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Пікірлер: 282
@terryendicott29394 жыл бұрын
I would like to say that I am a fan, but I am worried that you would attach magnets and coils to me.
@Scott_C4 жыл бұрын
😄
@jeffreyrood87554 жыл бұрын
too funny!
@BoB4jjjjs4 жыл бұрын
Terry, that is so funny! lol
@Kiyarose39994 жыл бұрын
Just make sure you move very slowly to seem unviable, then you should be safe from Magnets, lol.
@ThinkingandTinkering4 жыл бұрын
only if you sit still too long lol
@pulesjet4 жыл бұрын
I manage to mangle my self every time I mess with sheet metal. Deceivingly Sharp it is. Man your a busy man. No way I could keep up with your productivity.
@ThinkingandTinkering4 жыл бұрын
lol - yes it is. lol
@stuffoflardohfortheloveof4 жыл бұрын
Brilliant series this one Rob, very interesting. Thanks for doing and showing it. Really has me thinking.....if only I could get off my lazy backside 👍
@ThinkingandTinkering4 жыл бұрын
lol - therein is the only real problem mate lol
@tasa49044 жыл бұрын
That bit on superglue...I had absolutely no idea. Learn something new everyday.
@ThinkingandTinkering4 жыл бұрын
for sure mate - cheers
@Frejjan4 жыл бұрын
Great series, really tickles the tinkering gene!
@ThinkingandTinkering4 жыл бұрын
Glad you enjoy it!
@jamest.50014 жыл бұрын
Yeah, I think if my DNA were tested, they would find it looked like a couple gears, maybe a cam and pushrods, ha-ha...
@Barbreck14 жыл бұрын
Hey Robert, it's often intrigued me that no architect has yet struck upon the idea of mounting a wheel impellor around the ouside of a round tower. The wind would penetrate the wheel, wrap around the building and exit the wheel a second time, multiplying the torque available. With a circumferal magnet/coil ring as you've described it'd generate a notable amount of power for that building.
@ThinkingandTinkering4 жыл бұрын
it probably would mate - interesting - cheers
@adaptdownunder80944 жыл бұрын
I was so excited to see this as I have been working on a very similar project where I have used the same principles but used a direct drive motor from a front load washing machine for the coil / magnet. The issues I was having was actually attaching the magnet & coil to the whirligig. Your design has given me some ideas as to how to do this now and I now can’t wait to complete my project which has been sitting in pieces in my workshop for a couple of months now. Thank you for your channel and I’ll be sure to share my results with you. 😀
@ronaldd21544 жыл бұрын
Awesome man! Plz post a vid on it (even if it doesn't work) if you ever do get to putting it together. I picked up a bicycle wheel so im looking forward to turning it into a wind turbine lol. How is the spin on the washing machine motor? Is it easily moving? I too will be on the lookout every garbage collection day for one😂
@ThinkingandTinkering4 жыл бұрын
please do mate - I would love to see
@GR-wt8qf2 жыл бұрын
Any update on your project?
@dereinzigwahreRichi Жыл бұрын
When I saw the thumbnail I thought "now he's totally snapped, he's building a Transformer!" :-D Impressive build though, great to see what one determined person can make in a workshop!
@santosvella4 жыл бұрын
Would be interesting to see this working on the roof over time and what energy you would get.
@jeffreyrood87554 жыл бұрын
Great build sir Robert! It looks like it will do very well in low wind speeds. I would buy you an anomometer if I could. It would make it more fun knowing. I'm made a neat little generator that I'll try to get a video together about tomorrow.
@ThinkingandTinkering4 жыл бұрын
I might get round to getting one myself mate - and let me know when the vid is up will you? I'd love to see
@jeffreyrood87554 жыл бұрын
@@ThinkingandTinkering also, I'm wondering if on a small setup like what you just built, making a large ring on the outside of the ventilator maybe 5' in diameter of magnets and coils. It would have to be beefed up to support the extension of the mass, but it would increase the size of the stator and coils and give more energy.
@jeffreyrood87554 жыл бұрын
You talking about the leverage yesterday.
@doctorhalliday Жыл бұрын
This is very interesting. I live on a river in Tasmania and it is super windy. I have 3 rotating ventilators on my roof and they just are going all the time. They seem super robust and aren’t likely to kill birds flying past. Harnessing the power and feeding it into a battery seems like an elegant way of adding to the renewable mix.
@stevetobias48904 жыл бұрын
That is an excellent proof of concept Rob. I have a lot of coils from an old front loader washing machine. I don't know if I can salvage the magnets because they are gunked with epoxy onto a heavy cast plate. But the coils are salvageable and I'm going to order magnets like you did and put this to use. Thanks for putting this together mate.
@anneinfurna85284 жыл бұрын
you can buy a pile of rare earth magnets online -- I got mine on Ebay -- They came out of disc drives -- super strong and really reasonable. Highly adaptable.
@ThinkingandTinkering4 жыл бұрын
I amnow on the look out for a front loader with direct drive mate!
