[Bldg-sim] CFMs vs CFMd

[Carol Gardner]

Hi Carolyn,

I'll take a crack at this. I am in agreement with you that CFMs comes
from/is used for the baseline model. If you look at the Option 2 on Table
6.5.3.1a you will notice the variable designated as A. Right below the same
Table, A is defined. It includes CFMd, which is information you would only
have from a proposed design building. So, I would say instead: CFMs,
modified using an Option 2 formula, which take into consideration CFMd when
appropriate, is what you use for your proposed design.

Hope this makes sense. As always, I am open for correction.

Carol

On Tue, Apr 13, 2010 at 12:52 PM, Caroline Fluhrer <cfluhrer at rmi.org> wrote:

> Hi there,
>
> For 90.1-2007 Table 6.5.3.1.1a & b, I am under the impression that "CFMs"
> comes from the baseline energy model ... should "CFMd" also come from your
> baseline model or should this be the actual proposed design flow through
> each device?
>
> Thank you,
> Caroline
>
> --
> Caroline E. Fluhrer
> Built Environment Team
> Rocky Mountain Institute
>
> 1820 Folsom St.
> Boulder, CO 80302 USA
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> Email: cfluhrer at rmi.org
>
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