You also can get a double channel hall sensor with output MOSFETs from a fan. It drives the coils depending on the magnet position. Can be used in different electrical toys and DIY automation.
This would be cool mass manufactured as little modules that you just have to clip together like legos. Perhaps into grid frames that handle all the wiring. If one breaks you just pop them out and pop a new one in. Perhaps putting a tiny LED on them to see if they still produce power. Because otherwise servicing 100x that area to get ~300W would be too costly.
Looking forward to the wind wall show down. I love these videos! I can think of two further benefits of these wind walls you likely thought of but didn't mention, they don't generate the noise some people find very annoying, and both deigns seem to be bird friendly. Best wishes.
Ohh...mannn... I definitely would make sure they all stay well lubricated. Of course you did hit them with some oil when re-assembling them. Over all it's a great learning project. If you replaced the stock circular magnets with some round n35's,(Alli Express) this may be a wall, well worth watching. Nice job... uhmm...maybe a shroud that would collect a dimensionally larger plane of wind and funnel it down against the wall.
I enjoy watching your Fan wall Project, might I suggest incorporating it Into a chain link fence. In the US, we have miles of chain link fence in all the neighborhoods.
again I am guessing a shroud like you were talking about the difficulty in making all of them for each fan, would infact be very easy to make one that just fits along the outter edges of your wind wall, would work as well as a bunch of small ones around each fan, and take far less energy to make one that is just maybe a beveled angle of flat panel sticking up off the wall in the direction the incoming air is coming from for the wall :)
Hi, Rob. Great stuff, I'd never heard the explanation behind orifice plates before. Would your design using it be improved by adding squat pyramids to the front face in the center of each quad of fans, with the edges aligned to the gaps between the fans and the faces at 45 degrees? In my head it would seem to start the airflow towards one of the fans sooner, but my head is quite often wrong.
With the VAWT wind-wall, Would it make a difference if alternate columns were contra-rotating? That way the 'rounded' opposite face of each adjacent rotor would act as a funnel for the 'cupped' part of the pair. Just an idea... 🤔
As david.lhowser points out, would ducting further increase the air speed to the pc fans. If so, if you put the VAWT wall behind (the now ducted HAWT wind wall) would there be sufficient energy left to drive that as well, or would one interfere with the efficiency of the other?
I know building the tapered inverted cones has been poo pooed but here is another method i have conjured in my noggon. Use 6x6 wire “hog panel” farming fence. 48” by 120” welded steel wire panels for $26.00 each here local. Then lay a thin sheet of ABS plastic on top. Heat the ABS to required temp using sunlight and help from a heat gun to allow the ABS to droop inside the 6x6 squares. Maybe coxed with a small form of sorts? Allow to cool and dull holes for your fans. Pooof! Tapered wind catching guide for cheap and it’s water proof.
Correct me if I'm wrong: using the figures posted at 15:03, of .006 watts output for one wind turbine at the stated wind speed of 2.4 m/s, so 0.006 watts X 90 = 0.54 watts total output
It would be great fun, if a F1 Team would let you use their wind tunnel. I wonder if you could get a second row of fans to benefit from the first board of fans, with air directed intentionally. Brilliant project.
I'm thinking of cheap ( or free ) and easy nose cones for the fans, eg discarded Kinder egg capsules. Are the Savonius columns contra-rotating? as that should help with a less turbulent airflow.
At the very least I would have used a 120mm PC fan. I have to wonder if a 12vdc automotive fan would be a better idea? They are designed for higher amperage after all.
I know this is old now but I’d be really curious to know what model rectifier you used that has a low enough voltage drop to work with the 3 volts 0.100ma these produce?
