OT: Minature/Model AC? Is there such a thing? |
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OT: Minature/Model AC? Is there such a thing? |
Katmanken |
Nov 25 2008, 07:12 PM
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#21
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You haven't seen me if anybody asks... Group: Members Posts: 4,738 Joined: 14-June 03 From: USA Member No.: 819 Region Association: Upper MidWest |
Anything that cools with electricity makes heat, how much cooling do you want?
Mebbe a block of CO2 in front of the air intake.... Or the shifty trick of venting a CO2 fire extinguisher into the cooling intake.... like a millitary Comm system that I worked on. - The system passed the qualification tests, but never worked in the field. We figured out that the previous contract owner used that trick.... Seriously, buy a small window AC unit, run a hose from the vent to the card, and turn on the AC cooling and fan to max. The AC can vent into the room or, vent it outside. In any case, making the level of coolingyou seem to need means a lotta BTU's. Those britsh thermal units are small, so it takes a lot of them. Or, if you don't mind noise, a vortec tube that runs on compressed air.... Blows hot air out one end and cool air out the other... No one can explain how they work, but they are not pseudoscience. Vortec tubes Ken |
r_towle |
Nov 25 2008, 07:16 PM
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#22
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Custom Member Group: Members Posts: 24,585 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
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Katmanken |
Nov 25 2008, 09:27 PM
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#23
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You haven't seen me if anybody asks... Group: Members Posts: 4,738 Joined: 14-June 03 From: USA Member No.: 819 Region Association: Upper MidWest |
I reworded that statement..
Ice doesn't make heat, and a CO2 tank blowing down doesn't make heat. Heat was produced in making the ice and pressurizign the CO2 tank, but the action of the ice and CO2 tank is separated by time from the heat. Ken |
jcd914 |
Nov 26 2008, 12:06 AM
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#24
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Advanced Member Group: Members Posts: 2,081 Joined: 7-February 08 From: Sacramento, CA Member No.: 8,684 Region Association: Northern California |
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rktmn247 |
Nov 26 2008, 12:21 AM
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#25
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Irish Green with GT envy! Group: Members Posts: 347 Joined: 18-August 05 From: Mililani, HI Member No.: 4,612 Region Association: None |
Drinking fountains have small ac systems. With water blocks for the cpu's and the gpu and a recirc sys to cycle the water continuously it might work or you could get one of these. I don't know if they do the gpu though.
http://www.pcstats.com/articleview.cfm?articleID=1793 |
Chris Hamilton |
Nov 26 2008, 12:26 AM
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#26
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Senior Member Group: Members Posts: 611 Joined: 7-March 06 From: Berkeley, CA Member No.: 5,687 |
Vapochill and Prometia made cooling systems like that.
The best system you can do is a chilled water cooling system if you're trying to cool a CPU and a video card. You're gonna need a TON of insulation and wrap, but I've seen these and they work quite nicely. The idea is that instead of a radiator to cool the water down to above room temp, you run chilled water over your components to cool them off well blow room temperature. A modified window AC unit can be used for this. Peltiers don't work for computer cooling, there are simply too many watts of heat to move, and peltiers only create a delta of temperature, they don't have an evaporation temperature like a real phase change cooler. One of my favorite methods of cooling a computer is with a bong cooler. You use a big PVC pipe apparatus and a shower head to spray the water down a 3" or 4" PVC tube to a reservoir at the bottom. The evaporation of some of the water cools the whole system down quite nicely instead of just using a radiator to cool your water. I can draw up the plans for any of these if anyone needs one of them. |
SirAndy |
Nov 26 2008, 12:31 AM
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#27
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Resident German Group: Admin Posts: 41,673 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
My GPU is enclosed and the video card has a huge fan on it that blows air through a plastic housing.
The GPU is not exposed on the board, so adapting liquid cooling would be a bitch. Thanks for the link, that unit looks interesting, but again, no cold air. And it only fits one sort of CPU ... (IMG:style_emoticons/default/sad.gif) Andy |
Chris Hamilton |
Nov 26 2008, 12:32 AM
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#28
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Senior Member Group: Members Posts: 611 Joined: 7-March 06 From: Berkeley, CA Member No.: 5,687 |
My GPU is enclosed and the video card has a huge fan on it that blows air through a plastic housing. The GPU is not exposed on the board, so adapting liquid cooling would be a bitch. Thanks for the link, that unit looks interesting, but again, no cold air. And it only fits one sort of CPU ... (IMG:style_emoticons/default/sad.gif) Andy You have to remove the heatsink and fan on the video card. ( it's easy ) http://www.dangerden.com makes waterblocks that fit all the important areas of your video card. |
Chris Hamilton |
Nov 26 2008, 12:36 AM
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#29
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Senior Member Group: Members Posts: 611 Joined: 7-March 06 From: Berkeley, CA Member No.: 5,687 |
Here's your 8800GTX version http://www.dangerden.com/store/product.php...at=0&page=1
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pete-stevers |
Nov 30 2008, 02:00 PM
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#30
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saved from fire! Group: Members Posts: 2,642 Joined: 10-October 04 From: Abbotsford,BC, Canada Member No.: 2,914 Region Association: Pacific Northwest |
Andy did you come to a conclusion on this??
