Pro/Forums - View Single Post - Peltier-powered double loop cooler plans

Alchemy · 12-20-2002, 03:37 AM

Okay, here at my folks' for the holidays. I have a lot of tools at my disposal here and maybe a bit of cash, so I'm going to go forward with my plans for my new cooling system. It's a dual loop system - a hot loop cooling a pelt and a cold loop being chilled by the pelt.

The cold loop is going to be a Danner Mag Drive 3 (350 gph, and with sealant mod around housing) pushing a cold liquid to a WB cooled with 220W pelt and then on to the CPU WB, then back to the pump. Second loop is a Maxijet pump pushing water to cool the hot side of the pelt (through another WB) and on to a radiator cooled by a couple 120mm fans, then back to the pump. The Maxijet is the Becooling setup inside its own reservoir.

The pelts and the fans will be powered by two 400W ATX PSUs with their 12V and ground rails spliced together. Each one is rated for 15A on the 12V rail. The pelt is rated for approximately 20A at 12V. The fans shouldn't pull more than 0.5A each.

I have enough parts around that all I need to purchase is the Mag Drive, tubing, the pelt, and the power supplies.

I have no scanner here, so I can't show you any of my sketches, but next time I get a chance to peruse the board I should have some bitmaps so you can get a better idea of what I'm trying to do. Right now I was mostly hoping some of you could look at these products I picked out and give me any opinions on them.

Hopefully, someone could also answer why this PSU is so frigging cheap.

http://216.136.224.156/hoct12/542.html

Unless it's prone to overheating or has a fan that sounds like a buzzsaw, I imagine it's suitable for my purposes. I'd like to know what's wrong with it to justify such a low price, though.

The pelt I plan to grab here:

http://becooling.safeshopper.com/10/121.htm?210

I vaguely remember someone offering the Mag Drive 3 for around $35 somewhere. I know petsmart sells them for about $10 more.

The tubing and fittings will come from US Plastics. I was planning on Norprene since it would work well at the sort of temperature range I was expecting and shouldn't mind the alcohol or whatever else I'll need to keep the viscosity of the cold fluid low. Plus, it might insulate a bit better, and it doesn't cost much more than regular vinyl tubing.

Total cost on this is running close to $150. I'd like to keep it that way.

So, any suggestions from the experts?

Alchemy

12-20-2002, 03:37 AM	#1
Alchemy Cooling Savant Join Date: Oct 2002 Location: Boston Posts: 238	Peltier-powered double loop cooler plans Okay, here at my folks' for the holidays. I have a lot of tools at my disposal here and maybe a bit of cash, so I'm going to go forward with my plans for my new cooling system. It's a dual loop system - a hot loop cooling a pelt and a cold loop being chilled by the pelt. The cold loop is going to be a Danner Mag Drive 3 (350 gph, and with sealant mod around housing) pushing a cold liquid to a WB cooled with 220W pelt and then on to the CPU WB, then back to the pump. Second loop is a Maxijet pump pushing water to cool the hot side of the pelt (through another WB) and on to a radiator cooled by a couple 120mm fans, then back to the pump. The Maxijet is the Becooling setup inside its own reservoir. The pelts and the fans will be powered by two 400W ATX PSUs with their 12V and ground rails spliced together. Each one is rated for 15A on the 12V rail. The pelt is rated for approximately 20A at 12V. The fans shouldn't pull more than 0.5A each. I have enough parts around that all I need to purchase is the Mag Drive, tubing, the pelt, and the power supplies. I have no scanner here, so I can't show you any of my sketches, but next time I get a chance to peruse the board I should have some bitmaps so you can get a better idea of what I'm trying to do. Right now I was mostly hoping some of you could look at these products I picked out and give me any opinions on them. Hopefully, someone could also answer why this PSU is so frigging cheap. http://216.136.224.156/hoct12/542.html Unless it's prone to overheating or has a fan that sounds like a buzzsaw, I imagine it's suitable for my purposes. I'd like to know what's wrong with it to justify such a low price, though. The pelt I plan to grab here: http://becooling.safeshopper.com/10/121.htm?210 I vaguely remember someone offering the Mag Drive 3 for around $35 somewhere. I know petsmart sells them for about $10 more. The tubing and fittings will come from US Plastics. I was planning on Norprene since it would work well at the sort of temperature range I was expecting and shouldn't mind the alcohol or whatever else I'll need to keep the viscosity of the cold fluid low. Plus, it might insulate a bit better, and it doesn't cost much more than regular vinyl tubing. Total cost on this is running close to $150. I'd like to keep it that way. So, any suggestions from the experts? Alchemy