Weird water cooling question

[Mnx4]

I was doing some research last night and i found a liquid that has a higher specific heat than water and it is naturally ocurring! its liquid ammonia! the only problem is that its a gas a room tempreture. I checked out household ammonia thinking it would work, but it says that it is ammonium hydroxide plus some weird additives. I asked my chem teacher about it and she said ammonium hydroxide is the product of running ammonia through water. Maybe itll work, maybe it wont... ill research some more.

Putting the laughter back in to Slaughter.

 

[Guest]

"didnt the flaurinert turn to gel when they used the dry ice and the ln2?"

No, but if I remember right the liquid nitrogen started to in it's container before they poured it anyway.

 

[Ed_Phoon]

But ammonium hydroxide will attack certain metals, make sure you choose the right one(tube, waterblock, etc).

I have another idea, use some wool or similar things that can absorb moisture, put it on top of heatsink, a reservoir and a wool rope to supply water/moisture to wet the wool(the terminology for the effect please), and blow a fan to the heatsink/wool, heat is sinked through evaporation of water, which is highly effective.

 

[HonestJhon]

the ln turned to gel?
crazy.


-DAvid

-Live, Learn, then build your own computer!-

 

[Mnx4]

i must say ed that is an ingenius idea! It takes a lot of energy to break the hydrogen bonds so it would thus make it cool better. I guess the only thing is how would you face your fan? you cannot blow the water vapor toward the motherboard because wouldn't it come in contact with the components and make them short out? Blowing it away from the components would work, but your case would have to be open to allow the vapor to go somewhere. It may work better in a closed system, like in a pipe or a tunnel. Great idea though.

Putting the laughter back in to Slaughter.

 

[HonestJhon]

maybe here is where the dehumidifier would come in handy..
have the fan pulling air in from the sides of the "heatsink", and then up through a pipe that blows the cooled air into a dehumidifier, and then the cooled, dried air would be pumped back into the case, which would be recycled.
only thing is, i am pretty sure that a de-humidifier needs to be drained, but you might ba able to make this into a closed system, just recycle the water from the de-humidifier, back to the wool heatsink.
this is a pretty good idea..
seeing as how our body is able to keep our core temp close to 98.6, through an intricate process, similar to that of a watercooling system, with our veins and arteries taking heat from inside, and moving it to our skin surface, which is evaporated away...and the whole thing is obviously very efficient, since we dont spontaneuously combust.

-DAvid

-Live, Learn, then build your own computer!-

 

[knowan]

The problems with using ammonia are as follows:

1) It is a gas at room temp.

2) It is corrosive.

3) It is highly noxious (smells bad enough to knock you out).

The solution: Use a closed system under high pressure. Under higher pressure the boiling point increases. You'd want to get it up around 75C for a liquid cooled system or around 40-45C for an evaporation/condensation system.

Of course, it would still be highly corrosive, so you would have to replace parts occasionally (particularly in the pump if one is used). And if it ever springs a leak you would have to evacuate. I'm serious, this stuff is powerfully smelly, enough to knock you out and leave you breathing it in and corroding your lungs until you die.

As for the wet wool idea, there are 4 problems:

1) water + electricity = electric short

2) You would have to constantly be wetting the wool. High maintenance.

3) As the evaporation takes place, it increases the local humidity. As the humidity increases evaporation becomes less effective. You would have to exhaust the humid air from the computer room.

4) Moisture + warmth = mould and other biotics

As for the solution, you would have to use some sort of an open topped container to hold the wet wool only over the CPU. Since you would have to make sure that it does not leak, you would most likely have to permanently affix it to the processor/mobo, meaning no upgrades. There's a heat conducting enamel that you can paint directly on the CPU to waterproof it and the surrounding area.

They you set up some sort of a wick to move water from a reservoir to the wool. You would still have to fill the reservoir on occasion, but it's a lot easier than trying using an eyedropper to add a few drops every few seconds.

As for the circulation/humidity problem, simply open a window and have a fan exhaust the air.

The biotics problem is a bit more difficult. You can't add anything to the water because it will either a) evaporate with the water into the air that you are breathing or b) as the water evaporates and it doesn't it will build up over time and start "gumming up the works". Solution: don't use wool. Find a substance which is porous enough to absorb the water and is naturally resistant to biotics. Unfortunately, nothing comes to mind here.

Wouldn't it be easier to set up a watercooling system with a bong-type evaporator instead? Same general effect except that the evaporation is moved out of the case.


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