RE: [EnergyPlus_Support] Using AFN for windows, but with default infiltration

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Subject: RE: [EnergyPlus_Support] Using AFN for windows, but with default infiltration

Date: Thu, 3 Oct 2013 18:06:12 +0200

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Thread-topic: [EnergyPlus_Support] Using AFN for windows, but with default infiltration

In AFN models you need to assume a lot of other hypothesis it is no easier than assume the zone infiltration rate.

Josep Solé
URSA Insulation S.A-

Sustainibility & Technical Manager

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De: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] En nombre de Oscar Hernandez
Enviado el: jueves, 03 de octubre de 2013 17:57
Para: EnergyPlus_Support@xxxxxxxxxxxxxxx
Asunto: Re: [EnergyPlus_Support] Using AFN for windows, but with default infiltration

If you want to model an infiltration value use the zone infiltration. The AFN its to predict the infiltrattion value when you don"t know it.

On 3 October 2013 17:42, Joe Huang <YJHuang@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:

I don't think the infiltration objects can be used in conjunction with the AFN. That would violate the mass balance of the AFN, wouldn't it?

Sent from my IPad

Joe Huang

On Oct 3, 2013, at 8:35 AM, Oscar Hernandez <eng.ohw@xxxxxxxxx> wrote:

Hi,
Use the zone infiltration.
Oscar
On Oct 3, 2013 2:48 PM, "allinson_louis" <allinson_louis@xxxxxxxxxxx> wrote:

Hi All

I am using AFN to model air flow through window openings that I am controlling using EMS

However, when the windows are closed the only infiltration is through cracks and the infiltration is much less than 0.1ach. I want to model a 'default' 0.1ach when the windows are closed, as this is a typical value used in simulations.

Is this possible?

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