The Mechanical Battery 

New Mind
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Though more commonly known for its electro-chemical variant, a battery or accumulator is any device that stores energy. Batteries fundamentally allow us to decouple energy supply from demand. But a far lesser-known, mechanical based rechargeable battery based on flywheel energy storage or FESS is showing a resurgence of interest.
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13 Kas 2019




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Bear Naff
Bear Naff 3 yıl önce
Little known fact - Kevin Costner bomb "Waterworld" was meant to actually save the world. The plan was to channel Kostner's profits to his brother, Dan, who ran US Flywheels. This company was working on a flywheel that stored useful amount of power in a carbon fiber flywheel rotating on permanent magnet bearings in a vacuum. The spec was to develop such a flywheel that could reach speeds of around 100,000 RPM. When the movie bombed, the investment was, alas, lost. The company folded decades ago.
Divergent Droid
Divergent Droid 3 yıl önce
Ahh.. thats why he was such a bad actor. I see....
Vincentius 3 yıl önce
Not really Bear Naff. Waterworld is a vision of the earth after the collapsing , when the surface of the earth will so decrease that water will cover most of it. You can't fight the physical natural laws . . . The sun is burning all in our solar system, and this thermal energy is release in explosions by the planets. This is the cause of the birth of the moons. The earth will explode one day. Dinosaurs are dead because of this periodical / cyclic event . And after, we will be in a kind of water world. This is why they build Machu Picchu ... and this is why one ancient civilization is in Tibet. The High altitude will be the safe place to be when this event will come. lol
Zünder 3 yıl önce
Waterworld did alright though. Its a myth that it failed financially. Overall it even made a bit plus.
Vincentius 3 yıl önce
@Zünder - It's not a myth, it's a cyclic reality.
Justin TotheTRUTH
Justin TotheTRUTH 3 yıl önce
Bear Naff The movie didn’t bomb it was one of the most popular movies in the world if not the For its time
Hellgie1 3 yıl önce
We have two of these at work. They are rotary UPSs. They are spun up with power from the grid. They are constantly spinning at 1800 rpm. Connected to generators, automatic transfer switches will switch to them whenever we loose the grid. It will provide 1.5 MW of power for 15 seconds. When grid power is lost not only do they provide power long enough for diesel generators to fire up but they clutch start their own diesel generators to keep them spinning. No batteries needed!
j p
j p 3 yıl önce
Hellgie1 wow.
Gustavo 3 yıl önce
But don't you need batteries because of the transfer shitch delay? For such a big system it's mandatory.
@Gustavo They are the batteries. Transfer switch delay would be the same for a battery system. I believe you are thinking of an "online UPS" which is constantly supplying power through an inverter via the batteries, which are constantly being charged by the grid. No delay with those. Probably used in conjunction with the main Diesel / flywheel UPS in server rooms etc.
Rob H
Rob H 3 yıl önce
Take this video down now!!!!!!!!!!!!!!! Accelerating faster than Earth's spin in centrifugal forces does what; faster than the solar system...? Exactly We know the benefits of being able to have centrifugal force; it can become a gyroscope, that provides stability In multiple axis, with multiple gyroscopes at different dimensions....well then all you need it to provide resistance in any variable to make force in that direction; i.e. everything we see is a loss of the universe; heat, electricity, ect. If you can spin hundreds of thousands of rotations per, whatever, then you could do millions with a short leap in advancement. So a super electrostatic motor, that is also gyroscopic...a battery, your propulsion, stability control, all in one. Thrown into your flying saucer; you'd fly into a thunderstorm and charge your saucer; spinning your gyroscopic mechanisms up to millions of rpms, all stabilizing each other; and enough power to fly around the Galaxy. Make sure hang solo has done the proper calculation in the computer; zip off into space. Avoid the emp's of Betelgeuse 😘; he made mention of this 🙊🙉 So again; take this video down now Did I mention zero friction lubricants or magnetic suspended bearings. What about new rare metals and materials that cool with friction; I think I've said to much... Again, take this video down now. :Copy and pasted:
I am Satan
I am Satan 3 yıl önce
This isnt a mechanical battery, as much as a mechanical capacitor.
Chernogorsk Yıl önce
Imagine if this gets implemented in the automotive world, and after a car accident and the enclosure is broken the flywheel is sent 8km down the road
Thehemmo Yıl önce
it will not. the weight of the flywheel also gyroscopic loss makes the car inefficient.
mack Chris
mack Chris Yıl önce
They would need at least two flywheels spinning in opposite directions to cancel out the gyroscopic forces
Thehemmo Yıl önce
@mack Chris no... it would make it even heavier also I mean the losses when you turn the car the flywheel will lose energy from that rotation.
Chernogorsk Yıl önce
@Thehemmo I think it's supposed to just be a joke
Sean Hartung
Sean Hartung Yıl önce
They already did it in a bus so why not
Bram Weinreder
Bram Weinreder 7 aylar önce
This is very educational. It says everything it needs in terms of engineering, and still also makes sense to non-technical people. What appeals to me most is that flywheels, due to their inertia, are able to bridge gaps in power with low sudden changes, so that systems have time to adapt if need be.
Gman 2 yıl önce
I love this video. I don't know about anyone else but for the longest time I've had a sort of obsession with fly wheels. I always knew how useful they could be. I never thought to think how there could be such a science to this and how much effort has and will be put into flywheels. This video almost makes me feel complete lol so weird how a video could make me feel so justified in my feelings for the most random of things.
𓅂RAJAT DANIッ 5 aylar önce
I can understand.. Same with me for Flow batteries, aluminum Air batteries and My fav of all Pumped Hydro batteries. So far Flow batteries Has proven it's a worthy successor for li batteries.
Mark Rosenblitt-Janssen
Glad to finally see some coverage of this idea. I like the idea of flywheels that clutch in while breaking and then release it back to the tire when accelerating.
