Nikola Tesla's Thermo-magnetic motor mixed with the Wankel principle.
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- Опубліковано 7 вер 2024
- In the patent Nr. 396,121 (January 15, 1889)
Nikola Tesla described a reciprocating thermo-magnetic motor.
This video shows a rotary engine using the thermo-magnetic principle.
fun fact: you can power it with a magnifying glass
you are wonderfl nomere solar panals
random kid du yo ewen engrish brru?
Pedro Rocha lol
Pedro Rocha I thought the same!
you could also just use a electric motor... same effect.
It has a practical purpose in stirring up ones imagination and sparking ones interest.
False, attach bubble wand and let the magic happen
Practical use: self stirring pot :)
Severus Snape would be so pleased!
Self stirring chicken broth pot
lmfao
a fan and it is simply put blades on the spiny part
"Yea, it works"
When you put load on it, it doesn't.
with the torque of a falling leaf
Apply a larger wheel for more powa.
No. The answer for power is simple.
And it's what is most easily overlooked, and the brilliance behind this device. It's what the whole thing feasible, and the part the will be most commonly overlooked in this scenario. The elements here of what is possible is mind boggling
:0
@@robh467 Scaled up it still does not have enough torque to move itself and more up a hill. To get useful torque out of it, a 4 passenger car would have to have a curie engine the size of an SUV. Not an SUV engine, an SUV. You can scale it all you want. It is cool and useless.
@@StuartGray here's one for you since you like this kind of stuff ...
Every electric motor is a magnet motor
Developed 1800s
Neodymium magnets discovered couple decade ago
Halbach array discovered 90s
Put them together what do you get...
Same thing as if you incorporated a halbach array into the design of every electric motor.
Exponential power.
Like putting blades on a fan.
Or making wheels round.
L. Ron. Hubbard type shit
I'm an engineer and usually small scale models or concepts have a hard time to get me going, I must admit this is very impressive and IS worthy of investigation of better ways to heat the coil more concentratively or cool it faster to enable higher rpm.
No practical uses? I guess it's no more than a curie-osity
Please define "curie-osity."
it's a pun on Marie Curie I'm assuming...
Can honestly say this comment is my proudest achievement
You're rustling something Jimmy. You're rustling.
you make me sick
you can turn that spinning motion into electricity! this could actually be a viable way to generate electricity from heat. I can think of a few applications where this could come in handy!
Never mind the haters. Your engine, despite not being all that efficient or a "tork" monster, is illustration of the Curie effect. Very cool project!!! I like it!
This thing is great. It offers a mixture of so many important concepts I'm surprised I haven't seen any them being sold/used as science toys. Everyone always seems to build stirling engines, but this thing is so much more.. pure. Edit: there's no wankel in there though.
The heat is a danger to the magnet. Wont work
BRAVO!! excellent concept and theory; in fact, I would say this is the first EVER self running magnet motor! ! ! You still have the high energy input (flame) but in essence; it is the basis of every magnet motor ever produced. You have taken the designs that people claim will "Turn forever" and added energy in a way that most have never seen before. Thank you so much for posting this video, it will encourage further thinking outside the box.
Now to increase efficiency you could do several things; find a material that looses magnetic attraction at a lower temp, add a cold air stream to regain magnetic attraction faster after heating, USE electricity to heat the metal only at exactly the point after the magnet. recirculate the heat and or insulate the heated area. There are so many ways to improve it and most of the improvements may already exist in modern materials technology. The cooling airstream would allow you to add two or three magnets on the same flywheel and the electronic heating of metal loops would allow heating and cooling in a more specific spot.
Amazing facts about nickel magnetism and effects of heat !
Thanks for sharing
shure it doesn't have valves and it's not noisy but you have like zero tork and it seems to wast so much energie compared to a deisel engine
tork is for dorks
What makes you think it has zero torque? And why do you think diesel engines are more efficient? They're quite inefficient. All ICE engines are. Most of the energy of diesel fuel heats the atmosphere through the radiator and the exhaust, it never gets to the vehicle's wheels. You actually have no figures upon which to base your prejudice.
dlwatib Please post figures of your own to show actual and theoretical torque. You keep bringing this up as though you know, but never mention values of your own. Prejudice can work both ways. You appear to be prejudiced towards these devices and against anyone that doesn't share your enthusiasm for them.
tork made my day
Who cares about torque? The issue is how much POWER it can produce relative to how much POWER is in the fuel being added (= how efficient it is). Managing the thermal energy flow with some carefully optimized design would be an interesting experiment to do.
