Thermal Bridge Heat Transfer & Vapour Diffusion Simulation Program AnTherm Version 6.115 - 8.133 

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Completing the Model in Three Dimensions

The construction will be built up by copying and editing component layers in succession.

Starting with layer 1, floor/wall section, displayed as illustrated above (use view menu), right-click over the Layer Browser to reveal its context menu and select Duplicate.

The geometric and material data of all the elements in layer 1 is hereby copied into the currently displayed second layer.

Now edit the name and thickness of this layer by moving the cursor to the name field (press TAB):

Layer 2: Floor/stucco     Depth.:1

The section through the stucco (layer 2 of the model) is simpler than the previous one, i.e. composed of fewer material elements. The first stage of editing is to page to those copied elements which are not needed for this section and simply delete them, one by one.

Now display and then delete both "exterior plaster" elements from the elements list within the second layer - these are originally listed in Element Browser at positions 6 and 10.

element #   material
10 ext. plaster
6 ext. plaster 

Select the Element by clicking on it and press Delete command button. Delete only those two elements!

The second stage of component group editing is to make any necessary adjustments in the input values of the remaining elements.

For this layer of the model, only the size of one element needs to be changed. Select element 2 - stucco and by double clicking on it open Element Editor, move the cursor to input of Y_1 (using TAB key), and enter:

X_1:    0 
X_2: 1525 
Y_1:    0 
Y_2: 2200

Press TAB to confirm the change and re-draw the component. It should look like this:

Now the same copy and editing procedure shall be repeated to establish the next layer of the model, component layer 3:

  • Right-click the second layer within the Layer Browser and select Duplicate.
     
  • and provide input:
Layer 3: Exp.strip layer    Depth.:4
  • Within Element Browser form delete following elements:
element #   material
17   concrete topping
16   heat source over concrete topping
15   concrete topping
14    isol. underlayment
10    adhesive mortar
9    insulation
8    reinf. concrete
7    adhesive mortar
6    insulation
  • Edit element 6 (formerly 11) - reinf. concrete
X_1:  125 
X_2: 1525 
Y_1: 1025 
Y_2: 1200

The cross-section for this and several of the following model layers shows the perimeter brick as well as the insulation along the edge of the floor slab. For this part of the construction, two new elements must be inserted into the component group "under" the element of reinforced concrete.

Select "Reinf. concrete" in Element Browser. Right-Click on it and select "Add→Before Selected". Edit the input Data:

X_1: 85 
X_2: 1525 
Y_1: 1025 
Y_2: 1200
Type: Material Box

Double-Click over the Lambda field to reveal the list of Materials. Select insulation and drag it onto Element Editor - drop it there assigning properties of insulation to the newly create element.

Material Name: insulation
Lambda: 0.041

The new element 6 - insulation - is generated upon confirmation (TAB), and the reinforced concrete element is now number 7.

The perimeter brick element shall be inserted "under" the insulation. Select "insulation" in Element Browser. Right-Click on it and select "Add→Before Selected". Edit the input Data:

X_1:   25 
X_2: 1525 
Y_1: 1025 
Y_2: 1200 
Type: Material Box
Material Name: Perimeter brick
Lambda: 0.5

Make sure, that the sequence of elements corresponds to the following (starting from element 5 down here):    ??????????????????

element #   material
5 (space) int. transfer coeff
6   perimeter brick
7   insulation
8  reinf. concrete

Layer 3 is now complete. Duplicate that last layer to the fourth now.

The rest of the layers of the demonstration object require editing of copied groups only with respect to name and thickness, followed by a successive deletion of elements:

Layer 4: Int.plaster     Depth.:20

Delete following elements:

element #   material
10 expansion strip
9 sand cushion 
5 (space)   int. transfer coeff

Duplicate the last layer to the fifth now.

Layer 5: Masonry layer     Thick.:200

Delete:

element #   material
4 interior plaster 
  • Edit element 3 - Masonry wall
X_1:   25 
X_2: 1525 
Y_1:    0 
Y_2: 2200

Layer 6 (via Duplicate of layer 5):

Layer 6: Slab perim.insul.    Thick.:40

Delete:

element #   material
6 reinf. concrete  

Layer 7 (via Duplicate of layer 6):

Layer 7: Perimeter brick     Thick.:60

Delete:

element #   material
5 insulation  

Layer 8:

Layer 8: Stucco layer     Thick.:25

Delete:

element #   material
4 perimeter brick
3 masonry

Layer 9:

Layer 9: Ext.space     Thick.:100

Delete:

element #   material
2 stucco

The construction is now complete; the eight component layers can be paged through using the Layer Browser. Save the model data as a construction file in the usual manner:

File→Save

For model documentation, use the options from View→Evaluation&Reports→Data Entry Report.

> Continue reading with "Evaluation and Output"...


 Model, Calculate, Simulate and Analyse Thermal Heat Bridges in 2D and 3D with AnTherm®  

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 Copyright © Kornicki Dienstleistungen in EDV & IT

2014-03-04 10:19 +0100