[BLDG-SIM] Internal Loads for Office Buildings

[Jason Glazer]

You might want to check out some of the publications LBNL 
has been doing in the area of office equipment at:

 http://enduse.lbl.gov/

The most recent report shows that less than half of the 
computers were turned off at night.

Jason

On 5 Dec 2001, at 7:57, Brian Fountain wrote:

> I recall a study by the British Columbia Energy Management
> Task Force that monitored the current draw on outlet
> circuits in a couple of buildings in the mid-1990's.  As
> suggested below, it found plug loads to be in the order of
> 0.75 to 0.85W/ft² during the day.  The interesting part was
> the unoccupied plug loads of around 0.35W/ft².
> 
> 
>   -----Original Message-----
>   From: postman at gard.com [mailto:postman at gard.com]On Behalf
>   Of Tom Anderson Sent: Wednesday, December 05, 2001 5:47 AM
>   To: BLDG-SIM at gard.com Cc: BLDG-SIM at gard.com Subject:
>   [BLDG-SIM] Internal Loads for Office Buildings
> 
> 
>   If by high tech buildings you are referring to a modern
>   office buildings,
> then loads from desktop PC's, monitors, printers, copiers,
> etc. typically will be about .5 watts per square foot, but
> may range from .5 to 1.0 watts per foot.  Note the actual
> power use by such equipment is well below the nameplate
> power data.
>   Refer to published ASHRAE papers, starting in 1994,
>   authored by Chris
> Wilkins, who reported on extensive monitoring of such loads
> in real world office buildings.
> 
>   Lighting loads, refer to 90.1-1999 for maximum power
>   densities permissible
> for office occupancies.  But lighting designers who apply
> efficient fixtures for interior lighting design can easily
> achieve excellent illumination levels using well below 1.0
> watts per foot.
> 
>     Thomas E. Anderson
>     President
>     Cx Associates, Ltd.
>     Building Commissioning Specialists
>     http://www.cx-assoc.com
>     933 Road 101
>     Jeffersonville, Vermont 05464 USA
>     hvac at cx-assoc.com
>     Tel: 802-644-5616 Fax: 802-644-6797
>   Samuel Hassid wrote:
> 
>       what is the accepted value for internal loads in a
>       high tech building
> ?
>     ======================================================
>     You received this e-mail because you are subscribed to
>     the BLDG-SIM at GARD.COM mailing list.  To unsubscribe from
>     this mailing list send a blank message to
>     BLDG-SIM-UNSUBSCRIBE at GARD.COM
> 
> 
> 
> ======================================================
> You received this e-mail because you are subscribed 
> to the BLDG-SIM at GARD.COM mailing list.  To unsubscribe from
> this mailing list send a blank message to
> BLDG-SIM-UNSUBSCRIBE at GARD.COM


=========================================================
Jason Glazer, P.E.  mailto:jglazer at gard.com  847 698 5686
GARD Analytics - http://www.gard.com/
1028 Busse Highway, Park Ridge, IL 60068
Building Energy Simulation and Analysis
List Administrator for 90.1, GPC18 and BLDG-SIM

===========================
You received this e-mail because you are subscribed 
to the BLDG-SIM at GARD.COM mailing list.  To unsubscribe 
from this mailing list send a blank message to 
BLDG-SIM-UNSUBSCRIBE at GARD.COM