Making a Heate core - Page 2

bikr · 03-13-2003, 07:33 AM

Quote:

Come on someone has had to have built ther own heatcore

Why not worry about building something new for your PC cooling rather than trying to hand build something that was designed for a car that you can run to any junk yard and pull out for next to nothing. This doesn't make sence to me. Perhaps you should start a new thread entitiled "Heat Exchanger Ideas From the Ground Up" or something. Just my 2 cents....

Josh

Volenti · 03-13-2003, 08:44 AM

Quote:

Originally posted by saton472
Come on someone has had to have built ther own heatcore

I'm currently in the process of making a purpose built radiator (to fit the side of the case) I'll make a post about it when I'm done.

chesspatzer · 03-21-2003, 08:44 AM

You wouldn't actually have to do any soldering by using some kind of thin copper sheet. Just cut to size and then drill holes in the sheet about 1/32" (guessing) smaller than the OD of the copper tubing and "press fit" it down onto the tubing. Maybe then a couple of spots of Arctic Silver Epoxy to hold it firmly in place. The contact should be OK as the sheet fins would flare a little bit onto the tube. You'd have to experiment with sheet thickness and hole size.

saton472 · 03-21-2003, 02:49 PM

that was an idea i had that i threw away for some reason :shrug: but now that you mentioned the flaring that would mean that more of the fins would be touching the copper pipe meaning better heat transfer. another question should i make the fins out of one big sheet of copper with lots of folds like in cars or should each fin be seperat like the one that i previosly showed from danger den and my design.

chesspatzer · 03-23-2003, 05:24 AM

I'm not sure of the purpose for the shaped/folded fins. Maybe air turbulence over the fin for better heat dissipation. I'm guessing that a homemade radiator is going to lack the 'symmetry' that would result in laminar flow and say that you don't need folds.

saton472 · 04-01-2003, 11:20 PM

Do you mean symmetry in the spacing of the fins or the folds

chesspatzer · 04-02-2003, 06:24 AM

Maybe 'symmetry' isn't the best word. Maybe 'uniformity' is better. But what I mean is, the fins you make most likely are not going to be perfectly flat - they are likely to have nicks, bends, crinkles - like wadding up aluminum foil or a gum wrapper and trying to flatten it out. Also your spacing between fins, offset, angles of alignment are going to vary. These 'imperfections' may give you added air turbulence that the folds would normally provide on a core that was manufactured to more exact specs.

Remember, if your project is a flop, I'm only speculating here. On the other hand, if it works out great, I'll take the credit.

saton472 · 04-02-2003, 08:42 AM

Im planning on using a sheet of luan cut to the size of the fins for spacing. im going to have a piece in between each piece when cutting the holes. then befor i put the fins on I will cut the sheets of luan along the holes. Then ill put the sheets of luan back inbetween each fin. then i put the pipes throug the holes and then pullout the luan. that why ill get evan spacing without the fins Bending.

saton472 · 04-02-2003, 04:37 PM

if you see anything wrong with my idea tell me please

jaydee · 04-02-2003, 05:00 PM

What is luan?

bigben2k · 04-02-2003, 05:13 PM

Quote:

Originally posted by jaydee116
What is luan?

It's a Luby's platter, LOL!

Axle · 04-02-2003, 05:57 PM

Well, the price was right, so I nabbed it. $10 off ebay.

It will be in addition to my Gerwin style rad, with hopefully a temp drop. I havn't had time to try it out; I blew up my brand baby new 1600+ (always plug the pump in, guys, it works better than way

), so the temp drop isn't really needed anymore.

I need to rearrange a few things, dig up my old Maxi1200 (a single MJet isn't enough!!), and then I'll post with an update. It's 24 ft long, BTW, and 1/2"ID. This will bring total tubing in my system up to around 50ft, with a TC-4 & Innovatek GF4.

snowwie · 04-02-2003, 06:43 PM

luan is plywood, about 1/8" thick, maybe less

I would not fold the fins because then you can't flow air across it (only longways)

saton472 · 04-03-2003, 11:57 AM

if you see anything wrong with my idea tell me please

chesspatzer · 04-03-2003, 12:02 PM

Hey Axle - I've seen them things used in stills in parts of PA. Are you making moonshine with your computer?

saton472 · 04-07-2003, 11:32 AM

Iv been pm'ed about what im planning to put in my system so here is what it will be.
CPU= P4 2.6G Need to buy
Hard drive= two. a 100 GB and a 15 GB already have them
Mother board= need to buy
Audio card= Sound Blaster audigy Platnium 2 (Need to buy)
Video= all in wonder 9000 Dv ( need to buy)

Im planning on cooling the video card, the cpu, and thats it. as i said befor i wont use tec's because of the horror storys

03-21-2003, 08:44 AM	#28
chesspatzer Cooling Neophyte Join Date: Mar 2003 Location: Planet Unreal Posts: 8	Fin Attachment You wouldn't actually have to do any soldering by using some kind of thin copper sheet. Just cut to size and then drill holes in the sheet about 1/32" (guessing) smaller than the OD of the copper tubing and "press fit" it down onto the tubing. Maybe then a couple of spots of Arctic Silver Epoxy to hold it firmly in place. The contact should be OK as the sheet fins would flare a little bit onto the tube. You'd have to experiment with sheet thickness and hole size.