To the skeptics I read in the comments: ARE YOU KIDDING ME? your comparing a PROOF of concept model that is introducing an extremely recent concept, to a technology that has ben studied, tweaked, micro engineered with BILLIONS of dollars in research and development by the highest educated people throughout the world - then declaring it useless? That is the absolute best example of "shortsighted".
It is not a proof of concept, this thing has been studied for decades - and we even know the limits of its efficiency - and other engines have far surpassed that. This thing will always remain a nice toy.
patent Nr. 396,121 (January 15, 1889) not to recent
Harold Westrich
Max power of this is limited by the pull of the magnet on metal wool... which is very weak. Also it has to run on a very clean fuel otherwise carbon build up would affect the heating of the coil...
Just because it says Tesla doesn't make it magically the best engine ever, it was impractical when he invented it and even if you poured a trillion dollars into development it would remain impractical.
Matt Hunter the maximum power is limited by the pull of the magnet, sure, but you could say that about a motor in a Tesla car going 0- 60 in under 3 seconds. There are lots of variations and configurations with these (pendulums, pulleys, wheels, etc) but the main issue is the rapid heating and cooling needed, not the magnet strength.
*"but you could say that about a motor in a Tesla car going 0- 60 in under 3 seconds."*
Not really - cause there you have electro-magents. They are creating the power.
In a normal electric motor you use electro-magnets cause you can create very strong magnetic field at precise moments and places. here you only have one magnet that has to stay away as to not get hot/steal the heat-energy from the coil. And that magnet is also far weaker than the electro-magnets.
Fascinating! Even if it has no practical application, it's great science. and fun to watch! Thanks for it.
There is some torque of just enough to make spin bearings ? Do you know how many percent from the Carnot efficiency we can reach with this curiosity ?
He deliberately moved the magnet away to lower the speed (and also the torque). That demonstration is by no means the maximum torque that could be made available.
It's not a Carnot heat engine so the Carnot efficiency does not apply.
+diwatib Nothing real is a Carnot heat engine, it is just a theoretical optimum.
@@2adamast What he meant is that this heat engine is different from a Carnot engine in principle (there are no compression or expansion stages) so Carnot efficiency doesn't apply. Perhaps there could be some analog to compression and expansion in this device that would be very interesting...
I think this would have very practical use in the education field. You could replicate the set and have students build this motor in a science lab. More innovation could stem from that alone.
I don't think it would ever have a practical use as an engine. But it could be useful for many other things
Andrew Godly true
Only thing I can think of is triggering a whole bunch of inane comments!
Something different to think about and teach materials properties, science, technology and not look at porn. Maybe someone can do the math on these with a site to create positive feedback on performance enhancement of the math variables of the system with different design specs. I was thinking something to do with waste heat or heat in hot places for bored people at the least.
I could see something like this being built into a fireplace or rocket mass heater so that whenever there is flame burning it creates a draft and pulls the air through the pipes. That would help the fire to burn hotter and create a less smokey fireplace.
Thank you for the video, very interesting concept. I like the well machined parts of the engine and stand.
I'll tell you where this engine could be used!! We drive frequently from Arizona to Texas and see many oil wells burning off natural gas. They burn constantly and are not being used for any useful purpose. These firey plumes are quite large. You could use this engine to turn a generator to power the oil pumps!!! I'll be happy to accept my commission for this excellent idea!!! thanks
who else was waiting for the magnet part to move in a to and fro motion?
Me
i thought the piston was going to move lol
Tesla as an American citizen was an American Technology hero, he was the right person at the right time in the right country to foster his fabulous creations.
