If you want to have a look at those special videos become a member and join by clicking this link / @thinkingandtinkering Details of the motor conversion are in this video • Things To Do With An O...
This is the kind of thing I want to get working with, as I am in a 2nd floor bedsit!! How did I miss this the first time around!! I shall be spending the weekend on binge watching, as many of your uploads as possible Robert!! Thank you so much for the inspiration! Andrea, Jasper and George the Pigeon. XxX.
Cheers from Durham, Durham! :) I would apply all this high intelligence low tech to make the small things work. Wind and thermoelectric generators in a van, for instance, for appliances and what not. Makes me happpeeee
@@lokiii3507 Yes Those Flat Spinning Disks On The Top Of Vans And Peltier Units Attached To Points Of Heat On The Engine Would Create A Decent Amount Of Power Even As Reserve Top Up Bless Up
Now imagine even a handmade rocket stove (with a see through window) for heating. Connected to it a thermoelectric generator and water filled copper tubing connected to the insulated water storage unit and floor heating. What a life!
I have built wind turbines for over 50 years. The bottom line is, vertical access wind turbines are fun to watch and I have several, but a horizontal axis wind turbine makes better use of swept area. I dislike a lot of machinery whirring about at breakneck heights, so all my wind turbines are low to the ground and have big paddles, which hang out into the wind. They are all the drag machines, but I have never had one, fly apart. I cannot say the same for my horizontal axis wintd turbines. I conform to the theory that many small units produce the same power as one giant one and I have several small savonius units happily spinning in almost any wind here on my little place in North Texas. If a blow comes along, I don't worry about a thing. My savonius windmills are all made with ball bearing axles and are fabricated from welded steel.
It appeared to me as tho the squirrel cage with the curved blades spun easier and faster than any of the other fans that you experimented with, also if you had a number of theses on a rooftop they would also spin no matter what direction your wind flow came from.
Yup. The Vacuum impeller would work better if the airflow would enter from the side and not the center. The cone in the center would make an improvement whatever the direction of airflow. Playing with the geometry could improve it even more.
@@isaaccoen-graham8867 What if instead of a flat "fan" piece, you were to angle it slightly backwards towards the wall (\_/ with less slope and the wall at the top of that poor diagram), and have it offset from the wall about 5cm (2in)? Also, you don't have to absolutely cover the wall, you could allow space between for that air to escape either returning to the front side or escaping behind the rest of them? Maybe also about (again) 5cm or even 10 between units? I hope that makes sense, maybe I'm explaining it wrong.
The 'flat wind generator' idea wouldn't work well with mutiple units, but I do think the wind wall idea could be usable - architecture does funnel wind around, and a wind turbine designed to take advantage of this effect, and positioned along the edge of a wall, could be viable. Not massively powerful - you're not running a house off it - but viable as a power source for some LED garden lighting. Have to make sure it runs very quiet though, people don't want whirring fans in their garden.
Gday mate, a heater fan from a car with some weight would spin for a while,they look like the squirrel cage, by the way you are the King of you tube.All the best from Australia and please stay safe.The world needs you...
the round element squirrel cage was a pleasent suprize, as was the flat cone one. i bet nesting concentric flat cones wood work even better. it is a pleasure to watch your vids, you often come up with quite interesting & amazing stuff.
After spending the better part of a day standing in front of my giant shop fan playing with various types of fan blades including several vacuum cleaner turbines I've made an observation. The vacuum cleaner turbines are designed to flow air in the opposite direction than you and I are moving the air. If they were shaped so that the air could exit through holes that were wider than the holes in which the air enters (the opposite of what you have now) I believe they would become much more efficient.
Wonderful the delight you have and share with everyone....such a great lift when learning something new and maybe complicated. Brilliant idea - as a Wind Wall. Working in Diamond or Star or both shapes in sequence, they would keep each other rotating almost permanently. Especially towards the Corners of Buildings where Vortecies are normally generating high levels of energy... Capturing these energy spirals and then passing them back to any passing Winds on low energy areas of Flat walls would I believe help to regulate Airflow overal as well as wicking heat away when needed, to be used by heat capturing Technology. 🙋♀️🌈🌞
Mr. Murry-Smith really neat idea, honestly the flat wall turbine... neat ,clean,Suttle as to not stickout easement. Thank yous for sharing. Well done on experiment and tutorials on the findings. Appreciate your time and effort
I used to work at Moog and we did CPAP motors there. They were BLDC motors with the black impeller like you were using. If you hit them with compressed air, they would make up to 60v of 3 phase power in back emf. I had always thought arranging them as planets in a planetary orientation as a wind turbine.
