Re: [EnergyPlus_Support] Zone Infiltration - Design Flow Rate

[Lixing Gu <gu@xxxxxxxxxxxx>]

If you want to use the AirflowNetwork model, it requires more objects to 
simulate multizone airflows. The AirflowNetwork:Multizone:Surface:Crack 
objects alone will not perform AirflowNetwork simulations. The example input 
files may give you a clue how to build the inputs: AirflowNetwork3zVent.idf 
and AirflowNetwork3zVentAutoWPC.idf. You may find these files in the example 
subdirectory.

By the way, when simulation of the AirflowNetwork model is performed, it 
overrides the ZoneInfiltration:DesignFlowRate objects.

Lixing
----- Original Message ----- 
From: "jkneifel_florida" <jkneifel_florida@xxxxxxxxx>
To: <EnergyPlus_Support@xxxxxxxxxxxxxxx>
Sent: Tuesday, September 01, 2009 10:06 AM
Subject: [EnergyPlus_Support] Zone Infiltration - Design Flow Rate


> Does specifying a ZoneInfiltration:DesignFlowRate override an 
> AirflowNetwork:Multizone:Surface:Crack?
>
> I ran a simulation with an infiltration design flow rate for each zone. I 
> then added a "crack" around the windows to simulate poorly sealed windows. 
> I made sure to define the reference conditions for the crack and specified 
> which surfaces (all windows) would have the "crack". But the simulations 
> results were unchanged. My first thought is that the design flow rate 
> overrides the "crack". I have been reading through the documentation, but 
> I have not been able to find the answer as to why this occurred.
>
> Would it be appropriate to just increase the design flow rate for the zone 
> to include the additional infiltration?
>
> Thanks.
>
>
>
>
>
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