Howdy from Central Texas, Robert. I stumbled across your channel at about 4:30 AM and its now 8:15 AM. I've thoroughly enjoyed your videos and I have to say this has been a most educational experience. I'm fascinated by your boat turbine idea and the possibilities for mounting it on the roof to charge batteries. I've got several 3D printers and now you've given me something useful to print. Most of my friends print silly superhero figurines that sit on the shelf and collect dust. I'd much rather print useful, functional things. Thank you for your inspirational and very entertaining, educational videos. I'll be looking forward to seeing what other brilliant ideas you publish.
Would you mind adding a few marks to the magnet wheel, so we can tell if it's turning? A Dark Sharpie or a paint pen should be enough. You could then use a tachymeter to measure the RPMs.
videos aren't good at capturing rotation because they're 25 still images per second. They will always give an unrepresentative view & at certain speeds will show a rotating object as motionless. Much better is some sort of gauge. A simple analogue gauge is a magnet in an aluminium cup, one part rotates with the mechanism & the other holds a pointer & acts against a spring, the eddy currents in the cup drag the magnet. It works with either part rotating.
@@timwoodger7896 Thank you for your kind words. After six and a half decades on this spinning ball, I finally feel like I understand what’s really going on. Peace
Love the design. I may never actually try to build anything on your site, but I enjoy the enthusiasm you have in every video! I almost always dislike the "curb" appeal to wind generation, but I think you could use this design up the corner of a home and it would look amazing!
Down here in the southern US states (specifically, "the south"), everyone loves their pillars/columns. They'd do great on there. Same for classical courthouses! Although, I don't expect them to be adopted, in *_either_* case. 😕 Still, I like your idea with stylizing ones home using them. Functionally speaking, in terms of maintaining ease of construction of homes, I think just having a 1yd/1m stack hanging under each corner if the roof, would work well! All the wiring can be easily plumbed up through the roof then, and into the house. Mounting hardware consisting of only a bearing block bolted under the eave, and an L-type bracket with a bearing for the bottom.
This episode is the very reason I've been waking up each morning and turning on Rob and looking for an integrated wind turbine for a boat. All it needs now is a collapsible set of funnels so the boat doesn't blow over in a cross wind, a venturi tube to maximize the power output of an Archimedes generator which is connected to a sand battery which runs a Sterling engine which pushes a Sharrow Propeller - and when that happens I won't need to get out of bed in the morning. Thanks Rob, you stick in there - you're almost there! Also we do need some statistics on the power, the Amperage and the wind velocity.
I, for one, absolutely LOVE the authenticity of this man’s personality. If I lived in his neighbourhood - I’d definitely love to see first hand how this turbine works on a boat. First time viewer & just subscribed. Thank you sir.
I love seeing all of these different designs! Eager to start building and testing them but that won't be for some time still. Still, grateful for the enthusiasm and motivation I find here.
Have watched many of your videos and have to say, genius!!!!! I love the content and delivery every time. Your enthusiasm is contagious. Thank you and please, keep it just so honest!!!!
I’ve been watching Robert for weeks and thinking “hmmm, how do I translate this to a boat,’ and then “Ta-dahhhhh!” He goes and does it for me. Cheers bwtt!!
Nice idea. I recommend an exhaust horn that mounts over the turbine outlet that is slightly flared and exits down wind. It would be interesting to see how much torque is generated when a load is applied (watts).
Interesting Rob thank you. I live on a Narrowboat in an extremely windy marina and have a heavily modified Ender 3 and lots of filament to use up so am now inspired by your video to do some experiments.
I love your idea of putting the moving parts on the bottom (ground level) for easier maintenance. I assume you could switch it back and put the moving parts on top (surface) for the ocean. Catch waves coming in and the current going back out. Heck, maybe even one structure in the ocean. Half below the water directing wave energy up and a tower above the water directing wind energy down. All maintenance done at the surface.
