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Unread 05-03-2011, 18:10
theprgramerdude theprgramerdude is offline
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Re: Liquid Gases on Robot as coolant

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Originally Posted by Ether View Post
Yes way. Try it and see.

The energy stored in the compressed N2 tank is what causes the coolant to spray out.

This, in combination with other rules (see earlier post) will almost certainly disallow your idea.

But if it's in a tank, it's not going to be a coolant. I was picturing an open container, which, while dangerous, can only absorb energy and evaporate (similar to a heatsink, so this question confuses me unless it's for electronics which cannot be easily accessed), NEVER store it. So yes, theoretically it can store energy if the heat absorbed from the environment is not allowed to escape back in the form of N2 gas.

Compressed air, as I am led to believe, means compressed air, not a liquid form of a gas. The rules on de-pressurizing gas would be incapable of being applied.
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Unread 05-03-2011, 18:23
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Re: Liquid Gases on Robot as coolant

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Originally Posted by theprgramerdude View Post
But if it's in a tank, it's not going to be a coolant. I was picturing an open container, which, while dangerous, can only absorb energy and evaporate (similar to a heatsink
Are you saying you want to submerge your circuit board in an open container of liquid nitrogen?


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Unread 05-03-2011, 18:30
theprgramerdude theprgramerdude is offline
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Re: Liquid Gases on Robot as coolant

No, although I suppose someone might be capable of doing that. I was rather suggesting that pouring a rather minute amount of LN, or a similar supercooled, non-toxic gas onto the circuitry, and letting it evaporate in place of the circuits heating up, is technically the only feasible way to keep the circuitry cooled without completely enclosing the system, and thus removing most of liquid gas's benefits.

I'm not advocating doing any of this, aside from spraying it down with compressed air every so slightly before a match if circuit heating is a real issue, due to the extreme dangers of burning if it's mishandled and the usage is done poorly; just saying it could, ever so possibly, be legal.
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Unread 05-03-2011, 18:32
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Re: Liquid Gases on Robot as coolant

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Originally Posted by theprgramerdude View Post
I was rather suggesting that pouring a rather minute amount of LN, or a similar supercooled, non-toxic gas onto the circuitry, and letting it evaporate
Pouring liquid N2 directly on your circuitry will almost certainly destroy it.


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Unread 05-03-2011, 18:55
theprgramerdude theprgramerdude is offline
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Re: Liquid Gases on Robot as coolant

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Originally Posted by Ether View Post
Pouring liquid N2 directly on your circuitry will almost certainly destroy it.

Most likely. It's why I mentioned using canned air and spraying it upside down prior to a match, rather than storing it on the robot.
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Unread 05-03-2011, 19:02
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Re: Liquid Gases on Robot as coolant

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Originally Posted by Ether View Post
Are you saying you want to submerge your circuit board in an open container of liquid nitrogen?

What could go wrong!
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Unread 05-03-2011, 19:14
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Re: Liquid Gases on Robot as coolant

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What could go wrong!

I believe that's supposed to be:

What could go wrong... go wrong... go wrong...


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Unread 05-03-2011, 19:17
nighterfighter nighterfighter is offline
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Re: Liquid Gases on Robot as coolant

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Originally Posted by Ether View Post
I believe that's supposed to be:

What could go wrong... go wrong... go wrong...

Well, at least it isn't electrically conductive.

Sure, it might make everything brittle and shatter, but at least you won't have a short!
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Unread 05-03-2011, 20:40
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Re: Liquid Gases on Robot as coolant

how is your electronic board heating up in the first place, nothing should overheat except perhaps a breaker, batteries can get a little warm too i guess.
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Unread 05-03-2011, 21:42
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Re: Liquid Gases on Robot as coolant

team 20 was actually packing ice on their motors (or i assume it was the motors) between the matches in the finals at BAE
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Unread 06-03-2011, 14:17
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Re: Liquid Gases on Robot as coolant

This wins this week's award for "Most Bizarre Thread".
Carry on.
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