Re: [EnergyPlus_Support] thermal bridging

Thank you Josep,

Your second option, it is exactly what I am doing.

Regards,

Emanuele

2009/12/22 <josep.sole@xxxxxxxxxxx>

For some thermal bridges (ie studs in a frame construction) you can use the ?composite walls constructions? see pag 154 in I/O reference

For linear thermal bridges (ie intersection between floor and façade) an alternative way is introducing ?small? sub-surfaces (type door) having the same thermal transmision than you can calculate with a 2D (or 3D) model.

It will be great if on E+ was possible to include directly lengths with its linear thermal transmittance.

Josep Solé
URSA Insulation S.A- URALITA
European Sustainibility & Technical Manager
Móvil +34 606 42 32 14

www.ursa.es

www.ursainsulation.com

www.uralita.com

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De: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] En nombre de Emanuele Naboni
Enviado el: lunes, 21 de diciembre de 2009 14:55
Para: EnergyPlus_Support@xxxxxxxxxxxxxxx
Asunto: [EnergyPlus_Support] thermal bridging

Dear All,

Just a question: how is EnergyPlus able to take in account thermal bridging?

I read trough the reference guide that for example for windows there is a coefficient to consider different conductance properties between the center of the pane and the area close to the external frame.

Are there any calculation that takes this in account when 2 different assembly are attached? what could be a good way to consider both geometric and thermal bridging.

Thank you.

Emanuele

--
Emanuele Naboni

per l'Italia: 346.4133337
from US: +39.346.4133337
skype: emanuelenaboni
www.emanuele-naboni.com
sustainable design consultant - consulente per la sostenibilita' di tecnologie, edifici e citta'
MArch, PhD Building Science, LEED AP, EU licensed architect

Please consider the environment before printing this email.

--
Emanuele Naboni

per l'Italia: 346.4133337
from US: +39.346.4133337
skype: emanuelenaboni
www.emanuele-naboni.com
sustainable design consultant - consulente per la sostenibilita' di tecnologie, edifici e citta'
MArch, PhD Building Science, LEED AP, EU licensed architect

Please consider the environment before printing this email.