You don't want the device in the water, creating drag on the boat. Having it in the air on the boat's topsides does create a little bit of air drag, but this is trivial. Every sailboat has quite a bit of counter-productive surface exposed to the wind anyway.
Brilliant, very cool Rob. I lived on a sailboat for several years and often thought about wind turbines being the thing was wind powered anyway lol. I can see the entire mast being replaced with that and a generator powering a motor driving the boat just the same as it already operates. Solar wind is so fascinating. Also could fit several solar panels for non wind days and sail that way. I am thinking a folding mast/turbine tower for low wind days.
@@iamkian yeah, I don't like the smell of diesel so I reckon we would be equal lol. Besides, in port it would fold and be silent anyway. Most ports have bridges that require lifting to pass with a sailboat so the mast aka turbine would be folded.
That looks like it would do wonders for boats, only thing I think people would complain about is you did not show the power output, but with as simple of a design you have, anyone should be able to replicate it and test it on their own
@@markseamans4682 Well, you can call it "a series". Those are building blocks and Robert explained this a few times in his clips. It's like a Lego for a bit bigger kids😁 This part is about catching wind. You can find a part about different ways of forcing wind to move something. Then there is a part about how to change that move into electricity. When you put everything together, you will make a wind generator. But you will remember it has different parts and understanding how they work will help you to slap one together just for your specific needs. It's similar to one bushcraft rule told by Mr. Mors Kochansky: the more you know, the less you carry. And Robert is giving this knowledge here. With a big smile and enthusiasm😃
What size does it have to be to make it a useful turbine for 500w/1000w? Having a 500w on my roof would cover power needed for things like fridges/freezers. Great stuff keep it going, its really interesting
Yes this looks like a definite Improvement to the 4-ft wide 30 ft tall wind turbine Tower that was on one of Jacques cousteau's research vessels in the 70s, as I understand it somebody scrapped that boat out in Oregon and place the turbine in the air to power their house, I recall commenting about this around the time you were doing squirrel cage rotors, with the kind of rotating cowling that you are looking at I think you will achieve very good power levels
The expectable load is proportional to the air friction on the surface of the cones. That friction is proportional to the speed of the air, the radius of the cones and c. While the thingy accelerates the air, it does so most in the center where the radius is small, and the cones are smooth... Hence the power output will be pretty small: I agree
It just isn’t going to work to a useful extent. You are quite correct that as soon as a load is added in the form of the coils and an electrical load, it will probably slow or stop. The biggest problem I see, and I might have said this before on another of his videos, is that it is far too small to collect any useful energy from the wind. Just because it turns at this scale isn’t enough. The power available is proportional to the surface area that the impeller in this case presents. All the funnelling means nothing. And you can’t get something from nothing.
Great project. Aeromine aerofoils in front of the device can be used to focus and accelerate the wind. The fence at the back will slow down the airflow. This will result in some of the air flowing around the outside. A dorade type shape at the top, can suck air out through the turbine. This can be part of the direction fin. Can this be used to condense moisture from the air also? Ways to make water will be valuable for the boats taking part in the GGR retro yacht race. Cold sea water can be siphoned through a condensation device. Solar cooker can be used for distillation.
Robert. I love all your designs but I can't seem to decide what is a thechnical revelation or otherwise. I would love to see a comparison with power output on all of your devices. So maybe compare the wattage given out per windspeed or even power per uk pound (£) spent on the build
I saw a similar looking design for a stacked ion drive the other day, but thrust was impaired as later stages actually restricted the flow from earlier stages. Might this design be improved by increasing the size of the central aperture of each stage as you approach the turbine, encouraging a cylindrical laminar flow?
I had the exact same thought as I watched this, airflow will progressively increase as you move up the stack. A widening aperture sounds like the logical step, though airflow tends to do unexpected things so would need plenty of testing (ideally simulation to start with).
