Any Chemists Here? Know One?please Come On In!

[SciManAl]

ur ideas are good but not practical to typical oc'ers.

my ideas are very practical i think... it would allow for completly silent cooling, extreme performance... and it would work even when your comp turned off... your stuff would stay cold all the time..

ok so ur gonna have LN in a sealed system. so if the LN is heated up it goes to gas right? is ur system gonna withstand the pressure?

and how r u gonna convert gas nitrogen back to liquid state?

sorry if i didn't read the details but i get ur gist of the design.

well firstly the LN will try to go Gasous yes... the system will be at extreme pressures, it will be a stainless steel pipe that is about 1/2 inch diameter, and then is surrounded with a steel block that will have the pipe embedded within... the pipe will hold the pressure, and pass what pressure it can't handle over to the steel block...

The safetly mechonism is a simple pressure valve, it will keep it from exploding, but that would only happen after extremly prolonged use ie a few solid years of running, or trying to dissapate the heat generated by the shuttle, in which case the nitrogen will harmlessly rejoin the atmosphere from whence it came...

How i am going to convert the gas you ask?? the gas will naturally turn into a liquad after extreme compression as the molecules have nowhere to move, and it turns to liquid... it will however stay as a liquid...

As for not reading the posts, no prob, hehehehehe i don't do that...

[james_bond_rulez]

you could first patent the idea first

i dont think its wise to go into mass production just yet since there is no really such need for "extreme cooling" like ur system.

ppl want economical yet not to complicated and maintence-needy cooling system.

but then i could be wrong and u could end up a millionare.....

who knows?

[SciManAl]

you could first patent the idea first

i dont think its wise to go into mass production just yet since there is no really such need for "extreme cooling" like ur system.

ppl want economical yet not to complicated and maintence-needy cooling system.

but then i could be wrong and u could end up a millionare.....

who knows?

yeah the patent already exists... it is a bummer, but I will still produce my version of it... (defence contractor kinda patent... ) It is maintience free... umm yeah i doubt i will be a millionaire... but i think i will at least make some KLDB members happy...

PS KLDB means KazaaLite Discussion Board... hehehehe

[james_bond_rulez]

so why r u looking for alternative cooling element? LN sounds good to me.

unless LN is expensive and ur looking for something cheaper

[SciManAl]

so why r u looking for alternative cooling element? LN sounds good to me.

unless LN is expensive and ur looking for something cheaper

LN sounds good to me too, however i am also looking at a much cheaper more available coolents like R138A... LN in its Liquid form is incredibly hazardous too... not that R138A isn't, but it won't take your arm...

[james_bond_rulez]

well i'll stick with the good'old fans for now they are noisy but cheap

and who cares about noise when ur in a lan party where everyone is tryin to shoot the crap outta ya?

[SciManAl]

well i'll stick with the good'old fans for now they are noisy but cheap

and who cares about noise when ur in a lan party where everyone is tryin to shoot the crap outta ya?

lol good point... hehehehehe

[lynx]

Couldn't be bothered to read all the previous 6 pages, so this may already have been mentioned.

Alcohol.

Very low freezing point.
Lower evaporation point than water.

Of course, this could be why they use it in standard heat pipes.

Methanol - expensive, boiling point 65C, poisonous.
Ethanol - cheap, next lowest at 78C.
2-Proponal - unknown price, 82C.
1-Proponal - unknown price, 97C, possibly carcinogenic.

Propanol is often used as the solvent in tape head cleaning kits, but it is likely to be a mixture of the 1- and 2- varieties, so it is probably not suitable.

You could try different ones till you find the one that works best, they all have a higher evaporation rate than water which is the requirement for a heat transfer process.

Btw, the lowest boiling temp is not necessarily the best, your heat pipe will not work if the transfer agent is constantly in the vapour state.

[_John_Lennon_]

Well, wait, err, meh, ugh, guh, umm.

I just dont get it here, the heat energy here, the Liquid nitrogen takes in the heat energy, and tries to expand as a result, which in a normal envoirnment would cause it to loose its cool tempertaure (take in Terminator 2, it dissipated after being so close to the molten metal.

But how does it get rid of the heat that it has, if it cant expand? Where does the heat go?

[james_bond_rulez]

it expands until the pressure is so great it turns back to liquid again, heat is given out in the compression process

i doubt it'll come to that as sciman stated



and no alcohol would suck as a coolant. u want some very cold like LN. you wouldn't want the pipes to become pipebombs do ya?

alcohol as coolant lol... that's rich