TheAnnoyingBoss Yıl önce
Just like electric basically but even simpler I think. Yeah they'll come with brake pads but the spring can also be the brake if some geniuses that can design simply and reliably can get their hands on it.
Milo HoBo
Milo HoBo 3 yıl önce
I wouldn’t think that using a flywheel energy storage system would be very safe in a moving vehicle, one accident could be catastrophic. But using it in conjunction with solar panels for a house could be quite useful for night time power use.
BRT 3 yıl önce
Exactly my thought as well. Worth researching for feasibility.
HAX TiME 3 yıl önce
It's not possible to use it for anything that's not "sitting in place", or moving in a straight line, because the higher the energy in a flywheel, the more energy it takes to accelerate/decelerate it in any direction. It can be used for your house for storing limited amounts of solar energy for sure, but not anything like a "mechanical battery" for cars.
Glenn Obiero
Glenn Obiero 2 yıl önce
But you could let the flywheel maintain its axis of rotation by allowing others axis points connected to the flywheel’s axis in three dimensional space, like a gyroscope toy, to rotate in the frame of the car’s rotation. Second: I am not sure if gyroscope force are affected by centrifugal force, which would mean a cars change in direction has no effect on the gyroscopic forces.
Anthony Day
Anthony Day 2 yıl önce
Moving vehicles have tanks full of highly flammable liquid, massive lithium ion batteries and high speed reciprocating pistons. All dangerous if not managed properly. Flywheels are perfectly safe in moving vehicles if mounted appropriately in containment housings.
Huey-Fan Yıl önce
@Glenn Obiero if you would drive left/right, that axis won't affect the flywheel at all, but what about a speedbump? Due to gyroscopic forces it will exert a force on the car! If you have two counterrotating flywheels, they would cancel out each others gyroscopic precession!
Internet User
Internet User 3 yıl önce
I was nearby a flywheel energy storage research and manufacturing building when one of them catastrophically failed causing a mechanical explosion that shot tons of twisted metal in all directions. Some of the metal fell through the ceiling where I was working. Luckily nobody was hurt. Any kind of mass energy storage will have issues like this however. Releasing tons of energy all at once is dangerous no matter what the technology is.
PooorMan-DIY 3 yıl önce
that would be perferct energy source for helicopter/airplanes ... lol
Mr. Person Humanson
Mr. Person Humanson 3 yıl önce
Releasing tons of energy all at once is called, an explosion
@Mr. Person Humanson This made me rofl. :D
ynotawoody 2 yıl önce
Imagine sitting with something similar to that between your thighs while traveling around 200 MPH. Ever wonder why modern top fuel dragsters have the drivers cockpit located forward of the engine? They weren’t always like that you know. Do an image search using “front engine dragster cockpit” and you will get the idea.
Internet User
Internet User 2 yıl önce
kcotte59 the news stories on it can be found on Google if you search: poway ca flywheel explosion
Mostly Penny Cat
Mostly Penny Cat 3 yıl önce
When I did my work experience at IBM, they had flywheel UPS systems. I suspect you could also use them as surge protectors. And I reckon gasworks regulated supply pressure (gravity battery) It was the early 90s.
jocbt Aylar önce
I was always fascinated with old movie projectors in grade school (70's). There was a mechanism that you could turn with your fingers that once it was rotating, would keep going for a long time. I suspect it utilized a flywheel and reduction gearing to store the energy. Imagine a smaller flywheel coupled to a larger slower flywheel with gearing that would convert the much higher torque from a massive slower flywheel into faster RPM with less torque generator.
Coal Sauce
Coal Sauce 3 yıl önce
i dont know how long its been since I've been drawn to the content made by a single channel. absolutely amazing content!
Arnav Rawat
Arnav Rawat 3 yıl önce
What a marvelously informative and thorough video. Many people don't tell the audience the complete detail. You do and thank you for that.
Ben Terrell
Ben Terrell 3 yıl önce
One of the physicists who worked at Culham fusion project in the UK ended up working closely with me for a couple of years. He told me a funny story about that flywheel. Apparently he was asked to calculate what would happen if the flywheel managed to get free from it's mount. He calculated that simply nothing would stop it until it got to the north sea... That's a long way through fairly densely populated land. He was then asked to calculate the impact of a departure should the flywheel be mounted so that it span in the horizontal plane. That was even worse because all of the energy would be converted to heat and kinetic motion in one place. Essentially it would be like a large bomb. Nothing bad ever happened.
Gearloose 3 yıl önce
I didn't hear it mentioned, but we do actually have a ginormous flywheel energy storage system in form of the rotating mass in the electric network, both the generators and the motors. This is not usually apparent, but powerplants do rely on this during switchover etc. and locally dealing with high inertia motors and variable frequency drives they can keep the dc bus energized as long as they spin.
christopher lobato
christopher lobato 3 yıl önce
Storing energy as mechanical energy in the form of a flywheel is genius. I particularly like the applications for the system in space. If we were to ever make it in space I believe this would play a huge role in storing mass amoumts electricity. A solar forge. Sweet sweet imagination eh?
christopher lobato
christopher lobato 3 yıl önce
Hold on a low resistance hydrogen filled chamber? Excuse me? Maybe he's talking about helium?
YodaWhat 3 yıl önce
@christopher lobato -- Hydrogen is widely used for this purpose, even filling the enclosures of giant electric generators. Hydrogen is cheaper than Helium and has higher speed of sound (higher heat transfer) at a given temperature. There is zero explosion hazard as long as no Oxygen is mixed in. So keep the enclosures slightly pressurized!
Lavern Roerig
Lavern Roerig 3 yıl önce
10hrs spin post input..(?) -Not possible, were Earth also spinning (_______F.E.______)
christopher lobato
christopher lobato 3 yıl önce
@YodaWhat Interesting. I feel this would have great potential done in space itself. However there is tons of radiation in space. utilizing that itself could be very good no?
Scott Campbell
Scott Campbell 3 yıl önce
Mechanical storage looks like it could make solar and wind power a LOT more practical!