@NorthernKitty4 жыл бұрын
I really think this is a great success!! 😊 If this could be built to average even 10 watts under load in varying wind conditions, that's 240 watts per day. Two of these could nearly match what my 100w solar panel can achieve (on average) during daylight at my latitude, and wouldn't require much more horizontal surface area. If I purchase the turbine and magnets and scavenge the rest, the cost probably works out to be about the same (though admittedly a lot more work to assemble.) However, it would be a great offset to solar in an off-grid situation, continuing to produce power even when (and especially when!) the sun goes down. My portable refrigerator consumes about 10 watts per hour on average under normal conditions. Allowing for redundancy, two of these could keep my refrigerator going indefinitely!! Even better, these are low profile wind turbines and look quite normal on top of a roof. I really like this build!! 😊😊😊
@ThinkingandTinkering4 жыл бұрын
outside of the vent I paid around UK£20 for everything else but then I did scavenge a lot and only really bought the magnets which were ferrite so dirt cheap
@NorthernKitty4 жыл бұрын
Mmmhm, here the turbines would be the biggest cost. I did a quick browse, and it looked like they go for about $40-$70 apiece.
@WayneTheSeine4 жыл бұрын
Very awesome. I missed some of the build and will have to go back and watch those. I knew this thing was going to work quite well. When you had it there on the bench ....it just started turning. Ha ha... fantastic.
@cranfordducain154 жыл бұрын
This is headed in the direction of a project which I have wanted to do for several years. Since the temperature of the atmosphere drops as you go up, how well would it work to stand up a tall tube with fan blades inside. Each of these fans would be attached to a generator. As the warm air from near the ground rises through the tube, it will turn the fans and generate some current. As a way to help heat the air at the bottom, a "skirt" could be mounted around it, up off the ground to draw air into the tube. If such a system proves to be commercially viable, it could be built fairly large and the area under a skirt could be set aside as a covered park. Just something I have wondered about.
@POKEtheBearsaid5 ай бұрын
It's definitely a novel idea using this setup for using wind energy, I get this concept and appreciate the use of it which alleviates the obvious necessity of facing it into the wind my question is can you reduce the back pressure or reduction of wind flowing into the wind turbine by adding an exhaust port(s at the bottom of the base and or the design of the plastic fan blade placed inside
@jimintaos4 жыл бұрын
In watching this I modified an idea I was thinking about and then wondered about combining what you have done with part of my own idea. Essentially my thought is to build a housing that exposes only the vanes that are being caught by the wind so that the vanes that are coming around to catch the wind are not fighting the friction of the wind as they come around.. The idea I had started with was to have two vertical paddle wheels counter rotating with duct work that directed the wind to the center where the paddle wheels would catch the wind as it picked up speed where the ducting squeezed it into a tall narrow opening.
@ThinkingandTinkering4 жыл бұрын
interesting mate - you should build it for sure
@jeanguion32234 жыл бұрын
Hey , how genuis is this guy ? These things been spinnin' on our buildings roofs for 4 decades....looks like they work fairly well...
@ThinkingandTinkering4 жыл бұрын
I was surprised how well it worked mate lol
@Kiyarose39994 жыл бұрын
Brilliant, that would trickle charge a battery, while doing the job it was originally designed for, love it!.
@ThinkingandTinkering4 жыл бұрын
Absolutely
@robertpitt84184 жыл бұрын
You put a lot of time and hard work into that job , well done rob
@ThinkingandTinkering4 жыл бұрын
cheers mate
@jonnyswalk46744 жыл бұрын
Well done again Robert - You’re always thinking 🤔 Brilliant!!!Warmest wishes from South Wales 🏴 - Jonathan 👍 😊
@ThinkingandTinkering4 жыл бұрын
Thank you! Cheers! and best wishes to you too mate
@mikeyearwood4 жыл бұрын
Always enjoy your thinking. Still would like to see the invelox trap the wind and direct it to an ducted fan with circumferential coils.
@pajohnson30414 жыл бұрын
Very good explanation, clear voice. Upload more videos.
@ThinkingandTinkering4 жыл бұрын
will do mate - cheers
@nw76964 жыл бұрын
Wow, intriguing approach! I like that you took low torque and very efficiently used it to generate lower voltage at higher amperage. 😊👍🏻
@ThinkingandTinkering4 жыл бұрын
Glad you liked it!
@johnwilson36684 жыл бұрын
Great build .enjoyed the videos . There is a way of increasing the output significantly by having a inner ring of magnets which oppose the external magnets . This would create a magnet field which would encompass the coils .The secondary inner magnets will obviously rotate with the outer magnets
@ThinkingandTinkering4 жыл бұрын
to be honest mate this is just answering the question - can it be done - I think there are quite a few improvements that could be. made
@690Lighthouse Жыл бұрын
Dual purpose, still works as a ventilator and it does look cool.
