[Equest-users] Modeling DOAS, extremely high heating energy

[Michael Campbell]

Thank you Patrick!

On Tue, Jan 23, 2018 at 3:05 PM, Lapierre, Patrick <plapierre at bpa.ca> wrote:

> Your heating consumption is off chart because eQUEST sized the capacity of
> your system to an absurd value, resulting in an abysmal part load ratio.
> I’m not sure why eQUEST overrides the capacity you entered though.
>
>
>
> To fix it, you need to specify the flow of your DOAS (either in the system
> and the zone) and ensure they work at 100% OA.
>
>
>
> See modified files for system RTU-1 which runs fine now.
>
>
>
>
>
> [image: Bouthillette Parizeau] <http://www.bpa.ca/>
>
> *Patrick* *Lapierre**_ing. BEMP*
>
> plapierre at bpa.ca | t: 5143833747x2807 <(514)%20383-3747>
>
>
>
> *De :* Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] *De
> la part de* Michael Campbell via Equest-users
> *Envoyé :* 23 janvier 2018 14:49
> *À :* equest-users <equest-users at lists.onebuilding.org>
> *Objet :* [Equest-users] Modeling DOAS, extremely high heating energy
>
>
>
> Hi eQUEST Users,
>
> I am modeling a DOAS system.
>
> I've used the dummy zone approach and I've set thermostat schedules for
> the dummy zones which are intended to control the supply air temperature of
> the DOAS systems.
>
>
>
> I have checked all my inputs and believe they are correct, however I am
> getting extremely high energy usage from the DOAS units.
>
> I'm hoping someone can take a few minutes to review my model and let me
> know what is causing this high heating energy?
>
>
>
> My files are attached.
>
>
>
> Thank you,
>
> Mike
>
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