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Re: [EnergyPlus_Support] Error and crash in this .idf
Thanks Matthew,
that's the point. I changed the boundary conditions to Outside and the error now is fixed. Of course the surfae has no more a ventilation layer but, fortunately this changing is an acceptable approximation for the model (it's a small surface of an little unconditioned zone on the roof, a storage room) but really this aspect makes me a bit upset.
Thank you all :)
Marco
On Tuesday, March 11, 2014 9:52 PM, Matthew Larson <matthew.larson@xxxxxxxxxxxxxxxxxxxxx> wrote:
Marco,
The error seems to be in the BuildingSurface:Detailed P4:P4%A12ZN6U_ROOF_6_0_0 Outside Boundary Condition being OtherSideConditionsModel. This is typically used if the surface has a transpired collector or vented PV panel. Changing the Outside Boundary Condition to Outside would correct it but I don't know the details of the surface or model. For detailed documentation regarding the AirFlowNetwork, you can use the following link: <http://bigladdersoftware.com/epx/docs/8-1/input-output-reference/page-029.html>http://bigladdersoftware.com/epx/docs/8-1/input-output-reference/page-029.html. ; This is the HTML version of the E+ documentation which makes it easier to browse and search. I too unfortunately am not familiar with the DesignBuilder way of modeling.
Matthew Larson
Big Ladder Software
2549 Irving Street
Denver, CO 80211
<http://bigladdersoftware.com/>http://bigladdersoftware.com
On Tue, Mar 11, 2014 at 1:31 PM, Marco Aldegheri <<mailto:m.aldegheri@xxxxxxxxx>m.aldegheri@xxxxxxxxx> wrote:
>
Thanks for the reply.
> Maybe my inexperience makes me uneasy... I checked the surface in the buildingsurface:detailed list and it is correcly matched with the external boundary conditions (cavity)... In addition to this i don't know where to check and in particular how to check. I created the model in designbuilder and the surface is parto of a common slope roof...
>
> Any suggestion?
>
>
> On Tuesday, March 11, 2014 8:00 PM, Edward G. Lyon <<mailto:eglyon@xxxxxxx>eglyon@xxxxxxx> wrote:
>
The error message seems reasonably clear, E+ doesnâ??t think this surface has air around it. Make sure the surface description calls this a roof and not a floor and that it is exposed to the outside. Check the orientation, although that typically generates other warnings.
Also check your other airflownetwork objects, you need a control, a crack type, and an outside surface. E+ will sometimes generate error messages when related objects are missing or incorrectly specified.
Ned Lyon, P.E. (MA, WV)
> Staff Consultant
SIMPSON GUMPERTZ & HEGER
> 781.907.9000 main
> 781.907.9350 direct
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From: <mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:<mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of <mailto:m.aldegheri@xxxxxxxxx>m.aldegheri@xxxxxxxxx
> Sent: Tuesday, March 11, 2014 2:20 PM
> To: <mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] Error and crash in this .idf
Dear friends,
>
> I don't know why but after adding a vented roof in this .idf (which worked without problems) Energy plus crashes during a run and the error log shows this:
> ** Severe ** GetAirflowNetworkInput: AirflowNetwork:MultiZone:Surface: Invalid Surface Name = P4:P4%A12ZN6U_ROOF_6_0_0
> ** ~~~ ** This type of surface (has ground, etc exposure) cannot be used in the AiflowNetwork model.
>
> I tried to check but I don't understand how to fix this error... It seems to be all right...
> Moreover, I had problems uploading the idf so the only way is to download it from the link below.... Excuse me for that...
> <http://www.speedyshare.com/dPj34/Modello-ITEA-10-03.idf>> http://www.speedyshare.com/dPj34/Modello-ITEA-10-03.idf (click on the big title up)
>
> Best regards,
> Marco
>
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