@MrTubeuser124 жыл бұрын
that's a good result, and it's exactly the design idea i mentioned in an earlier video about vertical wind turbines, good to see the principal in action. now i'll have to go ahead with my vertical turbine build, :)
@ThinkingandTinkering4 жыл бұрын
go for it mate
@glennwebster16754 жыл бұрын
Another proof of concept. Awsome build, Thanks.
@ThinkingandTinkering4 жыл бұрын
Glad you like it!
@Paul_Wheller_with_an_h4 жыл бұрын
I get a load of YT notifications from lots of channels but your latest upload is always my first to watch. By the way old microwaves can also be razor sharp underneath, had plenty of blood letting on these.
@ThinkingandTinkering4 жыл бұрын
awesome mate - and yes I have had a few cuts from them too lol
@Cooliemasteroz4 жыл бұрын
Well done Robert, you did it the right way to get the most out of it with what you had as knew you would. As for wether or not the internal axial fan improves the performance, I believe it does. Here in Sydney we got them at a time when they were advertising them with this feature and the claimed increase in performance. Unfortunately I believe that they worked too well as we live on a busy road and our house had wall vents and I added closable ceiling vents and while the cooling effect was fantastic we effectively turned our house into a vacuum cleaner which later proved to be a serious health hazard. Therefore I blanked off the internal wall and ceiling vents, got air conditioning and air purifiers. Years later we had a bearing failure and got the company out to change it and they wanted to take the axial fans out as they were now telling me that it works better without it. I personally think they might have been worried about the legal implications and might have been trying to cover themselves. They still help to cool the house fairly well just by keeping the roof space cooler than it would normally be. I had an idea. You could use the electricity generated to operate an automatic vent using temp sensors to sense when the temp at or near the ceiling gets to a set point or maybe difference from temp at the floor level and then simply open up and close accordingly. You could use the rim of a standard ceiling fan and cut out a disc to the same diameter and use a spring and solenoid attached to the disc may with a soft gasket and this combined with suction from the roof vent would pull the hottest air out from the sides unlike a standard ceiling fan which might pull out some not so hot air with it. This might actually work better than vents left open because as I said before they can work too well and apart from sucking too much pollution into your house they might actually be sucking too much warm air as well.
@ThinkingandTinkering4 жыл бұрын
cheers mate thanks for the info - I did wonder how well they would perform - interesting idea you had there too
@Cooliemasteroz4 жыл бұрын
Robert Murray-Smith I’ve been thinking about the fan that you have used and I think there is huge room for improvement. I think the fan that you have used is designed for higher speeds, the fans used on our vents look as though they are made from a circle cut out of sheet metal with the perimeter bent at 90 degrees for rigidity with cuts between the hub and the outer perimeter are very close together and bent to form long thin blades. Unfortunately there’s no point in sending a link to this manufacturers website as the no longer use them. Also just an observation for your interest I have noticed that in the early morning without wind these vents will stop but when the sun comes up in summer still without any wind they will spin as well as your one did in your video.
@Yaman-D-Chhaya3 жыл бұрын
Lovely demonstration Rob Sir loved it, much near to completing my project would love to share a video soon with you, my plan is to extend the central Axel and mount rotating disc of magnets in N S orientation with a collar that will hold the coils, Rob Sir I need help in finding a formula or equation to what gauge of copper wire would produce what voltage in one turn, so as to determine turns vs the gauge of copper wire, thanks loved the series, also liked your attitude to go on sorry to know that rim cut your finger, lovely series, Love and warm regards from India.
@russiannpcbot6408 Жыл бұрын
I believe the internal fan is intended to take advantage of the rising hot air from inside a house. It is a ventilation fan after all. You're not going to see a lot of benefit from an internal fan if you use it in a setup where it's not being used to vent something.
@MerwinARTist4 жыл бұрын
Amazing build!! Thanks for doing that! It would be additionally interesting to see what would happen if it was on the top of a chimney .. it seems like it could be done with 3 or 4 -- 55 gal open ended barrels stacked on top of each other and the outside could be painted black .. a hole cut in the bottom so a draft would happen and set it in the sun. It may not turn any faster than when installed on a roof .. but then I've never seen a "chimney" application.
@ThinkingandTinkering4 жыл бұрын
we don't have a lot of rotating vents in the UK mate we are more concerned with damp than heat - so I haven't seen that many myself
@MerwinARTist4 жыл бұрын
@@ThinkingandTinkering Interesting! :-)
@rwfoxtrot3 жыл бұрын
Greetings from Brisbane Australia! I came across this build video whilst researching to discover if exactly this application has merit for a trickle charge system to supplement a solar array. As opposed to the UK, these types of roof vents are everywhere in Australia especially on corrugated iron rooftops. The usual summer temperatures of 35+ degrees Celsius means that the roof cavity heats up incredibly and even on completely still days these vents fairly fly around! I’ve often wondered if there was a way to harness this energy especially as the vents continue to spin after sunset and the ambient air temperature drops more rapidly than the air trapped in the roof cavity maintains the temperature/pressure gradient. The same effect is evident in our winters as well but not as pronounced. I haven’t heard about the internal fan trick until now. Do you have a reference for the paper you mentioned. Great channel! Thanks. Cheers, RF
@danny361204 жыл бұрын
if you look out for an old direct drive washing machine motor, they are designed exactly like that, i got myself one on ebay for £50 which is peanuts for what it is. the ones from the larger 10kg washing machines are best built. think about it from the point of view of spinning wet clothes, then add to it the unbalanced load and vibrations during a wash cycle... have fun! thanks for sharing as always!
