I hope you can forgive me Sir. Now I know why the Germans lost two world wars. The BRITs had "ROBERT, THE MAN THAT'S LARGE AND IN CHARGE !!!" The Americans also thank you Sir. Your inventiveness make the EU tremble in their shoes. these days. Job well done fella too.
Amazing!!!!! Bigger obviosuly produces more Power, but doens't bring any new Insights.. What about the Number of Blades? Can You try 2 to 9 Blades per Side? Maybe on the Dual-Blade Rotor if it is easier Also if You increase the Weight of the Outside Ring of this Rotor, it'll also function as a Flywheel Thank You for the Great Videos and Ideas!!
This totally isn't the point of course, but I just like the LOOK of this one, it's just a delightful thing to my eyes! Which I suppose IS relevant when people get into marketing this kind of thing as a product or not upsetting the neighbours.
22v Flipping Eck!!! wow! thats cool. Well done Also, thinking that this would be safer because the fins less likely to break and fly off in high winds. Oh, would be lovely to see this in action when storm winds comes off the sea :) hmm... i wonder if this would be safe enough to mount on a car roof rack?
Yet another great vid! When might you try adapting this dual ball generator into your Darwin wind generator build for catching wind at all directions and orienting this ball vertically?
I'd much rather see a stand of that sort of trubine over the standard 3-blade type in a wind farm. I'd hope that those scale up to the 6-20 MW rating and production controls would be much simpler without stearing and feathering required for the normal sort. A MW scale omniball might be less damaging to wildlife, too.
Absolutely 💯 Agreed with You!! These are Scalable and would be much preferable to the massive 3bladed atrocities that we currently have!! Andréa and Critters. ...XxX...
Amazing! Given the latest rotor tech in helicopter design I do wonder if you’re tinkering resonates in that domain. Could we see evolution of a closed loop toroidal blade type for example which can feather too?
@@johnmansell5097 Currently getting 20v from a 104mm diameter "ball" - Why 2m diameter? Small ball has less chance for birds being ground to mush and RPMs shaking the thing to bits.
can you combine this with entrainment and the couanda effect? ie like the Dyson fan arrangement! Perhaps you could sandwich one between the two half cork-screws?
I love the way you are evolving these projects, 👍 It's great to watch them grow!! I have to admit that I love your mad genius laugh,,,😁 ~ Thank you so much, again Robert!! I enjoyed this very Much!! Andréa and Critters. ...XxX...
- yes the pass-through improves everytthing - creating an impulse turbine - equivalent... (not an identical concept - but better than pure "drag." - Priscila style )... (planar- pitch optimisation - 2-be-done, for a lot more - output)...
My wife's simple house is near a coastline and nestled between mountains. I can't wait to try this out on the roof when I reach back home soon. With the water vaporator ideas in the other video, is there a configuration you would suggest for generating energy from regular rainfall? Monsoon season could be a bounty of storable energy I am sure. Thanks for vid matey.
Hi Robert, I'm not sure how much flexibility your cad software is capable of but is the airfoil shaped for maximum lift? This is bringing back my fluid dynamics courses in uni🤣 That airfoil, shaped properly will definitely increase the overall performance when scaling up to something more interesting 🤔 The other aspect is this could be constructed in metal a lot easier than many other designs. I think you have really hit on something here😉👍🍻
Awesome! I´m looking for a topic for my TFG on electrical engineering. Can I use your designs to do a study of efficiency and productivity? Citing your work of course.
I love your video's. I think it would be valuable to explore the path to add these devices to solar panel inverter. That would make the whole channel and all idea's so much more valuable. At least in my opinion.
The shape of the blades is obviously very important,, maybe you could experiment with a slow Mo camera and some dyed smoke. 🤔 If one little ball generates 10V, in theory, is there a way to connect 22 balls to get 220V or you just get more of 10V?
My question exactly‼️ If I can't get something to charge battery bank for my freezer and icebox( hopefully a light as well) I may have to go to propane tank big enough for 1 year .... I m on s. S..... With the --------administration in usa inc. Government Here,that could easily disappear.
Brilliant, with a very compact and petite design I wonder if you put it on a post with some sort of array, kinda like a lamp post with 3 or 4 arms? Minimizes footprint, it is visually aesthetic, like some one mentioned below and would produce more. I would say it is a fantastic addition.
