[Amps] SS amps watercooling - was PowerGenius XL

[John Simmons]

The PC industry has tons of watercooling stuff for use around 
electronics, but I haven't found a resource on how much heat the various 
sized radiators will transfer. As others have pointed out, I'll need to 
dissipate around 5000 btu/hr. Doing some math, 5000 btu=1,260,000 
calories. If I assume a 50 C rise (22C ambient to 75C), then 
1,260,000/50=25,200 grams raised by 50C. That is about 888 ounces or 7 
gallons of water.

A good 120mm computer fan such as by Noctua, will deliver 59 cfm. 
Radiators are available that mount 4 of these fans. How do we determine 
if that will exhaust enough heat?

Another way to do this is using a hydronic kick space heater. A 4"x19" 
unit with fan is about $180, and will exhaust 3300-10360 btu/hr 
depending on fan speed. The flow rate is 1-3 gpm. I have a similar unit 
in my home hydronic heat system, and it has been running during heating 
season (Nov-Apr) for over 20 years without a problem.

Second question: What size copper cooling block would be needed to 
remove the heat from 2 BLF188XRs? And how to mill the channels for best 
heat exchange into the coolant?

John NI0K
> Roger (K8RI) <mailto:k8ri at rogerhalstead.com>
> Friday, February 17, 2017 11:53 AM
> Water is far easier to clean up, leaves less mess, and is more 
> efficient at heat transfer.  The vapor phase cooling used in computer 
> CPU cooling is efficient, but less tolerant of leaks, difficult to 
> charge, and works at lower temps..
>
> Vapor phase water cooling is very efficient (already covered by 
> another poster) for tubes as vaporizing 1 gram (1 cc) of water uses 
> 539 calories (at 100 C - too hot for SS), while heating or cooling 
> water 1 deg C takes 1 calorie.
> Vapor phase cooling has no moving parts except for a fan(s) at the 
> radiator.
>
> 73, Roger (K8RI)
>
>
>
>
>
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> Joe <mailto:nss at mwt.net>
> Friday, February 17, 2017 9:04 AM
> How about instead of "Water" use Mineral or transformer oil?
>
> Less chance of contamination...
>
> Joe WB9SBD
> Sig
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> Chris Wilson <mailto:chris at chriswilson.tv>
> Friday, February 17, 2017 9:01 AM
> Hello John,
>
> On Wednesday, February 15, 2017,  you wrote:
>
>> I'm in the planning stages  of a solid state amp. I am considering water
>> cooling... looking for pointers on design ideas, parts suggestions, etc.
>
>> 73, John NI0K
>
> http://www.pe1rki.com/watercooling.html  has  some  nice  water cooled
> heat sinks, and machines nice copper spreader plates if you don't have
> access to a milling machine
>
>
>
> John Simmons <mailto:jasimmons at pinewooddata.com>
> Tuesday, February 14, 2017 7:04 PM
> I'm in the planning stages  of a solid state amp. I am considering 
> water cooling... looking for pointers on design ideas, parts 
> suggestions, etc.
>
> 73, John NI0K
>
>
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