Awesome new cooling idea, and it works this time!!!!!!!

second i need to reach 2" Hg, not 2 torr, 2 torr is why too low and thats crazy.
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Yes, it should be inches mercury not mm (I hate English units).
a single heat pipe has no where near the necessary potential to cool a processor. This is very different with a very large amount of liquid.
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Yet what you're planning on doing is to make what is essentially a rudimentary heat pipe. You can't have an open system with that pump.

And about the pressure created by the water vapor of the boiling water at 40C, where is your equation? PV=nRT?
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Huh?
 
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open system? it is completely closed and sealed.

and you said I need to extract 24L/min of vapor, how did you calculate that?
 
I'm sorry I meant to refer it as the critical point.

Critical Point specifies the conditions (temperature, pressure) at which the liquid state of the matter ceases to exist. As a liquid is heated, its density decreases while the pressure and density of the vapor being formed increases. The liquid and vapor densities become closer and closer to each other until the critical temperature is reached where the two densities are equal and the liquid-gas line or phase boundary disappears.

Placing elements in a vacuum only serves to lower the point at which this exists. BTW, your links don't work.

On a side note: I really gotta quite working the night shift. I haven't been this screwed up since high school
 
open system? it is completely closed and sealed.
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Then it is a heat pipe, regardless of what you want to call it. Anyway, just build it and test it out with a resistive heater while recording the loads and temperatures; it should be a fun experiment.
and you said I need to extract 24L/min of vapor, how did you calculate that?
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You need to vaporize 0.00002078 kg/s to receive a 50 W load at 40 C. This comes from the power equaling the mass flow rate times the latent heat of vaporization at 40 C. The volume flow uses the density at that temperature and pressure.
I'm sorry I meant to refer it as the critical point.

Critical Point specifies the conditions (temperature, pressure) at which the liquid state of the matter ceases to exist. As a liquid is heated, its density decreases while the pressure and density of the vapor being formed increases. The liquid and vapor densities become closer and closer to each other until the critical temperature is reached where the two densities are equal and the liquid-gas line or phase boundary disappears.

Placing elements in a vacuum only serves to lower the point at which this exists.
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Not really, the critical temperature is at the critical point; it doesn't vary. Actually increasing the pressure would lead to reaching the critical point, and since the critical point for water is 374 C and 22 MPa there's not much to worry about either way since I'm sure there would be an explosion before that.

Anyway, I have a very important test tomorrow that I have to study for. Goodnight.
 
The graph shows the speed at which these pumps can achieve the required suction. Obviously, the higher the vacuum the slower the flow rate. The fastest pump in that graph(the model 50) runs at around 700cc/min at 2inhg
 
..................Man, you guys lost me....Hmm....I need to re-read some of those old school books again.........lol....
 
I'm seriously thinking about trying this with some refrigeration tubing, old refrigerant canister and a 24cfm vacuum pump. 30"hg anyone? :D
 
if you do carry this out, be incredibly sure to keep me updated

but why those intense materials? why not just some WC tubing with a simple copper condenser? no pressure is added, but it is mostly taken away. there are not really requirements for low pressure components, only high pressure

and 30" of Hg is super high pressure, the point is very low pressure. And what does that 24cfm rating signify. i need to learn a little about vacuums, care to inform me a little?
 
the vacuum pump I'm using is used to get the contaminents out of large chillers and refrigeration units. The 24 cfm is how much air it can move. If I used a 3 cfm on a 300 ton chiller(which is still rather small) it would take forever and a day to get it down to the required 5 micron. using a pump with the capability to move 8 times the capacity speeds things up a little bit. I'm using this kind of equipment because the pump collapses wc, even as it first starts. I have seen it collapse copper coils in self contained heat pumps before when one of my coworkers had mistaken it for the 4 cfm pump for the smaller units. I looks the same except one has a big "24" spray painted on it and the other has a big "4"....idiot cost us $30,000 :rolleyes:

In case you're wondering, I would use the 4 cfm pump but it loses its ass at 7 microns on 10 ton units.
 
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I was with you all the way with the first few posts, now I'm lost but I've read every word.

Keep it up guys, makes a change to have something good to ponder over.;)
 
How many inches of vacuum are you hoping to pull? A vacuum of 9" is easily destroyable. When I work on the train I can pull the bag off at 9". A good vacuum is about 15" and if you only use it at a couple of inches you'll have a decent unit that won't blow out at least...

You could use one of these if you wanted 21": :P

2iijq5z.jpg
 
Your trying to build a heat pump, what you works better because trying to vaporise and condense water in the same system can be explosivly dangerous in the sense that you could shoot a pipe off, also maintaining a flow is also difficult. A better way to do what your doing is pressurise the water before it enters the radiator, thus heating it up. Or accually in this instance to make the pressure differences able to be as much to gain and absorb heat you need a refrigerant. But anyways pressurises it so it gets hot, then have this pressurized collant pass through a choke point into larger pipes, these are your cool ended pipes, run these to your heat exchangers, then into a holding tank, then it goes to the pump is pressurized and releases its heat all over again. Bassically an refigerated computer, same concempt of pressure differences, only instead its reversed.
 
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