Present for class! 😊👍 So my creative mind is saying .. why not make a large venturi vortex cone (funnel) to be at right angles to the center .. to collect the wind .. and then put it on a wind swivel directed pole up in the air. I nominate you for the best teacher of the year award!!! 🏆
Dear Rob; Your last design with the cone at the centre looked good to me: I thought, we could invert the cone sides making it more pointed! Then adding a funnel to the centre to increase the catchment of air, would improve the pressure 10 fold at least. Next: we could use any spilt over air that could not flow into the funnel, to act like a vacuum as it passes the exhausted air. This in turn, would help draw away the spent air. All good stuff for our practical people. thanks from Chris.
could mess with the diameter of the center intake port as well and make the cone's size proportional, increasing or decreasing the overall amount of surface area the turbine has devoted to air intake, when my 3d printer is up and running i'll try to take a look at this.
The power output of that tiny motor is surprising. I like that last one with the cone. It brings to mind the works of Viktor Schauberger. I imagine his study of fluid dynamics can also be applied to air flow. I think I will experiment on a way to capture the spill-over of your vertical blower and see if there is enough increase in efficiency to make a difference.
Nice job Robert. When you put the cage with round bars on the generator, it came to mind that instead of round the bars should be squashed and made like an aeroplane wing with an adjustable angle of attack. If you try this, I am sure you will have a very robust and efficient wind generator. Then I though you can chenel the exhaust of that fan and it to run a Tesla turbine. The Tesla turbine should have turbo fan on it a aircraft type turbo housing. I think you just solved the jet fuel issue. Bravo!. This can be started electrically but once over 5klm per hour the telsa turbine will be screaming and you would have trouble moderating the engine for taxiing etc. Love it.
Hi Robert, what I was referring to was the shape of the bars in the cage of rods. Aero wings work on lift so I was thinking you could reshape the rods so they can harness the wind to use that lift effect to rotate the generator. The Tesla turbine idea was simply to replace the jet engine with the Tesla turbine. The output shaft of the turbine is fixed to the turbo fan from the turbo prop engine. Use the airspeed of the aircraft to run the Tesla turbine. 30,000 rpm will give huge thrust. Sorry for any confusion.
That was what I also thought. Use one of the cages and thunnel the wind to the center for the last design. Perhaps also add the vibration method that was in a previous video to catch the imbalances of the system.
There is a company that did a Edit: quad sectioned 360-degree funnel system to gather low-speed air at ground level 4 kph and with an aero-spike facing down and the tube with a venturi shape to increase airspeed they then had 90-degree turn to send the air through "normal" wind generator blade set but with your last set up it could just go straight down losing no energy to the turn. Interesting and thought-provoking as always Robert thank you.
I was just about to make the suggestion of the vacuum fan when you came out with it. Unfortunately the wind would have to be pretty constant in speed for this to be worthwhile, but good ideas can usually be improved (by someone with more brains than me) however thanks for an intriguing thought.
Thanks for stimulating our imaginations Robert. This gave me an idea - if you mounted this on top of a vertical10 feet long stove pipe, maybe the air pressure differential caused by the stack effect might create a draft to turn the impeller.
At first I didn't care as much for your favorite choice, the last one, but then after given it some thought, it being such a low profile piece would be great in some applications verses bulky designs. Great work. I love this subject matter you're currently on.
A cone concentrator (not sure if it is a right word to use) could take this design to the next level I think. It can be easily attached to the base around the flywheel so without adding any weight to the moving part more air will be forced in the turbine.
You mean like a big funnel attached to the base aimed at the center of the impeller, to catch more surface area of air to up the air pressure and push it through faster? I thought about that too.
Robert I had drinks on the patio of restaurant once on a harbor. On the rail was a peculiar nautical wind toy, the kind that usually drive some mechanical wooden animation. This one was round on a bearing and flat disk with 4 masts. The masts had little sails held out by little strings that allowed them to gybe as they were constantly coming about. The speeds this little toy got to caused a whirring of sail noise. It has always stuck with me how efficiently this toy harnessed the wind
@@ThinkingandTinkering one of the parts of it that puzzled me most was that it was affected by very slight changes in winnd speed. It, with very little change in the wind would suddenly take off nearing coming off the hub, then go to a gentle rotating. I attributed this to sail angles and the energy/ time inertial and centrifugal forces on mass of sails. Not something I could work out on a bar napkin
@@ThinkingandTinkering I read once you can draw voltage from the edge of a spinning disc of copper. Combine this with a magnet mass on sail tip moving past a coil as it gybes and harvesting the vibration on the center mast spindle because of the imbalance. How would one add these currents together ?
