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TEC Chill Box Chamber Build log - Page 40

post #391 of 1654
Thread Starter 
ok, so I am still finishing the PC case for this build, maybe I will have some time this weekend to finish that. there are some raised sections in the case that I need to grind off, and 3 standoff's that I need to epoxy to the case for the motherboard. I also need to make a plate to keep the video cards in place. still lots of work to do on the PC case.
I need to finish the reservoirs, and the frame for them. I need to finish all the soft copper tubing going inside the ice chest. I need to make the hold downs for the ice chest, to secure the ice chest to the table top. that is going to look so wrong, I am using 4 I-hooks and two ratchet straps to secure the ice chest. biggrin.gif
hey, what ever works right thumb.gif
I need to finish the tubing for the vacuum pump. wow, its not a page of stuff left to do anymore tongue.gif
ok, the last thing I will have to do, is the wire going through the ice chest, I think I can get the rest of this done before the end of the month.
Edited by toolmaker03 - 4/8/16 at 10:29pm
post #392 of 1654
just to give you some info that may be good
post #393 of 1654
Thread Starter 
and the winner is after 24 hours in the 60% 40% mix.
http://imgur.com/9mr03LG

ok, so I like to be super sure that nothing stupid is going to happen to this stuff, so I am going to leave it in for the rest of the month.
so for anyone looking for that liquid that works well at cold temps, like 4F that's like a -15C, so yea, this stuff is the same as when I put it in, it has not thickened up at all, it's so cool. specool.gif
Edited by toolmaker03 - 4/16/16 at 6:48pm
post #394 of 1654
Thread Starter 
I got my first of 3 stinger's that I will be putting on this build, and I must say that is a relay.
http://imgur.com/0AH26Dg

at 200A I think it can handle this rig and will be functional for many years
post #395 of 1654
Thread Starter 
one day I will get 6 of the solid metal blocks for the build but I will have to wait for many months, maybe years. biggrin.gif

http://www.performance-pcs.com/aquacomputer-cuplex-kryos-hf-for-sockets-1366-1156-775-g1-4.html

I am still waiting for them to go on sale somewhere for really cheap.
Edited by toolmaker03 - 4/9/16 at 7:43am
post #396 of 1654
Quote:
Originally Posted by toolmaker03 View Post

I have a Schroder valve and I have been leak testing the build with air, I cap one end and attach the valve to the other end than I use a tire cap with a pressure read on the top of it, so I just tighten it down onto the Schroder valve after I fill the section with air that I am checking for leaks. thumb.gif.

I have the same concern as RnRollie when he asked you had you leak tested before applying all the clay and even though you have tested with an air seal, that does not cover what could happen to the fittings under extreme hot and cold, don't you think you should have tested actual fluid flow through the setup first?

Cold shrinks, heat expands, those are facts of life and IMO they will be affecting the seals, to me it seems like you're putting the cart before the horse that there is some testing along the way you should be doing to discover if there are any problems to address.

Do not forget the Challenger disaster and the cold you're after running is much lower than was on the launching pad that tragic day.

Do you really expect to assemble the entire setup to completion and push the power button and all is well, without pre-testing any of it?

Even standard water cooling setups can and do have leaks that have to be worked out, and some may not even show up until after it is run for awhile, but your project is way past standard water cooling?

The clay is going to do more than you may be taking into consideration it could hold cold enough to cause the peltier to stall, don't forget you only have a little over 1/8th inch or 3mm of peltier thickness and without a hot/cold balance the peltier will stall.

That's why IMO you should be testing along the way to discover if anything has to be adjusted, I am concerned that you are assuming quite a bit with zero testing to be sure.

There were many ideas I had with my setup that seemed great at the time, but they did not work and had to be discarded, I would hate for you to face the raw reality of something not working as planned after you have completely finished the build.

I strongly urge you to test as you go, and that's my 2 cents, Good Luck to You! Ryan

Edit: I almost forgot have you at least previously experimented with clamping pressure on the peltier?
Edited by OCAddict - 4/9/16 at 8:17am
post #397 of 1654
Thread Starter 
Quote:
Originally Posted by OCAddict View Post

I have the same concern as RnRollie when he asked you had you leak tested before applying all the clay and even though you have tested with an air seal, that does not cover what could happen to the fittings under extreme hot and cold, don't you think you should have tested actual fluid flow through the setup first?