Excellent video as usual , I'm currently designing a sand battery power system that will run A/C ,heater ,fridge \freezer and hot and cold water to go inside a camper van, and this duel rotor set up gives me a fantastic idea of a power tunnel to power it all 👍
I also have a camper van whose storage battery is a Tesla module; solar on roof with alt. charging when underway. I have long been intrigued by the possibility of using wind while underway to charge. How is your work going if you don’t mind sharing? Thanks!
@@begin47 hi , well I'm a member of van life UK on face book IV put up a circuit diagram for how the sand battery circuit will work currently gathering all the components to put that together , the wind generator is a really simple design tbh that I actually got from hydroponic growing tbh 🤣 the idea it lots of small generators that spin really fast , and the tube length could be altered according to van length , I think an ideal design would-be 2 tubes one down each side of the van leaving the middle for storage or a small solar and storage as the power needed to stay off grid would-be reduce due to the sand battery picking up the slack ,
Thanks for getting back to me. Nice to meet you. I don’t even know what sand battery is. I’ll have to do some research on that. I have been following the evolution of wind generators with the goal of finding something of high efficiency and small size that would work to recharge my Tesla storage battery. I have 1 fan, 5 solar panels and a swamp cooler on the roof, so not much room up there. Are you using wind a generator(s) at this point and if so, what type and size?
It was fun watching the meter picking up on power generated by you just moving other blade models (with their magnets) around the new generator. Just shows how little it takes to generate small amounts of electricity.
massive, cool, madness, game changer! Many thanks! I understand it's omnidirectional, but was the base fixed? And does the wind direction matter a lot in yield?
i am having the updated design printed for me by a home 3d printing enthusiast. he is charging me 25 Canadian dollars for it and I have ordered the other parts from amazon. i just need the bar part now. Hopefully all these parts will be here within a month i live in an apartment and this design is ideal for an apartment balcony. My plan is to put a few of these together and try to charge my Dewalt batteries i have the Dewalt electrical generator and the ability to recharge the batteries during a power outage would make it the perfect apartment emergency power system
@@nexxus0320 by reducing the lock up areas you'll need a second wheel with small magnets lined up to reduce drag it works on generators 21/2 times out input the Japanese have appliances with it in them . Your magnets need to be adjustable.
I love your videos but why do you only care about volts. You can have a thousand volts bit if there is no current then its usless. I think watts would be a better measurement for what ever it is your testing.
Lovely stuff !! excellent performance update :) I can't help but wonder whenever I see this kind of thing if doubling the magnets thickness (snapping a second magnet on back of each one) would increase its performance both in flux and in flywheel effect or maybe one or the other.. I am sure there is maths somewhere I could work out flux saturation and what not. any who. awesome update :)
I wonder if this could be made much larger. Using steamed strips of bamboo. Glued together with liquid nails, or epoxy of something ,and possibly wrap with fiberglass to protect it. Making a roughly 96" ball, on a tower of 2" heavy wall tubing, maybe form a tripod. From 1.5" tubing braced evry 10' with 1/2" tubing. And 1/8" cables near the top, with a 2" pipe being the final 10' being 50' tall total, maybe have it tilt on two legs to about 45° angle , and the top tilt to another 45° making ig easy to install and service. The whole thing should be 100-150lbs at most , this being tgf reason for thd cable bracing. Use a liniar actuator to tilt the top or maybe a cable and hinge. Uding a 1/4"cable to keep the top pole latched straight, and to tilt down when the tower is tilted, build a 48" ring as the rotor and stator, form a 2"x4" magnet using two steel bars, and a couple magnets , rough 1.5"x 1/8" n52, or close, use 3 staters and 2 rotors, using serpent coils on each starter, epoxy the magnets together and to the rotor, place poly foam between the magnets, then wrap with fiberglass, Wrap the coils around the foam blocks and wrap them with fiberglass also, only make it possible to cut the fiberglass and remove it like a shell from the coils, re wrap the coils and glue it back on in the future! Just a rough guess it should do 2-3kw! with afairly strong Wind. 20mph maybe 1kw or so,
In the process of building one of these and wondering a couple of items. 1) Making the blades aerodynamic to increase the life effect which should increase rpm's 2) Increasing the number of blades by one or two to decrease the gap and possibly increase lift even more 3) A slight increase in diameter to allow two rows of magnets, increasing the area of the wire being directly acted upon by the motion of the fields. These are just thought that I am kicking around and will try to design myself and see what the results are. Will gladly share.
Nice :-) For me thinking about efficiency isn't perusing a "best figure on paper" claim, it's more thinking things like "can we make this start generating at lower wind speeds than previous version does?" Essentially can we get more real World use/payback without adding too much extra to the cost, effort and maintenance of it. Which this looks like it does very nicely indeed.
