Watercooled Powersupplies

[tiresias]

Re: Watercooled Powersupplies

How are industrial water cooled PSUs built?

That's a really good point, Larry - many, if not most of the higher current industrial SMPSs are water cooled.

I spotted this one on the web a few months ago: http://www.dynapower.com/Products/Po...wer_Supply.htm

Even if its 4000A rating (I guess that would require solid copper bars in place of any cable or wire) were only at 6V, that's 24kW of DC output...

Now all we need is a new form factor, in which only one voltage rail (perhaps 12v ?) is required from the power supply.

...

PS. And three phase supply in our houses.

PS2. And free electricity, from that French/German/Italian research fusion power plant they're planning to build.

[jonnyGURU]

Re: Watercooled Powersupplies

I'm going to say that the whole back of that unit is a water block.

I think we're talking about the difference between something designed to be watercooled and retrofitting watercooling to a power supply.

If you could build something from the ground up, watercooling a PSU is easy. Take something like the fanless Coolmax, for example. That thing is one giant heatsink. ALL of the heat generating components are mounted on the inside of the outer housing. It's built completely different from any other PSU I've ever seen. Now replace that mammoth heatsink with a water block. Cooling would be improved.

[hkivan]

Re: Watercooled Powersupplies

Also called 10Mohm water when it is pure H2O...

Water molecules are in dynamic equilibrium even
for 100 percent pure water. The rate of this equilibrium
will vary according to temperature and the presence of
impurities.


+ -
2H2O <------------> H3O + OH


Beware , if you want to make your PSU water cooled.

[hkivan]

Re: Watercooled Powersupplies

cation (+) : H3O+

anion (-) : OH -




Here is a self-made fanless PSU example :
http://myhard.yesky.com/21/1896521.shtml

[Howard]

Re: Watercooled Powersupplies



It doesn't seem like a challenge to use a heatsink similar to the Scythe Ninja on the back, instead of that low-efficiency heatsink. Slap all the MOSFETs on a copper bar inside the housing, run a few heat pipes through the bar, bend the pipes away from each other and slap some aluminum fins on the end (behind the housing).

Nice speakers, hkivan!

[Per Hansson]

Re: Watercooled Powersupplies

Galanized posted a link to johnnyGURU in another thread, found this link there:

DC-WCPW450: http://www.digitalcowboy.jp/products/wcpw450/


Now that is really really intelligent. Could really make watercooled powersupplies common. I'm just sorry I did not invent it

At 25800 Yen it is even pretty affordable!

[Per Hansson]

Re: Watercooled Powersupplies

Hope I do not take down your blog now johnnyGURU

http://www.techspot.com/ "DC-WCPW450: Innovative Watercooled Powersupply"

[jonnyGURU]

Re: Watercooled Powersupplies

Hope I do not take down your blog now johnnyGURU

I don't think so. Only time jonnyGURU.com goes down is when I get Slashdotted.

I asked my friend at Seventeam why he didn't hook me up with that unit. He told me that the unit is actually sent to a company in Korea (a kin to Zalman!?!?) that does the H2O mods and then it's sent to Japan.

I'm trying to see if I can find one to play with without having to go to Japan myself.

PS: Note the sinks in the PSU. Looks like they're skivved like a radiator as opposed to solid blocks of metal.

[Per Hansson]

Re: Watercooled Powersupplies

PS: Note the sinks in the PSU. Looks like they're skivved like a radiator as opposed to solid blocks of metal.

I beleive that the sinks you see is the radiator itself, probably a normal 120x120mm radiator with the fan ontop...

The Powersupply itself is probably aircooled, i.e. I do not think the Diodes and Mosfets are watercooled...

[jonnyGURU]

Re: Watercooled Powersupplies

Not sure. I mean... even if I were to do watercooling, I'd still have a fan on the unit, but spinning much slower.

EDIT:

Ack! You linked me on Techspot!?!?!?

Change the link to jonnyguru.blogspot.com. Tera-byte is going to KILL me!!!!

[tiresias]

Re: Watercooled Powersupplies

Not sure. I mean... even if I were to do watercooling, I'd still have a fan on the unit, but spinning much slower.

I think you're going to have to, realistically, since it won't be easy to watercool such components as the transformer and bridge rectifier. In fact, pretty much only the heatsink-mounted diodes (and transistors too) are going to be easy to adapt to a water-block.

[Per Hansson]

Re: Watercooled Powersupplies

Sorry for the linkeh, fixed now... (It was what I saw in that other thread though so...)

--

This is why I like this unit so much, I mean if it is built like I think then it is just a standard powersupply with a radiator and pump fitted inside it. Thus you do not need an extra fan for only the radiator and one for the PSU, because they now "share" airflow...

[jonnyGURU]

Re: Watercooled Powersupplies

It's cool. And as soon as you changed the link and I rebooted the server, I was able to get my mail!

[Howard]

Re: Watercooled Powersupplies

I don't think so. Only time jonnyGURU.com goes down is when I get Slashdotted.

I asked my friend at Seventeam why he didn't hook me up with that unit. He told me that the unit is actually sent to a company in Korea (a kin to Zalman!?!?) that does the H2O mods and then it's sent to Japan.

I'm trying to see if I can find one to play with without having to go to Japan myself.

PS: Note the sinks in the PSU. Looks like they're skivved like a radiator as opposed to solid blocks of metal.

To me it looks like those are heat pipes. Wishful thinking, maybe.