[bldg-sim] Plug loads

[JRR]

I wouldn't bet on it for dormitories ......
but classroom and admin buildings seem OK for the same or reduced loads.

John R Ross III  P.E.
Westwind  Corporation
Vienna,  VA   22182-1958
703-255-4712  Voice

Denis Bourgeois wrote:

>Mark,
>
>" [...] plug loads in higher education facilities have been relatively 
>constant the last five years. The basis is that even though there are 
>(probably) more computers on campus, the improved efficiency has offset the 
>higher numbers so net growth on load has been negligible.  Does anyone know 
>of any data or studies that may support or refute this? Thanks in advance."
>
>You may want to look up the following study:
>
>1093-RP, "Compilation of Diversity Factors Schedules for Energy and Cooling 
>Load Calculations" 
>Bass Abushakra, David Claridge and Jeff Haberl of Texas A&M University. 
>abstract: "The results of this project, available on CD-ROM, compile a library 
>of schedules and diversity factors for energy and cooling loads in office 
>buildings. Forty-six diversity factors were derived from measured data from 
>32 office buildings. The results are compatible with DOE-2, BLAST and Energy 
>Plus simulation programs." (taken from ASHRAE web site)
>
>The study is very recent (2004), so you could compare the updated plug load 
>profiles against whatever you have on hand. If memory serves me right (don't 
>actually have the 1093 documents in front of me as I'm writing this), updated 
>plug load diversity factors during peak hours in offices WERE lower than 
>what's used by default for compliance purposes in Canada (i.e. energy code; 
>incentive programs, etc.), e.g. 90% in the MNECB ... Of course, you'd have to 
>compare nominal load densities as well, but overall I think your hunch is 
>right.
>
>You may also want to look up the following for a more detailed view on IT 
>equipment load comparison:
>
>http://repositories.cdlib.org/lbnl/LBNL-50508/
>
>Hope this helps,
>  
>



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