I have been working on practically the exact same thing. However, my brief is to make a counter-rotating spherical drone. You beat me to posting a video about it! I've made a few prototypes and one scares me as I put a very powerful motor on it. I do get a fair amount of thrust out of it but haven't measured it to compare with a conventional prop yet. It doesn't feel like I get more but it may be more efficient at higher speeds than the motor can reach.
Incredible! Robert, that design is so compact you could stick a few of them up on the roof, connect them up and generate some decent power without annoying any neighbours. Genius!
This should be on the roofline of every home, factory, office, etc in the country harvesting wind energy wherever it is fitted. However, making it available freely on Tinkercad surely means that a patent won't be granted? To scale up production would need investment, and how many times have we seen on Dragons Den and the like a great product being demonstrated and the question comes " do you have a patent for this?", "Er no" is the answer followed swiftly by " I'm out". Relying on hobbyists producing them on an ad hoc basis will result in some being made mainly for self consumption. I know Robert's drive is to encourage others to do their own research which is fair enough.I feel that this should and could be scaled up for the mass market, meaning a production line in a factory or two, an inward investment would be required to set that up with government encouragement to enable the generators to be fitted for the consumer. A ready market and lower carbon emissions, a win win situation.
Hey! I love your work, as an idea for one of your videos you could create a small wind tunnel to test your small designs for turbines! Keep up the good work
Also if you link 3 dc motors in a tube with MIT's new props you can most likely run them in a series/parallel switching circuit and have it run continuously, by it's own.
@@MilkyToucan I have heard that, but I have also come across discussions where things were patented although in public domain. The CAD files may be enough to really prove it as being in PD, but...
Hi, love your vids! I’ve always been wondering which of these 3 methods captures the most energy from falling water.. 1. Water wheel 2. Turbine at base of tube, or 3. Double pulley chain-link drive with carrying cups that take the full water load from top to bottom.. I think it would be an interesting comparison anyway. Cheers :)
Yep. Rob has a few dozen videos showing how you would achieve that. I don't know the vid numbers, but one of them was quite recent, last couple of weeks mate.
Nice optimisation Robert. I can see this design passing the not-too-ugly test for a rooftop, especially one with an existing mounting (Old satellite, TV antenna, vent, chimney). How large can you make these?
I've done experiments with different type props run in series both on separate motors and also one with a double ended 12v motor (old 12v cig lighter oscillating fan) which is using a three blade plastic to pull a two blade metal. It works well. The props and motor are in 6" cardboard tube. Runs with other fans off a standard 12v adapter and a circuit to help it go.
Excellent. I love the comparison, clearly, it seems, indicating the second prototype is better. Would be great if you could somehow do a comparison against other wind turbine types you've built, noting you've been clear that what is better is sometimes subjective.
Using the lift type configuration imagine positioning it like a lollypop on a vertical axis. I'd love to find a small efficent vat turbine to keep boat batteries charged in the winter . Thanks for your research and enthusiasm , cheers John.
The First Turbine Was Locked In Not EfficientBy The Design Because There Was Matterial blocking the airflow , next design had the plastic not so much blocking so the maximum velocity was bigger
@@d.marbus1493 Good idea but the generator has magnets in it. Magnetism is affected from around 80 C and curie temp of neodymium magnets around 310 - 400 c - So same outcome as Luke had with peltier device on chimney.
If it's two blades with a gap......... I just think jet turbines where they have fixed and rotating sections. I wonder if a stationary ring to direct airflow would help🤔
I think a torus could be more effective than a sphere. The vanes (blades) forming the sphere still create a centrifugal force that increases friction, but if the vanes were pointing inward to form a torus, the centripetal force would create a more coherent flow and reduce friction.
It would be great to see how well this worked as a wind wall similar to your mini pc fan wall. Or when building your ugrinsky wall - would it be possible to stack and a flip the turbines so that the axial flux magnets spin faster similar to this design? Loving the videos keep them coming.. 👍
I noticed you didn't take advantage of placing you rear blade supports on an angle to maximise rpms / power output, nor did you ramp the circumference to prevent resistance.
Don't make it larger, make it modular. Stack them 4 or 5 high in a frame. Line frames up together to get desired 'swept area'. Or, stack frames at 90 degrees to form a rectangular box or 60 degrees to form a trapezoidal post.
