David,
It's clear now, thanks. I need to insulate the external wall, and for that I have to compare the impact of insulation on thermal comfort, for two cases: 1. if the insulation (rock wool for instance) is placed inside the wall, 2. if the insulation is placed back of the wall (external side). Is it possible? How to do so? The problem caused by the difference between the thermal insulation from the outside and the thermal insulation from the inside is the effect of the thermal bridges ...
Note: I only use Trnsys3d for modeling my building.
I appologize for my english if it's not clear enough cause I only practice this in french. Thanks.
Best,
Ismail
2017-04-13 12:22 GMT+00:00 David BRADLEY <d.bradley@tess-inc.com>:
Issmail,
The u value is only one measure of a wall's performance. The other significant part is where the mass is located in the wall. Type56's wall model takes both into account. The u-value is displayed because it is a common measure of wall performance.
kind regards,
David
On 04/13/2017 05:12, Issmail OUHALLOU via TRNSYS-users wrote:
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Dear Trnsys users,
I am wondering if it is possible to compare the thermal performance of thermal insulation on both sides of the wall (internal & external), using TRNBuild and Trnsys3d (TRNSYS 17)! When I change the order of materials, including insulation material, in "wall type" manager/TRNBuild, the U-value does not chage.Does anyone happen to have experience how to simulate the impact of thermal insulation on both sides of the wall?Thanks in advance
best regards,Ismail--
Ismail OUHALLOU
Green buildings & Sustainability concultant
TRUSTED ENERGY S.a.r.lMoroccoFax: +212 522 326 440Mob: +212 620 548 116
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-- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley@tess-inc.com http://www.tess-inc.com http://www.trnsys.com
Ismail OUHALLOU
Green buildings & Sustainability concultant
TRUSTED ENERGY S.a.r.l
Morocco
Fax: +212 522 326 440
Mob: +212 620 548 116