nanog mailing list archives

Re: Thermal Load Calcs (summary)


From: Greg Skafte <skafte () worldgate com>
Date: Sat, 5 Jun 1999 18:02:20 -0600


For peoples future reference  for devices where you can't find Heat Dissapation
/Thermal Load etc.  I've finally found a couple of numbers that you can use

        1 Watt = 3.5->3.7  B.T.U/Hour 

the refernces varied.  Size of Room is irrelavent for the thermal load, it is
only relevent when sizing the fan in the chiller.  As an additional note 
most chillers are sold in tons ie 1ton,2 ton,65 ton.  A ton is defined as
12,000 B.T.U/Hour of cooling capacity.  

Most sites have Thermal loads only for the "big" gear not the little stuff so
thanks to the people who forwarded the URLS that lead me in the right direction.


Quoting Greg Skafte (skafte () worldgate com)
On Subject: Thermal Load Calcs
Date: Fri, Jun 04, 1999 at 04:07:12PM -0600


We are getting ready to move our equipment from a place that had its own
air conditioning to a new NOC. Is there anyone who has any references to
sites with such info.  Conversely can someone tell me the thermal loads 
of 
      cisco 2500
      cisco 2600
      cisco 4700
      cat   1900
      cat   2900
      cat   5000
      apc  smartups 1400
      250w atx pc's
      sun ultra 450 w/ 2 ps

-- 
Email: skafte () worldgate com          Voice: +780 413 1910    Fax: +780 421 4929
   #575 Sun Life Place * 10123 99 Street * Edmonton, AB * Canada * T5J 3H1 
--                                                                      --
When things can't get any worse, they simplify themselves by getting a whole
lot worse then complicated. A complete and utter disaster is the simplest
thing in the world; it's preventing one that's complex.       (Janet Morris)

-- 
Email: skafte () worldgate com    Voice: +780 413 1910    Fax: +780 421 4929
   #575 Sun Life Place * 10123 99 Street * Edmonton, AB * Canada * T5J 3H1 
--                                                                        --
When things can't get any worse, they simplify themselves by getting a whole
lot worse then complicated. A complete and utter disaster is the simplest
thing in the world; it's preventing one that's complex.       (Janet Morris)



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