On the legs with one wire , what is it , that you solder on to them ? Also would you know which if your videos shows you making a PC fan in to a gen ? I did search making a PC fan in to a gen but only showed 009 The Folding Wind Turbine
Robert, 3D printing with smooth PETG plastic ducts that transition from a square opening to a round opening seems would be a magnifier of surface air pressure captured, and efficiently redirect to the PC Fans props to then strike those props at both a higher speed, and best angle of attack to transfer more mechanical energy potential to the PC Fans resulting in rotating them faster. Removable square nested ducts locked together on four of the square duct's sides that then are pressed tightly into the PC fan's board's flat surface round opening to hold the ducts tightly locked in place seems plausible to test the naked board against the board when fitted with the plethora of the square to round transitioning ducts suggested. When tightly populating the board face with ducts for each PC Fan the existing wind facing air pressure zone would be retained, BUT : ) moved outward from the boards previously naked surface to the area of the low resistance presented edges of the square nested ducts, to then have air motion guided to the PC Fans props. Resulting in more of the approchung air, at high pressure, and at a higher speed passing over the PC Fan props. The more efficiently directed air motion onto the PC fans prop blades at volume while still retaining the wall's forward facing square area positive pressure zone explained so eloquently here seems a wind force magnifier. Conversely, a larger forward facing round opening cone simply pressed into the PC Fans opening would not be much of a wind force multiplier as a wind pressure would leak around the outer round duct surface edges of round ducts onto then guided across the board face to the board edges. Thank you as always for the videos. I hope that Luke is doing well adjusting to University life.
Rather than 3d printing could you just but some cheap plastic powder funnels, cut them to suit. Might be a quicker way of prototyping/proof of concept before doing something more elegant?
@jackdaw1328 The desire is to collect, and direct all, not just some of the collected air pressure to be guided to the fan props at the best angle of attack with the most robust energy impact. The easier to make round funnel allows the air pressure zone to be leaked around the funnels outer circumference down onto the board's surface wasting wind mechanical potential energy in the form of decreased atmospheric pressure in inside the round funnel, and then the lost wind energy moves around the wind wall's boards four edges, and is lost there doing no mechanical work.That lost energy is best captured by square transitioning to round tight fit nested funnel edges to improve increase fan speed, and electric generation performance. Imagine how much air would be directed around a traveling I.C.E. vehicle front face bumper with only a percentage of air going through the front radiator grill. Suggested here is locked together square to round transitioning funnels so that the wind wall's air pressure zone stays located at the many square funnel wide throat opening entrance point, thus pressurizing the funnel's air volume inside the funnel the most, then moving the captured positive pressure air across the fan's propellers at an angle of attack by directing air with an angled vane to apply the most air movement mechanical energy to the curved fan propellers angled surface at the best angle. Air passing at angle too then go through the fan after energy is distributed onto the propellers surface at angle as to generate more efficiently the electricity by spinning the fans at a higher RPM in the above atmospheric positive pressurized air environment caught and directed by 3D printed nested square transitioning to round funnels with internal vanes as opposed to the lower cost, and easier to make smooth wall round funnels. Basically, the round funnel do not collect, and hold as much pressure zone as the air moves past the round funnel's loosely spaced arrangement on a square board's face, and lets outside leaking air down to the board surface, then off the board's edge creating a passing pressure zone outside the round funnels. Even worse is the air zone is blocked from entering the fan by the outer surface of the round funnel. Also no vanes smooth bore funnels do not direct the air in motion at the best angle to rotate the fans faster. Lost is applying that angled, and positive air pressure onto the fan's propellers at the most efficient angle of attack. Hope that the explanation, and example of a vehicle's front nose moving through the air creating a pressure zone forward of the vehicle's bumper helps. Maybe research air fluid dynamics of race cars to know more about forward facing air pressure zones, and how to manage the air pressure zone by air foils/ vanes. The square to round transitioning funnels inner surface with vanes acting as air foils in this case, offering a path forward by directing 100% of the air movement energy along the preferred path at higher atmospheric pressure to exert onto the fan's propellers, and also at the best angle of attack to transmite the most mechanical forces found within the air movement onto the fan's propellers, which is the intent, causing higher fan speed rotation. Cheers.
