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RE: [EnergyPlus_Support] Design Builder vs Energy Plus - Maximum U-Value
In order to introduce the thermal bridges impact I usually use a "small" sub-surface in aproximatively at the same position than in the building.
For the thermal bridging construction I use a very simple; only one layer defined by it's R value pre calculated in manner that the thermal transmittance resultant is the same considering this construction and it's surface than the linear thermal transmittance and it's length.
I didn't found any problems to calculate in this way due to U (or R) value.
In my opinion it's not possible to do this approach on DesignBuilder but yes on Energy+
Josep Solé
URSA Ibérica Aislantes SA - URALITA
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De: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] En nombre de André Lopes
Enviado el: martes, 19 de febrero de 2008 20:08
Para: EnergyPlus Support
Asunto: [EnergyPlus_Support] Design Builder vs Energy Plus - Maximum U-Value
Hi
What can be the maximum U-Value that the Design Builder or the Energy Plus can calculate? See the attacched picture.
The objective is to put in 1 square meter per Zone the losses due to the Thermal Bridges (Linear and Superficial), so in this case the U-value can be 200 or 300 W/m2.ºK
Regards
A L
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