That is so cool! Seems like you could make it work even more efficiently with stronger magnets and more precise and pure materials. Does it become more efficient if you build it smaller? Even approaching the nano scale? Can you build rows of wheels to up the torque power? Can you build a gear system to use the energy?
it's an electric motor that uses heat instead of pixies. the heating effect would be the same as switching polarity electronically. if you could add more magnets and a way to heat two sides it would improve the torque.
The same engine principle of an element gaining and losing its magnetism can be demonstrated with gadolinium.
Try adding a brush system and power the NiCr wire with electricity instead of ethanol, then put an insulating jacket over it to prevent thermal losses. Seperate the wool into individual heater coils staged to be switched by the brushes. Have either the positive or the negative current travel through the shaft bearings.
so please tell me where the Wankel principle is in effect??
+Mystic V: Gone! Off weinerskin
Not reciprocating motion as in Tesla's Patent Nr. 396,121 but rotary motion as in the Wankel Engine. Isn't this obvious?
There is no such thing as the Wankel principle. The Wankel engine bears no relation to this device apart from having a rotating member. It would be absurd to suggest that ALL rotating devices are based on the so called Wankel principle.
No, Easy, fuel driven rotating ENGINE.. and I know of at least three, Gnome-style air cooled rotaries, wankles and gas turbines . still a neat device .. lets see about getting it to do something useful, like charge a 5 volt device??
then SAY rotary , to say wankel ( implying a lobed rotary element incise a hypocycloid casing) , is ..duplicitous
I can tell you put quite a bit of work into this, it could use a lot more development but i think it's brilliant. Keep up the good work
you can upscale it using a fresnel lens and the sun as heating source
For any practical build you would probably need 3 magnets and heat sources because with your model you're always gonna have an asymmetrical force on the axis in direction of the magnet. A more efficient design for the Ni-coil in terms of magnetic attraction and heat exchange would also be important.
I guess if you put enough development into this, it could have huge potential.
Heating with infrared laser might increase efficiency drastically
How so? Generating heat by slowly and completely burning fuel is 100 percent efficient, so all losses come from heat that escapes doing useful work. Therefore the best ways to increase efficiency are to 1) put shielding in place to direct the heat onto just the nickel wires and 2) regulate the flow of fuel so that the burn rate is no more than necessary, 3) nickel may not be the most responsive metal to use. Patents using Gadolinium also exist. There may be other metals that are even more responsive with less heat.
One might also take advantage of free heat by focusing the sun's rays onto the nickel wires, but free is not the same as efficient.
Perhaps but not so. Imagine an infrared laser makes its energy from electricity that could come from burning gas (or other source) at a power station. And the laser itself is not very efficient also. But it's an interesting experiment to do and I would agree that assuming we can ignore all the loses in making the laser light, it would indeed be more efficient than a flame.
the energy required to power the laser would be too much to heat the nickel wire
Jones Steve
Ralf Körbner Why ?
Actually, Nicola Tesla invented the same motor and patented it; (late 1800- early1900) by aiming a flame under a piece of thin iron when the magnet attracted it. The iron grew hot and glowed. It gave up its magnetism. and drew back. It got cool and was drawn by the magnet. This happened over and over and powered a coil.
ingenious.
I think you need a solar concentrator and a mist of water.
better heat differential, more RPM, more torque, more efficientm
mark warlick no torque still
Ryan Brewer
There is torque, or it would not move at all.
Perhaps a material with a lower curie point and more than one magnet, heat source and cooling zone?
You can surely add at least one magnet if you also use active cooling on the coils.
mark warlick Very low torque and it would not scale well.
Thin metal wool like on this model heats and cools easily, but is not attracted very strongly to the magnet, resulting in low torque.
If you made it with thicker metal it would need a lot more energy to heat the coil fast enough for continuous rotation, and a cooling system which would eat quickly into the efficiency.
Doubling the wire thickness would need twice the energy, twice the cooling but would not result in twice the power.
A lower Curie temp metal would increase thie efficiency, however, lower curie point metals seem to reach magnetic saturation (the point at which a stronger field and larger metal mass makes no difference) much quicker than high curie point metals, probably because of the same tendency for disorder that causes the curie point phenomenon.