Awesome. Love the concept. Looking at the strength of the wind you were in it could well be more productive than blades (as well as safer). Probably a lot quieter too, which would lend well to boat roofs. I'd love to see a finished unit with power output numbers. Well done!
Propeller blades are inefficient. The area of force is much greater than the area of the blades. If the blades had a larger surface area they could convert more energy from the wind.
@@BenEehayeh wind turbines can extract up to 50% of energy from the wind, following your logic the blades should cover 50% of the swept area , but they not. btw... did you know the wind turbine is not "pushed" around by the wind force but rather "pulled" around by aerodynamic lift of the blades generated by the blowing wind ? so this concept turbine of Robert will not increase efficiency (it might actually decrease it due to friction loses while redirecting the flow), but it will transform the "dynamic" swept area with flying blades into a "static" swept area with no moving parts (hence safer). i think it's a neat idea definitely worth of investigating, but i don't think it's anything revolutionary :)
@@robertjung8929 What is the cut in speed for propeller blades? 8-10 miles per hour winds. Non-propeller designs, like the helical DNA shaped blades, begin to rotate in 3 mile per hour winds. Helical wind turbines have been in use in Europe for 20+ years.
i ask you for a turbine genny design for my camper and lo and behold, two weeks later you come up with one. how's that for service with a smile? forget about a day, you've made my year! thank you from the bottom of my little black heart!
great! Would love to see how efficient this thing is - and how it performs with a somewhat heavy generator (as you probably don't want it to spin too fast ).
Enjoying the content and the way it's all so easy to create and understand. I get the use of 3D printers is also increasing in popularity, but for those of us without one, converting every day items to do the same thing would be interesting. Maybe the use of sport / training cones (which are similar in shape and size to your printed cones) may be a adaption worth considering.
Hi Roy, I tend to agree with you. I am thinking, since I am in a boat yard at the moment, with several people interested in clean energy I will be talking with a few others about a group buy. You may be able to arrange the same thing in your area.
I agree. A lavalier mic for $2 and a long extension cord to the Zoom sound recorder, camera or pc, would change things dramatically. The message in the video's is getting through but a better mic position would make a big difference.
Other than measuring some voltage outputs, has anyone measured any power outputs with varying loads to determine how the concept actually performs? It’s a great concept and your work is engaging and really informative. Stay curious!
I would argue that watt output is a sufficient measurement as at the end of the day, that is all we really care about. Having a generator built up, with a couple wires running down to a test bench, you only need to measure the power output of as you apply a progressively larger load and see where the wattage peaks before stalling the turbine. A large fan, such as a positive pressure ventilation fan used by fire departments, could be used within an enclosed environment as a static source of wind, a conventional wind turbine tested and your unit tested to compare. My long term life goal is to build a self sufficient electrical powered sailboat (with a diesel generator for backup, because I'm not totally crazy, but hope I never need it). Wind turbines are commonly under powered, noisy and bulky compared to solar and hydro power generation, especially when looking at a huge power budget of induction stove tops, convection microwave, electric incinerator toilet AND an electric drive motor. Not to mention, fridge / freezers, washing machine clothes dryer and electric heating / cooling (reverse cycle marine AC with sea water heat exchanger most likely). A couple of these high on the mast may be quite useful, IF the power output is worth the extra weight up the mast. Another thing you might consider, is some way to turn it off. On a following wind, capturing and converting to electrical power will also produce some mechanical force helping propel the boat, but any wind coming from forward of 90 degrees will also effect a force on the boat, in the wrong direction. In most cases, this won't matter that much, but on light winds where you want everything to work for you, anything working against you is bad. BTW, hi. Random RU-vid recommendation brought me here.