@ThinkingandTinkering4 жыл бұрын
nice tip mate - thanks a million I will look out for one
@DesignedbyWill20844 жыл бұрын
Really wish I had done this years ago. Using a bicycle wheel for the rotor but didn't have a good source for so many magnets.
@rommelfcc Жыл бұрын
Watch the bottom of the fan/vent if it looks like going backwards 😆 Could rivit extensions to the fins and give it more torc 🚀
@stupidscruff57942 жыл бұрын
Excellent, very helpful thank you
@chefboyrdee13 жыл бұрын
Keep going mate. You got a great idea going for you
@darrishawks60333 жыл бұрын
I've seen a thing people call "solar chimneys" where they put these ventilators on top of a tall, black tube so that the air in the tube gets hot in the sun and rises to suck the air out of the room under the chimney.
@VojvodinaNet4 жыл бұрын
I always think "I am not going to watch this one, he is just endlessly experimenting with different things, we need to focus on something"...and then, when I finally watch it, I learn extremely important things that he drops in a laconic manner, just suggesting 'good ideas'. Those 'good ideas' are actually super-duper important insights into how to use energy, how to control it. You DO NOT find these anywhere else, so well described. The golden rule of alchemy, they say, is: 'it will never be given to you as a complete solution, you can only find good description of principles of how to get there'.
@ThinkingandTinkering4 жыл бұрын
lol - I am afraid that is something I agree with mate - as an aside - I do focus on something - I just don't show much of that on youtube lol
@gameoverwehaveeverypixelco12584 жыл бұрын
Paint it black and connect it to a solar collector like soda cans to get hot air rising up and spinning it more quickly.
@ThinkingandTinkering4 жыл бұрын
nice one mate - cheers
@PeterMilanovski4 жыл бұрын
I really hope that you take it out again at a later date when the wind pick's up a bit more and get some better results! I think that this should be used in conjunction with solar panels! Sometimes you get just the panels, sometimes just the wind but other times you get both! All that would be left now is to make something to use rain water to harvest energy and you should be covered! Unless it's a dry windless night LoL... But as soon as things change, it's all on for young and old! Incidentally, I personally would wire it for a higher voltage than that of the batteries so that I can use an MPPT charge controller to efficiently convert the high voltage low current to low voltage and high current, the reason for this is that you would have noticed that when you draw current, it puts a load on a generator and it can't spin as freely as it should, so an MPPT charge controller will be doing all the heavy lifting! Well that's how I see it anyway! I have only just received my hydroelectric Generator's (5 of them from eBay) and I'm itching to do something with them buy the lockdown is keeping me from the local hardware store! But it's all good 👍 can't do anything if I'm dead so it's unfortunate but just as well!
@ThinkingandTinkering4 жыл бұрын
nice thoughts mate and thanks for sharing - tbh I haven't really thought that much about how to actually use the power - but we will get there
@PeterMilanovski4 жыл бұрын
@@ThinkingandTinkering it would be interesting to see what each of the different types of Generator's can produce over a longer period of time but for that, your going to need a battery to store what you have harvested and independent meters for each device to see what they can actually achieve over the long run and a load or two that you can switch in or out depending on the state of charge on the battery to keep it always in it's charging region so that you are always getting the maximum out of each device! You can start each video with a look at the meters to check performance, I would definitely want to watch that! Another meter that measures the total amount of electricity harvested... I think that the results would be very interesting, some of the devices that I have seen you build can be placed in places that are normally not used like a wall! I really can't see something new to the market that would force you to replace it with. A solar panel for example, many people have 'em but it's an industry that has a lot of attention so you run the risk of having to replace the one that you have for a better one possibly a year later! But that pipe contraption with no moving parts mounted on a wall! Nothing is going to knock it off it's perch so you can pretty much set it and forget it! Sure they can't compete with solar or wind or hydro for output but they are not in the way and every little bit helps! Say! I just had an idea! LoL this always happens to me! I would be talking about something and a picture just Pop's up in my head! That pipe contraption with no moving parts, what if you connected one end to a mechanical lever? That way you can amplify it's movements to get more swing through a coil! But then it has moving parts! Who knows, maybe it might possibly produce more if you used a mechanical amplifier? Better swing = longer stroke = higher voltage... Hmmm interesting.. Anyway, that's just some food for thought. Thanks for your reply, it's nice to get that every once in a while, it just makes the world feel a little smaller..
