[Bldg-sim] energy recovery and zone setpoints

Steve Mignogna smignogna at gmail.com
Thu Dec 27 12:44:16 PST 2007


In terms of the sub uses what decreases?  Sometimes your fan energy  
will increase so much that it over shadows the decrease in cooling and  
heating.


Sent from my mobile wireless device.

On Dec 27, 2007, at 2:34 PM, "Corinne Benedek"  
<corinne.benedek at arup.com> wrote:

> Hello All,
>
>
>
> I have a question about the way eQuest / DOE 2.2 decided whether it  
> should be using the heating or cooling zone setpoint for a  
> particular hour.
>
>
>
> I am modeling a PSZ system with energy recovery (enthalpy wheel with  
> mixed air reset and “modulate hx” capacity control) and am  
> finding that when I remove the energy recovery from the model, energ 
> y use decreases.  When I look at the hourly reports, there are a num 
> ber of hours where the “no erv” model is using a heating setpoint  
> and the “erv” model is using a cooling setpoint for the zone  
> particularly in the winter.  Any ideas about how this setpoint gets  
> chosen and why the ERV would be affecting it?
>
>
>
> Any ideas would be very much appreciated.
>
>
>
> Thanks!
>
>
>
> Corinne Benedek
>
>
>
> __________________________
> Graduate Mechanical Engineer
> LEED AP, EIT
>
> Arup
> 155 Avenue of the Americas
> New York, NY 10013
> Telephone: 212-229-2669
> Fax: 212-229-1056
> Direct: 212-897-1323
> Web: http://www.arup.com/
>
>
>
> ____________________________________________________________
> Electronic mail messages entering and leaving Arup  business
> systems are scanned for acceptability of content and viruses
> _______________________________________________
> Bldg-sim mailing list
> Bldg-sim at lists.onebuilding.org
> http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/bldg-sim-onebuilding.org/attachments/20071227/a599b096/attachment-0001.htm>


More information about the Bldg-sim mailing list