[Equest-users] ERV + Evap Cooling Modeling in eQuest

[Wahid Hamed]

Thanks Bill for your input.

I attached here *.pd2 file along with *.inp file agin.

I am using dummy space/zone method without any internal load, only the OA
and exhaust flow rates through ERV have been modeled within the dummy zone
and ERU system.



Regards,

Wahid






Wahid H. Mohamed, LEED AP BD+C
Mechanical Project Engineer, Energy Modeler
Saudi Diyar Consultants
www. <http://www.diyar.com>
<http://www.diyar.com>diyar.com<http://www.diyar.com>
 ****

 (+966)-5467 622 67


On Mon, Sep 16, 2013 at 4:46 PM, Bishop, Bill <bbishop at pathfinder-ea.com>wrote:

>  Wahid,****
>
> ** **
>
> It would be easier for others to look at your model if you also included
> the .pd2 file.****
>
> Based on your input file, you are modeling two ERVs and you are trying to
> use the “dummy space” method. I do not use this method (yet) but others may
> have suggestions for you.****
>
> You are not going to get realistic results if I am interpreting your input
> file correctly:****
>
> **-          **Your two dummy spaces/zones have no occupants, equipment
> or lighting loads, or envelope loads (only OA)****
>
> **-          **You have specified zonal exhaust equal to the OA, which
> will simulate as no return air to the ERV****
>
> ** **
>
> Regards,****
>
> Bill****
>
> ** **
>
> *William Bishop, PE, BEMP, BEAP, LEED AP **|** Pathfinder Engineers &
> Architects LLP*
>
> Senior Energy Engineer****
>
> ** **
>
> 134 South Fitzhugh Street                 Rochester, NY 14608****
>
> T: (585) 325-6004 Ext. 114            F: (585) 325-6005****
>
> bbishop at pathfinder-ea.com <wbishop at pathfinder-ea.com>
> www.pathfinder-ea.com****
>
> P   Sustainability – the forest AND the trees. P   ****
>
> ** **
>
> *From:* equest-users-bounces at lists.onebuilding.org [mailto:
> equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Wahid Hamed
> *Sent:* Monday, September 16, 2013 4:04 AM
> *To:* equest-users at lists.onebuilding.org
> *Subject:* [Equest-users] ERV + Evap Cooling Modeling in eQuest****
>
> ** **
>
> Dear All,****
>
>  ****
>
> I am using eQuest to model an Hotel building in a very hot, dry climate
> zone which is has a great opportunity for energy saving when using
> evaporative cooling in summer. I have modeled direct evaporative cooling
> for 100% outdoor air handling unit along with sensible recovery wheel to
> recover the exhaust air stream energy into the outdoor air.****
>
>  ****
>
> When I run the model simulation and got into the "ERV Energy Recovery
> Summary" and "SUPL Evap/Desicant Cooling" reports, I could not interpretate
> the outputs to understand if the system is working appropriately or not.**
> **
>
>  ****
>
> I wonder if anyone can help me and provide me with some guidance or
> example on ERV and Evap Cooling systems input and control setup as well as
> the system output reports interpretation and what I need to do to get my
> model run correctly reflecting the real system operation and predicted
> saving.****
>
>  ****
>
> - My model *.inp file is attached for your reference.****
>
>
> ****
>
> Regards,****
>
> ** **
>
> Wahid H. Mohamed, LEED AP BD+C****
>
> Mechanical Project Engineer, Energy Modeler ****
>
> Saudi Diyar Consultants****
>
> www. <http://www.diyar.com>diyar.com <http://www.diyar.com> ****
>
>  (+966)-5467 6*22 67*****
>
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