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Cumulative results of corner calculations
| Thermal resistance of insulation R [(m2·K)/W] | Thermal coupling coefficient Le2D [W/(m2·K)] | Linear thermal transmittance coefficient ψe[W/(m·K)] | ||
|---|---|---|---|---|
| Insulated corner | Partially insulated corner | Insulated corner | Partially insulated corner | |
| 0 | 2.952 | 2.952 | -0.578 | -0.578 |
| 0.5 | 1.672 | 2.230 | -0.460 | -0.634 |
| 1.0 | 1.201 | 2.015 | -0.385 | -0.599 |
| 1.5 | 0.932 | 1.882 | -0.330 | -0.471 |
| 2.0 | 0.758 | 1.787 | -0.290 | -0.459 |
| 2.5 | 0.626 | 1.707 | -0.270 | -0.464 |
| 3.0 | 0.552 | 1.655 | -0.230 | -0.458 |
Summary of surface temperature values and fRsi factor at places T1D/T2D/T3D for variants of the W1÷W5 system
| Temperature [°C] | Factor fRsi [–] | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| W1 | W2 | W3 | W4 | W5 | W1 | W2 | W3 | W4 | W5 | |
| T1_g | 8.49 | 8.41 | 16.90 | 17.02 | 16.98 | 0.712 | 0.710 | 0.923 | 0.925 | 0.925 |
| T2_g | 2.13 | 9.90 | 14.10 | 14.32 | 13.48 | 0.553 | 0.748 | 0.853 | 0.858 | 0.837 |
| T3_g | 1.14 | 8.47 | 11.20 | 11.27 | 13.23 | 0.529 | 0.648 | 0.780 | 0.782 | 0.831 |
| T3_d | –4.21 | –4.19 | 0.00 | –5.14 | 11.69 | 0.395 | 0.442 | 0.475 | 0.372 | 0.792 |
Differences in surface temperature values of the tested corner systems
| Surface temperature difference ΔT[°C] | |||
|---|---|---|---|
| Sp3–Sp1 | Sp3–Sp2 | Sp2–Sp1 | |
| Historic building | 4.3 | 3.4 | 0.9 |
| Historic building with thermal insulation of the envelopes | 4.7 | 3.1 | 1.6 |
List of thermal and moisture parameters for the wall S1
| No. | Layer | Thickness d[m] | Density [kg/m3] | Thermal conductivity index λ [W/(m·K)] | Diffusion resistance factor μ [–] |
|---|---|---|---|---|---|
| 1. | Solid brick on cement-lime mortar | 0.38 | 1800 | 0.60 | 15.0 |
| 2. | Leveling layer of cement-lime plaster | 0.015 | 1900 | 0.80 | 19.0 |
| 3. | System adhesive mortar | 0.01 | 833 | 0.015 | 15.1 |
| 4. | Lightweight cellular concrete slabs | 0.10 | 115 | 0.04 | 4.1 |
| 5. | System finishing layer | 0.01 | 833 | 0.015 | 15.1 |
Thermal conductivity of the materials used to build the model
| Brick wall | Plaster | Thermal insulation | Wooden beam | Plaster boardd | OSB plate | |
|---|---|---|---|---|---|---|
| λ | 0.77 | 1.00 | 0.04 | 0.16/0.13 | 0.32 | 0.13 |
| d [m] | 0.38/0.25 | 0.15 | 0.10 | 0.14×0.20 | 0.0125 | 0.02 |
Temperature values at the points W4 and W4_1 indicated on the details
| Location | Temperature at point [°C] | ||
|---|---|---|---|
| Variant W4_1 | Variant W4 | ||
| Beam support | T1 | –13.42 | –2.26 |
| T2 | –14.6 | –6.67 | |
| T3 | –8.52 | –6.47 | |
| T4 | 9.23 | 10.52 | |
| T5 | 15.53 | – | |
| T6 | 14.45 | 14.88 | |
| Node 3D_ (bottom) | T1 | 16.80 | 4.06 |
| T2 | 13.72 | –1.93 | |
| T3 | 5.92 | –5.14 | |
| Node 3D_ (top) | T1 | 16.99 | 17.02 |
| T2 | 14.38 | 14.32 | |
| T3 | 10.71 | 11.27 | |