@jackdaw1328 The desire is to collect, and direct all, not just some of the collected air pressure to be guided to the fan props at the best angle of attack with the most robust energy impact. The easier to make round funnel allows the air pressure zone to be leaked around the funnels outer circumference down onto the board's surface wasting wind mechanical potential energy in the form of decreased atmospheric pressure inside the round funnel, and then the lost wind energy moves around the wind wall's boards four edges, and is lost there doing no mechanical work.That lost energy is best captured by square transitioning to round tight fit nested funnel edges to improve increase fan speed, and electric generation performance. Imagine how much air would be directed around a traveling I.C.E. vehicle front face bumper with only a percentage of air going through the front radiator grill. Suggested here is locked together square to round transitioning funnels so that the wind wall's air pressure zone stays located at the many square funnel wide throat opening entrance point, thus pressurizing the funnel's air volume inside the funnel the most, then moving the captured positive pressure air across the fan's propellers at an angle of attack by directing air with an angled vane to apply the most air movement mechanical energy to the curved fan propellers angled surface at the best angle. Air passing at angle too then go through the fan after energy is distributed onto the propellers surface at angle as to generate more efficiently the electricity by spinning the fans at a higher RPM in the above atmospheric positive pressurized air environment caught and directed by 3D printed nested square transitioning to round funnels with internal vanes as opposed to the lower cost, and easier to make smooth wall round funnels. Basically, the round funnel do not collect, and hold as much pressure zone as the air moves past the round funnel's loosely spaced arrangement on a square board's face, and lets outside leaking air down to the board surface, then off the board's edge creating a passing pressure zone outside the round funnels. Even worse is the air zone is blocked from entering the fan by the outer surface of the round funnel. Also no vanes smooth bore funnels do not direct the air in motion at the best angle to rotate the fans faster. Lost is applying that angled, and positive air pressure onto the fan's propellers at the most efficient angle of attack. Hope that the explanation, and example of a vehicle's front nose moving through the air creating a pressure zone forward of the vehicle's bumper helps. Maybe research air fluid dynamics of race cars to know more about forward facing air pressure zones, and how to manage the air pressure zone by air foils/ vanes. The square to round transitioning funnels inner surface with vanes acting as air foils in this case, offering a path forward by directing 100% of the air movement energy along the preferred path at higher atmospheric pressure to exert onto the fan's propellers, and also at the best angle of attack to transmite the most mechanical forces found within the air movement onto the fan's propellers, which is the intent, causing higher fan speed rotation. Cheers.
This is all a complete waste of time as it produces sooo little energy that the time spent making isn't worth it. There just isnt enough copper and magnet involved. If this was for educational purposes you could have done that with just one and outlined the data far better.
You also can get a double channel hall sensor with output MOSFETs from a fan. It drives the coils depending on the magnet position. Can be used in different electrical toys and DIY automation.
This would be cool mass manufactured as little modules that you just have to clip together like legos. Perhaps into grid frames that handle all the wiring. If one breaks you just pop them out and pop a new one in. Perhaps putting a tiny LED on them to see if they still produce power. Because otherwise servicing 100x that area to get ~300W would be too costly.
Looking forward to the wind wall show down. I love these videos! I can think of two further benefits of these wind walls you likely thought of but didn't mention, they don't generate the noise some people find very annoying, and both deigns seem to be bird friendly. Best wishes.
Ohh...mannn...
I definitely would make sure they all stay well lubricated.
Of course you did hit them with some oil when re-assembling them.
Over all it's a great learning project.
If you replaced the stock circular magnets with some round n35's,(Alli Express)
this may be a wall, well worth watching.
Nice job...
uhmm...maybe a shroud that would collect a dimensionally larger plane of wind and funnel it down against the wall.
Wall off!!! Can't wait, absolutely going to build which ever one wins, I live on a cliff in a windy area, we shall see!! :) Thanks Rob! 🖖
wow what a perfect location for testing energy storage devices. would love to see a giant cucu clock powered by bags of rocks hung on a chain
That is a great idea, Robert... simple, cheap, and practical... I like it....thanks.😊
I know you've got loads to do... but we're still waiting on that up and coming video.😊
Excellent video Rob well done! Look forward to seeing the comparison video!
