Submerged phase?

[dangerous_squid]

Call me crazy, but would it be possible to submerge the condenser/compresser part of the phase unit in liquid, thus sound proofing it, but allowing heat to radiate out through the case walls??

[JSU]

I dont see a major problem with it besides the electronics. So you would have to use flurinert or whatever that stuff is called. Also, the thing is going to splash like crazy due to the vibrating compressor.

[[XC] MarioMaster]

If you want a quiet system, the compressors and condensors from fridges are usually much quieter than regular ones. But they also don't come in as large capacities. That much non conductive liquid is gonna cost a lot.

[n00b 0f l337]

Condensers you can get watercooled HX ones. Pretty easy to make too. Compressor? There so hot it could boil your water. It being submerged with the condenser wouldnt let ur basic high stage gas to condense.

[K404]

Yea, Mole, Fatty, Boardy and myself have been discussing watercooled H/X. No reason why it shouldnt work, but would maybe need to extend the distance between the compressor and the HX (assuming stock Mach/Vapo) to get a better compartment made, maybe with space for a small propellor to keep the water moving.

[n00b 0f l337]

Watercooled HX's are a smart setup as its a bit like adaptive load when the heat turns up.

[Xeon th MG Pony]

Well you could use a water cooled condenser then submerge the whole unit in HVAC grade Minerol Oil and make a lid with heat sinks on it to cool the oil, Or use the water comming out of the conser to a seconday heat exchanger to cool the oil.

Ok here's an idea, using the water cooled condenser take the water comming out of that, wrap a fiew loops of copper around the compressor, and put it through that, so the exuast water from the condensor is now cooling the compressor? then back out of the system. So now the unit can be sealed as a module with 2 water connecters and then your high/low side connectors..

[Shyfty]

Ok here's an idea, using the water cooled condenser take the water comming out of that, wrap a fiew loops of copper around the compressor, and put it through that, so the exuast water from the condensor is now cooling the compressor? then back out of the system. So now the unit can be sealed as a module with 2 water connecters and then your high/low side connectors..

You would have to ensure that the radiator used in the water cooling circuit had tha capacity to cool the extra heat from the compressor...also have to make sure that the hose was heat resistant... I can see it now... melted hose and water everywhere... temps rising and ...boom!

[K404]

I`d rather keep a separate loop for the compressor coz of the heat it kicks out. I`ve thought of a watercooling cap kinda idea, but no-one thought it was that great an idea.

What about a shaped heatsink, like a hedgehog/porcupine?

[Icy]

My Watercooled HX condenser project (http://www.xtremesystems.org/forums/showthread.php?t=82667&page=3) It works really well you just have to make sure you have a nice rad to take the heat away.
Hope that helps

[Xeon th MG Pony]

water has massive capacity and you'll never get to the melting point of most tubes unless you go catastruficly wrong! besides for every thing in the oil bath should be Copper, three wraps for the compressor, what ever the condenser needs to be and a good flow, I usualy just used tap water at a constant stream for the concer and they work like a champ.

I supose you could even braze on the tubing to the compressor wall!

[K404]

@Icy...nice! Is/was there any way to compare temps before and after? (air cooled and watercooled HX) Is it quieter?

[Xeon th MG Pony]

Naturaly it would tend to me much quieter as you can rout all the fans out side thus geting beter condencing temps to boot!

I don't intend on submerging my system but I do plan to mound the compressor plant out side and wrap it in foam to keep the plant tempiture stable and to dampen noise, this will be a good trade off, Cooler condensing tempitures and higher OFF cycle tempitures. One must be mind full of the OFF cycle tempiture! If it is too cool all the refridgerant will pool inside your compressor! your evap temps will not be much diferance, we are simply making the work of the compressor less by improving condencation pressure/Tempiture curve making it need less pressure by lowering the tempiture of the condensate.

Vibration will travel through the box as well, so if one where to omite the rubber feet then it will be equaly loud due to ressonance, but if one includes the rubber feet it will be that much more quiet! then it all will come to tube routing :) at the price of a more complex circuit which has higher risk of some thing failing :( One can mitigate this by using a standerd remote compressor plant with acustic insulation and standerd air cooling, or locat the condensor remotly with the fan as compressors tend to be not loud.

It is all to do with care full system design and component placement and tube routing :)

[dangerous_squid]

So the general consensus is that a compressor generates too much heat to be submerged? Even if you keep it sectioned off from the condensor?

I guess what I'm asking is there a passive way to cool the "hot" parts of a phase system?

[epion2985]

What is the point of watercooling your heat exchanger. You still have to remove the same amount of heat but from the water now, actually more because the pump you will use to pump it will dump heat in to it. Also the more stages you pass the heat through the less efficient the system gets, same reason DD works better then a chiller, no middle man, ie coolant. So why?

[Xeon th MG Pony]

Unless he lives near a creek or river!

[epion2985]

That would be the best. Have am MD70 outside your house pumping water from the river though your system then dumping it back out in the river. Would be quiet. On the other hand you can do the same by just putting your rad/condenser outside like most home central AC systems do :eek: stroke of genues? no it just makes to much sence... lol.

In retrospect I was thinking about putting the whole condenser and compressor set up on the other side of the wall outside in my back yard. Could leave a crack in my window to lay the line, or just pipe it thugh the wall. It could even be movable if coneccted with refrigiration hoses like on a manifold and some shrader valve type connects. Food for thought. Only downside you cant take it to a friends house (!!unlesehe has a compressor and condenser assembly ready for you to hook in to :)!!), but then again who really drags their DD around town, or better yet a cascade lol.

Now there is an idea, the rig doesnt house the compressor and condenser and you just hook up to an assembly where you go lol. That should be the next big lan party crazy. They provide compressor / condenser asemblies for you to plug your rig in to haha, i am crazy!! :cheer2:

[[XC] MarioMaster]

That's what I did for my water cooling system. It worked really well in the winter :)

[the_new_guy]

well i have my bong in my balcony!

[epion2985]

maybe I am not so crazy :para:

[the_new_guy]

it works coz my computer table is close to my balcony door just have pipes running thru the door.