Im looking at building a home back up system with a few dozen of these. You mentioned the voltage as roughly 20v dcbut how many amps is it producing? Im looking to create a 240v ac system but not sure how many id need or what is the best way to combine them and then convert it from dc to ac id love to get some help with my project youve truly been an inspiration of mine over the last couple of years and i trust your judgement
Love this design. Just got my Elegoo 4 Pro, but not setup yet. Is it possible to produce that airfoil shape in Tinkercad? If it is how about a short tutorial?
with an omnidirectional turbine such as this, would it work or make sense to mount it on a pole/stand like structure that funnels wind UP to the turbine where it meets the cross draft? since it's omnidirectional, can it be mounted vertically and horizontally?
Enclose the turbine in an eight sided Darwin box that has orifice plates instead of deflectors. Put pro tecter grids on the holes to protect the innocent. This size of turbine would look like a fancy birdhouse.
i tested my hair blower and it has a wind speed of 8 mph so probably Robert's hair blower is something similar and that means this thing will produce far more power at higher speeds of wind, I think
can anyone direct me to where i can learn more about calculating the power generated by this type of turbine. wondering about the area in the power equation I find online. wondering if its the length of the blade along its axis and not just the radius across the circle...any help or places to look would be great
I printed one of the files but the spiral blades start over some of the holes that the magnets go into. What if the holes were on the opposite side so they'd be easier to put in and the blades would be more solidly attached to the ring? They wouldn't flex as much during printing and a soother airfoil would result. Yes?
I want to know what angle of incoming airflow is most efficient if strait on like typical wind turbines then I could add a swivel bearing and a box kite style tail i think this will work great with my joule thief style inverter i use for lighting up to 4 led light bulbs
I tried replicating this using a wooden dowel instead of a metal one to attach the fan blades but my multimeter is not reading any voltage. Could the reason be the wood?
Do you think this is easily upscaled and if so do you see any problems? I wondedered whether using more or the same size magnets is better/worse than scaled up ones (same with the windings)also wondering if multiples these in a windwall setup could work? Questions and thoughts combined:) Thanks for your videos and wisdom.
Because the airflow is exhausting into the rear turbine with the blades facing in the opposite direction, wouldn't that introduce drag? how does a configuration of a single new blade compare to the two? could the air be re-directed in the hub to angle the air in the same direction as the rear turbine to reduce drag?
Put it on a tower and do some field tests. You may have a revolutionary wind turbine that would be quiet and efficient😊
If you want it quiet, find a way to add the double helix from MIT.
I hope you can forgive me Sir. Now I know why the Germans lost two world wars. The BRITs had "ROBERT, THE MAN THAT'S LARGE AND IN CHARGE !!!" The Americans also thank you Sir. Your inventiveness make the EU tremble in their shoes. these days. Job well done fella too.
Amazing!!!!!
Bigger obviosuly produces more Power, but doens't bring any new Insights..
What about the Number of Blades? Can You try 2 to 9 Blades per Side? Maybe on the Dual-Blade Rotor if it is easier
Also if You increase the Weight of the Outside Ring of this Rotor, it'll also function as a Flywheel
Thank You for the Great Videos and Ideas!!
This totally isn't the point of course, but I just like the LOOK of this one, it's just a delightful thing to my eyes!
Which I suppose IS relevant when people get into marketing this kind of thing as a product or not upsetting the neighbours.
Yes! It's more stealthy!
@@MerwinARTistI agree 💯!!
22v Flipping Eck!!! wow! thats cool. Well done
Also, thinking that this would be safer because the fins less likely to break and fly off in high winds. Oh, would be lovely to see this in action when storm winds comes off the sea :) hmm... i wonder if this would be safe enough to mount on a car roof rack?
Could this be used as an alternative battery charging source in a camper van? Say a number of smaller units on the roof when the van is underway.
Yet another great vid! When might you try adapting this dual ball generator into your Darwin wind generator build for catching wind at all directions and orienting this ball vertically?
would be great to also see how well these work in series.. certainly there will be downstream losses but how much?
Would be awesome at the top of a yachts mast. Minimal drag and weight aloft, max exposure, keep the birds off and power to boot. 👌
I'd much rather see a stand of that sort of trubine over the standard 3-blade type in a wind farm. I'd hope that those scale up to the 6-20 MW rating and production controls would be much simpler without stearing and feathering required for the normal sort. A MW scale omniball might be less damaging to wildlife, too.
Absolutely 💯 Agreed with You!!
These are Scalable and would be much preferable to the massive 3bladed atrocities that we currently have!!
