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Explosive Fun with a Capacitor Bank Answered

Watch a 24kj capacitor bank as it discharges through various objects. Maniacal laughter follows each one and a slo-mo montage finishes it all up.



via Make blog

Discussions

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junits15
junits15

12 years ago

where did u get all those caps!? and how did u charge this?

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Plasmana
Plasmana

Reply 12 years ago

I have that same question too...

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killerjackalope
killerjackalope

Reply 12 years ago

Plasmana, can you remember the equation to get the amount of joules from the capacitance and voltage? I can't... Also my guess would be collection over a few years unless they have some cash lying around, I knew a guy that had five one farad and pretty high voltage caps on his shelf in his room...

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alexhalford
alexhalford

Reply 12 years ago

E=1/2(V2C)

E = Energy in joules.
V = Voltage in volts.
C = Capacitance in farads.

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killerjackalope
killerjackalope

Reply 12 years ago

I got the answer but thanks anyway.

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Kiteman
Kiteman

Reply 12 years ago

Is this what you're after?

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geeklord
geeklord

Reply 12 years ago

too many complex formulas, hurts the mind of and eith grade algebra student..... X(

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killerjackalope
killerjackalope

Reply 12 years ago

dead on, cheers kitington joust...

yes I did just change your name to that... I do it a lot granted it sounds better when said...

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guyfrom7up
guyfrom7up

Reply 12 years ago

I"m going to say ebay and probably charged through several MOT's.

Lets see, there's 100 capacitors, 10 sets with 10 capacitors in each set in parallel. It's max charge is 4500 volts at 2400uF

Since electrolytic capacitors don't go that high of a voltage, I'm going to assume that the 10 sets are in series. That means that each capacitor must be rated at 450 volts and 2400uF

lets see if I can find an ebay link to a product like that (probably sold in bulk at 100 caps.

http://cgi.ebay.com/450V-2200-uF-High-Voltage-Electrolytic-Capacitor_W0QQitemZ280270505814QQcmdZViewItem?hash=item280270505814

He probably bought it somewhere else, or a listing that was a good deal earlier (like a one time sale, not a store).

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junits15
junits15

Reply 12 years ago

wat is a MOT?

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guyfrom7up
guyfrom7up

Reply 12 years ago

Microwave oven transformer You find them in microwaves (LOL) They output about 2000 volts at a couple hundered milliampe (very deadly transformers)

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junits15
junits15

Reply 12 years ago

cool

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thermoelectric
thermoelectric

Reply 12 years ago

I soo need to find the money for a major cap bank to blow these myna-bird pests out of the sky, I hope I can make a coil gun that won't explode being hooked up to this :-)

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YummyPancakes
YummyPancakes

Reply 12 years ago

Ooh, I see it now... I'm about ready to use my favorite onomatopoeia.

BAKKATOWWWWW!!!

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YummyPancakes
YummyPancakes

Reply 12 years ago

Now I'm seeing a flying ball of plasma hurdling at a board of oak just outside my garage... God, am I pyro.

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mweston
mweston

12 years ago

Through various objects... I wonder what other various objects that could discharge through... obnoxious siblings maybe :-P

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samshoes
samshoes

Reply 12 years ago

Great idea.

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tech-king
tech-king

12 years ago

sigh. the power of the coilgun i could build with that bank.............

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Goodhart
Goodhart

Reply 12 years ago

Hmm, among other things ;-)

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YummyPancakes
YummyPancakes

Reply 12 years ago

<evil cackle>

MUAHAHAHAHAHAHAHAHAHA e+10649

</evil cackle>

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danlab
danlab

12 years ago

I had a science teacher with a much smaller version of this, try hooking it to a coil of heavy wire (probably need about 2 guage for this capacitor bank), and put an aluminum soda can in the center of the coil

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YummyPancakes
YummyPancakes

Reply 12 years ago

Good fun. BEEEEG sparks. I'm guessing it either exploded, sparked a lot, melted, or all three.

Oh, and did your cell phone/pacemaker/laptop survive it? Or did you not try it?

Of course you did... muahahahaha...

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geeklord
geeklord

12 years ago

this could kill someone right?

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geeklord
geeklord

Reply 12 years ago

not that i care...........:D

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LinuxH4x0r
LinuxH4x0r

12 years ago

ahh, fastmhz I remember him

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philgenius
philgenius

12 years ago

Your bus rails are sparking. Might want to look into that.

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starwing123
starwing123

12 years ago

Railgun, coilgun, Tesla coil, an much more. I'm wondering how much it cost

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roosta
roosta

12 years ago

discharge it through a HUGE ball of wire or steel wool. that would be damn impressive. youve gone big on the bank, now go big on the effects ;)

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Plasmana
Plasmana

12 years ago

Nice electrical explosions!