Matt Hunter
Perhaps a bit of Ni45Co5Mn40Sn10 would be the thing to use.
It goes from non-magnetic to ferro magnetic with an increase in temperature.
Odd stuff, but I'm thinking you're smart and skilled enough to take advantage of the phenomenon.
I'm still trying to get my head around nitinol, but it seems to me that turning the curie point on its head might allow a device like this one to be more dynamic. Especially since the temperature differential is relatively small between phases.
and redicioulusly strong neodymium magnets :) hmmm
I would like to see a small battery powered "cutting" laser as the heat source. Then the turning of the wheel could be connected by pulley to a generator that would be connected to the batteries, thus continuously recharging them.
Does it work with 2 magnets 180 deg. apart or 3 magnets 120 deg. apart? This should have more power.
Yes but only with a burner next to each magnet.
It would have more torque but would run slower because the nickel needs time to cool below curie temperature before it reaches a magnet.
Then a cooling system of some sort or making the circumference longer should give enough cooling time. Another idea is how about multiple rotors and multiple magnets? That should increase the power.
Another ideal is to have another entire coil wheel connected to the same shaft as the first wire wheel, but with enough heat shielding between the first burner and first wheel and the second burner and wheel so you don't lose speed and still gain torque, in total gaining more power. So the first wire wheel will have its own burner and magnet, the second wire wheel will have its own burner and magnet, then also you can keep adding and make a 3 phase with 3 wire wheels, 3 burners, 3 magnets, all 120 degrees out of phase with each other. Note, to have a way to keep the heat from the burners from affecting the wire wheels of the other phases. Could set the shaft horizontally so each phase(wire, magnet, and wheel) is unaffected by the burner of the other phases, because heat travels up mainly, and the other phases will be to the side, not above or below, the heat shielding can restrict the heat from the side longer.
+Tony Hardy - There are so many variations of the idea to increase it's power but in the end the power is so small its not worth spending time and money for. It is a good toy and may be commercialized as a toy or novelty product.But nickel is not cheap so it will be expensive toy.
Yeah! If you had multiple rotors and then made the ferromagnetic material high surface area low volume and had a fan blowing air or maybe even cooled air over half of it it could go a lot faster.
Although Latheman didn't know it at the time, it was his invention, the "Curie Engine", that laid the foundation that ultimately led to the discovery of the Latheman Device, the heart of every starship's warp drive.
make for a good temp sensor if rotation speed is affected by heat
Why would you want to measure the temperature of the flame? It will not work without the flame, so how could it be used as a thermometer?
He probably meant temperatures above Curie point, so the temperature measured would itself provide energy for motion of the engine. Don't think it would work tho, the temperature doesn't seem to have any effect other than demagnetizing nickel.
*I made one with a propane burner on 4 sides with 4 big neodymium magnets. The nickel circle diameter is 0.75meter and have 4 air pump nozzle placed before magnets to cool even more. Which resulted in 20HP so it's much more sufficient to run a bike. To cool the nickel locally the required air can be gathered by the forward movement of the bike. The engine ended up heavier than I sign up for. The nickel rotary part must be heavy enough to rotate less thus produce more torque because high rpm evens the temperature across the metal, which we all want the exact opposite. It produces 52dBspl of sound which is higher than an electric bike. I would like to share my work when I perfect it to a level which I feel I'm gonna be proud of what I did in the past*
Edit : the sound waste comes from the burner and the nozzle
this engine can still b used for portable electrical generator for smart phone. .
Hussain Al Tajer if its a Samsung, the exploding battery can be the heat source 😅
HAHAHAHA
Just what the world needs, the masses of morons carrying flammable fuels and nearly 700 degree hot metal around. Actually... That might kill off a portion of the retarded population... So maybe a good idea...