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Jeffs9146 |
Nov 30 2008, 05:25 PM
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#31
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Ski Bum Group: Members Posts: 4,062 Joined: 10-January 03 From: Discovery Bay, Ca Member No.: 128 |
QUOTE Drinking fountains have small ac systems. With water blocks for the cpu's and the gpu and a recirc sys to cycle the water continuously it might work or you could get one of these. I don't know if they do the gpu though. I have 3 chilling cores from cold water dispensors that could be adapted to do something! I was using them to cool the water in my salt water fish tank! Let me know if you would like to experiment with one! |
Jeffs9146 |
Dec 1 2008, 04:24 PM
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#32
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Ski Bum Group: Members Posts: 4,062 Joined: 10-January 03 From: Discovery Bay, Ca Member No.: 128 |
Here is a photo of the chilling units that I have!
Attached image(s) |
Chris Hamilton |
Dec 3 2008, 01:39 PM
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#33
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Senior Member Group: Members Posts: 611 Joined: 7-March 06 From: Berkeley, CA Member No.: 5,687 |
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Dr. Roger |
Dec 3 2008, 04:25 PM
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#34
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A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
is there any reason you couldn't gut a cheap mini-freezer
http://sfbay.craigslist.org/pen/hsh/938744938.html and duct the freezing cold air right on top of the your graphics card heat sink/fan? You just want a stable source of freezing cold air, right? Patent pending..... (IMG:style_emoticons/default/wink.gif) |
Dr. Roger |
Dec 3 2008, 04:31 PM
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#35
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A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
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SirAndy |
Dec 3 2008, 07:47 PM
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#36
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Resident German Group: Admin Posts: 41,673 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
is there any reason you couldn't gut a cheap mini-freezer They're not build to create large volumes of cold air. Think about it, a fridge or freezer has zero (0) airflow. It only cools what is in it. If you start sucking air out of the freezer, you need to replenish that air. At which point air will be flowing through the freezer way to fast for it to do any cooling to the air. Plus, how do you get the air in/out of the freezer? The surrounding insulation is achieved by a hollow space with a vacuum. If you drill a hole in the wall for a hose, you destroy the vacuum and thus lose the insulation ... (IMG:style_emoticons/default/shades.gif) Andy |
SirAndy |
Dec 3 2008, 07:51 PM
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#37
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Resident German Group: Admin Posts: 41,673 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
Andy did you come to a conclusion on this?? No conclusion, but i did rig up a temporary fix of sorts. I turned the computer sideways, removed the side panel and added a second, larger fan that blows ambient air right into the fan of the video card. That second fan gets it's air through a duct to prevent preheated air from being sucked in. Now the heat can freely escape out the top without the CPU heat preheating the GFX card above. It seems the system runs more stable now, the GFX card still gets plenty hot thought. I'd really like to find some permanent solution with cold air, not water ... (IMG:style_emoticons/default/idea.gif) Andy |
r_towle |
Dec 3 2008, 08:54 PM
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#38
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Custom Member Group: Members Posts: 24,585 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Andy did you come to a conclusion on this?? No conclusion, but i did rig up a temporary fix of sorts. I turned the computer sideways, removed the side panel and added a second, larger fan that blows ambient air right into the fan of the video card. That second fan gets it's air through a duct to prevent preheated air from being sucked in. Now the heat can freely escape out the top without the CPU heat preheating the GFX card above. It seems the system runs more stable now, the GFX card still gets plenty hot thought. I'd really like to find some permanent solution with cold air, not water ... (IMG:style_emoticons/default/idea.gif) Andy You really only have two choices Either use a system that benefits from the chemical change from gas----liquid---gas to remove the heat, like a standard AC unit using refrigerant.... OR use a thermoelectric device. To run a test or at least have a toy to rip apart...go get a DC powered cooler from an RV store...I have two, they work great. This is a thermo electronic device that works. The whole unit is contained in the lid...no need to cut or build anything. It has the fan built in and blows cold air...just add some funky duct work to test it. Rich |
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