I will try to explain it in more detail
In order to model a Ventilated Façade in E+ version 6 I’ve used the following method
a) In “BuildingSurface:Detailed” I’ve introduced “OtherSideContitionsModel” in Outside Boundary Conditions (name introduced in step b:)
b) I’ve introduced a “SurfaceProperty:OtherSideConditionsModel” object
c) I’ve introduced a “SurfaceProperty:ExteriorNaturalVentedCavity” (name introduced in step b: and surfaces introduced in step a: )
This method works perfectly under V6 with or without window in the façade but in V7.2 and V8 only works if there are no windows on the façade.
In V7.2 or V8 if there are any window on the façade the following severe error appears:
** GetSurfaceData: Subsurface="VENTANASUR" exterior condition [ExternalEnvironment] in a base surface="SURSALON" with exterior condition [OSCM]
I’m doing something wrong in V8? or a bug appears in the transition from V6 to V7.2 or V8?
Josep Solé
URSA Insulation S.A-
Sustainibility & Technical Manager
Móvil +34 606 42 32 14
P URALITA / URSA se compromete con el ahorro de energía. Antes de imprimir este mensaje asegúrese de que es necesario.
De: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] En nombre de Jim Dirkes
Enviado el: sábado, 12 de octubre de 2013 16:14
Para: EnergyPlus_Support@xxxxxxxxxxxxxxx
Asunto: [EnergyPlus_Support] RE: Ventilated façades
Josep,
Try to answer your own question � this is impossible because you have given no iinformation other than saying “something” seemed to work in v6 and no longer works.
If you are interested in knowing whether there is a bug in V8, then you have shared enough information. If you want help to solve the problem, more information is required!
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of josep.sole@xxxxxxxxxxx
Sent: Saturday, October 12, 2013 8:03 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Ventilated facdes
I found some troubles modeling ventilated facades in newer versions 7.2 & 8 (in version 6 it works properly)
I model the surface wit “Other Side ConditionsModel” I include the “Surface property Other side conditions model” and “Exterior Natural Vented Cavity” objects and the model runs ok if there are no windows in the surface
But:
if there are windows on the surface, I got the following severe error. ** GetSurfaceData: Subsurface="VENTANASUR" exterior condition [ExternalEnvironment] in a base surface="SURSALON" with exterior condition [OSCM]
Is it a bug in V8.0? or I m doing something wrong?
Josep Solé
URSA Insulation S.A-
Sustainibility & Technical Manager
Móvil +34 606 42 32 14
P URALITA / URSA se compromete con el ahorro de energía. Antes de imprimir este mensaje asegúrese de que es necesario.
De: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] En nombre de anisur1294@xxxxxxxxx
Enviado el: viernes, 11 de octubre de 2013 2:58
Para: EnergyPlus_Support@xxxxxxxxxxxxxxx
Asunto: [EnergyPlus_Support] Unit Conversion for ESO file
Hello,
I am optimizing the energy performance by coupling EnergyPlus with GenOpt. GenOpt collects the results from ESO output file where the unit is set to JOULE by default. As the values are very big number, GenOpt shows error for that. I converted SI unit to IP unit from EpLauncher option, but it works only for manual runs. For automatic runs with GenOpt, it goes to the default SI setting automatically.
Is there anyway that I can change the unit to GigaJoule/kWh/Btu in IDF file that will change the unit in ESO file?
Or Is there anyway that I can set it that for automatic runs with GenOpt also it will convert to IP?
Any suggestion will be appreciated.
Anisur Rahman
PhD Candidate, IIT Chicago
Energy Analyst, Buro Happold Chicago
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