Differences

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--- basics:building_physics_-_basics:thermal_bridges:tbcalculation:ground_contact:procedure [2016/08/16 13:22] – mschueren
+++ basics:building_physics_-_basics:thermal_bridges:tbcalculation:ground_contact:procedure [2019/02/21 10:20] (current) – cblagojevic
@@ Line 5: / Line 5: @@
   * taking into account the ground as a material
-  * partial taking into account of the ground with small layers of earth or with small blocks of earth in the calculation models
+  * partial taking into account the ground with small layers of earth or with small blocks of earth in the calculation models
   * no depiction of the ground, in a similar way to calculations of regular thermal bridges towards the air
   * or the ground is depicted  as an additional boundary condition for the temperature (see DIN 4108 Supplementray Sheet 2)
@@ Line 21: / Line 24: @@
   * The ground must be depicted with the same length for the x and y directions in both calculation models with at least five or six times the floor slab length (see illustration).
   * The external dimensional reference applies for the floor slab length (in contrast to the DIN EN ISO 10211). This is recommended for a length of 4 metres.
   * For calculation of the additional conductances, it is recommended that the components in contact with the ground should be represented with a boundary condition corresponding with their heat transfer resistance R = 1/U, rather than with their build-up.
   * The block of earth must exhibit adiabatic boundary conditions at the interfaces.