[Beowulf] rear door heat exchangers

Lux, Jim (337C) james.p.lux at jpl.nasa.gov
Tue Jan 31 18:47:18 EST 2012


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.


-----Original Message-----
From: beowulf-bounces at beowulf.org [mailto:beowulf-bounces at beowulf.org] On Behalf Of Michael Di Domenico
Sent: Tuesday, January 31, 2012 12:56 PM
To: Beowulf Mailing List
Subject: [Beowulf] rear door heat exchangers

i'm looking for, but have not found yet, a rear door heat exchanger with fans.  the door should be able to support up to 35kw using chilled water.  has anyone seen such an animal?

most of the ones i've seen utilize a side car that sits beside the rack.  unfortunately, i'm space limited and i need something that will hang on the back of the rack.
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