Why did flywheel energy storage never get popular?
>>53523413
Explosion risk
Power drain
Expense so it doesn't explode
Basically it is niche
>>53523413
It's not like it's hard to solve the energy crisis.
1. Go to fucking space
2. Get a big fucking turbine
3. SPIN The fucker like... ONCE
4. Collect free energy forever because of the lack of really.... any resistance.
There, fucking nobel prize son.
because of variable velocidensity
you see, when you expand outward on a rotating drum, the inertial frame increases radially, leading some components to be out-of-sync with other components in space/time, and thus they crack in half ; destroying the entire system
>>53523456
You failed college baby phys, didn't you anon?
>>53523413
Isn't flywheel the most common method of storing energy in KERS systems in Formula 1?
>>53523413
It is popular though. Theyre often used as UPS's until a dedicated fuel generator kicks in.
>>53523413
people are afraid of catastrophic system failure, and the dumb things don't have enough energy density advantage over capacitors in most cases.
(they do have pretty great power density though for doing things like quick-starting a generator, etc.)
in theory, flywheels made of wound carbon filament could have great energy densities, but people would rather throw research funds at shit like ultracapacitors, since they can be arbitrarily big or small and don't have to be kept completely stationary (or in a free orbit like your pic related).
>>53523456
nigger
>>53523413
There's still some loss due to friction and the bearings get hot as fuck.
Also the flywheel need to be too large compared to battery/capacitor storage systems, which are still large but smaller than flywheel systems unless you rotate them at speeds so hight hat you then need a vacuum for them.
battery manufacturers
>>53523413
I'm not sure where else they're used, but flywheels exist as KERS modules in formula one cars.
Kinetic Energy Recovery System. Basically the engine spins a heavy flywheel in some sort of evacuated chamber and when called upon, they can deliver like an extra 160 BHP to the wheels.
Pretty dope.
>>53523456
How do you get energy from the spinning wheel?
>>53525012
Heavy wheel spun up by exhaust gases or whatever. Wheel has magnets in it to act as a generator for a little electric motor that can give bursts of energy when needed.
>>53524950
What is pretty dope is they spool the turbos up with a similar system
>>53523456
Exceptional science, holy shit! Know what? We could use part of the energy that the turbine generates to... wait for it... spin the turbine some more!!!!! It'd be like exponential or some shit like that!!!!
>>53523413
Its cool as shit man.
But its very difficult to do right.
>>53523413
>flywheel energy storage never got popular
Internal combustion engines motherfucker. They use the shit out of flywheels as a form of mechanical capacitance. You don't get more popular than that.
>>53523413
>>53523456
Because the tradeoffs are too big. You either need a lot of speed which requires extreme strength in materials and brute amounts of rotational energy, or you need something with high inertial frame, which is a waste of materials and even the smallest miscalculation results in gyroscopic precession/nutation and it will spin itself apart (also, obviously, it's not practical to bring something heavy to space); whereas if you had simply had a combustive/fissive fuel or something sustainable like solar energy you could store more energy for a lot less material, lighter. Liquid hydrogen is literally 71g/L. Bringing a massive Aluminum flywheel into space would be several tons. Flywheel tech is the ultimate diy frontier though, with treadle lathes and whatnot.
>>53525588
oh my god
did we just invent
a machine of perpetual motions?
>>53526544
>is on g
>believes in perpetual motion
>>53523413
Volvo is going to put flywheels inside their future cars by 2020. It's making headways into the automotive industry because batteries are heavy, expensive, and a nightmare to put into production cars. A flywheel is a lot cheaper, significantly lighter (barely 100 lbs compared to over 500 lbs for lithium batteries and another 150 lbs for the motor), and are super simple to integrate into a production vehicle.
>>53526652
>is on /g/
>knows anything about science
kek
>>53523456
>>53523456
>>53523413
Because batteries work better.
KERS is used in some F1 and LMP1 cars though.
