Inline chiller

[mkosem]

hi, I'm looking into building an inline chiller for my system. I have ordered a maze block from dangerden. What size pelt should I use for this? And how much glycol will I need to prevent the water from freezing?


--MAtt

[JimS]

You might want to wait until Joe posts Kevin's chiller article to get more information. Small chillers usually do not work very well, maybe a one or two degree drop in water temp. There just simply is not enough time for the water to be in the chiller for it to get cold.

[Amy]

Matt:
I have a link to a forum OC.AU page
You can check my first two chillers out.
http://forums.overclockers.com.au/sh...&threadid=1006

Cheers Amy -
amycroft.com

Originally posted by Matt:
hi, I'm looking into building an inline chiller for my system. I have ordered a maze block from dangerden. What size pelt should I use for this? And how much glycol will I need to prevent the water from freezing?


--MAtt

[Amy]

Matt:
Oh yes there are two pages, most pictures are on frst page. Be sure to pan page to the right as these are very large pages.

Cheers Amy -

OCDB Pictures also at: http://www.overclockers.com.au/pcdb/...=Amy&page=pics

[Kevin]

Amy - where did you get that block? It looks like it is the same one I have... and Dennis told me he only made one for him and one for me.

[Amy]

Originally posted by Kevin:
Amy - where did you get that block? It looks like it is the same one I have... and Dennis told me he only made one for him and one for me.

Kevin
Dennis is correct, I borrowed a set of prototypes. Not the production units. They look sweet.
I tested the first prototypes with two 80W potted peltiers as the distance between the holes were 4MM too close.
The problem last winter (So Cal) was condensation. Dew point 13C. I used a Samlex 25Amp 13.8Volt Power supply. Non Switching.
Now that it is getting hot here, I will test again after humidity drops - 78% now.
Keep up the good work.
Cheers Amy -

[bach-on]

I tried this trick with a homemade block setup. I never could get it to work well.

I've seen where a guy stuck his TEC in a metal case inside the water reservoir. This provides extended time for the water to get chilled. But I don't think he was successful in reaching really cold temps.

I'll be interested to see how the water chiller works. Please keep us posted.

[spewn]

As far as the water chiller thingy goes, here's why it didn't work as expected. When water passes over a hot thing, such as a cpu, and removes all the heat energy from it, it doesn't actually raise in temperature very much. The reason for this is that water can absorb VERY large amounts of heat before raising in temperature, when comapred to other substances. This is why, even though the water is having large amounts of heat energy removed from it by the chilling unit, it doesn't change very much in temperature.

[JimS]

I look at it this way, most of these inline water chillers being built have water running through them at a high rate of speed. The water probably spends less than 3-5 seconds inside the chiller(if that).

Drop an ice cube in a glass of room temperature water and take it out after 3-5 seconds. Water temp. will not change much.

[Amy]

Originally posted by JimS:
I look at it this way, most of these inline water chillers being built have water running through them at a high rate of speed. The water probably spends less than 3-5 seconds inside the chiller(if that).

Drop an ice cube in a glass of room temperature water and take it out after 3-5 seconds. Water temp. will not change much.

Hi JIMS:
You and most likely Kevin were very disappointed in the sink top experiment.
Let me say: Er.. Ah... Ummm... in a polite way that Kevin's methodology in this experiment was not -er... exactly - Ah .. setup correctly.
No offence Kevin, but there are two ways to get operational performance with an inline chiller, giving a CPU temperature of 5C to 12C with just two 80W potted peltiers at 8.5Amp and 13.8Volts. This CPU temperature can be made to operate ( with no peltier on CPU ) by some careful and creative methods.
Please look at the flow path ( of the nifty red hoses )on the picture in bathroom
If you look at the image in the mirror, the appears to be a loop back between the Upper and Lower three pelt copper blocks.
Please examine and see if you concur.

JimS, did you happen to view those links to pictures, on www.overclockers.com.au ?
The are large pictures - so please pan to right on screen shot - it displays 8C CPU temp.

Anyway I think Kevin can use the blocks in a creative way to lower an existing closed loop water cooling system. A few peices of wet suit neoprene on the exposed frosty side of the chiller block and some hardware store 1/2 inch pipe insulation 79 Cents for six foot. This will give chiller inventors better results.

I'll have a bit of time over next weekend to further explain in a new thread, those two methods which we have previously tested and operate for inline chillers. Both single curcuit and dual curcuit configurations.

Regards and Cheers Amy Croft -

[Amy]

Kevin, JimS

It looks like I may not have this weekend free.

Here is post about Chiller on ASUSBOARD
http://www.asusboards.com/vbulletin/showthread.php?s=&threadid=6526&perpage=15&page number=2

Cheers Amy -

Should produce these temp using two 80W 8A TEC

[JimS]

Kevin, is Amy correct? You used the same loop to cool the hotside and chill the coldside? I thought you had used separate loops.