User Tools

Site Tools

You are here: Cloud Plugin » Basics » Building physics - basics » Thermal Bridges » Thermal bridge calculation » Examples of thermal bridge calculations » Exterior wall on floor slab
basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples:ewfs

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples:ewfs [2020/05/26 12:37] – alangbasics:building_physics_-_basics:thermal_bridges:tbcalculation:examples:ewfs [2022/08/08 12:14] (current) – yaling.hsiao@passiv.de
Line 24: Line 24:
 <WRAP centeralign> <WRAP centeralign>
 **Calculating the conductance**  **Calculating the conductance** 
-<latex> 
 L2d  L2d 
-</latex> 
 </WRAP> </WRAP>
  
-{{ :picopen:aussenwand_auf_bodenplatte_abb_8a.png?600 |}}+ 
 +{{ :picopen:01_updated_-_aussenwand_auf_bodenplatte_abb_8a.png?600 |}}
  
 {{ :picopen:aussenwand_auf_bodenplatte_abb_8b.png?600 |}} {{ :picopen:aussenwand_auf_bodenplatte_abb_8b.png?600 |}}
 +
  
 <WRAP centeralign>  <WRAP centeralign> 
-<latex> +$$ 
-$$\.q = 19{,}488 \, \frac{\text{W}}{\text{m}}$$ \\ +\dot{q} = 19{,}488 \, \frac{\text{W}}{\text{m}} 
-$$L_{2d} = \frac{\.q}{T_i-T_e} = \frac{19{,}488}{30} = 0{,}6496 \, \frac{\text{W}}{\text{m} \cdot \text{K}}}$$  +$$ 
-</latex>+</WRAP> 
 + 
 +<WRAP centeralign>  
 +$$ 
 +\large{L_{2d} = \frac{\dot{q}}{T_i-T_e} = \frac{19{,}488}{30} = 0{,}6496 \, \frac{\text{W}}{\text{m} \cdot \text{K}}} 
 +$$
 </WRAP> </WRAP>
  
Line 44: Line 49:
 <WRAP centeralign> <WRAP centeralign>
 **Conductance of the floor slab**  **Conductance of the floor slab** 
-<latex> 
 LBP  LBP 
-</latex> 
 </WRAP> </WRAP>
  
-{{ :picopen:aussenwand_auf_bodenplatte_abb_9a.png?600 |}}+{{ :picopen:02_updated_-_aussenwand_auf_bodenplatte_abb_9a.png?600 |}}
 {{ :picopen:aussenwand_auf_bodenplatte_abb_9b.png?600 |}} {{ :picopen:aussenwand_auf_bodenplatte_abb_9b.png?600 |}}
  
  
 <WRAP centeralign>  <WRAP centeralign> 
-<latex> +$$ 
-$$\.q = 14{,}023 \, \frac{\text{W}}{\text{m}}$$ \\ +\dot{q} = 14{,}023 \, \frac{\text{W}}{\text{m}} 
-$$L_{BP} = \frac{\.q}{T_i-T_e} = \frac{14{,}023}{30} = 0{,}4674 \, \frac{\text{W}}{\text{m} \cdot \text{K}}}$$  +$$ 
-</latex>+</WRAP> 
 + 
 +<WRAP centeralign>  
 +$$ 
 +\large{L_{BP} = \frac{\dot{q}}{T_i-T_e} = \frac{14{,}023}{30} = 0{,}4674 \, \frac{\text{W}}{\text{m} \cdot \text{K}}}  
 +$$
 </WRAP> </WRAP>
  
Line 65: Line 73:
 <WRAP centeralign> <WRAP centeralign>
 **Conductance of the exterior wall**  **Conductance of the exterior wall** 
-<latex> 
 LAW  LAW 
-</latex> 
 </WRAP> </WRAP>
  
 <WRAP centeralign>  <WRAP centeralign> 
-<latex> +$$ 
-UAW=0,1205Wm2⋅K  +U_{AW} = 0{,}1205 \, \frac{\text{W}}{\text{m}^2 \cdot \text{K}}  
-L_{AW} = l_{AW} \cdot U_{AW} = 2{,}03 \cdot 0{,}1205 = 0{,}2446 \, \frac{\text{W}}{\text{m} \cdot \text{K}}}  +$$ 
-</latex>+</WRAP> 
 + 
 +<WRAP centeralign>  
 +$$ 
 +\large{L_{AW} = l_{AW} \cdot U_{AW} = 2{,}03 \cdot 0{,}1205 = 0{,}2446 \, \frac{\text{W}}{\text{m} \cdot \text{K}}}  
 +$$
 </WRAP> </WRAP>
  
Line 83: Line 94:
  
 <WRAP centeralign>  <WRAP centeralign> 
-<latex> +$$ 
-\Psi = L_{2d}-L_{AW}-L_{BP}=0{,}6496-0{,}2446-0{,}4674=-0{,}062 \, \frac{\text{W}}{\text{m} \cdot \text{K}}}  +\large{\Psi = L_{2d}-L_{AW}-L_{BP}=0{,}6496-0{,}2446-0{,}4674=-0{,}062 \, \frac{\text{W}}{\text{m} \cdot \text{K}}}  
-</latex>+$$
 </WRAP> </WRAP>
  
Line 103: Line 114:
 <WRAP centeralign> <WRAP centeralign>
 ** Determining the minimum surface temperature and**  ** Determining the minimum surface temperature and** 
-<latex> 
 fRsi  fRsi 
-</latex> 
 </WRAP> </WRAP>
  
  
-{{ :picopen:aussenwand_auf_bodenplatte_abb_10a.png?600 |}}+{{ :picopen:updated_03-_aussenwand_auf_bodenplatte_abb_10a.png?600 |}}
 {{ :picopen:aussenwand_auf_bodenplatte_abb_10b.png?600 |}} {{ :picopen:aussenwand_auf_bodenplatte_abb_10b.png?600 |}}
  
 <WRAP centeralign>  <WRAP centeralign> 
-<latex> +$$ 
-fRsi=0,25=17,4−(−10)20−(−10)=0,91  +f_{Rsi \, = \, 0{,}25} = \frac{17{,}4-(-10)}{20-(-10)} = 0{,}91  
-</latex>+$$
 </WRAP> </WRAP>
  
basics/building_physics_-_basics/thermal_bridges/tbcalculation/examples/ewfs.1590489420.txt.gz · Last modified: 2020/05/26 12:37 by alang