This was pretty much exactly, what i concluded for my use case following this wonderful Channel. Thank you very mutch (yet again) for this specific one and for the whole journey up until now! And Beyond!☕
would you mind printing the next parts with different colours kinda to match the cad designs so its easier to see what parts are what especally if they have moving and static parts ?,...or a little bit of paint / pen markings just so it has a visual of it spinning on camera 😆 hard to see whats moving and whats static with it all being grey, untill you did the topdown view of the impella but with you adding more and more items to these designs it just helps it stand out.
You know what'd be interesting? You had one design where you the funnels pointing down to direct wind and catch it. One of the renewable ways to cool your home off is to have a big set of pipes underground that cools the air... I wonder if this could be placed over the inlet as a generative force and something to help move the air? I don't know how much force it creates, if the run would be too long would it stagnate and stop moving the air? I kinda want to build one of the larger ones now to do some home tests! :D thanks for the content!
Might a second unit at the outlet work to act as a pulling force draw air out of such a system too. Albeit, you’d want to find a way to draw other ambient and outlet air together. Hmm… ponderings
@@martinsmallridge4025 a second unit mounted higher than the inlet and inverted would. Wind In at the sides then directed up and out would likely generate a low pressure area centred below it in the pipe. Unless my mind is wandering.
Agree, although both directions are useful: cool outside air inwards, or warm inside air outwards. More importantly, the mechanical movement can power a coffee burr grinder! 😄
To make it funnel more air and to right it to the wind in a nice package you could put 2 funnel edges added to the sides where the shroud stops wrapping around and a third larger one as a tail in the middle on the back of the shroud.
So my next question with is, how many can you stack. Do you get better results stacking 6 elements with a single turbine on top, and repeating again with 6 elements and turbine. Or 12 elements and a single turbine in one. which give best performance. at what point is there a diminishing return on the height of a single tower.
There would be a limit based on the input flow, where if the flow force added by the additional disc air was equal or less than that already rising then no further power is added.
This concept of wind capture implemented in to a panel system similar to the wind wall would be amazing. You could build fencing with it and clad whole side's of buildings with it. Just think of the surface area a typical house wall has.
Ok that's really cool. You could stack these and have them spin each other in a daisy chain, and just have one opened at the top to take the air in and spin, feeding air down into the others. This is such a neat concept!!!
Hmmm. The power from a conventional propeller is generated at the tips which in turn produces leverage, which is why the larger the propeller diameter (think wind farm) the greater the power. This turbine is too small, as soon as you add coils to produce a voltage, then attach a load, you generate electromagnetic breaking. There won't be enough leverage to overcome this unwanted effect. The whole thing would need to be much larger, including the turbine.
I agree, the effort to produce ant dereee of electrical energy would be so tiny it is useless unless of great size. The only advantage I see is that the wind direction is not a factor as in a conventional wind generator. Height and blade diameter is a major factor in utilising the generating capacity of wind.
@@warrenelliott4555 I agree, also wind at rooftop level is completely unreliable , buildings interfere causing eddies etc which is why wind farms are on top of hills or at sea.
Alternatively 100's of those dotted all over my house n garden would produce a lot of battery charging power n not disturb neighbours(they'd just think it's that crazy guy again) ... I'm thinking rainbow colour...
I love the design. I would like to know its efficiency. Does mounting magnets in the rotor and putting a coil around the rotor convert power as efficiently as an tradition wire wound generator mounted axial to the rotor?
Nice idea on a moving vehicle as it's generating during any journey regardless if it's windy or not. I wish you would do a return video on the diesel air heater for efficiently scavenging heat from the exhaust.
You need to study up on the concept of 'perpetual motion'. The energy needed from the vehicle's engine to combat the windage would not be off set by the amount of power produced. Way more efficient to simply have a mechanically spun alternator / generator. Now if you were camping for a few days next to a desert lake or along a sea cliff say... then it would be a nice bit of kit to augment other power production.
I am currently buikding a new type design passive solar greenhouse and ive been wondering if it was feasible to generate power from wind hitting the south side glazed panels utilising the ridgeline, maybe this is the answer. Thanks.