Julia Set
Julia Set 3 yıl önce
Thank you for this video. I remember seeing a video right here on TRvid about a company making flywheel storage that powered up a flywheel during low power demand periods and then generating power when power demand was high. It claimed low cost, near zero maintenance, and the flywheel could spin virtually forever. It used a flywheel in an enclosure with a near vacuum inside.
eM Cee
eM Cee 3 yıl önce
Great video! If multi-cell kinetic batteries could be designed on a nano-scale then their energy density would be sufficient to replace chemical batteries in all portable devices and vehicles.
Lets Play Squire
Lets Play Squire 2 yıl önce
Came up with a fly wheel design a decade ago using a hollow torus made of a "Y.B.C.O." ceramic with a track in the inner ring, the ceramic acts as a super conductor at temps below 90k. Liquid nitrogen, which is pumped through the hollow torus, boils at 75k so turns the structure into a superconductor holding ring. Within the track you have 'spokes' of rare earth bar magnets that are mounted on a central axis so they polarity of the extremes of the spokes are all the same. In theory with the meinser effect the spokes are suspended in place with zero surface friction. Capping the torus and making the internal area a vacum would remove the air friction allowing the magnetic spokes to rotate indeffinetly so long as liquid nitrogen is supplied into the torus hollow. Alligning bar magnets externally perpendicular to the spokes so that they attract the spokes as they approach and repel them as they pass would keep the spokes spinning and perhaps even accelerate them. Finally encase that rotating magnetic field within a ball of coiled copper to generate electric current at the cost of liquid nitrogen which is apparently equivalent in cost to milk.
jim Parr
jim Parr 2 yıl önce
Very interesting. I wonder if the ULTRA-CAPACITOR with similar self-discharge properties might not be a more suitable short-term, high discharge rate storage system for some of the flywheel storage applications cited in this well presented video.
Genghisnico13 3 yıl önce
Really nice introduction to a topic most of us are not familiar with. Seems one of the best technologies for grid storage.
DunnickFayuro 3 yıl önce
@Frank M Killing birds is better than killing humans. Still, we have to improve on this, but if you choose bats / birds over humans, you're in a special kind of stupid.
Zubair Khan
Zubair Khan 3 yıl önce
An excellent video. Well researched AMD presented in simple terms. I hope you follow it up with updates on the technology and daily uses as developments occur
brian wixson
brian wixson 3 yıl önce
Excellent informative documentary. There was a historical flywheel technology not mentioned because it was not for mechanical storage but nonetheless advanced the technical ability to build high energy flywheels. These were for the stabilization of ships at sea to dampen the rolling motion for the comfort of the passengers. They were also used in strategic ballistic missile submarines to stabilize the firing platform.
Bouslama Karim
Bouslama Karim 2 yıl önce
The flywheel effect is also used in hammer mills and press brakes to accumulate force before impacting the material.
Dana Peck
Dana Peck 2 yıl önce
Pumped hydro storage, especially closed loop examples, are worth consideration for a future episode. Lots of working examples, scalable to multi-gigawatt
Bill Kerr
Bill Kerr 3 yıl önce
Flywheel energy storage was my school science project back in 1975. I was inspired by a magazine article describing a bus under test at the time that used a high speed flywheel in a vacuum. That article contained the first mention I recall seeing this strange material called carbon fiber. I was very nearly injured when a bicycle wheel bearing I was using in my project failed.
77gravity 3 yıl önce
Somewhere around 20 years ago, maybe 30, I saw a car that had a dozen small flywheels, all gimballed. Each unit was about 2 litres volume. They fit into the standard engine space, along with the electric traction motor. This solution seems possible, small units that are easy and cheap to make and install. It gets past the gyro problems of planetary rotation and turning, climbing hills etc.
N Marbletoe
N Marbletoe 3 yıl önce
wow that's weird and cool
sharefactor 2 yıl önce
The energy capacity must have been egregious.
Ruben Kelevra
Ruben Kelevra 3 yıl önce
Fly wheels are good for short durations before something else takes over, thus enhancing grid stability for example. But using a large shaft, like a mine shaft and lowering/lifting very heavy weights are much better because there's no loss in stored energy even if it's stored for days.
Gregg Vandenbosch
Gregg Vandenbosch 3 yıl önce
Nicely done and well researched! My only comment is that if we are considering short term power storage as a good application for flywheels, shouldn't we bring capacitors into the conversation?
Al Dolajak
Al Dolajak 2 yıl önce
I did a high school science project on this topic back in the early 70s. I used a six inch diameter, 3/4 inch thick solid steel flywheel spun up by a vacuum cleaner motor. With only the shut down vacuum motor as a load, it would continue to spin in excess of twenty minutes.
Mohammad Khairul Islam
Hands down the best informative video on flywheels for newbies! Thank you!
veronicathecow 3 yıl önce
Until your video I really hadn't thought that flywheel storage had a place in the future but now I see some good advantages for static systems, thank you.
Hadzabadza 3 yıl önce
It will most likely be especially useful in space power plants - weightlessness makes magnetic suspension easier and the system can be shielded from heat, meaning cryo is easier as well.
veronicathecow 3 yıl önce
@Hadzabadza good points although would there be problems with moving satalite around due gyroscopic forces?
Hadzabadza 3 yıl önce
@veronicathecow I would assume you don't have to move an entire power plant satellite around, just its active components (I'm thinking this trvid.com/video/video-q-Lrj35HcbQ.html) like mirrors or the transmitter. However there might be a need to rotate it if the orbit isn't on the same plane as the ecliptic, because otherwise the radiators will get exposed. Yeah, the gyro forces are the trickiest part, but I think the benefits outweigh that little nuisance.
ARD Industries
ARD Industries 3 yıl önce
Thanks for that explanation. VW announced that they build charging stations with that principle to be able to get higher charging speeds out of low charging speed environments. They didnt really explained how that works so thank you for doing that 🙂👌🏻
Sean Kim
Sean Kim 3 yıl önce
I really like this concept. I hope this gets developed soon.
