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Forums
4hv.org :: Forums :: Electromagnetic Projectile Accelerators
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Fesability estimate

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coillah
Fri Mar 06 2009, 09:53AM Print
coillah Registered Member #1517 Joined: Wed Jun 04 2008, 06:55AM
Location: Chico CA
Posts: 304
How feasible would it be to use an EPA to accelerate a mass of 45kg to 13.4 m/s?

Im talkin in terms of stroke length, and power.

Would it be easier with a multi stage system?
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big5824
Fri Mar 06 2009, 03:06PM
big5824 Registered Member #1687 Joined: Tue Sept 09 2008, 08:47PM
Location: UK, Darlington
Posts: 240
not very....thats 4kj of kinetic energy, so with 10% efficiency (hard but possible) you would need a 40kj power supply.....expensive
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coillah
Wed Mar 11 2009, 07:14AM
coillah Registered Member #1517 Joined: Wed Jun 04 2008, 06:55AM
Location: Chico CA
Posts: 304
long stroke length as well?

10% efficiency is the top most people have seen in EPA design?
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Bjørn
Wed Mar 11 2009, 08:42AM
Bjørn Registered Member #27 Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
The target speed is so low that there are other simpler methods that can be used, like a winch.
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Steve Conner
Wed Mar 11 2009, 10:23AM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
For 13.4m/s you could even put it in a shopping cart and shove it down a hill.
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