Free spinning in the breeze is one thing, have you tested the design underload? I'm guessing its good for milliwatts only. Maybe scaled up it may amount to usable energy. Interesting experiment in any case
Hi Robert, this is amazing! I'm wondering if the limiting factor on this isn't the wind input, but the wind exhaust? I love this application! Thank you!
The limit is that you compress/speed up the air to move through the smaller area of the turbine. There's quite some loss attached to this. So using a device like this makes only sense if you otherwise cannot achieve such a large area (safely). The compression of the wind will increase depending on how much energy you extract - so your electrical load - which would need to be managed to be in an optimal efficiency range for the blade pitch/optimal RPM for the generator. If you want to simplify the system electrically, you could use centrifugal force to adjust the blade pitch to keep it in an optimal pitch for the wind pressure (aka wind speed). So you get a variable RPM but an optimal pitch to capture the wind with optimal efficiency. The variable RPM can then be converted to an optimal RPM of the generator with a CVT - instead of using magnets in the rotor itself (which is a stupid idea to begin with).
Hi Rob, Now we talking, a great idea for a boat. Instead of trying every combination of wire turns for the coil can you give us a guess for numbers of wires for coil for charging a 12V battery. This is critical for a boat as we need to be able to start the battery after a long lay up and for the bilge pumps to be operational 24/7. in my case I have the worst VAWT which produces a max of 0.5 Amps in the strongest wind. I could easily swap it for this design. André in Sydney
@Rob, as a sailor, I love this one. Very interesting indeed. I'd be curious to know how you would calculate the efficiency of that turbine. I know you mentioned the area of the cones would be what you use, but if you could make a video on how you would go about inputting that into Omni Calculator to get a sense of efficiency, would be pretty interesting for anyone looking to expand on this idea and wants to calculate it properly. Just a suggestion mate! Really enjoying the whole wind turbine stuff.
@@davidanderton2437 What? efficency= wind velocity X surface area? whatever mechanism is in that area? This can not be true - u get it yourslef, right?
@@sonic_P sorry I should be more precise in what I write. You only really need the area and velocity to calculate the available power. It's not as simple as multiplication but not far off. 0.5 X air density X swept area X velocity cubed.
Robert, the development of this project has really caught my attention. I'm fascinated to see where it concludes. could this be a foundation for a power-system to run your garage from?
@@ThinkingandTinkering I currently have a mini solar system running 12v and 5v power supplies in my garage, just enough for simple LED lighting and phone charging. this wind turbine project of yours may well end up as the reason I buy a 3D printer and make some little wind turbines in addition to the solar rig. keep up the good work Sir! Mike
Make possible that E V cars to get charged while on drive. One side battery discharges power ,on the other side through this wind power generating turbines the battery gets charged. So, there is no necessity to plug for a charge . it automatically gets charged through alternator and discharges power for rotary motor.
Awesome idea and prototype! Love it! Reading through the comments many seem to be hung up on powering up a huge generator and living off grid or just coming up with ways it won't work. This is a prototype. It's the first step of working out an idea! Why not start small and maybe focus on charging a cell phone. That would be great for a minor power outage then develop the idea from there.
Another thing you should look at is differential pressure system based wind generation. there are a few new wind turbines where instead of using the wind to turn an turbine outright. they instead use hollow wingforms attached to long tubes with holes in the low pressure areas of the wingform. When air is blown over the wing it creates a small vacuum like we use for lift in airplanes. However in this case with the holes in the right place the vacuum sucks the air out of the pipe attached to the wing rather then creating lift. you can then stick a turbine at the end of the pipe to generate power.