@rodslogic43504 жыл бұрын
Great project thanks for sharing all your ideas
@ThinkingandTinkering4 жыл бұрын
Glad you like them!
@Yaman-D-Chhaya3 жыл бұрын
Comment before watching the video, thanks a ton Rob Sir for using this idea, I had shared this with you in your vertical axis wind generator which you did from a squirrel cage fan, wow m working on this
@MarkSeve4 жыл бұрын
Awesome as usual Robert. Love the series. Fan for life.
@ThinkingandTinkering4 жыл бұрын
lol - awesome mate - cheers!
@goldcountryruss70354 жыл бұрын
This is exactly the concept suggested for the water powered Archimedes screw generator except this is larger diameter and uses wind.
@ThinkingandTinkering4 жыл бұрын
yes it is
@colouroboros99934 жыл бұрын
very inspiring experiment!
@ThinkingandTinkering4 жыл бұрын
Thank you! Cheers!
@colleenforrest79364 жыл бұрын
My guess is that one of the reasons our venerable ancestors chose the central axis over the rim was the cost of materials. Anyway you could do something with your ink instead of the magnets or copper wire? Maybe spin two cheap materials with a good triboelectric gap then fit some graphene coated wires to collect the electrons? Would probably need more wind to overcome the friction, but could be interesting
@ThinkingandTinkering4 жыл бұрын
yeah a lot comes down to cost -I am guessing to make a production version of this would be expensive - but as I scavenged most of the bits and used ferrite magnets then outside of the ventilator I spent about UK£20 - so cheap for me - but I would think not so cheap if you used neo magnets and new all the way
@anneinfurna85284 жыл бұрын
It Would be neat to have a Geodesic Dome Home built with the outer walls to spin and generate enough power for the home too. Could be quite risky diving thru the doorway to get in and out just when the two portals align !!! Sure would be a deterrant for burglars..... Ha!
@ThinkingandTinkering4 жыл бұрын
lol - it also might make whoever lived there dizzy just watching the walls spin by lol
@GoVertical174 жыл бұрын
Back EMF is a killer, adding a PWM or MPPT controller will help. Cheers
@GoVertical174 жыл бұрын
Adding large stationary scoops to direct the wind into the VAWT blades will also help. :)
@ThinkingandTinkering4 жыл бұрын
cheers mate
@TheWingnut584 жыл бұрын
Cyanoacrylate, or "super glue", was first discovered in the early 1940's but was abandoned because it wasn't suitable for the current project. It was then rediscovered around 1950 by a researcher at Eastman Kodak who brought it to market under the trade name “Eastman #910”, but later re-named it “Super Glue”.... Super Glue actually was used in Vietnam to help close up wounds on soldiers while they were being transported to hospitals to then receive stitches. A form of cyanoacrylate is often used today in place of, or in conjunction with, traditional sutures.
@ThinkingandTinkering4 жыл бұрын
nice info mate - thanks for taking the time to post it
@gnomishengineer53004 жыл бұрын
Have you done, or would you consider doing, a video on how to wire these various low power generators for a "plug and play" option? For example if a building had multiple of these on the roof, but only one battery, is there a way to wire each one that it would plug into a central line, also allowing for additional generators to be added later? Love the channel and thanks.
@ThinkingandTinkering4 жыл бұрын
I haven't done that mate - but it is a really good idea - I'll do one - cheers
@brothernobody17754 жыл бұрын
I love the reuse angle. definitely seeing so much e waste out this way in Va
@ThinkingandTinkering4 жыл бұрын
I do like repurposing stuff - to my mind it is much better than throwing it away
@TimeSurfer206 Жыл бұрын
Robert, there is one question I have: it's about the ratio of magnets to coils. Is it even important? Or is NOT having a N-S on one coil while the next has a S-N going to cause cancellation? Better yet, how about recommending a good basic textbook? Also, this thigs spins from updrafts, too? So, one could elevate it significantly on a duct painted flat black, and take advantage of a solar induced thermal draft.
@jeffreywang65474 жыл бұрын
This is truly AWESOME!!
@jtcustomknives4 жыл бұрын
Watching this made me think you could use heat energy and wind with the same generator. What if you stuck that on top of a say a 20ft tube that was painted black. Have the base set above the level of the ground. As the pipe is heated by the sun it will warm the air inside creating an upward draft. I would think this upward draft would spin this generator even without any wind. If these are used to let the wind spin it which creates a draft then if you create a draft without wind then it will spin. If Wind=Rpm and RPM=Draft then Available energy = RPM-draft. But when heat = draft and draft = rpm you get available energy = rpm + rpm. If Wind = 1 and draft = 1 then rpm would be 2 so to speak. My thinking is energy from the wind is being used to create the draft so you don’t have all the energy available to use for generating power. But if you create the draft from rising hot air you convert that wasted energy into usable energy. Just an idea but harnessing two renewable energy sources with one device would be great.