Andréa and Critters. ...XxX...
question can it be put on a car bumper while car is going terry
So Robert .. I wonder now what happens if you shape the blades to match the airplane wing profile. I love what you are achieving here!
I was about to design that but they I feel that it won't be so omnidirectional
Amazing! Given the latest rotor tech in helicopter design I do wonder if you’re tinkering resonates in that domain. Could we see evolution of a closed loop toroidal blade type for example which can feather too?
I'm very curious to find out the power curve and other characteristics. If not for anything else than comparing to all your other awesome prototyping.
Brilliant! I love the way these projects evolve. Next step, make it bigger 😀
Bigger must be better
Just this if it was 2m diameter at its widest point.
@@johnmansell5097 Currently getting 20v from a 104mm diameter "ball" - Why 2m diameter? Small ball has less chance for birds being ground to mush and RPMs shaking the thing to bits.
He is going to need a bigger hair dryer 🤔
can you combine this with entrainment and the couanda effect? ie like the Dyson fan arrangement!
Perhaps you could sandwich one between the two half cork-screws?
I love the way you are evolving these projects, 👍
It's great to watch them grow!!
I have to admit that I love your mad genius laugh,,,😁
~ Thank you so much, again Robert!!
I enjoyed this very Much!!
Andréa and Critters. ...XxX...
- yes the pass-through improves everytthing - creating an impulse turbine - equivalent... (not an identical concept - but better than pure "drag." - Priscila style )... (planar- pitch optimisation - 2-be-done, for a lot more - output)...
My wife's simple house is near a coastline and nestled between mountains. I can't wait to try this out on the roof when I reach back home soon.
With the water vaporator ideas in the other video, is there a configuration you would suggest for generating energy from regular rainfall? Monsoon season could be a bounty of storable energy I am sure.
Thanks for vid matey.
Hi Robert,
I'm not sure how much flexibility your cad software is capable of but is the airfoil shaped for maximum lift?
This is bringing back my fluid dynamics courses in uni🤣
That airfoil, shaped properly will definitely increase the overall performance when scaling up to something more interesting 🤔
The other aspect is this could be constructed in metal a lot easier than many other designs.
I think you have really hit on something here😉👍🍻
Awesome! I´m looking for a topic for my TFG on electrical engineering. Can I use your designs to do a study of efficiency and productivity? Citing your work of course.
I love your video's. I think it would be valuable to explore the path to add these devices to solar panel inverter. That would make the whole channel and all idea's so much more valuable. At least in my opinion.
Imagine wind wall from this ❤
Y
E
S
‼️‼️‼️‼️‼️‼️
The shape of the blades is obviously very important,, maybe you could experiment with a slow Mo camera and some dyed smoke.
🤔 If one little ball generates 10V, in theory, is there a way to connect 22 balls to get 220V or you just get more of 10V?
My question exactly‼️
If I can't get something to charge battery bank for my freezer and icebox( hopefully a light as well) I may have to go to propane tank big enough for 1 year .... I m on s. S..... With the --------administration in usa inc. Government Here,that could easily disappear.
How fun is that. The creative mind juices are surly flowing. Another good one.
Brilliant, with a very compact and petite design I wonder if you put it on a post with some sort of array, kinda like a lamp post with 3 or 4 arms? Minimizes footprint, it is visually aesthetic, like some one mentioned below and would produce more. I would say it is a fantastic addition.
May I see it up close..?
So I can understand the different..thank you very much.
Excellent video as usual , I'm currently designing a sand battery power system that will run A/C ,heater ,fridge \freezer and hot and cold water to go inside a camper van, and this duel rotor set up gives me a fantastic idea of a power tunnel to power it all 👍
I also have a camper van whose storage battery is a Tesla module; solar on roof with alt. charging when underway. I have long been intrigued by the possibility of using wind while underway to charge. How is your work going if you don’t mind sharing? Thanks!
@@begin47 Very nice idea with the wind charging and very little drag thanks to the size.
@@begin47 hi , well I'm a member of van life UK on face book IV put up a circuit diagram for how the sand battery circuit will work currently gathering all the components to put that together , the wind generator is a really simple design tbh that I actually got from hydroponic growing tbh 🤣 the idea it lots of small generators that spin really fast , and the tube length could be altered according to van length , I think an ideal design would-be 2 tubes one down each side of the van leaving the middle for storage or a small solar and storage as the power needed to stay off grid would-be reduce due to the sand battery picking up the slack ,
Thanks for getting back to me. Nice to meet you. I don’t even know what sand battery is. I’ll have to do some research on that. I have been following the evolution of wind generators with the goal of finding something of high efficiency and small size that would work to recharge my Tesla storage battery.