Wow! Imagine having an 80cm PC fan!! A 120cm would be really cool... (Yes, I know he meant millimetres.)
Lol just seen your thumb nail and thought for an instant that you were playing a game of connect 4 lol
I’m currently planning a savonius type like yours, repurposing old filament spools. Thanks for your videos and all your files on thingiverse!
I enjoy watching your Fan wall Project, might I suggest incorporating it Into a chain link fence. In the US, we have miles of chain link fence in all the neighborhoods.
Lol those would be scrapped and stolen in a matter of days
Great video, looking forward to the wall-off
again I am guessing a shroud like you were talking about the difficulty in making all of them for each fan, would infact be very easy to make one that just fits along the outter edges of your wind wall, would work as well as a bunch of small ones around each fan, and take far less energy to make one that is just maybe a beveled angle of flat panel sticking up off the wall in the direction the incoming air is coming from for the wall :)
This channel taught me something today, thank you.
Brilliant. I want this fan setup made into doors for my house
Nice work Robert. 👍
Hi, Rob. Great stuff, I'd never heard the explanation behind orifice plates before. Would your design using it be improved by adding squat pyramids to the front face in the center of each quad of fans, with the edges aligned to the gaps between the fans and the faces at 45 degrees? In my head it would seem to start the airflow towards one of the fans sooner, but my head is quite often wrong.
hey to increase the air volume put directionals on the whole wall like 4 planks
With the VAWT wind-wall, Would it make a difference if alternate columns were contra-rotating? That way the 'rounded' opposite face of each adjacent rotor would act as a funnel for the 'cupped' part of the pair. Just an idea... 🤔
Nice one Mate! I dont understand why you needed the wood sheet. Why cant they be glued together directly with one big shroud/scoop?
Rob you need to put it on a swivel so it can catch the wind from whichever directions blowing
As david.lhowser points out, would ducting further increase the air speed to the pc fans. If so, if you put the VAWT wall behind (the now ducted HAWT wind wall) would there be sufficient energy left to drive that as well, or would one interfere with the efficiency of the other?
I know building the tapered inverted cones has been poo pooed but here is another method i have conjured in my noggon.
Use 6x6 wire “hog panel” farming fence. 48” by 120” welded steel wire panels for $26.00 each here local. Then lay a thin sheet of ABS plastic on top.
Heat the ABS to required temp using sunlight and help from a heat gun to allow the ABS to droop inside the 6x6 squares. Maybe coxed with a small form of sorts? Allow to cool and dull holes for your fans.
Pooof! Tapered wind catching guide for cheap and it’s water proof.
Correct me if I'm wrong: using the figures posted at 15:03, of .006 watts output for one wind turbine at the stated wind speed of 2.4 m/s, so 0.006 watts X 90 = 0.54 watts total output
It would be great fun, if a F1 Team would let you use their wind tunnel. I wonder if you could get a second row of fans to benefit from the first board of fans, with air directed intentionally. Brilliant project.
Aint that hard to build a wind tunnel. Its just a sealed corridor with sensors.
I'm thinking of cheap ( or free ) and easy nose cones for the fans, eg discarded Kinder egg capsules.
Are the Savonius columns contra-rotating? as that should help with a less turbulent airflow.
Instead of a flat surface, PC fans placed in the outer surface of a "cone" shaped funnel might capture more?....DVD:)
At the very least I would have used a 120mm PC fan. I have to wonder if a 12vdc automotive fan would be a better idea? They are designed for higher amperage after all.
Is there enough energy left in the wind after passing through your fan assembly to have your other creation behind?.
I know this is old now but I’d be really curious to know what model rectifier you used that has a low enough voltage drop to work with the 3 volts 0.100ma these produce?
These wind power generators do have their place, but I would like to see ones that can take being left out in the rain.
