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Re: [EnergyPlus_Support] Error and crash in this .idf




Well, at the moment I'm already using the e+ launcher. That's not a problem...
Maybe I was not vary clear in my first post.

I created the original model with DB and than I run it in E+ with the launcher, everything was ok. The model crated via DB had not a naturally vented roof. I added it through E+ launcher. I'm pretty sure about how to do this operation, I tried it successfully other times. Unfortunately, after having implemented that on the model I have this error. The word "cavity" is the name I chase for the object surfaceproperty:othersideconditionmodel.


On Tuesday, March 11, 2014 8:31 PM, Marco Aldegheri <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 <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 
617.285.2162 mobile 
781.907.9009 fax
www.sgh.com

From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of m.aldegheri@xxxxxxxxx
Sent: Tuesday, March 11, 2014 2:20 PM
To: 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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