I have 1 fan, 5 solar panels and a swamp cooler on the roof, so not much room up there. Are you using wind a generator(s) at this point and if so, what type and size?
It was fun watching the meter picking up on power generated by you just moving other blade models (with their magnets) around the new generator. Just shows how little it takes to generate small amounts of electricity.
Wow, this is awesome! Scale it up and you'll have more torque which will produce more power.
would offsetting the blades as in your dual rotor betz beater improve anything?
Sorry to bother you. I was wondering if you still do the membership program. Good job on the video and I enjoyed it
massive, cool, madness, game changer! Many thanks! I understand it's omnidirectional, but was the base fixed? And does the wind direction matter a lot in yield?
i am having the updated design printed for me by a home 3d printing enthusiast. he is charging me 25 Canadian dollars for it and I have ordered the other parts from amazon. i just need the bar part now. Hopefully all these parts will be here within a month i live in an apartment and this design is ideal for an apartment balcony. My plan is to put a few of these together and try to charge my Dewalt batteries i have the Dewalt electrical generator and the ability to recharge the batteries during a power outage would make it the perfect apartment emergency power system
Have you tried magnetic neutralization with it ? It overcomes the magnet drag you get 2 1/2 times more out of it .
how could this be applied to a wind turbine?
@@nexxus0320 by reducing the lock up areas you'll need a second wheel with small magnets lined up to reduce drag it works on generators 21/2 times out input the Japanese have appliances with it in them . Your magnets need to be adjustable.
I love your videos but why do you only care about volts. You can have a thousand volts bit if there is no current then its usless. I think watts would be a better measurement for what ever it is your testing.
Lovely stuff !! excellent performance update :)
I can't help but wonder whenever I see this kind of thing if doubling the magnets thickness (snapping a second magnet on back of each one) would increase its performance both in flux and in flywheel effect or maybe one or the other.. I am sure there is maths somewhere I could work out flux saturation and what not. any who. awesome update :)
I wonder if this could be made much larger. Using steamed strips of bamboo. Glued together with liquid nails, or epoxy of something ,and possibly wrap with fiberglass to protect it. Making a roughly 96" ball, on a tower of 2" heavy wall tubing, maybe form a tripod. From 1.5" tubing braced evry 10' with 1/2" tubing. And 1/8" cables near the top, with a 2" pipe being the final 10' being 50' tall total, maybe have it tilt on two legs to about 45° angle , and the top tilt to another 45° making ig easy to install and service. The whole thing should be 100-150lbs at most , this being tgf reason for thd cable bracing. Use a liniar actuator to tilt the top or maybe a cable and hinge. Uding a 1/4"cable to keep the top pole latched straight, and to tilt down when the tower is tilted, build a 48" ring as the rotor and stator, form a 2"x4" magnet using two steel bars, and a couple magnets , rough 1.5"x 1/8" n52, or close, use 3 staters and 2 rotors, using serpent coils on each starter, epoxy the magnets together and to the rotor, place poly foam between the magnets, then wrap with fiberglass, Wrap the coils around the foam blocks and wrap them with fiberglass also, only make it possible to cut the fiberglass and remove it like a shell from the coils, re wrap the coils and glue it back on in the future! Just a rough guess it should do 2-3kw! with afairly strong Wind. 20mph maybe 1kw or so,
Whoever you are ... Love your dreaming and structural example.
In the process of building one of these and wondering a couple of items.
1) Making the blades aerodynamic to increase the life effect which should increase rpm's
2) Increasing the number of blades by one or two to decrease the gap and possibly increase lift even more
3) A slight increase in diameter to allow two rows of magnets, increasing the area of the wire being directly acted upon by the motion of the fields.
These are just thought that I am kicking around and will try to design myself and see what the results are. Will gladly share.
did you build it yet?
Can you do a video on a kite type wind turbine. Better airflow at 150’ up instead of 20’ off the ground?
Nice :-)
For me thinking about efficiency isn't perusing a "best figure on paper" claim, it's more thinking things like "can we make this start generating at lower wind speeds than previous version does?" Essentially can we get more real World use/payback without adding too much extra to the cost, effort and maintenance of it. Which this looks like it does very nicely indeed.