@stanislavbandur73553 жыл бұрын
let say, let say, let say... Let say you have a house with a roof (everyone has some). If that is sloppy roof, than it can has living space under roof or only empty space, but in both cases it will be good to ventilate gap between roofing and insulation. Especially in summer, such a ventilation can lower significantly energy needs for airconditioning (cooling). If one slope is oriented towards to south, then space under the shingles can reach up to 80°C (especially if roofing is made from steel plate). During the winter it will be better to not vent it to lower heating bills. Such gap can be used instead of pipe as heat collector for creating push from hot air rising. (If there are shingles right on plywood, then it is not good in terms of no gap and low thermal conductivity). Question is how to balance energy gain and ventilation properties. Even the best wind turbine has efficiency about 56%, which means that 44% of flowing air energy is not turned into rotation (everything without wind). If there is a roof 10by6m it can get 60*1330W from the Sun (depends on latitude), which is quite interesting79.8kWatts of energy. While it is not painted by unobtanium paint, it can turn about 40kW into to heat. Cowering it by thermocouples will be crazy idea to gain 2kW in direct electricity and 38kW in heat (which needs to be vented out to prevent heating living space). then if we are talking about those 40kW heating ability, then if only 10% penetrates thermal insulation, then venting will save 4kW of cooling needs (about 1-1.3kW in electricity). The second question is how you can utilize those 40kWatts (1%=400W, 5%=2kW, ideal theoretical max 56%=22.4kW)
@nil52214 жыл бұрын
Interesting perusal on the lever/circumference question. BUT, when the coils (generator) are under load, that will act as a brake. That brake, slowing the rotation, is far more effective, being at the circumference. Thinking about it from that angle, the rotor would have more leverage to turn the generator if it was mounted at the shaft...but that would mean much bigger magnets and coils, moving slowly, for the same output. Or gearing things back up again to increase the speed meaning loss of efficiency in the gears/pulleys. Theoretically it seems like swings and roundabouts! Work done is the same whether a small force is moved a greater distance quickly or a greater force over a smaller distance slowly. I'm only discussing it, you got me thinking :-) your design wins hands down for simplicity, ease of construction, and probably efficiency too. Sorry for the long comment
@ThinkingandTinkering4 жыл бұрын
I am good with long comments mate - they make me think too - like all things this would need to be a balanced approach - if it were me I would not connect a variable load directly to the generator in whatever circumstances - I am still pondering this which is why I haven't done a video on it yet - but in my mind a reservoir between generation and consumption is needed - like a capacitor bank and variable loads are only drawn from the bank - it would seem to me then load on the generator would be around a constant and can be planned for - but like I say I am still pondering this one
@nil52214 жыл бұрын
@@ThinkingandTinkering Agreed, I would connect a battery to be charged, capacitor to handle surges if necessary, and something like the XL4015 DC:DC buck convertor which can be set to limit voltage and current, to whatever will not stall the rotor in your area's average breezes? They are dirt cheap on eBay and work excellently, I've used them in several projects
@mohdsalem89184 жыл бұрын
Fan blades area is quite large which will limits air flow, any ways it is a good experiment and results are fair, well done
@ThinkingandTinkering4 жыл бұрын
my thoughts exactly mate
@margaretjohnson4413 Жыл бұрын
This looks like a possible heat / wind power generator that could work on a chimney. The idea would be to use the updraft from a Wood burner fire to generate torque but what would the fire risk be? I could also see it working as a generator ventilator for animal housing where farm stock are wintered inside. I couldn't see the amount generated in your demonstration and to be honest I don't really understand the intricacies of Amps Watts and Volts, just that we have a 230-40 system and what we use consumes Watts or Kilowatts.
@PrayerWarrior8814 жыл бұрын
Awesome design!
@lonewarrior66334 жыл бұрын
The top of the thing looks like a Martian rover wheel. It looks awesome! 5:49 !!
@ThinkingandTinkering4 жыл бұрын
lol - yes it does bit lol
@curtisnixon53134 жыл бұрын
Another great Doctor Who prop!
@ThinkingandTinkering4 жыл бұрын
lol - for sure
@kentpersson62784 жыл бұрын
The fanblade works in the same direction if You turn it up side down!
@ThinkingandTinkering4 жыл бұрын
cheers mate
@sadaavedan4 жыл бұрын
The plate idea for holding the magnets on one plate and the coils on a second plate separated by 1 mm or so is worth pursuing for two reasons. 1. It is easier to get the plate balanced than the rim style of stator/rotor; 2. You can mount really large coils on the second plate without compromising the distance from the center/speed and thus get more watts. The idea is to get to a usable output of at least 100 watts. The target is to ultimately get to between 300 & 400 watts, using one or more exhaust turbines, which is considered the average instantaneous consumption in a house.