Maybe router each hole with a round over bit. Not as effective as a velocity stack but still should show improvement
80 centimetre fan and it fit perfectly in your hand, then it becomes a 80mm fan . Which was it ?
Robert Murray-Smith has another channel. cool.
On the legs with one wire , what is it , that you solder on to them ?
Also would you know which if your videos shows you making a PC fan in to a gen ?
I did search making a PC fan in to a gen but only showed 009 The Folding Wind Turbine
a connecting wire which you connect to the rectifier
@@TnTOmnibus Sorry , where is the rectifier ?
@@jayk2kyou have to add the rectifier yourself.
@@verystripeyzebra Thanks .
I did find the other vid on his other channel but thanks again
Mount it on top of your Van and drive down the road
Robert, 3D printing with smooth PETG plastic ducts that transition from a square opening to a round opening seems would be a magnifier of surface air pressure captured, and efficiently redirect to the PC Fans props to then strike those props at both a higher speed, and best angle of attack to transfer more mechanical energy potential to the PC Fans resulting in rotating them faster. Removable square nested ducts locked together on four of the square duct's sides that then are pressed tightly into the PC fan's board's flat surface round opening to hold the ducts tightly locked in place seems plausible to test the naked board against the board when fitted with the plethora of the square to round transitioning ducts suggested. When tightly populating the board face with ducts for each PC Fan the existing wind facing air pressure zone would be retained, BUT : ) moved outward from the boards previously naked surface to the area of the low resistance presented edges of the square nested ducts, to then have air motion guided to the PC Fans props. Resulting in more of the approchung air, at high pressure, and at a higher speed passing over the PC Fan props. The more efficiently directed air motion onto the PC fans prop blades at volume while still retaining the wall's forward facing square area positive pressure zone explained so eloquently here seems a wind force magnifier. Conversely, a larger forward facing round opening cone simply pressed into the PC Fans opening would not be much of a wind force multiplier as a wind pressure would leak around the outer round duct surface edges of round ducts onto then guided across the board face to the board edges. Thank you as always for the videos. I hope that Luke is doing well adjusting to University life.
Rather than 3d printing could you just but some cheap plastic powder funnels, cut them to suit. Might be a quicker way of prototyping/proof of concept before doing something more elegant?
@jackdaw1328 The desire is to collect, and direct all, not just some of the collected air pressure to be guided to the fan props at the best angle of attack with the most robust energy impact. The easier to make round funnel allows the air pressure zone to be leaked around the funnels outer circumference down onto the board's surface wasting wind mechanical potential energy in the form of decreased atmospheric pressure in inside the round funnel, and then the lost wind energy moves around the wind wall's boards four edges, and is lost there doing no mechanical work.That lost energy is best captured by square transitioning to round tight fit nested funnel edges to improve increase fan speed, and electric generation performance. Imagine how much air would be directed around a traveling I.C.E. vehicle front face bumper with only a percentage of air going through the front radiator grill. Suggested here is locked together square to round transitioning funnels so that the wind wall's air pressure zone stays located at the many square funnel wide throat opening entrance point, thus pressurizing the funnel's air volume inside the funnel the most, then moving the captured positive pressure air across the fan's propellers at an angle of attack by directing air with an angled vane to apply the most air movement mechanical energy to the curved fan propellers angled surface at the best angle. Air passing at angle too then go through the fan after energy is distributed onto the propellers surface at angle as to generate more efficiently the electricity by spinning the fans at a higher RPM in the above atmospheric positive pressurized air environment caught and directed by 3D printed nested square transitioning to round funnels with internal vanes as opposed to the lower cost, and easier to make smooth wall round funnels. Basically, the round funnel do not collect, and hold as much pressure zone as the air moves past the round funnel's loosely spaced arrangement on a square board's face, and lets outside leaking air down to the board surface, then off the board's edge creating a passing pressure zone outside the round funnels. Even worse is the air zone is blocked from entering the fan by the outer surface of the round funnel. Also no vanes smooth bore funnels do not direct the air in motion at the best angle to rotate the fans faster. Lost is applying that angled, and positive air pressure onto the fan's propellers at the most efficient angle of attack. Hope that the explanation, and example of a vehicle's front nose moving through the air creating a pressure zone forward of the vehicle's bumper helps. Maybe research air fluid dynamics of race cars to know more about forward facing air pressure zones, and how to manage the air pressure zone by air foils/ vanes. The square to round transitioning funnels inner surface with vanes acting as air foils in this case, offering a path forward by directing 100% of the air movement energy along the preferred path at higher atmospheric pressure to exert onto the fan's propellers, and also at the best angle of attack to transmite the most mechanical forces found within the air movement onto the fan's propellers, which is the intent, causing higher fan speed rotation. Cheers.