Daniel Clements
Daniel Clements 3 yıl önce
Kind of reminds me of the old wind up toy cars I used to play with as a kid. I remember thinking it would be "neat" to have a real car that could operate more or less using the same principles but imagined that such a car couldn't exist since it wouldn't go very far without being wound up or recharged again. However with what was just describe it doesn't seem as far fetched as I first thought.
Cody Maddox
Cody Maddox Yıl önce
Hey, at 5:58, you mentioned that the voltage of an AC machine suffers at lower shaft RPMs. I'd argue the output frequency is affected more so, since the number of coils on an AC motor or generator typically greatly outweigh the rate of flux movement. The output frequency is directly proportional to its speed though
Dewiz 3 yıl önce
Strikes me that flywheel batteries are a much better answer to stationery energy storage systems than even Elon Musk’s powerwalls. . . Excellent videos, sir. I’ve subscribed, and hit the bell!
Stasiek_Zabojca 3 yıl önce
Great, video about my favourite energy storage system! We need more videos like that, it's such a shame that people are talking only about chemical baterries... :/
Stasiek_Zabojca 3 yıl önce
@Brandon Tseng Excuse me, but could you kindly make your own comment, not responding to mine for no reason?
Wren 3 yıl önce
Subscribed. What a thoroughly entertaining and educational experience, thank you for your hard work *smiles* The presentation of the content was top notch, and extremely informative. Thank you for making this, I look forward to watching all of your content, and again just want to say thank you for this. Concise but thorough information combined with visual explanations/examples alongside your narration made this video into something special. I would gladly share it with younger people getting into STEM as an example of how exciting sciencetechengineeringmath can be, alongside it being an easy-to-understand presentation of concept-to-reality elements. Again, my deepest thanks and gratitude for your hard work giving us such a fun and educational video. Your editing and presentation are top tier, the animations were perfectly demonstrative, and the narration had no superfluous moments of self-indulgence; everything worked together as a very functional presentation of pertinent information. I could share this video with a classroom of nearly any age group and they would enjoy it and come away with a trove of forward-moving concepts and possibilities for the future. Thank you again, heh and thanks to anyone who read this long-winded comment, it's very early in the morning where I am but few things get me as excited as STEM content, especially when presented in such a delicious manner. Best wishes to you, thank you again for your research, hard work, and presentation. :) I look forward to browsing your channel thoroughly, and sharing it with students as they grow into our future foundations of intellect. Thinking of "anything" and applying that imagination's experiments will help all of humanity to jump the fences that cage our reality, furthering the exploration of all aspects of existence towards fulfillment and exploration of "possibility." Gosh how I love the joy of experimentation in science, how it takes just ONE thought to jump a fence into a new pasture of concepts... and once that single jump opens up the gate, we all flood into it and experience a beautiful new place filled with purpose and possibility, lol then we finally hit another fence, and the cycle continues. I love how we'll all stand on the fence boundary and observe everything we can about those new fields, how we'll examine everything we can see from this perspective... and after generation after generation of observers, someone will think outside the paradigm just enough to open a gate into this new field, and from there everyone can flood into it and personal expertise will digest every aspect of it, revel in it. We'll learn everything we can about it, and it'll be a beautiful thing. *smiles* And again one more fence, one more opportunity to gaze at the unknown, and one more breach to be hazarded against common sense and the mysteries of those unknowns. Cycle continues, we learn more and more that we know nothing at all but the pure joy of science lies in documenting what is and what can be, and that springboard of possibilities drives us into the beautiful unknown future of reality. Babbling :D
New Mind
New Mind 3 yıl önce
I read all of it, thanks and cheers! :)
Modern Crane & Rigging Inc
@New Mind someone has a secret admirer
blueckaym 3 yıl önce
Very good video! Clear explanations and great build up of the concepts!
Steve Elford
Steve Elford 3 yıl önce
Very interesting thank you the lesson. Always thought mechanical energy storage could be an answer. I have my own idea on this subject. I have a home energy storage system idea based on integrating mechanical storage. There are so many simple alternatives to what we do now.
Eric Scaillet
Eric Scaillet 2 yıl önce
But is it economically viable ,effectively our present problem are too many have not coupled with overpopulation, fix that and the problem goes away.😒
Exeter College, UK, Technology Centre
Thanks for this video - it seems that global industry and manufacturers are beginning to realise the great virtues of flywheels. About 10 years ago I was basing my university level student projects on the development of a Flywheel Energy Storage System (FESS) for use in the third world. My brief was that it must require minimal maintenance, it must have high energy density, it should be used for decades - even centuries - with no loss of storage capacity or efficiency, it must be totally sustainable, require only abundant and cheap materials and totally un-toxic to the planet - a challenging brief which only FESS designs or mechanical gravity based designs come anywhere close to fulfilling. Over several years of development, we decided that it was much better to go for low angular velocity (
Brilliant Design!
Brilliant Design! 3 yıl önce
Well done presentation, but the biggest problem if you ask me is the fact it is a mechanical and inverse system. I see useful applications for short term standby applications as you indicated for grid equalization, but not for vehicles or extended power storage.
Genubath 3 yıl önce
Another type of mechanical energy storage that is interesting are big towers that have heavy hanging weights that are lifted by surplus energy and are lowered to produce energy. A lot like old cuckoo clocks. They don't require expensive control systems or cryogenic cooling or magnetic bearings.