@ThinkingandTinkering4 жыл бұрын
cheers mate - I would vent the plate though so air can flow
@sevenacregreen4 жыл бұрын
The disk idea has been used with diy wind generators. The plates were initially car break disks and a front stub axle assembly often from a volvo, the wheel bearing ised for the blades and the stearing bearing for the rotationto the wind. Pitch of coils and magnets needs to be right for the phases.
@toml.8210 Жыл бұрын
You should be able rto add a planetary gear system to the edge of the fan, to gain torque.
@andytrewin4 жыл бұрын
Well done Robert, an excellent set of videos. What about hydrogen fuel cell generation next? KR AndyT.
@ThinkingandTinkering4 жыл бұрын
ok mate - I do have a few others but I will get to it - cheers
@riccardogarzelli Жыл бұрын
N/S/N/S orientation has a problem: the magnetic flux is in the poles axis direction. However there's an arrangement that pushes more flux one way and not the opposite... that's probably better
@station2404 жыл бұрын
I should try this on one of my roof ventilators. On a hot and windy day, seen them spin so fast it's just a blur. Think this could be put together in a day or so, so existing vents could be modified ?
@tenij0004 жыл бұрын
if put the magnets on the outside of the spinnig top part whit a ring make it stronger always try to mount the motor from the top then use a axel from motor down then you can have fixed axel
@ThinkingandTinkering4 жыл бұрын
there is no always mate - you should try to adapt to what you have or what is appropriate to the situation - always is a set of blinkers folks often wear - you are right it is a good idea to mount a motor as you suggest - but always - I don't know about that
@tenij0004 жыл бұрын
@@ThinkingandTinkering inside block air flow you told us :)
@kdenyer12 жыл бұрын
If you place this on a longish tube on hot day would there be any up draft. If so do you think it would generate 🤔
@jjime11754 жыл бұрын
Should you not test on the roof where the wind is more prevalent compared to ground level where building will divert or block wind?
@seanchadwick61824 жыл бұрын
This may be a silly suggestion but what if you used your contra rotating gears to spin the coils in the opposite direction at an equal speed? Great build by the way.
@ThinkingandTinkering4 жыл бұрын
I would think you could mate - to be honest I was asked to see if it was a possible thing to do and I think I answered that question and to do that I basically did the simplest thing possible - I am sure there are a million improvements that cane made
@dahmanus20023 жыл бұрын
you didn't le much room for wind to escape from this device when you put it on a wall, this will make an important air friction to stop the spinning, i really like your videos.
@islandsedition4 жыл бұрын
I wonder if a combination of both putting a motor at the centre as well as at the edges could provide a benefit. (Excuse my very limited understanding but...) Could one use the centre motor to generate a slight current through coils on the circumference, which would then increase the load and in turn increase the power generated? That may slow the ease of turn as it goes faster, but you could add a heavier material on the spinning perimeter which would then act as a flywheel. I hope that makes sense. Thanks again for yet another excellent vid.
@ThinkingandTinkering4 жыл бұрын
I don't know mate - it seems to me that's a bit like an axial flux design - but probably worth a try just to see
@rickymcguire94934 жыл бұрын
Will you try this setup on an attic mount scenario to take advantage of the warm air draft?
@ThinkingandTinkering4 жыл бұрын
probably not mate - it would mean knocking a hole in my roof
@rickymcguire94934 жыл бұрын
I was thinking of maybe a pipe of sorts and push just enough air to simulate the normal flow. Knocking holes in roofs can be upsetting.😁
@wesleystuart1100 Жыл бұрын
I was wondering if the pot plant heater would cause it to turn?
@emil.honganmaki54612 жыл бұрын
The circumferential torque is exactly the same whether it comes from the center or directly
@garethb57294 жыл бұрын
I have found any generator I make eventually fails on the bearings no mater how exact I try to make it. (Granted the more exact it is made the longer it lasts.) I figure this is due to gyroscopic precision. Shaking bearings loose, wearing shafts, etc. To combat this I use 2 counter rotating disks. Much like a wimshurst design. As long as the disks rotate at the same speed the precision is cancelled out. By doing this, 'thrown together prototypes' are as efficient as 'my precision' builds.
@ThinkingandTinkering4 жыл бұрын
nice tip mate - cheers
@garethb57294 жыл бұрын
@@ThinkingandTinkering God bless you Robert. Your replies are gratefully received. Thank you. If you do try this at any point be aware. Mounting magnets around the peripheral edge of each disk interact with each other making it as fluent as lumpy mash potatoes. It also adds horrendous vibration too each disk. To combat this I have resorted to halbach arrays. The top disk field is up and the bottom disk field is down. As you know halbach arrays have almost a none existent field on their weak side. This way they are fluent.
@1411goose4 жыл бұрын
FANtastic video
@ThinkingandTinkering4 жыл бұрын
cheers mate
@donlee88883 жыл бұрын
it was sitting on a flat surface, is that blocking the air flow ?