What about trying back to back toroidal props
I have been working on practically the exact same thing. However, my brief is to make a counter-rotating spherical drone. You beat me to posting a video about it! I've made a few prototypes and one scares me as I put a very powerful motor on it. I do get a fair amount of thrust out of it but haven't measured it to compare with a conventional prop yet. It doesn't feel like I get more but it may be more efficient at higher speeds than the motor can reach.
Who's having fun with his 3D printer then.
Incredible! Robert, that design is so compact you could stick a few of them up on the roof, connect them up and generate some decent power without annoying any neighbours. Genius!
This should be on the roofline of every home, factory, office, etc in the country harvesting wind energy wherever it is fitted. However, making it available freely on Tinkercad surely means that a patent won't be granted? To scale up production would need investment, and how many times have we seen on Dragons Den and the like a great product being demonstrated and the question comes " do you have a patent for this?", "Er no" is the answer followed swiftly by " I'm out".
Relying on hobbyists producing them on an ad hoc basis will result in some being made mainly for self consumption. I know Robert's drive is to encourage others to do their own research which is fair enough.I feel that this should and could be scaled up for the mass market, meaning a production line in a factory or two, an inward investment would be required to set that up with government encouragement to enable the generators to be fitted for the consumer. A ready market and lower carbon emissions, a win win situation.
Hey! I love your work, as an idea for one of your videos you could create a small wind tunnel to test your small designs for turbines! Keep up the good work
:) Thank you :)
Also if you link 3 dc motors in a tube with MIT's new props you can most likely run them in a series/parallel switching circuit and have it run continuously, by it's own.
Awsome video with comparisons with the two - indeed made a huge difference! Can't wait for the next one :)
Good job 👏 👍
Awesome 👌
Gosh I love your stuff. Are you planning on making an updated version of the wind wall with these things?
I think you should patent it. Not for the money but to stop someone else doing it and locking it up for them to make money.
I think it’s now in public domain so no one can
@@MilkyToucan I have heard that, but I have also come across discussions where things were patented although in public domain. The CAD files may be enough to really prove it as being in PD, but...
Hi, love your vids! I’ve always been wondering which of these 3 methods captures the most energy from falling water.. 1. Water wheel 2. Turbine at base of tube, or 3. Double pulley chain-link drive with carrying cups that take the full water load from top to bottom.. I think it would be an interesting comparison anyway. Cheers :)
I have said for years that water wheels are an over looked and easy install here in the UK with our often damp climate and lots of rivers.
Can you charge a phone from it
Yep. Rob has a few dozen videos showing how you would achieve that. I don't know the vid numbers, but one of them was quite recent, last couple of weeks mate.
@@TheBaconWizard the brilliant thnxs
Nice optimisation Robert. I can see this design passing the not-too-ugly test for a rooftop, especially one with an existing mounting (Old satellite, TV antenna, vent, chimney). How large can you make these?
I've done experiments with different type props run in series both on separate motors and also one with a double ended 12v motor (old 12v cig lighter oscillating fan) which is using a three blade plastic to pull a two blade metal. It works well. The props and motor are in 6" cardboard tube. Runs with other fans off a standard 12v adapter and a circuit to help it go.
Rob, there are too many rotors to choose from for my project...which one could be best for wind coming down a chimney?
Thank you! Your process is a true inspiration
Excellent. I love the comparison, clearly, it seems, indicating the second prototype is better. Would be great if you could somehow do a comparison against other wind turbine types you've built, noting you've been clear that what is better is sometimes subjective.
how about a checklist of metrics to keep track of the different turbines
Using the lift type configuration imagine positioning it like a lollypop on a vertical axis.
I'd love to find a small efficent vat turbine to keep boat batteries charged in the winter . Thanks for your research and enthusiasm , cheers
John.
What an improvement and less material to boot.😊
Love this update! Getting a friend to do the 3D prints for me. 😊
bloody brilliant
The First Turbine Was Locked In Not EfficientBy The Design Because There Was Matterial blocking the airflow , next design had the plastic not so much blocking so the maximum velocity was bigger
Combine those two.
Instead of having the plain hub. Add the small omnidirectional fan to the wind turbine
104mm diameter. Almost fits into the air intake of your rocket stove
Make it in steel and put high in the chimney as well
@@d.marbus1493 Good idea but the generator has magnets in it. Magnetism is affected from around 80 C and curie temp of neodymium magnets around 310 - 400 c - So same outcome as Luke had with peltier device on chimney.
Would have been great instead of the anti bird cage on top of my chimney.
Robert, do you have any tips for making the 300 turns for the winding?? How long did it take you? That's the last thing I have to do.
