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--- basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples:unheatedb [2025/01/23 11:40] – [Determining the conductance] mpatyna
+++ basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples:unheatedb [2025/01/24 13:55] (current) – old revision restored (2025/01/23 11:52) mpatyna
@@ Line 103: / Line 103: @@
 ==== Determining the conductance ====
-An alternative procedure is given in the Protocol Volume No. 27 of the Research Group for Cost-effective Passive Houses and is demonstrated below. Only the conductances $L_{ie}$ and $L_{iu}$ are required for this method. These can be determined through two calculations.
+An alternative procedure is given in the Protocol Volume No. 27 of the Research Group for Cost-effective Passive Houses and is demonstrated below. Only the conductances $L_{ie}$ and $L_{iu}$  are required for this method. These can be determined through two calculations.
-<WRAP centeralign> **Determining the conductance** $ \Large{L_{2d}} $ </WRAP>
+<WRAP centeralign>
+**Determining the conductance**
+$
+\Large{L_{2d}}
+$
+</WRAP>
-{{  :picopen:unbeheizter_keller_abb_5a.1.png?700x615  }}{{  :picopen:unbeheizter_keller_abb_6b.png?600  }}
-<WRAP centeralign> * For a temperature difference of 1 K the conductance has the same numerical value as the sum of the heat flows across __all__ interior surfaces of the interior space. </WRAP>
+{{ :picopen:unbeheizter_keller_abb_6a.png?600 |}}
+{{ :picopen:unbeheizter_keller_abb_6b.png?600 |}}
-**Note!** In comparison to the previous variant, $L_{ie}$ and $L_{iu}$ were calculated with only 2 simulations here. In this case the desired heat flows must be determined as part of the overall heat flux in the model, which is relatively confusing or even impossible depending on the software used. Alternatively, the conductances can be ascertained as in the previous variant, but again with the aid of three simulations.
+<WRAP centeralign>
+* For a temperature difference of 1 K the conductance has the same numerical value as the sum of the heat flows across __all__ interior surfaces of the interior space.
+</WRAP>
+**Note!** In comparison to the previous variant, $L_{ie}$ and $L_{iu}$ were calculated with only 2 simulations here. In this case the desired heat flows must be determined as part of the overall heat flux in the model, which is relatively confusing or even impossible depending on the software used. Alternatively, the conductances can be ascertained as in the previous variant, but again with the aid of three simulations.
 ==== Calculating the Ψ-value ====