Better to have Solar plates as phone cover
I found from an electrical engineer in Minnesota, about 10 years ago, that a Fresnel lens would start a fire using direct sun in a couple of seconds.....I watched him set a bicycle tire on fire, on a cold day in Minnesota in February, outdoors. I used one inside my house as an experiment to hopefully save on my power bill. What I found was that I could set a 1"x 4" piece of wood on fire in about 4 seconds, and as a test, I pointed the focused energy of the sun with this to the outside lead of an indoor/outdoor thermometer, which I had inside the house, where the temperature inside was 62 degrees. In less than three seconds the temperature on the thermometer went from the 62, to 147. I did have trouble with another experiment though, in trying to heat water in a sauce pan, or trying to melt some of the 6-1/2 feet of snow recently received. Didn't work. But, if the Fresnel lens could be used in place of the flame on this version of Nikola's machine,, this would have some potential. A Fresnel lens is simply a magnifier, and with this, I easily could focus the sun's energy in the winter into a pinpoint that gave results I had not believed in, up to that point.
This is a heat cycle engine converting heat energy to mechanical work so if NO HEAT LOSSES it is subject to the ideal Carnot engine efficiency limit = 1 -Thot/Tcold; with temps being in degrees Kelvin. Tcold= 273+25= 298, Thot=273+600=873 say. The Carnot eff = 1-298/873=0.66 WAY TOO HIGH! So, most of the heat must be list to the surrounding air w/o doing any work!
Isn't this a heat magnetic change based on the magnetic force at the Curie Point change mechanical work cycle engine. You want to have as little loss as possible technically. Maybe a thermo regulated material to control the fuel/air mixture once up to ideal temp with insulation to avoid heat losses so to maintain the minimal heat required to change the magnetic properties of the material. Less friction from magnetic bearings might help as well as a flywheel. I was thinking in a vacuum also though my brain is post dinner time with energy in the digestive tract focus for now. STP thoughts for now.
I meant the flywheel in a vacuum with the coil "ring" magnetically bound to the flywheel in the vacuum as to optimize or not affect the Curie point force location.
Even if it's not efficient it's still fun to watch and learn how it works!
that looks like a lot of heat not doing much.
Weller soldering irons use the Curie effect to control tip temperatures. A magnet in the iron's tip is used to turn off power to the heating element when the tip temperature reaches the Curie point.
Will IT fit in my honda?
To avoid heat loss for the purpose of increasing efficiency, the design may nerd to be very elaborate because heat is applied on a moving component. It certainly is a challenge.
Folks.... The hidden ingredient is Kryptonite!
So two limiting factors I immediately see as major problems: in a closed environment like an engine compartment the re-cooling of the coil would become very energy costly and the maximum speed would be predicated on whether the coil re-cools before making a full rotation, which is a pretty low minimum angular velocity. The second problem is using the flame as a heat source; it is VASTLY inefficient. Some other way of heating the cool, like a short electric circuit, would be great. This would be an interesting application of ambient heat of other processes: run a secondary alternator in a car by using one of these engines as a heat sink...
Value + = A force-air or directional heater or convection oven... If you are going to burn fuel to make heat... use a that heat to move a fan... need I say more...???
After reading comments; solar heat would be an excellent heat source... a bigger coil and more (mass) weight on the flywheel would increase torque... Power = speed + torque...
+Nick D'Annunzio Actually, Power is speed x torque, not plus.
The more mass the more BTUs are required as well as enough must be able to dissipate for it to regain the magnetic property. I'm not even sure that more mass necessarily equals more torque. Low specific heat metal would be ideal though. If they are lightweight for the amount of flux they conduct then a little mass would be lots of torque. A lot of mass would be a huge torque. +Nick D'Annunzio
Gadolinium is such a metal, transition temperature of around 68 degrees F.
you dont want to cool , curie temp is just a small different needed. think it has a good profit.
I was so happy to see that you had a working prototype, but sustainability is what this world need, wars are being fought because of oil but if we can get that option out of the pictures then this world would be a better place, thanks a lot for your contribution and I really appreciate your effort.
And what if you used that on a massif space station with the sun as a heat source? Could it work?
Could work - and still useless. A solar cell of the same size would output several orders of magnitude more power and that without moving parts.
But right now we don't know any other ways to create artificial gravity then movement. Plus we don't need to create power and then convert it into mecanical power and you can create power from the movement. It's a win win situation. And this motor is quite unrifined. Might be improved just like the solar cell were.
