[Equest-users] Equest, heat recovery and separate outside air systems

[Carol Gardner]

To give you a more detailed answer you'd have to let us know what system
type you are using and a bit more info. It'd be best if you attached your
.pd2 and .inp files for us to see.

Carol

On Mon, Sep 13, 2010 at 5:57 AM, Mohammad Almasri <malmasri at ems-int.com>wrote:

>  Dear Nicholas,
>
>
>
> If you mean that the consumption of the fans will increase when you add the
> Heat recovery wheel ; this because of leaving the DP on the default value (1
> in.wg). the default number is very high .
>
> You should either use the actual value or you can set this value as zero if
> you included the heat wheel effect on the fan KW/cfm .
>
>
>
> The eQUEST users archive have a good information about this issue , also
> the eQUEST help can provide a good support.
>
>
>
>
>
> Regards,
>
>
>
>
>
>
>
>
>
> [image: Masri_new]
>
>
>
> *From:* equest-users-bounces at lists.onebuilding.org [mailto:
> equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Nicholas Lander
> *Sent:* Monday, September 13, 2010 3:43 PM
> *To:* equest-users
> *Subject:* [Equest-users] Equest, heat recovery and separate outside air
> systems
>
>
>
> Folks,
>
> First up, thanks to Bill and David for answering my last question.
>
> My follow up is this:
>
>
>
> I'm trying to model a separate outside air system with heat recovery. So I
> set it up so all systems take outside air from my OA system (defined first).
> But if I then try to add heat recovery to the OA system total energy (due to
> cooling and fans) goes up.
>
>
>
> I'm guessing that a factor in this is that the air goes to all the other
> systems but then doesn't come back to the original OA system. (How to you
> specify that?) Although, cooling loads should still go down since exhaust
> air, whose quantify I specified, is still cooler than outside air.
>
>
>
> So, how do I show any saving with OA heat (or coolth) recovery, which I
> know will be huge?
>
>
>
> thanks in advance.
>
> Nick
>
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>


-- 
Carol Gardner PE
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