That worked extremely well for just some would slapped together as you say 💭 it is proof of concept and if you made it better and on it's side then it would be omni directional as far as wind, cool 🏂 video
I would really like to see what engines you find interesting. I am fascinated by stirling engines and others that can passively harvest an energy source. Like the drinking bird. I love watching your videos! Great work
I especially liked his video on "Wave Power" (ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-nLFs7yV-QMY.html). Get a whole boat's underside covered in this setup and you're on your way! Well, not really, it's super low output and would be a lot of extra drag, but still a cool idea. Completely passive.
I'd like to present an idea for a constant wind source.... you always get me thinking.... It would require a busy highway.... How about running over a garden hose with one way valves at each end to charge a storage tank ... once the tank is charged then it could be released to turn a series of wind generators... It would also be interesting to see how much pressure you could actually build using this method of recapturing energy....
They use this principal already but for surveying how many cars use a road. 2 pneumatic rubber tubes are laid across the road, parallel with each other, connected to a sensor box on one side of the road and sealed shut on the other. When the distance between the tubes are known, the time between the pulses of air can determine the speed of the vehicle and it's wheelbase. 4 pulses = 1 vehicle.
What if you added a low angle cone on the outside of the flat wind generator that would redirect the air towards the center? I'd assume you would get even higher output, however having a wall of them could be problematic due to the exiting air interfering with the others, but that is just a guess.
If you blow through a funnel directed at the disk, will it increase the airflow like water flow being concentrated this way increases the water flow rate? Previous wind generators you made could benefit from this.
I would to suggest that you try to test the squirrel cage fan with a cone, with wind parallel to the axis of rotation. I think that would open the door to a whole series of videos for you
Thanks for the Spark . Mr Smith, where can I get some water based graphene paint? I want to paint my steel wall and hook up one of my 20v 9amp panels on it and see what happens.
Here's one of Rob's videos that I used for making graphene easily and cheaply: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-hFUOsZ0LSkQ.html and this one for making inks and paints: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ot9gz-bAIss.html
Have you ever thought of adding a air horn trumpet style cone to concentrate the air to the center which would increase the wind velocity at the inverted cone at center of your impeller style flywheel. The final design would look like the old Ford Model T “A-O0GA Horn. That would take pressure off the flat surface of the flywheel and increase the air pressure at the center. That design might increase the Venturi effect at the discharge section of the design. Another thought I had was to deflect the exhaust gases toward the leeward side of the configuration to increase the Venturi further. Just a thought, if this has already been addressed, please forgive my ignorance, it is just that I have neither read it in the comment nor hear heard nor seen it in your videos. I find your videos fascinating and inspiring. Thank you.
I think that the black squirrel cage fan is more practical since it is omnidirectional and, therefore, could be mounted on the roof of the building and it would work regardless of the wind direction.
An interesting topic, just a thought it might improve the efficiency of the cone if it were to have a spiral texture thus imparting energy to the centre as well as the blades
Very interesting what you're building out of scraps pretty much ! in third world countries they should really pay attention closely to your channel :) I mean not only but these kind of things you come up with are really impressive and it could really help some people out there, also, interestingly enough I was thinking of something similar yesterday !
An old electric organ has them in also. Yes I'm like you and took my organ to bits to see how it worked or should I say how it never worked again so I had nothing to play on! I was young and was great at taking things to bits but not putting them back together again. It's a shame because that organ would of been worth a fortune now!
Not much actually, if you hold a funnel to the wind you aren't going to get more compact air or faster wind out of it. In fact, the turbulence created by the walls probably reduces the power coming out from the other end and the wind that can't fit in there will simply flow past the funnel.
9:30 "...these would actually fit on the side of a flat building.. " Well, sure, but wind does not blow agaimst a windward flat side of a building in the way your hair drier blows down the center of the your impeller. Blunt windward surfaces generally only experience a small fraction of the wind velocity of the free stream, and it is not perpendicular to the surface, but pretty much parallel.