No, it is not a win-win situation. IN space this thing would be even worse. Solars cells have become quite efficient in converting incoming light to usable electric energy. Easily surpassing 30%.
this thing however, even under normal atmosphere is already so bad that jsut the convection-force of the flames would produce more power - in vacuum where there is no cooling for the coil it would be even worse.
and artificial gravity got nothing to do with that. If you think about just spinning a space-station - forget about that - we do not even come close to having the materials nor funding for such a gigantic station.
*"And this motor is quite unrifined."* No, it just is inherently that inefficient. No matter what you do, this thing can never become efficient.
Did you even grasp the concept upon which it is based? it is simple heating up and cooling down of a material. You need to heat up and cool down the coil constantly - just wasting away all the energy, to gt a little bit of force from the magnet. This thing never can come even close to the efficiency of a normal combustion-engine let alone a solar cell.
But ain't one of space problem is that it's to hot in sun light and too cold in the absence of rays. Exactely what this engine need's in the concept of a revolving engin and the fuel if already wasted in space?
And I completely understand the concept of the motor. I'm just trying to think outside the box.
This engine may not have a practical use in one sense but it's useful for education & study.
Thanks for sharing this video.
Can you imagine an engine than makes almost 0 power and is very inefficient
Like a steam locomotives powered by $100 bill?
Or a conventional ICE? An engine releasing 300kw worth of energy but extracting less than 100kw out of it...
Yes, a ‘72 Chevy Vega.
Practical use: satellite/spacecraft gyroscope. Use solar energy to turn the gyroscope, use fixed magnet as part of the engine.
Efficiency analysis?
Useful work?
Any practical use?
As the video says, no known practical use and very inefficient.
I would argue, however, that the efficiency and power heavily depend on the strength of the magnet.
The model used in the demo is not designed for efficiency. That does not in any way imply that the process is *inherently* inefficient. Unlike a Carnot cycle heat engine there is no known upper bound on the efficiency of this heat engine. It's all a matter of how much of the fuel and heat you can avoid wasting, how responsive the metal filaments are, and how close and powerful your magnet is.
It is a nice toy and that's it.
No matter what you do, it will always be really really really inefficient - with the same amount of input-heat you could easily generate 100 times the power with other motors.
And the limit for this engine is incredible low due to the way it converts the temperature-difference into mechanical work.
i agree it will be really inefficient, but it can be far more efficient than this demo shows. the open flame is extremely inefficient. If you consider the effective range of temperatures and control that variation so that the amount you heat up the wire and the amount that it cools during the rotation is minimized to still achieve the effect, the better. the bigger the magnet, the stronger the effect, and the higher surface area and lower mass of the nickle, the less energy and time it takes to heat, and the larger permanent magnet can offset the lower mass of nickle to some extent.
I am not saying cars will ever run on it, but there are plenty of examples of inefficient technologies being quite useful. Thermocouples take a difference in temperature and generate a millivolt level of voltage with it, which seems to be quite impractical, but bundle enough of them together along with a stable heat source like a decaying radioactive material, and you have the makings of the power supply for things such as mars rovers. It would be completely impractical for a remote control car on earth, but suddenly it becomes the most practical option for certain applications.
blauerninja - .... please, go back to school - you have much to learn.
No, this thing is fundamentally not viable - it can never, no matter what you do, come even close to the efficiency of a normal combustion engine. That is a simple matter of fundamental physics.
And a Laser? Could you with something even more stupid?
A laser is NOT an energy-source - it needs a pretty strong light-source - you know, the thing you usually do with electricity.
It is a thermal engine and produces power by turning part of the heat-differential into usable forms of energy. And due to the principle it works on - namely by working around the Curie point.
this indirect way of conversion also adds more losses. no matter what fantasy-materials you use, or impossible geometry, this thing will be less efficient than a 50 year old engine is.
it is a nice toy and great to show just how many ways certain effects can be used - but it can never become efficient.
It basically works like any other electric motor. Chasing magnetism. Although this way uses radiated heat in order to change the magnetic properties of the motor instead of electron flow. It just looks like a less efficient electric motor.