-- 3 yıl önce
I just did some calculation on this: A 2-meter cube of steel (assuming 7.5g/cm3 density) lifted to a height of 60 meters would provide 9800 watt-hours (9.8kWh) of energy at 100% efficiency. (7.5g/cm^3 * 8,000,000cm^3 * 1kg/1000g) * 9.8m/s * 60m = 35280000kgm^2/s^2 [...then] * 1h/3600s = 9600kgm^2/s^3 Assuming you needed 2kW over an 8-hour night (16kWh), and you made your weight out of lead (11.34g/cm3), you would need a 2-meter-cubed weight of lead lifted to a height of ~51 meters - plus error margin, since that's assuming 100% efficiency. (Same equation as above, just work in reverse, flip everything over, and cancel out units to solve for meters... the '5m' in the equation above): 16000kgm^2/s^3 * 3600s * 8h * s^2/9.8m * 1/(11.34g/cm^3 * 8,000,000cm^3 * 1kg/1000g) = 51.83m The weight-tower would have to be fairly beefy, and the weight would have to be channeled to eliminate dynamic load (tectonic sway). The connecting cables would have to be fairly beefy as well, and rated for wear. You could weld the weight container together on-site, then place lead blocks inside by hand. That wouldn't be too tough. The last tricky part would be designing the dynamo, and rating its consumable elements for wear. That's a lot of money just to store 16kWh. You could combine the cost of construction and the estimated cost of consumables versus batteries. I'm no fan of the Tesla Yuppie-Hipster-Techno-Grey-Goo-Dystopia, but just comparing raw numbers, a Tesla Powerwall can hold ~13.5kWh (7kW peak output, 5kW continuous, more than enough for a residential house's overnight consumption), lasts for ~12 years (Version 2, at least), and costs ~13K. I think batteries are just too damn efficient for much else to compete... I just want other companies to get their butts in gear so that Ol'Musky has some competition and prices come down.
Genubath 3 yıl önce
@-- Thanks for the calculation, much appreciated. I wonder what the price would look like at scale? Water towers hold a lot of weight (even more than your lead example), so I wonder what sort of potential energy they can hold.
-- 3 yıl önce
​@Genubath Actually, I was surprised by the amount of mass that water towers hold aloft when I actually crunched the numbers... A water tower with a 400,000 gallon capacity held 50 meters aloft = 1,514.16 cubic meters = 1,514,160kg @50 meters (approximating, since not all of the fluid is at that level...) ≈< 206kWh. I still think that the engineering requirements will force us to look for battery-based solutions... but it is interesting to crunch the numbers.
-- Yıl önce
@Elements Solutions Ahh shit, that's way more complex. I'll take a look when I have some downtime.
Ray Miller
Ray Miller 3 yıl önce
Totally agree with your last line, this tech will grow and change. I can imagine a flywheel storage system used on a space station, or energy platform in space, the only bearing loss would be due to gyroscopic correction due to a low to no gravity environment, and would not need a pressure vessel to maintain a vacuum. A guarded high speed flywheel with enough mass could potentially provide stored enough power for all kinds of uses in space, or anywhere really. It’s interesting to hear that this is used in power grids already, that I did not know.
Jonathan Yıl önce
This shit would never be used in space
Arend-Paul Spijkerman
Arend-Paul Spijkerman 3 aylar önce
If you use a flywheel in space you probably need two .. that counter rotate. Because if you spin up the flywheel the space station will start to spin in the other direction. Or if you spin down the flywheel by using its energy the space station will spin up also. The ISS space station actually has four 100kg or 220pound flywheels that act as gyros the "Control moment gyroscopes" .. they spin at a constant speed of 6600 rpm .. and if they rotate them the space station also rotates. So that way they can control the position of the space station without using fuel. Of cause a flywheel for storage will work against the gyro's i guess making them less usefull. Makes you wonder if the Control moment gyroscopes will generate power if you spin them down.
n00 dles
n00 dles 2 yıl önce
I forget the name of the dam but there is one in Australia that Richard Hammond checks out and it has the biggest most impressive series of flywheels I've ever seen, powered by water (obviously) being shot into cupped metal scoops on a ring. It's very very dope.
Jamie K
Jamie K 3 yıl önce
An interesting use of flywheel to store energy in motorsport is the KERS(kinetic energy recovery system)of the Nissan GTR LM. It was planned to have a flywheel that would spin at 60000rpm(47000G of acceleration for the outer edge of the flywheel) encased in a vacuum chamber, it is connected to an epicyclic gearbox which is then connected to the rear wheels. During braking it would spin up, and deliver 700 horsepower when needed. en.wikipedia.org/wiki/Nissan_GT-R_LM_Nismo
Mark Pendragon
Mark Pendragon 2 yıl önce
The recent discovery of a room temperature super conductor should be a game changer for flywheels. Assuming that the very high pressure required does not add too much weight. I wonder if putting the superconductor in the flywheel itself could mitigate this?
VoidGap Yıl önce
Makes me wonder what a graphene based fly wheel would be like. Good video.
TeslaKaniv 3 yıl önce
As a kid I read a (russian) book "In search of energy capsule" by Nurbej Vladimirovich Gulia. He used first principle approach to energy storage. Most of this book was about flywheels. It had a great impression on me. There is 2013 reprint with ISBN: 5-93196-591-2
MINJAE KIM 3 yıl önce
TeslaKaniv hello tesla
MINJAE KIM 3 yıl önce
You smell like genious. TESLA
V8Snail 3 yıl önce
@MINJAE KIM *genius
S Singh
S Singh 3 yıl önce
QUESTION. Could Flywheels be adapted to work with micro hydro applications? Using water pressure to spin up a flywheel that has pelton cups on it? The idea is similar to a pottery wheel where you don't have to kick the wheel all the time, just every so often to keep speed. I would think if you go a flywheel going and then piped in water, even lower pressured water, the "kicking" would keep the momentum of the wheel going.
The Devils Advocate
The Devils Advocate 3 yıl önce
This is so interesting! So basically the technology exists to where they can be used as capacitors but due to material technology constraints, we cannot use them for anything smaller than industrial/commercial applications. So the challenge is to make everyday energy usage more efficient, or to find better materials technology. I am excited for the future. It seems like the Earth is coming into a technological renaissance again with quantum computing and energy technology.
petezzzz 2 yıl önce
Wow. One of the most concise and informative videos on the Internet. Thanks!
