[time-nuts] OT question about liquid cooling

Tom Harris celephicus at gmail.com
Wed Oct 3 19:35:41 EDT 2012

My day job is large industrial power supplies. The test racks have large
resistive loads with big fans exhausting to the outside. Cheap & simple.
Safety is by several strings of temperature cutouts wired in series. We
usually get work experience students in to wire them up.

Tip: to make a funny valued power resistor, just get the next value up and
wrap some nichrome wire around it to bring it down to the correct value.

I met an engineer who made a battery charger for one of our submarines.
This was tested by putting the load bank in a dumpmaster, and keeping it
filled up with water using a firehose!

On 4 October 2012 02:01, Javier Herrero <jherrero at hvsistemas.es> wrote:

> Hello all,
> Please excuse me for the OT, but since this list is plenty of very
> knowledgeable colleagues, I'm tempted to ask...
> I need to cool several resistive loads, in the order of 5kW, and I plan to
> use a cold plate and a liquid-to-liquid heat exchanger like the Lytron
> LCS-20, but this unit is quite big, and an overkill (it has 20kW
> capability).
> If someone could suggest me a smaller liquid-to-liquid heat exchanger, and
> preferably a rack mount unit (and share any experience), it would be most
> welcome.
> Since this has not too much to do with time and frequency, please answer
> off list.
> Thank you very much! Best regards,
> Javier
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Tom Harris <celephicus at gmail.com>

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