Radiant Cooling with Liquid Nitrogen

[nospam]

The OP didn't escape my kill-file - seems to be working as intended.

Unfortunately this invention depends on the speed of dark and no one has found a way to measure it yet.

[.p.jm.]

I tried, but every time I turned on a light to see my watch, it went away.

Damn.

[The_Giant_Rat_of_Sumatra]

That answer would be "nearly all the energy the final product has to give". ;-P

You are talking to an idiot. He does not know ANYthing to remember.

LN2 for cooling is likely best done in a sealed system.

The folks that do it raw only get working circuitry up until the point that the condensation(s) create a shorted element and dip the power, or short a logic line and terminate proper function that way.

[.p.jm.]

More, actually, if you assume a less than perfectly efficient creation and transport process.

No, it's too difficult to reclaim IOW bring back to a liquid state. In a closed loop, other working fluids are easier to handle.

The various LN2 equipment I've seen has always been 'OPEN LOOP'. There's quite a bit of it around. Hell, even some fancy restaurants use it in the kitchen.

[Sum Ting Wong]

Despite the group list, you spelled duck tape incorrectly for this topic, and the nature of your response. :-)

Trust me, I have *tapped* a lot of ducks over the years, and sometimes I didn't even have the straw.

[Sum Ting Wong]

You spelled reigning wong. :-)

[TheGlimmerMan]

...of each of the digits of your fingers if you touch it!

Good answer. Everything at that low temperature would be below a phase change point compared to what we call our comfortable ambient (what?

72F?), so would definitely condense as liquid or crystalline solid on the surface of the "wessel" the LN2 is in.

So, what do the other inert gasses look like in liquid form? Like xenon, for instance.

What would the resistance be of a fluorescent type lamp tube filled with a liquid instead of a gas? Would it still flow like a plasma?

It would not longer produce photons, and simply conduct?

I know it would e hard to do as the tubes are very thin.

[OutsideObserver]

Don't know much about vacuums, do ya, boy?

[Sum Ting Wong]

Don't forget the ball cap with the fan in it.

[.p.jm.]

I'm going to quietly walk away from that one, and never look back.

[Steve]

I was refering to the outside surface of the envelope...... be it a glass tube, or steel or whatever. For it to be effective, its going to have to be below dew point.

[Dirk Bruere at NeoPax]

You would get LOX preferentially liquifying. So you'd suffocate in the remaining N2 shortly before your solid frozen feet exploded in a pool of LOX and incinerated you.

[Sum Ting Wong]

Enough posts like yours and we could start incrementing its creepage.

[100WattDarkSucker]

You need special lighting for that.

[VioletaPachydermata]

Suck-it-up Green is people!... people!...

[The_Giant_Rat_of_Sumatra]

Of course, but note that I included NONE of the requisite for stealing what remained in the Nitrogen.

Of course it was far more than was actually removed, so at least twice that number. Realistically far more than that, considering containment costs, both during manufacture and for subsequent storage.

Can be tallied as just the losses or as the cost to keep it *all* (or nearly all) cold.

It both ends up being a tally for losses over local ambient or other factors that figure into a given material handling system.

Thank God for the power of the vacuum, and a good, small neck weld. :-)

No, I am not related to the Tin Man. :-)

[.p.jm.]

Wow, that would kinda suck.

[The_Giant_Rat_of_Sumatra]

I would use it to cool a less evaporative liquid, like Fluorinert. A DuPont product referred to as a dielectric fluid. It also happens to have very good thermal properties. I think it may begin to gel at just below -101°C.

Great thermal transfer medium. Even touted as such.

I'm gonna get an aquarium full of it, and put a PC and a display in it under operation, then overclock the piss out of it.

Or get two thin aquariums and put fish in the background.

Or get heavily oxygenated perfluorocarbon and put the fish in the same tank.

"Actin' funny, but I don't know why... 'scuse me, I got fish to fry..."

At over $400 for a 0.75 liters, it will not be a cheap proposition.

I bet it would sell at auction for a profit though. Have to use the WLAN on it, and see how that works immersed!

[Sum Ting Wong]

I just knew that would do it. You didn't even get to the straw line...

[.p.jm.]

Too busy walkin' away.