Hmm...loving the inefficiency of that. Would love an MX5 powered to be powered by this. And that sound? Orgasmic. Definately beats the purr of a straight 6...
Even if it doesn't have any noticeable output torque, it still can be use for something that need to rotate at a certain speed, like gyroscope
Nice adaptation. Tesla's version is totally different. Very clever.
I think it has the ability to distribute heat from a heat sink and do it more effiecantly than regular heat displacments,, small propellar and the like cabins and homes.. great video... thanks
I wish I could get a set of plans so I could make one of these for myself. What a thing to learn from!
Unfortunately I don't have a plan. But none of the dimensions is critical.
you only got fast heating nickel on a wheel. You could also use cobalt or iron but i think thats it.
What a beautiful demonstration. Made me laugh out loud when I saw what was going on.
I'm a thermodynamics ignoramus, so I may well have this wrong, but I think that the energy conversion is driven by the extra energy needed to heat the nickel above its Curie temperature in the presence of a magnetic field. That's the only thing I can think of that makes sense.
I have seen a very similar type of machine, using gadolinium instead of nickel , the main difference being that gadolinium has a switch temperature of around 20 degrees C.
You could possibly put these on roofs to cool houses on hot days, where sun is concentrated over one side of the nickel coil, and cool air is pulled across the other side of the coil by the rotation of the wheel, or these could be designed with ferrofluid to generate electricity. There are many potential uses...
In a cardplay i played in the 70's as a kid, there was a very impresive racing car with a wankel motor
the practical use is to incorporate this principle into other engine types as an efficiency boost.
"Can we see a combustion engine without..."
"explosions"
"fast pressure changes"
So a combustion engine without combustion. In fact I'll go as far as to say this engine doesn't even need combustion, just a difference in temperature in the coil. Which you can achieve with focused sunlight for example.
It could be useful in a gas water heater, the waste heat would just heat the water as usual, and it could drive a generator and the electricity would go into the house. In that case it would be essentially 100% efficient.
The main idea is the flame adds energy to the system that would otherwise be in equilibrium. The magnet would attract the coil to move in a cirlcle but would be repelled by the magnet attracting the other side of the coil +/- by adding heat energy the heat flux induces electrical flux witch causes an offset of energy balace in the direction of rotation
Heat with solar magnified through Fresnel lens the rapid heating capabilities of the solar Fresnel combo would enable relatively thick coils to reach 360°F quickly, and the more ferrous mass, the more torque. This engine has so few moving parts, is simple, and aside from the rotor and stator components, it could utilize virtually any materials for its construction, and would incur only minimal wear. I can see the possibility for practical application of this design.
Here's a link to the patent, would be great to have it in the description.
I liked the part when it said "...a combustion engine with no explosions... this is it."
External combustion engine. Coal fired steam engine also doesn't use explosions.
I want one! It’s the simple things in life that are often the best.
Try making the Nickel into toroid rings that line up with the magnet poles so you can have an induction based repulsive effect to increase motor efficiency
Would you mind explaining that a bit? Or pointing me to relevant resources?
Stronger magnet, and a fresnel lens to heat the coil. You could scale it up as well. Because of the high concentration of heat, you would need to regulate heat by adjusting distance of the lens, or limiting light entering the lens.
... and the efficiency is... Best sold as seen on TV.
seems most efficient. just need a massive rotor to store the energy and focused sun light to diffuse magnetism
Absolutely amazing science demo. Thanks you!
Sterling engine is a better alternative for collecting waste heat. It has more torque too, so it's actually usable.
Although, you can change the wheel and belt sizes on a sterling engine & increase it's power ratio/torque.
The histeresis on transition temperature for nickel is only ~30 deg c, so the optimum heating and cooling cycles would only oscilate the temp that much.
A smaller, more directly applied nozzle directed flame could also be used to heat the nickel so there is less fuel wasted.
The torque output is based on the strength of the magnets. Because heating and cooling is fairly slow, max rpm is fairly low, but 44 ft-lbs @ 120 rpm is 1 hp or 745 watts. increasing rotor mass increases the amount of heating needed. Increasing the size of the permanent magnet just give you more torque for zero extra energy input.
