1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Best Physical Means of Storing Kinetic/Mechanical Energy

  1. Sep 14, 2004 #1
    Meaning springs and such; what specifically is the strongest (in relation to size) device for storing this energy?

    Thanks
     
  2. jcsd
  3. Sep 14, 2004 #2
    a space shuttle.... before u break off the earth's atmoshpere try jumping off that thing.... and feel the POWER -in case u won't be hit by a heart attack first-.

    nothing is really comin' up to my mind but springs... u can make a very big one and a small one... if ur askin' about qualities then, it's ur choice because logically u can imagine anything!!!!!!
    if ur doing a project or something then try considering a gun's spring that fires the bullet when u trigger (Sniper Rifles are the best example)
     
  4. Sep 14, 2004 #3

    NateTG

    User Avatar
    Science Advisor
    Homework Helper

    It's unclear exactly what you mean by strongest. Here are some possibilities:
    Power Density (Power per Mass)
    Power Density (Power per Volume)
    Energy Density (Energy per Mass)
    Energy Density (Energy per Volume)
    Storage Efficiency (Energy out per Energy in)

    Do you consider a fast moving object to be 'energy storage'?
    Do you consider moving up to be 'energy storage'?
    Do you have a particular application in mind?
     
  5. Sep 14, 2004 #4

    krab

    User Avatar
    Science Advisor

    If you want portable storage, then flywheels would probably be best.
    If you can leave it in one place, just use gravity. Raise a heavy object to some high elevation. You can even make it a fluid, such as the storage behind a hydroelectric dam.
    But why would it have to be in mechanical form? Just use gasoline, and convert it to mechanical when needed.
     
  6. Sep 14, 2004 #5
    It needs to be mobile... and what I'm looking for is either the highest energy per volume or power per volume.
     
  7. Sep 14, 2004 #6

    NateTG

    User Avatar
    Science Advisor
    Homework Helper

    Pick one, you can't have both.
     
  8. Sep 14, 2004 #7
    Either meaning I don't know which one... so if you know one or both, that'd be great.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Best Physical Means of Storing Kinetic/Mechanical Energy
Loading...