[Equest-users] (no subject)

[Karen Walkerman]

with the VAV system, it is likely that your boiler is being used to re-heat
cool air.  This can account for significant additional boiler energy use, as
well as boiler energy use in the summer.  If this is an Appendix G baseline,
take a look at the controls required for water temperature.  Also, due to
the high increase in boiler energy use between the proposed and baseline,
I'm guessing there may be a space that requires significant cooling all
year.  If this is the case, you may be required to provide a separate
cooling system for this space.

--
Karen

On Wed, Mar 3, 2010 at 6:33 AM, Paul S. <sep.paul at gmail.com> wrote:

> I've got the result of the end use between baseline and proposed
> design, everything seems logical except the boilers consumption.
> Boilers are the same type in the baseline and proposed design.
>
> Boilers in the baseline are sized by eQUEST, in the proposed boilers
> are given calculated by the engineers.
>
> The only difference is in the proposed design we used air-cooled
> chillers and FCU and for the baseline water-cooled and packaged VAVs.
>
> Any suggestion about this difference in BTU consumption. And why in
> baseline desing in June July we have BTU consumption while in the 2
> designs have same temperatures and same schedules.
>
> thanks
>
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