I was thinking the same, use the wind power while driving to charge the batterys in the camper van as solar is not always great in winter so any extra electricity would help
@@replikvltyoutube3727 yes they do but unfortunately in tropical areas where that's a huge problem it also coincides with still days . Humidity and still days is the most awful experience especially 4-5 days straight . In this situation you would have to use the energy to spin the motor for airflow
Hi Robert. Just finished building a new 180MW geothermal power plant in NZ but I want to experiment with my own no-visible-moving-parts wind generator at my home. I want to make it a decent size, maybe 2m-2.4m height. Expect it will be made with a combination of fabrication and 3D printing. What form of 3D printer is best for complex shapes, ie. Winter’s turbine and shroud? I have a roof ridge line that faces directly towards the prevailing wind so could have a bank of 4-6 unit’s along the ridge. Id like to take advantage of the increased wind speed from the 40deg roof pitch too. Btw, you videos are clear, concise, informative and full of really great information. I’m looking to buy a 3D printer but have 0 experience! Thanks, Andrew.
The roof-based collector idea is something I'm really interested in. I'm trying to see if I can make the hyperbolic cones threaded so one can simply screw into the next (though I'm not sure if that might make them too weak)
Guys - is there a forum anywhere that these projects are discussed on further? I understand that Rob is creating these concepts and inspiring us, and hasn't the free time or necessarily the motivation to progress each concept to fruition. This generator is hugely interesting to me as a narrowboat owner, so I'd like to take it further, adapt the shield to support a vane, add a suitable coil and then weatherproof the whole device so it can be trialed in-situ. I don't have the skills or the knowledge to do this, but I'm sure there are other viewers here that do - hence the idea of a forum where build threads can be observed by all and thus refined over a period of time from the feedback. So, where do I start? Cheers, Steve
Back when Rob and Luke streamed on Twitch we suggested a Discord server but I can't remember what happened to the idea. I think it was a case of another thing for Rob to manage and feed so it didn't happen.
@@YoureNowOnTV I assume that maybe Luke or a nominated outsider could admin/look after the forum with Rob popping up now and again to chip in if inspired to do so? I can only see it becoming a hotbed of ideas, and it may alleviate the number of messages that Rob appears to receive. Shamefully I'm too old to understand Discord, can you post images etc like in an "old school" forum?
Very nice concept, it would indeed make a lot of sense on a sailboat. Now it would be particularly interesting to get an actual "power to size" measurement. I think that even a small 50-100W turbine would be very useful on a sailboat, simply to back up the solar panels and give some charge during the night or cloudy days.
Robert, super interesting and with great potential. You talked about capture area versus swept area. Is there also a sweet spot of how many and proximity of stacked cones in terms of power output and or efficiency? I can't help but feel that too many stacks or proximity would lead to air being "slowed" by boundary layer surface effects (think friction)- in essence a fixed "overhead" or "cost" (for want of simplification) for trying to make the system bigger and more powerful. Any thoughts or analysis on this side of an otherwise great concept?
@@satan.is.my.copilot I hear you mate BUT “make it difficult to watch” 🤣 some folk just need to man up! My ears are smashed to pieces from a full career in warzones with zero hearing protection and predominantly around .5 machine guns, I can hear it fine, it’s actually not bad in the slightest it’s just not perfect, god knows how some people make it through the day 🙄
He ain't wrong though. I scrolled a bit and gave up. Bad audio = no watch. More than a guy can watch in a lifetime uploaded daily, most don't sound like they used a mic in a porcelain bowl in a tile washroom. Get a $30 lav mic and your views will 10x.
I might think that a shield to create a low pressure at the turbine exhaust would improve performance. I also can't help to think that as the stack grows, the center hole should become larger to accommodate the greater volume provided by each cone.
Printing one of these now for my mate who recently got himself a boat! I told him about your videos about wind generation and how he could maybe make use of one of them for his boat, 3 days later you posted this! Any idea how many of these it would take to charge a leisure battery for charging phones and laptop use etc? Thanks Robert, my dad and enjoyed watching the 1kw battery for under £100 series when he was recovering from a period of illness. He done his degree on the environment with the OU so was just what the doctor ordered
Great idea Robert, It is always inspiring. I will try to scale it up and show you the result. One of my concern is about snow. I live in Canada, and as you might know we get snow storm sometime. Although, during those events the wind is great and can get up to 12m/s, the snow pushed by that wind can glog any mechanism. The snow can also melt and then freeze again during a 24 hours span. I will have to come with a solution, but the basic design is fantastic.
