What about this idea?

[godspeed]

Hay,

Im going to start to make my own DD phase change system and i was just wondering if it was better to have the compressor at the bottom of the case or at the top?

Also what i was thinking of doing is making it a air tight case; so i dont have to have insulation. and then having the refrigerant go through the CPU first then NB then GPU then a Rad to cool the rest of the hard wear. look at attachment.

Last question, with sight glasses how do they take so much pressure? is there some way that you could get a bigger one or something along the lines of that so that you can see the flow of liquid more (because it looks really cool)

Hope you can help
Thanks

[Tonic]

Set compressor on bottom, in discharge line there's a gas form, which's flying to top,
it's better to help him :)

And discharge line must enter to condenser (this radiator) from top, liquid, thanks
to gravity, goes to bottom and must leave condenser from bottom

[godspeed]

so you think this idea will work? the rad at the top of the case is to cool down the whole case and hardware.

[Tonic]

Discharge line is very hot, it has temperature something around 50-60*C

I don't think it should cool the inside od case ;)

[gclg2000]

Your picture looks like your trying to make a triple head cooler or something...?

Plus "Air tight" won't work you will overheat your other mobo and PSU and etc...

Read the stickies.

[gkiing]

What you could do would be to have a single evap on your cpu, and then snake the suction line over the gpu/nb, you'd have to make some device so that it got really good contact with the suction line though, maybe like a copper block brazed to the pipe that would sit on the gpu.

[godspeed]

hay gkiing thats what i had in mind. but will it work?

[gkiing]

It will work if you insulate the suction line very well, and make sure that where it touches gpu and nb it has very good contact. Thick insulation will be the key to getting this to work.

[godspeed]

yea i was thinking of doing something like this:

But not so hard out, a much more simple design

[floshey]

Set compressor on bottom, in discharge line there's a gas form, which's flying to top

uuummm, in discharge line theres a gas from compressor -> condenser, which really isnt that long of a distance, and after the condensor the refrigerant condenses to a liquid, which means it will have a harder time going up than down due to gravity. For me it seems that having placed the compressor on top seems like a better solution. But i think there is a big difference in theory and practice, and in practice i do not think it really matters, but i could be wrong.

I'm not trying to correct you, just to understand it myself, so it would be nice if someone could explain the difference.

[JSU]

I think you could do this pretty easily. just use a txv and set the superheat to 20 degrees or so. (if you dont have a realy big compressor that is)

[gkiing]

It would be similar to that picture, but you would either have a 1/4" pipe from a txv or a captube going to the cpu block, and then one 3/8" or 1/2" copper tube running over the nb and gpu. Don't bother with cooling hte memory its a waste of time.

[godspeed]

so you think that the best idea would be to use a txv instead of a captube; ok i dont know much about txv so where abouts should i stick it all things such as the bulb (is there a rule like 5' from the compressor inlet), or maybe theres a post on the forums that someone could direct me to so i can learn more about them.

What if im using a 1/2 Hp compressor what should the superheat be?
If im going to use a txv what size compressor should i get?

Also thanks for the help