03-21-2003, 02:49 PM	#29
saton472 Cooling Neophyte Join Date: Feb 2003 Location: Virginia, USA Posts: 57	that was an idea i had that i threw away for some reason :shrug: but now that you mentioned the flaring that would mean that more of the fins would be touching the copper pipe meaning better heat transfer. another question should i make the fins out of one big sheet of copper with lots of folds like in cars or should each fin be seperat like the one that i previosly showed from danger den and my design. __________________ Live and learn. Then get a Dremel.

04-01-2003, 11:20 PM	#31
saton472 Cooling Neophyte Join Date: Feb 2003 Location: Virginia, USA Posts: 57	Do you mean symmetry in the spacing of the fins or the folds __________________ Live and learn. Then get a Dremel.

04-02-2003, 08:42 AM	#33
saton472 Cooling Neophyte Join Date: Feb 2003 Location: Virginia, USA Posts: 57	Im planning on using a sheet of luan cut to the size of the fins for spacing. im going to have a piece in between each piece when cutting the holes. then befor i put the fins on I will cut the sheets of luan along the holes. Then ill put the sheets of luan back inbetween each fin. then i put the pipes throug the holes and then pullout the luan. that why ill get evan spacing without the fins Bending. __________________ Live and learn. Then get a Dremel.

04-02-2003, 04:37 PM	#34
saton472 Cooling Neophyte Join Date: Feb 2003 Location: Virginia, USA Posts: 57	if you see anything wrong with my idea tell me please __________________ Live and learn. Then get a Dremel.

03-23-2003, 05:24 AM	#30
chesspatzer Cooling Neophyte Join Date: Mar 2003 Location: Planet Unreal Posts: 8	I'm not sure of the purpose for the shaped/folded fins. Maybe air turbulence over the fin for better heat dissipation. I'm guessing that a homemade radiator is going to lack the 'symmetry' that would result in laminar flow and say that you don't need folds.

04-02-2003, 06:24 AM	#32
chesspatzer Cooling Neophyte Join Date: Mar 2003 Location: Planet Unreal Posts: 8	Maybe 'symmetry' isn't the best word. Maybe 'uniformity' is better. But what I mean is, the fins you make most likely are not going to be perfectly flat - they are likely to have nicks, bends, crinkles - like wadding up aluminum foil or a gum wrapper and trying to flatten it out. Also your spacing between fins, offset, angles of alignment are going to vary. These 'imperfections' may give you added air turbulence that the folds would normally provide on a core that was manufactured to more exact specs. Remember, if your project is a flop, I'm only speculating here. On the other hand, if it works out great, I'll take the credit.

04-02-2003, 05:00 PM	#35
jaydee Put up or Shut Up Join Date: Dec 2001 Location: Spokane WA Posts: 6,506	What is luan?

04-02-2003, 05:57 PM	#37
Axle Cooling Savant Join Date: Aug 2002 Location: Wind Gap, PA Posts: 112	Well, the price was right, so I nabbed it. $10 off ebay. It will be in addition to my Gerwin style rad, with hopefully a temp drop. I havn't had time to try it out; I blew up my brand baby new 1600+ (always plug the pump in, guys, it works better than way ), so the temp drop isn't really needed anymore. I need to rearrange a few things, dig up my old Maxi1200 (a single MJet isn't enough!!), and then I'll post with an update. It's 24 ft long, BTW, and 1/2"ID. This will bring total tubing in my system up to around 50ft, with a TC-4 & Innovatek GF4. __________________ "Once we've got those bugs flattened out, we'll be running on flat bugs"

04-02-2003, 06:43 PM	#38
snowwie Cooling Savant Join Date: Mar 2003 Location: New Jersey Posts: 154	luan is plywood, about 1/8" thick, maybe less I would not fold the fins because then you can't flow air across it (only longways)

04-03-2003, 11:57 AM	#39
saton472 Cooling Neophyte Join Date: Feb 2003 Location: Virginia, USA Posts: 57	if you see anything wrong with my idea tell me please __________________ Live and learn. Then get a Dremel.

04-03-2003, 12:02 PM	#40
chesspatzer Cooling Neophyte Join Date: Mar 2003 Location: Planet Unreal Posts: 8	Hey Axle - I've seen them things used in stills in parts of PA. Are you making moonshine with your computer?

04-07-2003, 11:32 AM	#41
saton472 Cooling Neophyte Join Date: Feb 2003 Location: Virginia, USA Posts: 57	Iv been pm'ed about what im planning to put in my system so here is what it will be. CPU= P4 2.6G Need to buy Hard drive= two. a 100 GB and a 15 GB already have them Mother board= need to buy Audio card= Sound Blaster audigy Platnium 2 (Need to buy) Video= all in wonder 9000 Dv ( need to buy) Im planning on cooling the video card, the cpu, and thats it. as i said befor i wont use tec's because of the horror storys __________________ Live and learn. Then get a Dremel.

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