@@sindeclerc7506 Not really because at that windspeed the snow travels almost horizontally. And the cover would also prevent the wind to exit the turbine. The cover would be usefull though, when the snow falls without any wind. For those situations, there would have to be a space between the turbine and the cover so the wind could exit. I will come up with something
Great idea, love it. trying to take my lighting off grid and using a couple of these on my shed to generate enough to power them through batteries and an inverter. This will be my first build, quick question, how many turns do I need on the coil, and what wire thickness.
A year ago I was fooling with the shield idea to help work a vertical rotor ...THIS design is Lightyears ahead ! Plus being omni directional makes it maritime application perfect!
love it... but less moving parts on a boat the better... have you looked at Davinci turbine principle to use the wind turbine above the roof to remove (suction) heat from the attic as well as make power. I live in Florida where it is summer 10 months of the year. biggest cost is cooling the home. Thanks
Like the idea a lot! Put this on the roof during a hurricane and might be able to charge a watch battery and then be able to light up an LED or two. Make a full sized model and maybe could operate a small radio. Cool Beans!
It's great to follow and learn. Spinning without friction is first step. Spinning with a load is going to be the next step. Windforce needed to generate a certain amount of energy. Looking forward to that.
Nice looking and interesting concept. However, since the turbine it's inside and the output / load seats on the exterior, it means it'll have very low torque. What about reversing them by directing the air from some bigger cones towards the exterior of the generator disc? Thanks!
Great Design.. Thanks for sharing your tinker cad files. I think you would see improved performance with the air directed up. My theory is the capillary effect would draw more air through your generator.... since air speed is higher at greater heights.
dumb question, could you increase yield by directing the wind though a second turbine? just a second disk with magnets that spins independently of the current one. even if its less than the first its still additional power.
I always have a breeze to a moderate wind Something on a larger scale could provide a lot of power if done correctly. Iv'e watched a ton of your videos but this one got me to tickle the subscribe button. I already have so many ideas and have started sourcing parts for the build.
Try adding a hood/top on it shaped like an overturned v bottom boat without a transom,with a vane on the rear keel. Free to rotate with the wind. Theoretically this should create a low pressure area at the outlet for the turbine. If attached to the shroud as well that would keep the open face to the wind.
This is tremendous. We are off grid in our motorhome & have been looking for something to supplement our solar with wind for those dark, windy days or nights. Could this be rigged up to a controller with an Anderson plug attachment for a simple “plug & play”, portable system?
Two quick points. 1) It has to remain on a vertical axis. That isn't a problem, but at the end you seemed to be considering a horizontal position for boats. That means you'd have to steer the whole body of the thing into the wind which defeats the multidirectional design you just created. 2) You got it spinning at a good rate, which is awesome! But how much torque is there vs how much is needed to turn an alternator? Find how much torque (work) it will generate and find (or make) an alternator that will work with that.
What kind of yield can you expect from this? Without a circuit attached, it's effectively spinning freely and thus not resisting. However, if you start drawing energy from it, it may start stalling.
Brilliant design Robert in closing that back is something that I wouldn't have thought of but that air has no choice but to go up towards the impellers propellers fins? Whatever you want to call them good job
Thanks so much for the ideas and the designs. One quick question - when you are printing these out, assuming PLA, are you using supports of. any kind? If so, which kinds? I am printing the Bells right now and there are an awful lot of supports. I am curious if they are. going to get in the way of the actual design when coming off. If anyone has any tips on printing these designs, let me know! Thanks!!