>>53526924
>/G/
>>53525122
So basically the only energy you will get out of it will be a direct result of the gases used to spin it up, and it will use most of that to keep itself spinning because the generator will slow it down.
>>53524346
This. We use them to prevent fluctuation in your induction ovens during fiber production
>>53527390
http://www.topgear.com/car-news/motorsport/nissan%E2%80%99s-1250bhp-le-mans-racer-explained
This motherfucker right?
>>53526331
Liquid hydrogen is not that great after you account for its volumetric energy density and the requisite mass of the cryogenic support equipment.
It only works for larger systems due to squared/cubed scaling.
>>53528576
wiki graph, though it doesn't appear to take oxygen size/weight into account for combustible stuff
>>53523413
>Why did flywheel energy storage never get popular?
What is internal combustion engine?
>>53527510
It wouldn't be constantly enabled, so it probably has a clutch in place so it can freespin without powering the generator.
>>53528897
>>Why did flywheel energy storage never get popular?
>What is internal combustion engine?
Something completely unrelated?
>>53528941
I'm fairly confident the number of ICEs built with flywheels is equal to or greater than the number of ICEs built without anon.
>>53528977
ICE Engineer bro?
Plz say yes, the ICE field is lonely.
Also flywheels not only store rotational energy IOT transfer to the drivetrain, they also help filter out the engines power strokes but increasing steady during power but keeping the engine turning during intake/compression/exhaust (assuming 4 stroke).
It's also how the engine is started in most cases via a toothed ring gear.
>>53529040
>>53528977
Niggers, they are talking about a flywheel-only device, not the spinny disk-thingy on the end of the bendy-metal rod shafty thingy.
Although why someone hasn't combined KERS with the engine's flywheel yet astounds me.
>>53529040
Sorry just a random anon with an understanding of how engines work. Also I'm sickened but curious at the idea of any 2 stroke engine with a big ass flywheel.
>>53529080
Anon they are one and the same. Your statement is akin to saying that a AA battery is not a battery because the conversation started with industrial scale lead acid banks. It's still the same thing, uses the same principles, has the same result, it's just smaller and purpose made.
>>53523456
Jesus Christ your fucking retarded
>>53529155
>Anon they are one and the same.
They meant a very specific application of the flywheel as a sole energy storage medium in a system. I can understand why they forgot that it exists in practically every modern ICE built, but I get where they're coming from.
In my opinion, flywheel hybrids >>> electric hybrids, but hydraulic hybrids >>> flywheel hybrids.
>>53523413
Compulsators exist.
https://en.wikipedia.org/wiki/Compensated_pulsed_alternator
Remember that gun that you could spin up in half life? That was a compulsator based energy weapon.
Got a flywheel system protecting my home. Expensive but in the long run cheaper than battery replacment ups.
>>53529268
I am considering putting one in my basement too but I'm concerned that it will blow up or that I'll blow it up somehow
>>53523413
> unused tech
Many data centers use flywheel UPS technology to cover building electrical load while the backup diesel generators start up.
>>53529283
Its a great system, only maintenance needed is replacing ball bearings every 25y. Got it 2nd hand from a military installation.
>>53529190
Hydraulic hybrids are painfully reliant on gravity. Otherwise they are GOAT tier.
>>53529334
You have to spin it down to replace the ball bearings obviously, right?
>>53529379
Yes. It can be bypassed for maintenance. They had a few more units, will most likely get a 2nd one when my budget allows.
>>53529415
how much power does it use just to keep it spinning at idle?
>>53523413
>>53529930
Listen, I like /pol/, don't get me wrong
But what do Jews have to do with flywheels?
![maxresdefault[1].jpg](https://i.imgur.com/PbQyHKU.jpg "maxresdefault[1].jpg")
>>53523456
hey anon, here another nobel prize winner
>>53529563
Not much. Good ones are sealed in a vacuum and float on magnets