@@crapisnice I'd give the credit to empiricism as the source. Go outside on a windy day and stand with your back to the windward (overall flow direction without obstacles) side of a building. The air has to have somewhere to go, it does not simply blow up to the windward side of a blunt object.
how much does the displaced wind reduce in speed with the “flat discs” format? would it be possible to manipulate the output such that it turns the squirrel cage?
@@ThinkingandTinkering if you could place squirrel cage generators in 1 to 4 directions around the flat disc generator, then cover it up so the flat disc generator is the only one you can interact with outside the wall, how much additional power could be generated from the displaced wind blowing into the added squirrel cages? essentially 1 point of entry but up to 5 generators together... i dont think it would be wise to add an additional layer beyond that though. probably not worth it beyond that
Re the impeller, adding the cone to direct the air was obviously necessary, but I think to properly adapt the impeller to work in reverse as is being done. It would increase its efficiency if a funnel was attached to the central hole, so widening the area that can catch the air, and perhaps increase any central Pintal force that may be in play.
You should do this with an old hdd. The frictional losses are way way way less comparably. Actually can you do this with a hdd and still charge a battery granted it's a brushless motor? Or would it need to be rectified?
That last little black rotor disc is taken from a vacuum cleaner motor. I like those motors brcues they are universal motors. Very flexible for making things like a band sander. Edit 10:03, Oh............
Try the experiment of the last device with the squirrel cage. Put a flat piece of plastic on one end or the cage and apply air flow to the other end of the cage, not to the blade edge
Would that specific motor you are using, have enough power to charge a battery charger? Obviously I'm thinking of an off grid situation where you just want some extra lights in Winter..
I like the idea of combining a bunch of little wind generators, but how do you combine multiple generators? I assume diodes. Maybe a worthy topic to go on about?
I think your tesla turbine type would work even more effecient if the wind came from behind and routed in the outside fins and escaped from front . Opposite to your entrance . This would take advantage of low pressure turning into higher pressure . Sort of venturi effect !
You can tune a Tesla turbine for different fluids and flow rates, but they tend to foul up rather quickly when designed for air due to pollution and pollen and such. It's another one of those things that work perfect in the lab, but not the real world.
I dunno mate honestly - this is just a basic concept idea - I know Mike Waters has done a lot of work on the final design I demonstrated if you google hime and wind generator you are bound to get a lot of info on efficiency, output, etc
What if u had a wall in between the cone and air coming out the side that let air out of the turbine but left the cone area open for air to get in on the last turbine. On a large scale it might reduce friction but stopping the air from hitting the sides. Maybe not but just a thought. Very cool designs
The last example seems to be more of a concentrated wind pressure device which needs a way to funnel the air in as the intake at the centre is small and the output ports are larger. I don't think it would work well on a solid wall because on a wind generator the power output is proportional to the volumetric throughput and a solid wall would block the air flow. so you could consider a matrix of these on a wire fence, I think that would work much better.
In places with no wind but lots of heat you could have a long black tube with radiator fins on the inside hot air rises and passes through a generator at the top and one as it gets sucked in the bottom.
Is anyone familiar with the differential between a standard impeller from an air vacuum as demonstrated herein and the mechanism behind the Rainbow water vacuum?
Why not take your last one, the flat wall version and put a big long horn collector in front of the center opening to better match airflow impedance. At the mouth of the horn, you have the high mass flow rate, low pressure wind (low impedance). The horn will be acting like a transformer, gradually changing the wind energy impedance as air moves from mouth to the horn throat to make a higher pressure lower volume airstream before entering the center. This may result in a better, more efficient match of source and load impedances. Impedance matching may improve the efficiency of the energy delivery. Horns are used as acoustic transformers, this is just pushing that concept to near DC.
could take the flat wind generator and combine it with a sort of flattened squirrel cage design so the generator can function from multiple angles perhaps or you could make the flat wind generator not flat at all, elongating its design to allow alot of space for the air intake and outputs so it can theoretically catch more air and accelerate faster.
It seems to me that a lot of wind would slip off away from the central circular inlet, especially due to the spinning air exiting the other ring area, causing a low pressure area around the rim. I believe a funnel on top of the inlet would funnel more air into the fan. It would increase the pressure at the inlet and therefore a higher pressure differential between the air inlet and air outlet, thereby increasing velocity and therefore power output. Simply cut off a car oil filler funnel and glue on.
