[bldg-sim] ASHRAE 90.1 2004 fan system efficiency
David S Eldridge
DSE at grummanbutkus.com
Fri Dec 8 12:40:43 PST 2006
I think you have got it, the ECB Chapter 11 for code compliance, says to
use the same kW/cfm in both models, with an upper limit on the baseline
building fan system's power consumption.
If you are performing a LEED EAC1 calculation (or other performance
rating), Appendix G will use the baseline model fan system at the power
consumption limit regardless of the design system using more or less
power.
David
> -----Original Message-----
> From: bldg-sim at gard.com [mailto:bldg-sim at gard.com] On Behalf
> Of shruti narayan
> Sent: Friday, December 08, 2006 2:21 PM
> To: bldg-sim at gard.com
> Subject: [bldg-sim] ASHRAE 90.1 2004 fan system efficiency
>
> I am just trying to establish whether ASHRAE 90.1 2004
> requires the proposed building to use the same fan system
> efficiency (kW/cfm) as the baseline (Refer to page 69 of the
> standard) for the Energy cost budget methodology.
>
> Have there been any previous variances on this?
>
> Any direction will help.
>
> Thanks
>
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