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RE: [EnergyPlus_Support] ventilated facades



Yes.  It’s for the expected airflow path through the facade, which could differ from the overall height of the cavity (hence the separate input).

 

But if the upper and lower joint openings aren’t equal, then the neutral pressure level might be shifted away from the midpoint.  

 


From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of josep.sole@xxxxxxxxxxx
Sent: Tuesday, October 07, 2008 1:40 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: RE: [EnergyPlus_Support] ventilated facades

 

When the external pane is open joints is better to considerer the half height between joints?

 

 

Josep Solé
URSA Ibérica Aislantes SA
- URALITA
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De: EnergyPlus_Support@yahoogroups.com [mailto:EnergyPlus_Support@yahoogroups.com] En nombre de Griffith, Brent
Enviado el: martes, 07 de octubre de 2008 19:20
Para: EnergyPlus_Support@yahoogroups.com
Asunto: RE: [EnergyPlus_Support] ventilated facades

 

This is the height scale for buoyancy-driven ventilation.  It is usually the overall height of the cavity’s airflow path (in z-direction) divided by 2.  

 

 

 


From: EnergyPlus_Support@yahoogroups.com [mailto:EnergyPlus_Support@yahoogroups.com] On Behalf Of Catarina Carvalhal
Sent: Tuesday, October 07, 2008 3:50 AM
To: EnergyPlus_Support@yahoogroups.com
Subject: [EnergyPlus_Support] ventilated facades

 

Hi,

 

Can anyone tell me how a can calculate the value of the height from midpoint of lower opening to the Neutral Pressure Level (ΔHNPL) to input in the program ?

 

Thanks,

 

Catarina Carvalhal

 

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