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SELECTED PROBLEMS INVOLVING THE PRESERVATION OF HISTORICAL FRAME BUILDINGS IN SILESIA IN THE CONTEXT OF THEIR FUTURE THERMO-RENEWAL

Agnieszka SZYMANOWSKA-GWIŻDŻ
Agnieszka SZYMANOWSKA-GWIŻDŻ
, 
Bożena ORLIK-KOŻDOŃ
Bożena ORLIK-KOŻDOŃ
 e 
Tomasz STEIDL
Tomasz STEIDL
   | 07 gen 2020
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Article Category: research-article
Pubblicato online: 07 gen 2020
Pagine: 73 - 85
Ricevuto: 06 giu 2019
Accettato: 06 nov 2019
DOI: https://doi.org/10.21307/acee-2019-053
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© 2019 Agnieszka SZYMANOWSKA-GWIŻDŻ et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1–2.

Buildings in the housing estates Zandka in Zabrze, Wolności Street and Dębieńsko at Czerwionka-Leszczyny, Słowackiego Steet
Buildings in the housing estates Zandka in Zabrze, Wolności Street and Dębieńsko at Czerwionka-Leszczyny, Słowackiego Steet

Figure 3–5.

Wooden details in the apartment buildings of the housing estate Zandka in Zabrze, Wolności Street
Wooden details in the apartment buildings of the housing estate Zandka in Zabrze, Wolności Street

Figure 6.

Details of modification of buildings subject to analysis – Variant I (crosssection)
Details of modification of buildings subject to analysis – Variant I (crosssection)

Figure 7.

Details of modification of buildings subject to analysis – Variant II (cross-section)
Details of modification of buildings subject to analysis – Variant II (cross-section)

Figure 8.

Places of temperature measurement, for the existing state
Places of temperature measurement, for the existing state

Figure 9.

Places of temperature measurement, for the state after modifications
Places of temperature measurement, for the state after modifications

Table 6.

Analysis results in Therm – Distribution of isotherms for particular models, temperature values in selected places
Analysis results in Therm – Distribution of isotherms for particular models, temperature values in selected places

Figure 10.

Changes in water content in the internal plaster over 3 years
Changes in water content in the internal plaster over 3 years

Figure 11.

Changes in water content in ceramic brick – the layer from the room side
Changes in water content in ceramic brick – the layer from the room side

Figure 12.

Changes in water content under the ceramic tile
Changes in water content under the ceramic tile

Figure 13.

Changes in water content in the timber stud
Changes in water content in the timber stud

Figure 14.

Measurement results: blue line – heat flux, red line – temperature (in the room, yellow line – outside air temperature, green line – U)
Measurement results: blue line – heat flux, red line – temperature (in the room, yellow line – outside air temperature, green line – U)

Figure 15.

Thermal insulation of insulation baffles from the inside
Thermal insulation of insulation baffles from the inside

Analysis results in Therm – Distribution of isotherms for particular models, temperature values in selected places for building 3: Mickiewicza 8 (example of calculations for a variant no 1)

Variant no I: Mineral panels based on light cellular concrete gr. 5 cm

Physical parameters of the analyzed partition in the existing state

No Material d [m] λ[W/mK] Emissivity ε
1 White glazed ceramic tile 0.01 0.68 0.90
2 Lime morta 0.01 0.7 0.91
3 Old brickwork wall 1810 kg/m3 0.12 0.705 0.88
4 Pine wood, 550 kg/m3 0.12 0.16 0.86
5 Cement-lime internal plaste 0.02 0.88 0.91

Temperature and values of the temperature factor fRsi in selected points of the partition for state after modifications from the inside – cross section

Results for variants after insulating from the inside
Variant No 1 Variant No 2 Variant No 3
Building M1
t1 10.9°C 11.7°C 13.1°C
Temperature factor fRsi 0.59 0.63 0.69
t2 - - -
t3 4.7°C 6.5°C 4.7°C
Temperature factor fRsi 0.32 0.40 0.32
Building M2
t1 9.4°C 10.4°C 14.5°C
Temperature factor fRsi 0.53 0.57 0.75
t2 3.4°C 4.3°C 3.4°C
Temperature factor fRsi 0.26 0.30 0.26
t3 6.2°C 7.4°C 6.2°C
Temperature factor fRsi 0.38 0.44 0.38
Building M3
t1 13.0°C 14.1°C 16.8°C
Temperature factor fRsi 0.69 0.74 0.86
t2 4.3°C 6.0°C 5.9°C
Temperature factor fRsi 0.30 0.38 0.37
t3 6.7°C 9.1°C 8.6°C
Temperature factor fRsi 0.41 0.51 0.49

Material data for variant I, II, III

No Material d [m] λ[W/mK] Emissivity ε
1 Light concrete 0.005 0.2 0.91
2 Mineral plates 0.05 0.042 0.90
3 Larch boards 400 kg/m3 0.07 0.128 0.86
4 Larch logs 400 kg/m3 0.14 0.128 0.86

Choice of thickness of insulation material for variant No. I, II and III

Selection of insulation materials thicknesses
Lp. Material d [m] λ [W/mK] VARIANT R [m2K/W] U [W/(m2K)]
VARIANT II
1 Larch boards 0.07 0.128 0.547 1.83
VARIANT III
1 Larch logs 0.14 0.128 1.094 0.91
VARIANT I
1 Light concrete 0.05 0.042 1.16 0.86

Climatic data and parameters related to heat transfer

No Climatic data
1 The outside temperature t e -2.4°C
2 The internal temperature t i 20.0°C
3 Relative humidity φ 50%
Heat transfer
4 Coefficients of heat transfer h e 25 W/(m2K)
5 Coefficients of heat transfer h i 7.69 W/(m2K)
6 Coefficients of heat transfer (condensation of water vapour) 4.0 W/(m2K)

Thermal insulation of bulkheads in existing state

Building 1 1 Mickiewicza Street Building 2 34 Wolności Street Building 3 8 Mickiewicza Street
U = 2.3278 W/m2K U = 1.5961 W/m2K U =1.5603 W/m2K

Structural details (models) – location on the facade, diagrams of cross-sections accepted for theoretical analyses carried out in the Therm program

The building is located among the buildings of the Patronacki Housing Estate in Czerwionka-Leszczyny, at. Mickiewicza Street no 1.
The building is located among the buildings of the Patronacki Housing Estate in Czerwionka-Leszczyny, at. Wolności Street No 34.
The building is located among the buildings of the Patronacki Housing Estate in Czerwionka-Leszczyny, at. Mickiewicza Street No 8.

Temperature at selected points – existing condition

Temperature results for the state of existing objects
Building 1 1 Mickiewicza Street Building 2 34 Wolności Street Building 3 8 Mickiewicza Street
Cross-sections
t1 13.2°C 12.4°C 15.5°C
t2 No data 7.6°C 10.9°C
t4 14.5 14.1 16.8
Longitudinal section
t1 16.5°C 15.8°C 15.9°C
t2 No data 10.7°C 10.4°C
t3 12.4°C 15.1°C 15.2°C
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