Flywheel Energy Storage: Difference between revisions

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(Created page with "On flywheel: assume a 1 meter radius for simplicity, a flywheel in the limit of all mass on rim. Say 1000 kg wheel. E=1/2MV^2 - say it's spinning 2000 RPM = 33 rps (achievabl...")
 
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=Basics=
*The Use of a flywheel (Typically magnetically levitated, using an induction powered motor in either a hydrogen atmosphere or a vacuum to store, and release energy
*High Energy Density, Long Life, Ease of Use, Not many rare materials required
=Back of the Envelope Calculation=
On flywheel: assume a 1 meter radius for simplicity, a flywheel in the limit of all mass on rim. Say 1000 kg wheel. E=1/2MV^2 - say it's spinning 2000 RPM  = 33 rps (achievable readily) - then you have v=209 m/s so
On flywheel: assume a 1 meter radius for simplicity, a flywheel in the limit of all mass on rim. Say 1000 kg wheel. E=1/2MV^2 - say it's spinning 2000 RPM  = 33 rps (achievable readily) - then you have v=209 m/s so


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MJ
MJ
=OSE Work=
*[[Open Source 25kWh Flywheel Energy Storage Unit]]
*[[Open Source Universal Manual Power Source]]
=Internal Links=
*[[Amber Kinetics]]
=External Links=
*[https://en.wikipedia.org/wiki/Flywheel_energy_storage The Wikipedia Page on Flywheel Energy Storage]
*[https://www.youtube.com/watch?v=_QLEERYS5C8 A video by the youtube channel "New Mind" detailing the concepts history, science, and current stance]
*[https://www.youtube.com/watch?v=ROKDsDLD9Q8 A video by the youtube channel "Andlinger Center for Energy and the Environment" ] - good 50 min lecture
*[https://www.youtube.com/watch?v=Oo8iEL6SqgI A Ted Talk on FES]
*[https://www.youtube.com/watch?v=0q_XupVbfMo A video by the youtube channel "Exhibitions & Trade Fairs" ]
*[https://www.youtube.com/watch?v=7VtuX9UEk-k A video by the youtube channel "Justin Ellis" ]
*[https://www.youtube.com/watch?v=JlOaGE1b-9Q A video by the youtube channel "Michael Craner" ]
*[https://www.youtube.com/watch?v=767y5ViGurA A video by the youtube channel "Stornetic" ]
*[https://www.researchgate.net/publication/224160526_Losses_in_hybrid_and_active_magnetic_bearings_applied_to_Long_Term_Flywheel_Energy_Storage A 2010 Paper Titled "Losses in hybrid and active magnetic bearings applied to Long Term Flywheel Energy Storage" ]
*[https://www.mdpi.com/1996-1073/14/8/2159 An [[Open Access]] 2021 Paper Titled "Critical Review of Flywheel Energy Storage System" ]
[[Category: Energy]]

Latest revision as of 23:14, 6 November 2022

Basics

  • The Use of a flywheel (Typically magnetically levitated, using an induction powered motor in either a hydrogen atmosphere or a vacuum to store, and release energy
  • High Energy Density, Long Life, Ease of Use, Not many rare materials required


Back of the Envelope Calculation

On flywheel: assume a 1 meter radius for simplicity, a flywheel in the limit of all mass on rim. Say 1000 kg wheel. E=1/2MV^2 - say it's spinning 2000 RPM = 33 rps (achievable readily) - then you have v=209 m/s so

E= 1/2 *1000 * 40,000 = 20 megajoules = 20 megawatt seconds or driving your 5 kW generator for 4000 seconds -

That appears to be 5kW for one hour. Amazing! Take out inefficiencies, and you probably have 5kW for 1/2 hour. 90% generator eff, 90% transmission efficiency, 90% extraction efficiency, 10% power loss from friction - so 40% loss right there in rough estimate.

But, can we do a 1000kg wheel with mass-on-rim at 1 meter? That is huge. And how to drive it? With continuously variable transmission?

MJ

OSE Work

Internal Links

External Links

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