If it's two blades with a gap......... I just think jet turbines where they have fixed and rotating sections. I wonder if a stationary ring to direct airflow would help🤔
Would doubling its size make it produce adequate wattage to charge 12/24v off grid systems. Here the wind blows at night a lot.
Awesome design certainly could be many applications for that. Marry the omni directional ball to the Darwin wind turbine win win.??
I think a torus could be more effective than a sphere. The vanes (blades) forming the sphere still create a centrifugal force that increases friction, but if the vanes were pointing inward to form a torus, the centripetal force would create a more coherent flow and reduce friction.
What's the airflow the hair-dryer? cfm? Or for metric people, cmm.?
Sir can you share the details of designing of the turbine
It would be great to see how well this worked as a wind wall similar to your mini pc fan wall. Or when building your ugrinsky wall - would it be possible to stack and a flip the turbines so that the axial flux magnets spin faster similar to this design? Loving the videos keep them coming.. 👍
Can such design be utilized for VAWT? What about using a hemisphere of this omniball and mounting it ontop of a vertical axis rotor?
You've also lowered the weight and by moving from the long flat blade to the curved is lowered the mass moment of inertia.
I noticed you didn't take advantage of placing you rear blade supports on an angle to maximise rpms / power output, nor did you ramp the circumference to prevent resistance.
Don't make it larger, make it modular.
Stack them 4 or 5 high in a frame.
Line frames up together to get desired 'swept area'.
Or, stack frames at 90 degrees to form a rectangular box or 60 degrees to form a trapezoidal post.
I would love to have your brain for just a couple of hours… Agree with what the others are saying: BIGGER! Nice.
Im looking at building a home back up system with a few dozen of these. You mentioned the voltage as roughly 20v dcbut how many amps is it producing? Im looking to create a 240v ac system but not sure how many id need or what is the best way to combine them and then convert it from dc to ac id love to get some help with my project youve truly been an inspiration of mine over the last couple of years and i trust your judgement
I have built this 3X bigger and It does not spin freely at 3X scale, how can I get it working? I posted videos of it in your discord server.
Love this design. Just got my Elegoo 4 Pro, but not setup yet. Is it possible to produce that airfoil shape in Tinkercad? If it is how about a short tutorial?
with an omnidirectional turbine such as this, would it work or make sense to mount it on a pole/stand like structure that funnels wind UP to the turbine where it meets the cross draft? since it's omnidirectional, can it be mounted vertically and horizontally?
Great vid 😎👍
Enclose the turbine in an eight sided Darwin box that has orifice plates instead of deflectors. Put pro tecter grids on the holes to protect the innocent. This size of turbine would look like a fancy birdhouse.
Bang on brilliant mate!
Kool
i tested my hair blower and it has a wind speed of 8 mph
so probably Robert's hair blower is something similar and that means this thing will produce far more power at higher speeds of wind, I think
can anyone direct me to where i can learn more about calculating the power generated by this type of turbine. wondering about the area in the power equation I find online. wondering if its the length of the blade along its axis and not just the radius across the circle...any help or places to look would be great
I printed one of the files but the spiral blades start over some of the holes that the magnets go into. What if the holes were on the opposite side so they'd be easier to put in and the blades would be more solidly attached to the ring? They wouldn't flex as much during printing and a soother airfoil would result. Yes?
I want to know what angle of incoming airflow is most efficient if strait on like typical wind turbines then I could add a swivel bearing and a box kite style tail i think this will work great with my joule thief style inverter i use for lighting up to 4 led light bulbs
I tried replicating this using a wooden dowel instead of a metal one to attach the fan blades but my multimeter is not reading any voltage. Could the reason be the wood?
Would it be more efficient to print say, 4 of these for a small scale wind farm or scale this one up 4 times? Thanks.
Do you think this is easily upscaled and if so do you see any problems? I wondedered whether using more or the same size magnets is better/worse than scaled up ones (same with the windings)also wondering if multiples these in a windwall setup could work? Questions and thoughts combined:) Thanks for your videos and wisdom.
Because the airflow is exhausting into the rear turbine with the blades facing in the opposite direction, wouldn't that introduce drag? how does a configuration of a single new blade compare to the two? could the air be re-directed in the hub to angle the air in the same direction as the rear turbine to reduce drag?
Wow 3 times the output because of lift. Thank you.
Is that 20V reasonably consistent across all angles of wind direction to the blades or is there a drop off at different angles?
Genius bro genius I salute you for the idea for trillions years
Could that go in the narrow part of a venturi system?
How would that design of turbine work with water?