very windy place it would be wonderful to top up with a wind turbine. But I can't find any serious product (=HAWT) that would seem to recover its cost before breaking down. It would also have to be so big/tall that it would be hard to get a building permit. And with the solar and battery my remaining needs are only 2-3 MWh in the winter months, so the rational thing to do is to buy that from the Big Wind companies nearby.
10:00 The primary reason for this improvement might very well be just using an asymmetric design, since the basic design has the same curvature near the axis as near the edge...
Considering a larger design space almost always allows optimizations, but often at a cost in design and production costs...
12:47 Again, probably nothing specific to do with logarithmic spirals. Usually mechanisms are also optimized to use low amounts of material. If you don't care about that, you obviously have more possible designs, and some of these will be logarithmic spirals that happen to have a good efficiency.
12:30 Isn't it actually 45% more efficient at low speeds? 48/33=1.45. Even at 1.5m/s it's 21% more efficient.
no no no, dividing percents into percents is bad practices. always use the difference between the two points if the scale is 100%.
@@zangetsu_the_best_zanpakuto In this case the percents are effectively just a different energy unit. Assume at 1m/s the wind is imparting 100W of energy. So the 3-blade turbine is delivering 48W of energy, and the propeller turbine 33W of energy. 48W is 45% more energy than 33W. Do you object to this claim? Is the problem that efficiencies are inherently a percentage, thus 45% more efficient is ambiguous? Let's say one was 10W and the other 20W, is calling the second twice as efficient wrong? Just trying to clarify.
@@gblargg yah, i see where you are coming from, and yes, you totally can compare percent differences of percent differences as a percent difference of each other, just so long as everyone is on the same page or it gets confusing. 😅
usually though, if both of the samples are rated on a scale where "100%" is an absolute upper limit that can't be breached, such as this case (because of the laws of thermodynamics), it's much more straightforward to just compare the difference between two points on that scale by subtraction.
@@zangetsu_the_best_zanpakuto A simple difference of values doesn't get across the improvement. Say the old one was 1% efficient and the new is 2% efficient. That's double the efficiency yet only a 1% difference via subtraction. In other words, to make sense of the 1% improvement you must know the other values, whereas a 100% improvement in output stands on its own (and would be incredible in a mature field like this).
Another amazing video - love seeing engineering / nature crossovers 🌀
The Pyamid and Golden ratio is actuallly correct when you consider that the Golen ratio was used to approximate Pi via the fbonacci series.
It is oft quoted as a graient of 280 cubits to 220 (1760 / 2 / 280) usings 22/7 as Pi which is 55/21 x 6/5
Herodotus quotes a vairation of this using The area of the face being equal to the square of the height using sqrt 8 x 100 cubits = sqrt 80,000
This is a Pyamid with gradient sqrt Phi : 1.
The relaitonship between 280 and 100x sqrt 8 is the relationship between the 28 finger cubits, the 20 finger remen diagonal cubit and the 144/7" Greek cane cubit.
These scale in the ration sqrt 0.98:1 (effectively 99%), which is exactly the same as the 30 finger sumerian cubits using 21 sides as a downscale factor of sqrt 0.98
Thus 280 remen diagonal royal cubits = 282+ 28 finger cubits.
Thus 280 cane cubits = 282+ remen diagonal cubits.
I wonder whether an ability to change the shape/extent etc. in accordance with windspeed would keep the efficiency up? One can imagine that some kind of extensible or shape-changing material would be a help? For example, boat sails would/could/do? change their shape somewhat on the fly.