On Tue, Jan 31, 2012 at 6:47 PM, Lux, Jim (337C)
<james.p....@jpl.nasa.gov> wrote:
> Maybe there's an issue with the weight and or flexible tubing on a swinging 
> door?
>
> The Hoffman products in Andrew's email, I think, aren't the kind that hang on 
> a door, more hang on the side of a large box/cabinet (Type 4,12, 3R 
> enclosure) or wall.
>
> They're also air/air heat exchanges or airconditioners (and vortex coolers.. 
> but you don't want one of those unless you have a LOT of compressed air 
> available)
>
> http://www.42u.com/cooling/liquid-cooling/liquid-cooling.htm
> shows "in-row liquid cooling" but I think that's sort of in parallel
>
> They do mention, lower down on the page, "Rear Door Liquid Cooling"
> But I notice that the Liebert XDF-5 which is basically a rack and chiller 
> deck in one, only pulls out 14kW.
>
> From DoE:
> http://www1.eere.energy.gov/femp/pdfs/rdhe_cr.pdf
>
> They refer the ones installed at LLBL  as RDHx units, but carefully avoid 
> telling you the brand or any decent data.  They do say they cost $6k/door, 
> and suck up 10-11kW/rack with 9 gal/min flow of 72F water.
>
> Googling RDHx turns up "CoolCentric.com"
> http://www.coolcentric.com/resources/data_sheets/Coolcentric-Rear-Door-Heat-Exchanger-Data-Sheet.pdf
>
> 33kW is as good as they can do.
>
> I also note that they have no fans in them.

Yes, these are the doors we have now.  I was trying to remain vendor
agnostic on the list.  We have them running well passively up to 25kw
now.
_______________________________________________
Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing
To change your subscription (digest mode or unsubscribe) visit 
http://www.beowulf.org/mailman/listinfo/beowulf

Reply via email to