Would be interesting to put a charge to the magnet, maybe use a propane torch instead of a candle, and some form of compressed air on the opposite side to cool it?
It would be neat to see how it changes things, or if it does.
That's not a combustion engine, but it's definitely a clever invention.
en.wikipedia.org/wiki/Combustion
me thinks there is a size limit as a larger unit would have heat dissipation issues. Tesla was a genius 👌
The curie effect was used for thermo-magnetic switches in soldering irons. (Weller Magnastat).
Tesla patented a lot of thing, some may have never been built by him but he knew he can sell his patents if someone else does.
The max torque would be the magnetic pull of the magnet. The Flames are just heating the nickel. You may get a mechanical advantage from the radius of the wheel.
Could you build several of these in an exhaust system of any number of style engines (Marine, big diesels, F1, etc.}. It could use the heat from exhaust to run the Thermo-magnetic motor and it's flywheel could be shaped like a fan to assist in removing the exhaust gasses. the heat in manifolds is going to waste anyway, you could use that heat to help with the removal of the exhaust gasses.
Thank you ! This could find immediate application as a retrofit device in furnaces &c... only a century-plus later than its invention.
O K. Stack several discs on a common shaft with small separators between them. Use an thermo-electric strip as a heat source. Have a vertically wound electro-magnetic bar in place of the small magnet shown. This design may allow you to use plastic or ceramic components in place of the heavier metal. Looking for some small amount of measurable torque. The electricity could be from any number of sources and passed through the coil before being used as a heat source.
I think thus take the fun out of driving, not hear the roar if the engine, but seeing the speedometer going up
Make an arrangement so that it connects to a rotor of a small generator and measure the output power (IV). Then divide the amount of ethanol burnt by the power to find a rough efficiency !! GO GO
You could attempt to measure the torque output by fixing the rotor onto a small electric motor so that it acts like a dynamo. Wire the electrical output to a second electric motor so that as the rotor turns the second motor is powered up and starts to spin on its own. Then attach a 12 Inch / 1 Foot arm to the second motor's shaft and fix the other end to a set of spring scales preferably calibrated in Imperial pounds (to save converting from kilogrammes to pounds). A magnifying glass may be required to detect any advancement of the needle on the scales from the stop with this contraption. The measurement will be Torque in Pounds / Feet (or Foot / Pounds depending how one prefers to say it).
This arrangement is called a brake horsepower dynamometer and measures BHP once the equation Torque x RPM divided by 5,252 is applied. If the electrical output from the first dynamo motor alone without the second motor is measured to determine Wattage and horsepower calculated from this then it is a Watt's horsepower dynamometer and the output is returned in HP after mathematical conversion. In the industry this is regarded as the cheapest and least accurate method of determining power output. This is why some things are rated HP and others BHP to denote which of the test methods were applied.
For an interesting variation try replacing the alcohol burning heat source with a solar concentrator - a lens, mirror, or simple miniature solar oven.
Also don't neodymium magnets themselves have low curie points or do they become irreparably damaged if they exceed their heat specs?
magnetism is reduced by flame and amplyfied by cooling on the counter side.- > a magnetic stirling motor. Is magnetism also additionaly faster coolig with emproved energy transfer ? Yes some high energy transistors have even field emproving and alternating combined with heat transducting materials for cooling ,at fixed outside parts
I think it works by the centrifugal edge of the magnet repelling motion (heat) of the wire. I'm sure that's how Tesla saw it in his design. Thank you Ken Wheeler
I felt to sleep right after I watched this video
Never mind the inefficiency or the impractical uses, it's proven to work, that counts for me!
The heat source can be from a Fresnel or other lens focusing solar energy on that heat point.
Thank you for posting incredible craftsmanship and very high knowledge level about your engine we need more like you great video!!!
very cool video i think its great to mess around with old ideas . i had watched a video about theoretical mathematics and how older principles found uses in today. its great to explore past ideasbeing resurfaced there may be new for them today