[Equest-users] (no subject)

[Bruce Easterbrook]

I would think the difference is in your ventilation.  Your proposed 
seems to be bringing in much more outside air.
Bruce

On 03/03/2010 08:10 AM, Karen Walkerman wrote:
> 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 
> <mailto: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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