HiltonBenchley 3 yıl önce
Now I'm wondering, with the newly discovered flash creation method, what progress there has been in incorporating graphene into metal and composites. Steel and tungsten carbide contain carbon, but I'm wondering if graphene can be incorporated to supplement their physical properties. I expect it is being worked on.
Marco Roepers
Marco Roepers 2 yıl önce
Very interesting video, very well explaining modern usage of flywheels. Another old way of storing energy mechanically is the use of springs. Is this also researched?
rcdieselrc 3 yıl önce
The crankshaft converted linear motion to rotary. The flywheel reduced the effects of torque impulses.
Cameron D
Cameron D 3 yıl önce
Your half right............The crank shaft does indeed convert the motion, but the flywheel takes the engines torque pulses and delivers them to the drive train in a smooth and controlled fashion. If the engine was directly bolted to the transmission, driveshaft or torque tube the vibrations would damage and destroy even the most robust drive train components over time. I guess you could think of an engines flywheel like an electrical capacitor. Now a days, dual-mass flywheels take this a step further in manual transmissions as weight/efficiency is now a major factor and durability is reduced in favor or fuel economy. Torque convertors have all but eliminated the torque pulse problem in automatic transmissions due to their fluid coupling drive. The engines harmonic balancer does the same for the auxiliary components, and eliminates the harmonic hum/oscillation of the belt and it's components when running.
Fascist Pedant
Fascist Pedant 3 yıl önce
@Cameron D The converter IS the flywheel, it's mass negates the need for a separate flywheel. Modern converters also lock-up once the vehicle gets up to speed eliminating any effect of the fluid coupling. The harmonic balancer is to reduce oscillations in the twisting of the crankshaft.
TdrSld 3 yıl önce
Wrong the "Flywheel" does not smooth torque impulses, that's the joke of the harmonic balancer at the front of the crank. and only manual transmission cars (a dying bread in the US :( ) has a true flywheel, all automatics use a flex plate of some sort. The torque converter acts as the rotational mass in automatic cars, the flex plate it there to hold the starter ring (some dodge have the starter ring on the torque converter) and allow flex between the crankshaft and input shaft that's inside the torque convertor
rcdieselrc 3 yıl önce
@TdrSld the harmonic balancer dampens vibration in the crankshaft
Azrul Nizam
Azrul Nizam 3 yıl önce
Chris Russell torsional vibration damper/harmonic damper with rubber insert is a device to control crank vibration and resonance. “90 deg” thing you talk is secondary order vibration. It’s occur twice per crank revolution due to the cosine effect of the rod and crankshaft. Inline-4 engine with a flatplane crank eliminate this vibration via balance shaft
Darthmufin 2 yıl önce
Something that does not appear to be talked about much on youtube is mechanical energy in the form of clockwork storage. Such as using an electric motor or human operation to wind something with very high potential energy while connected to an electric motor. It's a neat way of storing energy and i've only found a few videos on youtube actually using this function, otherwise it's just mechanical to mechanical like a wind up toy, not using the stored mechanical energy to turn a generator shaft.
Lukegear 3 yıl önce
Another amazing video on a super interesting topic! Keep up the good work you will surely grow much more :)
MrAaronvee 2 yıl önce
The entire Paris telephone network has used a flywheel energy back-up. However, the possibly devastating effect of its failure meant that it had to be kept underground within a large block of concrete.
Sedan Smith
Sedan Smith 3 yıl önce
I always wondered if the rotating doors on the big buildings were producing energy.
Zeb McCollum
Zeb McCollum Yıl önce
They’re so hard to push because they are hooked up to a gearbox driving a flywheel.
ClayZ 2 yıl önce
I remember reading about flywheel powered buses in Popular Science back in the seventies. I thought it sounded like a great idea.
Pink Freud
Pink Freud 2 yıl önce
Wow! 10 hours of spin for the flywheel at idle! Imagine how much better it would have been if they vacuum-sealed the flywheel's chamber instead of filling with H2!
hunter wilk
hunter wilk 2 yıl önce
Some (if not most) of the energy you'd gain by using a vacuum would have to be used to create and maintain that same vacuum. There was probably a cost-benefit analysis that said h2 is the best compromise between vacuum and normal air.
Mechanical Mike
Mechanical Mike 3 yıl önce
I had never heard of a gyro on a bus, but this video sparks some thoughts. First off, what effects the gyro would have on the bus itself, I presume since the flywheel was vertical, it shouldnt have affected steering much, but what about tipping, I would sure think that it would have stabilized the bus from tipping? Does it have less roll while turning? Another thought was - maybe a direct coupling with a clutch through a transmission? Or would the losses through gearing be more than that of a motor/generator and traction motor? Your thoughts?
Mick von Bornemann
Mick von Bornemann 3 yıl önce
For flywheel batteries to store a lot of power would require a huge amount of mass I assume, wouldn't that extra weight cancel out any advantage?
TimMcHavoc 3 yıl önce
The M1 series MBT the Abrams use two, maybe three gyroscopes to give it the ability to lock on a target and fire while on the move over most any terrain. At least it happens so fast you wont realize you were vaporized by a sabot round going a mile a second. Now antitank wespons use gyroscopes to hit armor from the top at its weak point.
Operator 801
Operator 801 2 yıl önce
The flywheel speed is effectively a non-issue if you use a regulated system such as a flyball governor. These systems exist specifically to enable enably flywheel storage across a wide range of energies and keep them operating at a very narrow powerband. Virtually all of the issues you mentioned would be completely solved with sufficient flyball mass and tuning.