Cold shrinks, heat expands, those are facts of life and IMO they will be affecting the seals, to me it seems like you're putting the cart before the horse that there is some testing along the way you should be doing to discover if there are any problems to address.

Do you really expect to assemble the entire setup to completion and push the power button and all is well, without pre-testing any of it?

Even standard water cooling setups can and do have leaks that have to be worked out, and some may not even show up until after it is run for awhile, but your project is way past standard water cooling?

The clay is going to do more than you may be taking into consideration it could hold cold enough to cause the peltier to stall, don't forget you only have a little over 1/8th inch or 3mm of peltier thickness and without a hot/cold balance the peltier will stall.

That's why IMO you should be testing along the way to discover if anything has to be adjusted, I am concerned that you are assuming quite a bit with zero testing to be sure.

There were many ideas I had with my setup that seemed great at the time, but they did not work and had to be discarded, I would hate for you to face the raw reality of something not working as planned after you have completely finished the build.

yes I have experimented with the different clamping pressure for the TEC's, that is why I build the frame for the CPU water blocks, as the plastic was too weak to tighten the bolts to 100PSI, but with the frame on them I have it tightened to 100PSI, and the plastic on the blocks just barely tweaks at this this pressure, and I am happy with that.

I strongly urge you to test as you go, and that's my 2 cents, Good Luck to You! Ryan

Edit: I almost forgot have you at least previously experimented with clamping pressure on the peltier?

well, true, I have made alterations to what I did with my test build.

with the test build I used fittings, like I am now, and yes messing with the fittings on the cold side could cause a leak, that is why I conditioned the seals on fittings the best I could. If I have a fitting that leaks, I always have JB weld to fix it, and I know that works. thumb.gif
the hot side on the test build got to 70C with no leaks and no conditioning so I should be fine on that side.
well no I do expect to have some issues but I think that I have tried to minimize the amount of issues I could have.
as for the clay, true, I don't know how well it will work, as I used foam on the test build, but I did not like how the foam worked, so I decided to use clay for the final build, as I think it will work even better.
as for stuff not working, I am testing for functionality as I go, I may not be leaving it on for long periods at a time, but I am testing it to make sure it works.
I do expect to have to make some changes after completion, I may have a connector that wont seal, or one later that starts to leak, and I will have to switch it out for a military connector.
I may have a relay that pops after a few weeks, as one did on the test build.
but as far as the general concept here I know that it will work as described because I did test it enough to get the general idea of what I would need to build this thing.
why did I not show the test build, for the same reason that I don't show any of my test builds, (unless someone really upsets me) there a learning process and look like crap.
also I have lots of issues with them, and there not safe, in fact I shocked myself a few times with that test rig, that is why I am being so careful to make sure that I do not have exposed electrical connections.
I don't what to give others the impression, that my test builds are something that should be copied.
Edited by toolmaker03 - 4/9/16 at 8:39am
post #398 of 1654
Thread Starter 
yes I did, and I have the peltiers at 100PSI now, that is why I built the frame for the CPU water blocks, as the plastic was not strong enough to handle that kind of pressure, but with the frame on there they are strong enough, the plastic just barely tweaks at that pressure, and I am happy with that.
post #399 of 1654
Thread Starter 
to OCaddict

I have a question, with all the work I have put into this rig, and the years of buying stuff for it, do you really think, that I won't do whatever is necessary, to get this rig functional?
post #400 of 1654
Quote:
Originally Posted by toolmaker03 View Post

to OCaddict

I have a question, with all the work I have put into this rig, and the years of buying stuff for it, do you really think, that I won't do whatever is necessary, to get this rig functional?

Looking at what you have invested in time and money to this point, I would hope you would!

There is nothing wrong with me expressing caution to you, questioning whether you have considered something or not may help you in the end?

My chilled water cooling has been operational over 3 years now, it is simple compared to your project, but I have learned quite a bit the hard way regarding peltiers and used all those hard learned lessons to construct my final build, and sir, that's why it works!
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