@anneinfurna85284 жыл бұрын
Do the coils have a iron core in them? or are the bare coils with out any cores? One thing i know about Generators is when they have a spinning coil in front of a magnet, generally the coils have either a cast iron core, which helps in the attraction of the magnet to them, and I think it helps the generation of the spark . This was ascertained from studying the old Quack medical kits of the 1850's. Would be curious about that.
@ThinkingandTinkering4 жыл бұрын
you might want to watch the video I did on making the coils
@martynjones9734 жыл бұрын
Thank you a lot of good research well done and appreciated 👍
@jt16omes3 жыл бұрын
could this be partially 3d printed and maybe use plastic foil for large areas
@Enngel04 жыл бұрын
High torque, low speed... Sounds like the Japanese fountain shishi odoshi might be a good candidate for a later project? Also, did the fan blade made any improvement? In what direction would you recommend placing it, if at all?
@ThinkingandTinkering4 жыл бұрын
I didn't really see much of a difference mate
@totherarf4 жыл бұрын
You have basically got an Axial flux generator but twisted at right angles (and moved to the edge)!
@ThinkingandTinkering4 жыл бұрын
lol - for sure mate - I am sorry I laughed but it is a bit akin to saying 'an axial flux generator is basically just a generator flatted out' what you are saying is true but a little tautological - cheers
@totherarf4 жыл бұрын
You are right, but a device can be two different things at the same time! A transformer can both step up or step down, a motor can be a generator ... it is all in the perspective!
@lopsumtathro4 жыл бұрын
are the magnets NSNSNS? if so Did you know the gap between the magnets is important to gain full potential, and is determined by the field width. I forget where i saw this though, some wind turbine rotor stator diy build .
@ThinkingandTinkering4 жыл бұрын
they are NSNS and thanks for the add
@ilingwang11683 жыл бұрын
I like this. It would be great to supplement solar.
@eddiezubrzycki91112 жыл бұрын
My family has a motel with like 20 of those vents and it is windy for 4 months out of the year for March till June is there a website where I can purchase and retro fit install ??
@jrmoore195314 жыл бұрын
So, if money were no object and I had an 18-inch ventilator, what algorithm should I use to calculate the optimal distance between stator coils and rotor magnets (1.26 inch grade 40 Neodymium Screw-on Disks)? Also, what would be the best gauge and length of wire for each coil?
@ThinkingandTinkering4 жыл бұрын
I dunno
@edwardkie3804 жыл бұрын
Hi Robert, from Phoenix AZ USA... Question: I like the idea of these roof vent devices as a generator ... I'm wondering if several brushless motors with rubber wheels making contact with the rotating fin sections, with the motors being used as generators around the circumference of the base would work???? Those motors have very strong magnets in them and if you had quite a few of them around the support tube all being driven and wired correctly would generate enough current ??!!! Thanks Ed
@ThinkingandTinkering4 жыл бұрын
I don't know mate but I do like the idea - fancy trying it?
@flytrapjohn4 жыл бұрын
You are right, Yet another use for superglue. Thank you, great video. 👍 Is the Internal fan meant to move the air down once it's been through?
@ThinkingandTinkering4 жыл бұрын
a marvellous thing mate lol and yes I think that's the idea
@vanrensburgsgesicht40483 жыл бұрын
I would think the fan creates a vortex (instead of chaotic air movement) so that the air inside spins with the ventilator and runs with less internal friction.
@ceylontea58772 жыл бұрын
You don't think attaching a alternator to the shaft of that wouldn't generate?
@jaredkarpinski34604 жыл бұрын
can you make your volt and amp readings easier to see on your videos?
@ThinkingandTinkering4 жыл бұрын
I can try
@FollowPhotiniByDesign4 жыл бұрын
Old ceiling fan motors are great for generating electricity...
@ThinkingandTinkering4 жыл бұрын
for sure - cheers
@pattayaguideorg4 жыл бұрын
The optimum voltage for splitting hydrogen by electrolysis is 2-3 volts, maybe a application for this ventilation generator.
@ThinkingandTinkering4 жыл бұрын
could be
@jerryvolland25434 жыл бұрын
If it had vertical slats around the base, additional wind would blow in, from any angle.
@ThinkingandTinkering4 жыл бұрын
it would mate - but it then wouldn't really answer the question I was asked
@quintonwilson85654 жыл бұрын
2:45 I put something like propolis on the cut, then super glue it.
@ThinkingandTinkering4 жыл бұрын
tcp wash for me lol
@kieron823 жыл бұрын
Could I in theory just attach a top load washing machine motor (from a fisher and paykel smart drive washing machine) to this for power? they are already used for wind turbines and hydro power generation
@douglaschell11324 жыл бұрын
I would like you to do more on this windmill in the wind test over a mouth time. with a battay Just do it
@ThinkingandTinkering4 жыл бұрын
or you could
@Buzzhumma4 жыл бұрын
I wonder if a wimhurst generator to be a useful adaption but just one plane spinning instead of counter rotation?
@ThinkingandTinkering4 жыл бұрын
that's like a Toepler or Holtz Machine isn't it mate?