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

[Mohammad Almasri]

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, 

 

 

 

 

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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