nanog mailing list archives
Re: cooling door
From: Patrick Giagnocavo <patrick () zill net>
Date: Sat, 29 Mar 2008 17:03:49 -0400
John Curran wrote:
Chilled water to the rack implies multiple CDU's with a colorful hose and valve system within the computer room (effectively a miniature version of the facility chilled water loop). Trying to eliminate potential failure modes in that setup will be quite the adventure, which depending on your availability target may be a non-issue or a great reason to consider moving to new space.
Actually it wouldn't have to be pressurized at all if you located a large tank containing chilled water above and to the side, with a no-kink, straight line to the tank. N+1 chiller units could feed the tank.
Thermo-siphoning would occur (though usually done with a cold line at the bottom and a return, warmed line at the top of the cooling device) as the warm water rises to the chilled tank and more chilled water flows down to the intake.
You would of course have to figure out how to monitor/cut off/contain any leaks. Advantage is that cooling would continue up to the limit of the BTUs stored in the chilled water tank, even in the absence of power.
Cordially Patrick Giagnocavo patrick () zill net
Current thread:
- cooling door Paul Vixie (Mar 29)
- Re: cooling door John Curran (Mar 29)
- Re: cooling door Jon Lewis (Mar 29)
- Re: cooling door Paul Vixie (Mar 29)
- Re: cooling door John Curran (Mar 29)
- Re: cooling door Patrick Giagnocavo (Mar 29)
- Re: cooling door John Curran (Mar 29)
- Re: cooling door Alex Pilosov (Mar 29)
- Re: cooling door Paul Vixie (Mar 29)
- Re: cooling door Wayne E. Bouchard (Mar 29)
- RE: cooling door michael.dillon (Mar 29)
- Message not available
- Re: cooling door Robert Boyle (Mar 29)
- Re: cooling door Henry Yen (Mar 30)
- Re: cooling door Paul Vixie (Mar 29)
- Re: cooling door Matthew Petach (Mar 30)
- Message not available
- Re: cooling door paul (Mar 30)
- Re: cooling door Deepak Jain (Mar 31)
- <Possible follow-ups>
- RE: cooling door Frank Coluccio (Mar 29)