Vincent Sullivan
Vincent Sullivan Yıl önce
If a flywheel of fixed geometry is rotating at a constant speed it is storing a fixed amount of energy. If you want to put more energy into or get energy out of a flywheel its speed MUST change so regulating the speed is the one thing you DO NOT want to do! I suppose you could design a trick flywheel with variable geometry that would spin at a constant speed and accept or release energy by changing the location or the rotating masses. At high energy storage they would be far from the centre of rotation and at low energy storage they would be close to the centre of rotation but the complications of doing this would seem to make it impractical in practice. I think perhaps you misunderstand the the function of a fly-ball governor. It is designed to regulate the AVERAGE speed under varying loads. The instantaneous speed of the engine/flywheel will still be varying depending on the part of the operating cycle the engine is at. The flywheel will be speeding up a bit during the power part of the cycle and slowing down at TDC/BDC assuming a steam engine or during Exhaust, Intake,and Compression strokes assuming an Otto cycle internal combustion engine.
Tyler Stewart
Tyler Stewart 3 yıl önce
New Mind. You always explain these topics in the best way. Thank you. Hope more subscribers find you. You deserve it.
Wade Brewer
Wade Brewer 3 yıl önce
Incredibly interesting. Thank you for the share, research and much effort in research in assembling this video.
Tom Cool
Tom Cool Yıl önce
What if every household had a flywheel - garbage can sized capacitor in the basement of every house? The capacitors could be linked together to capture lightning strikes that happen to towers on a mountain or something.
TheCarMan 2 yıl önce
The spinning mechanical battery in a bus or other vehicle is essentially a gyroscope, and a massive one at that. Spinning at speed over the course of several hours (from charge to charge) should eventually cause the vehicle to list as the earth rotates. It's the same principle that keeps the earth's axis always pointed towards Polaris as it orbits the sun. It wants to keep its axis aligned to whatever direction it had when it started spinning, but a rotating Earth will keep reorienting the vehicle.
Brian Su
Brian Su 2 yıl önce
Another BIG advantage is flywheels can run on either AC or DC thus eliminating efficiency losses in converting between them :)
Collin Smith
Collin Smith 3 yıl önce
Excellent video! Really impressed with the quality of your content and happy to be a new subscriber! 👍
John Slovensky
John Slovensky 2 yıl önce
Once we have high temperature superconductors and high strength/weight graphene flywheels these designs will be able to exceed the energy density of chemical batteries for much less running cost. Exciting stuff!
ARBB 3 yıl önce
Very nice. Besides mechanical batteries, a good topic is the exploitation of the natural batteries in our ecosystem, such as lakes or rivers. Brazil uses these widely.
Strothy2 3 yıl önce
Not only Brazil in Norway they literally generate almost all their power on that way...
AKAtheA 3 yıl önce
divorcedme I would suggest you look at the actual power output of one of those and compare it to the cost of keeping it running. Then look at virtually anything else that's a viable power source...Also, fish tend to migrate in rivers. Water wheels and turbines make this rather difficult for them.
LimaVictor 3 yıl önce
You gotta keep track of the difference between storage and generation. Some water based accumulators exist, but the energy density of those is pretty low. Hydro-electric generation is a very effective power source, but can of course only be used in countries with big powerful rivers. China has a lot of those. The netherlands... not so much. We have one or two small hydro powerplants that are more symbolic than effective...
Doug Mcdonell
Doug Mcdonell 3 yıl önce
@LimaVictor - China also has 40,000 small hydro installations, there is no need for big powerful rivers.
Calle Silver-Granhall
You mentioned the NASA flywheel system. I think it's worth mentioning the other space use for flywheels, reaction control. Using flywheels for energy storage in space or other low friction environments must present it's own set of challenges. Perhaps solved by symmetric configurations for example.
Wes Johnston
Wes Johnston 3 yıl önce
Back in the 1970s Accuray (now ABB) used 400hz power for a process control system called 1180s. To get 400hz we had a motor generator that ran at 3600 RPM and make 400hz out the other side. It would survive momentary power dips due to the rotating mass.
Cyan Blackflower
Cyan Blackflower 2 yıl önce
Although I've known about the application of inertial and potential physics since I was a kid, or more accurately I've known of the existence of this branch of science, I am impressed at how refined and varied the apps have been developed to, with emphasis on how a lot of these innovations outlined here, which I have only recently become aware of, have actually been designed a long time ago, becoming more effective as chemical / engineering over time picked away at "friction / resistance" bit by bit...(I wonder if the police are aware of the magnitude and persistence of some of these machines "Resisting Arrest"?) I imagine that these mechanical, or as I like to call them - Inertial Batteries, could make a major role and innovation increase, if and when human industry manages to move and base itself into deep space, such as the outer solar system at least...or hopefully beyond. Super low temperatures within a degree or 2 of zero Kelvin, the vacuum of space and practically Zero gravity, seems to me to be a perfect environment for this, and one where it would certainly be needed to assist any people who may be living and working in space. A fascinating, and exciting topic. Great video. Much thanks.
InflatablePlane 2 yıl önce
There were a few launching roller coasters that used a flywheel energy storage system. The coaster was launched using a cable and winch. The winch would clutch to a spinning flywheel and start the launch.
Eliot Francis
Eliot Francis 3 yıl önce
Thank you for this very educational video. For my home, I plan on geothermal energy coupled to a flywheel for all my electrical needs. This is my vision for the future.
Flower_Tower 3 yıl önce
Could/Should be for the world imho
diGritz1 3 yıl önce
I worked on one of these years ago but I could never breed the hamsters big enough or build the flywheel small enough to be effective.
Hennie Odendaal
Hennie Odendaal 3 yıl önce
forgot to put them on roids
markspc1 3 yıl önce
You should put "Nobel prize laureate Dr. Al Gore" to spin the wheel !!!
Just A User
Just A User 3 yıl önce
You could do the same thing egypt has done and use humans in your flywheel. They used human driven wheels to move a disk and cut stone blocks with it. Just like climing a ladder, but the ladder is infinite.