I would sure love to talk to you. I've been working on my project for a whole lot of years, alone. It's not going anywhere fast with just me. I wish so much that I had someone like you working with me to bring my SolarBreeze to life...... when I began all of this, my knowledge of electricity consisted of, Don't pay the bill, they turn it off, don't poke things into the outlet holes and keep away from all liquid stuff while standing in it.
lol - you learnt all the essential things for sure - I can try to help but I won't be of much use as I do get rather a lot of requests and I already devote 3-4 hours a day answering email, posts and comments so there is a limit to what I am able to do - but if you fancy asking, feel free and I will answer what I can - robertmurraysmith64@gmail.com
@@ThinkingandTinkering I designed a wind powered electric generator that can be built into the attic of a building kind of thing and can also be portable. Are you on face book messenger, by chance?
@@ThinkingandTinkering I just need to build a micromini prototype.... THe problem is, I'm not in good health at all. When I complete the prototype, I will begin getting enough money to afford treatments that my insurance wont pay for. It could save my life. I'm afraid that it will go to the grave with me. To me, its so simple, really. I can see it so clearly in my head and the versions I've made so far worked, but led to more redesigns..,. I just need a barbie sized one... Oh, and patent pending
I'd like to build a boat propelled by a Savonius rotor sail through a shaft and gear arrangement to a propeller. You could sail it in any direction regardless of the direction of the wind.
@@XwpisONOMAActually, it has already been done years ago. I saw it in Popular Mechanics, or Popular Science, or Science and Mechanics, one of those magazines.
I believe Savonius did that himself. I remember seeing a picture of him plowing across rough water with it. I expect you could tack into the wind like a normal sailboat, but the rotor’s wind resistance overcomes any energy the drive train puts out. Savonius rotors are fun and easy to make, but are among the least efficient omnidirectional turbines. There have also been sailboats built with tall rotating drums which generate lift on one side as the wind blows by it. I have also seen a small RC airplane that used rotating drums for wings. It actually flew quite well.
Guy Pehaim - the sailboat with the rotating drum sails (3 of them ) also worked on the magnus effect. I wasn’t saying the Savonius rotor had anything to do with that effect, only that there were other omnidirectional wind machines that had been used on boats. Savonius rotors are nice because while inefficient, they are extremely simple to construct in sizes that can generate quite useful amounts of power.(they also look really cool.. the Darius rotor which looks a bit like a vertical eggbeater, is a much more efficient omnidirectional rotor, but it often uses a small coaxial Savonius rotor to get it started. Like the standard three bladed wind turbines it can spin faster than the air that moves it.
I would be interested to see how good that last one would be with a cone that tapers out to at least the diameter of the CD. The cone doesn’t even have to spin but could be held half a millimeter from the impeller by a bracket.
Just google Mike Waters and wind turbine - remember I am only demonstrating this - Mike has done a lot of work on this and looking him up will probably answer a lot of your questions
Shouldn’t the cone have been bigger than the hair dryer and the flywheel? Isn’t the air hitting the flywheel slowing it down? Counteracting forces? Using an air compressor small nozzle might work better for all experiments.
With all due respect, these designs will be greatly enhanced by Bernoulli ducting to accelerate air velocity. Especially if you add to that last design, a rounded circumferential structure, to take advantage of the Coanda effect, not on a wall, but on its own freeing standing support, cone in front. -James Stewart, Ph. D. Physical chemistry.
Actually if you have the wind pressing equally across an entire wall, the pressure will be equal on all portions, therefore defeating any and all potential for high speed wind flowing through all of your centrifugal impellers so that you could not obtain any real speed, and what little rotation you got would be negligible and essentially incidental to changes in the angular cross flow of the wind as it slipped up and around the flat face of the wall the unit(s) were mounted onto.
I am sorry normally I love your comments but you say this like it is.a fact I can't contradict. I have to ask did you check out Mike Waters like I suggested?
Hi Rob; This is John Brubaker from Ft Myers I think we spoke on the phone once. I was just looking at some old videos and remembered one about Ion power. There is a company named Ion Power Group (ionpowergroup.com). They use graphene to collect ions from the atomospere and use them to generate power. I thought you might be interested in adding this to your list of ideas you might be interested in.
I've always fancied making something like this from one of those garden wind fans... The ones that look like the four corners of a square turned in. I think one of those will drive flat as you describe.
