[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[EnergyPlus_Support] Re: Airflownetwork zone infiltration air change rate



Is there a way to output exfiltration? I didn't think so, but maybe Michael you know?

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "fokus55555" <michael.dahl.knudsen@...> wrote:
>
> Hi Annamaria,
> 
> I think it means that zone infiltration is the sum of airflow from outside into the zone through openings such as windows and cracks in the exterior surface. If there is no such flows (From the outside to the zone) then the infiltration is zero. But you could still have flows through the constructions and windows from the zone to the outside but then it would be called exfiltration.
> This would be the case if you have a fan blowing air into the zone creating a overpressure in the zone which forces air flow through the windows and cracks. Then the infiltration is zero but the exfiltration non-zero.
> 
> Best regards
> Michael
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Belleri Annamaria <annamaria.belleri@> wrote:
> >
> > Hi all!
> > I'm trying to understand the airflownetwork output "Airflownetwork zone infiltration air change rate (ACH)".  As written in the input output reference, it is "the sum of ventilation and crack flows from the exterior into the zone. "
> > The following sentence is: "Zone Infiltration Air Change Rate will be zero if  all flows through the zone's exterior surfaces are out of the zone."
> > Could anybody explain what does it mean and give some examples?
> > Thank you in advance!
> > 
> > _ _
> > 
> > Annamaria Belleri
> > Institute for Renewable Energy
> > 
> > EURAC research
> > Viale Druso 1, I-39100 Bolzano
> > t +39 0471 055 658
> > f +39 0471 055 039
> > m +39 333 8569899
> > annamaria.belleri@<mailto:petra.muster@>
> > www.eurac.edu<http://www.eurac.edu/>
> > 
> > This transmission is intended only for the use of the addressee and may contain confidential or legally privileged information.
> > If you receive this transmission by error, please notify the author immediately by mail and delete all copies of this transmission and any attachments.
> > Any use or dissemination of this communication is strictly prohibited by the "Privacy-Code", D.Lgs. 196/2003 and may lead to penal prosecution and liability for damages.
> > 
> > P Think before you print
> >
>




------------------------------------

Primary EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx

The primary EnergyPlus web site is found at:
http://www.energyplus.gov

The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/

Attachments are currently allowed but be mindful that not everyone has a high speed connection.  Limit attachments to small files.

EnergyPlus Documentation is searchable.  Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/EnergyPlus_Support/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/EnergyPlus_Support/join
    (Yahoo! ID required)

<*> To change settings via email:
    EnergyPlus_Support-digest@xxxxxxxxxxxxxxx 
    EnergyPlus_Support-fullfeatured@xxxxxxxxxxxxxxx

<*> To unsubscribe from this group, send an email to:
    EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/