OverEnergized 3 yıl önce
New technology and genetic engineering now have hampsters you required.you missed out by half a year.sorry I've now patented this new powerful species but I would be happy to have you work along side with me for the domination of the world of power
Erik Schiegg
Erik Schiegg 3 yıl önce
I like the flywheel. Build the batteries into the flywheel (CC). For vehicles, e=m*v². A "giant pedulum clock generator" with some hundred or thousand tons of weight could also store large amounts of energy anywhere with highly dynamic availability. Solar raw heat could be used to lift the water by evaporation after first use of the steam. Just let it condense at desired height.
StraightEdgeHippie 3 yıl önce
I've always wanted to build a tricycle that used a combination of flywheel energy storage and an infinitely variable transmission
erikssonown 3 yıl önce
There is a magnetic bearing type that in theory combines the best of passive and active magnetic bearings called electrodynamic bearing, that uses a special configuration of permanent magnets and copper to stabilize itself through eddy currents. Here is a link to a demonstration video: trvid.com/video/video-2R4QQmCY4JU.html Here is a short Wikipedia page: en.wikipedia.org/wiki/Magnetic_bearing#Future_advances Thesis on the theory/company site: www.magnetal.se/TechnologyPhD.html
James Boyd
James Boyd 2 yıl önce
Combined with chem storage, a power manager could coordinate 3 sources (chem, FES, grid) to smooth out renewable energy grid. This could be done at household level, all the way to municipal etc.
kurt sanches
kurt sanches Yıl önce
I think you should mention the century old technology of mechanical watches, they are the most common thing that uses this thing and still relevant and still in existence of you the present day. You should also talk about the Murphy's Law, which most mechanical thing suffers the most.
ryanburbridge 3 yıl önce
Awesome man so glad your still at it! Been busy with other things lately but when i get time i always look for one of your videos. If you keep this up i see no stopping you! To the Top my friend! Have you thought about doing a video introducing yourself? Or do you plan on staying in the shadows. Heck it’s worked for AvE! Lol it almost turns into its own thing. Just wanted to stop by and say hi
Lifecraft 3 yıl önce
Flywheel generators are widely used for short-term emergency power up to about one minute when emergency diesel generators have ramped up. They keep operation-theatre-lights from flickering and servercenters from crashing. Also, turbines in classical powerplants are huge rotating masses that slowly bleed off energy and are sometimes used to power emergency systems. Only those things are not super-efficient and you can't really use them in vehicles. Otherwise its a well-proven and used technology.
Fauzi Rahman
Fauzi Rahman 2 yıl önce
They've got these huge flywheel batteries at the data centre which stores the server "cloud" that the organisation I work at host with. Basically in the situation of a power outage, these flywheel batteries kick in instantly to provide power. However the data centre uses so much power that it'll be drained completely in about a minute or less. It provides enough power just to give the diesel generators enough time to start up and provide backup power. I wish I can use a small version of these at home as battery storage but I think they only come at high capacities.
Asif kaka
Asif kaka 3 yıl önce
i did not even know something like this even existed before this video thank you for sharing this kind of information with us.
The Survivalist
The Survivalist 3 yıl önce
Wouldn't this work far better in space, say 10 to 100 times better, with limited micro gravity! Once spinning it should not stop over time, unless all the energy drained from it. But once it is spinning it will always be there if not used!
Peter Friede
Peter Friede 3 yıl önce
Thanks! Finally I know how modern cars use energy from braking. I always wondered about that!
MadVulcan 3 yıl önce
I'm intrigued by the concept but I'll stick to my Aluminum batteries thank you very much. I'm not dismissive of the Fly Wheel, it has a place in energy storage but I don't think mechanical batteries is the philosophers stone one size fits all solution. I envision a divers options of energy production and storage from Coal to the Atom, from Lithium to the Fly Wheel all working together.
Victor Sandall
Victor Sandall 2 yıl önce
I recall hearing, many years ago, that the French telephone system used spinning devices to store energy (kinetic) - I would suggest as a power failure standby back-up.
MrManiac3 3 yıl önce
Another way of doing it is by having a pulley system in a tower. You have big weights that just get hoisted up by a generator motor when the power is on, then when it’s off, discharge the weight and let it sink to the ground, or further if you want. I’m not sure which is better, more reliable, more efficient, etc. but it’s another way you could do it.
CNCmachiningisfun 3 yıl önce
Yup, I want to have a go at making something like that. Perhaps starting small, with a 1 ton weight, raised to a mere 5 metres.
Gregory Mirsky
Gregory Mirsky Yıl önce
Did they consider a gyroscope effect - the Coriolis force? If the flywheel of significant mass rotates rapidly, a significant Coriolis force makes the vehicle jump at turns.
Llewellyn Patrick
Llewellyn Patrick 3 yıl önce
Excellent article - really informative. Many thanks.
How Wonderful :)
How Wonderful :) 3 yıl önce
This system has been used in the 60`s and 70`s in mechanical watches but were replaced by the invention of quartz but you must give it a nudge at least once a day!
Sjakie van de Chocolade Fabriek
12:48 So you actually used 1m as the radius of the flywheel in stead of 0.5m to calculate the Mach number (at see lvl) of the outer surface. So the Mach number should be around 5.5. That's still fast though.
Andrew Delashaw
Andrew Delashaw 3 yıl önce
@Brandon Tseng New to TRvid, huh? Posting a comment directed to the channel creator does no good if it is buried in another comment thread. Why would you post that under this thread?
Sjakie van de Chocolade Fabriek
@Brandon Tseng I do not make any youtube video's.
CE 3 yıl önce
I see mistakes happen at sea as well.
Kas b
Kas b 3 yıl önce
@Andrew Delashaw except the channel Creator clearly saw OPs message lol
reisele1980 3 yıl önce
How do the velocities within the flywheel affect its orbital mechanics?
Eddy Brevet
Eddy Brevet Yıl önce
I think you could increase the efficiency of an electric vehicle by turning the weight of battery into momentum, by spinning battery
John Farias
John Farias 2 yıl önce
Thank you so much and was a very good episode never looked at the flywheel like that how could anybody give this a thumbs down so well put together some people have no respect