@jackdaw1328 The desire is to collect, and direct all, not just some of the collected air pressure to be guided to the fan props at the best angle of attack with the most robust energy impact. The easier to make round funnel allows the air pressure zone to be leaked around the funnels outer circumference down onto the board's surface wasting wind mechanical potential energy in the form of decreased atmospheric pressure inside the round funnel, and then the lost wind energy moves around the wind wall's boards four edges, and is lost there doing no mechanical work.That lost energy is best captured by square transitioning to round tight fit nested funnel edges to improve increase fan speed, and electric generation performance. Imagine how much air would be directed around a traveling I.C.E. vehicle front face bumper with only a percentage of air going through the front radiator grill. Suggested here is locked together square to round transitioning funnels so that the wind wall's air pressure zone stays located at the many square funnel wide throat opening entrance point, thus pressurizing the funnel's air volume inside the funnel the most, then moving the captured positive pressure air across the fan's propellers at an angle of attack by directing air with an angled vane to apply the most air movement mechanical energy to the curved fan propellers angled surface at the best angle. Air passing at angle too then go through the fan after energy is distributed onto the propellers surface at angle as to generate more efficiently the electricity by spinning the fans at a higher RPM in the above atmospheric positive pressurized air environment caught and directed by 3D printed nested square transitioning to round funnels with internal vanes as opposed to the lower cost, and easier to make smooth wall round funnels. Basically, the round funnel do not collect, and hold as much pressure zone as the air moves past the round funnel's loosely spaced arrangement on a square board's face, and lets outside leaking air down to the board surface, then off the board's edge creating a passing pressure zone outside the round funnels. Even worse is the air zone is blocked from entering the fan by the outer surface of the round funnel. Also no vanes smooth bore funnels do not direct the air in motion at the best angle to rotate the fans faster. Lost is applying that angled, and positive air pressure onto the fan's propellers at the most efficient angle of attack. Hope that the explanation, and example of a vehicle's front nose moving through the air creating a pressure zone forward of the vehicle's bumper helps. Maybe research air fluid dynamics of race cars to know more about forward facing air pressure zones, and how to manage the air pressure zone by air foils/ vanes. The square to round transitioning funnels inner surface with vanes acting as air foils in this case, offering a path forward by directing 100% of the air movement energy along the preferred path at higher atmospheric pressure to exert onto the fan's propellers, and also at the best angle of attack to transmite the most mechanical forces found within the air movement onto the fan's propellers, which is the intent, causing higher fan speed rotation. Cheers.
I think you need to add a diode to each fans output so they don't interfere with each other.
he did
Wind Wall plus Darwin Tower!!!!!!!!!!!!!!!
Did you try it both ways?
I don't understand
@@TnTOmnibus as in the board facing away from the wind? Also would some positionable hinged covers be able to increase air flow at the blade?
thank you for expanding mate - yes I did - it was worse
Thought it was a giant connect 4
👍
cheers mate
This is all a complete waste of time as it produces sooo little energy that the time spent making isn't worth it. There just isnt enough copper and magnet involved. If this was for educational purposes you could have done that with just one and outlined the data far better.
YOU KNOW HOW WIND WHIPS AROUND YOUR HOME AND PERHAPS ONE LARGE VENTURI COWLING WOULD INCREASE OUTPUT ?