| Title |
Analysis of Insulation and Condensation Performance of Thermal Bridge Insulation Structures for External Insulation Parapet |
| Authors |
박두용(Park, Doo-Yong) ; 한승현(Han, Seung-Hyeon) ; 안상희(Ahn, Sang-Hee) ; 최윤철(Choi, Yun-Chul) |
| DOI |
https://doi.org/10.5659/JAIK.2024.40.11.211 |
| Keywords |
Parapet; Thermal bridge breaker; Insulation Performance; Heat Flow; Linear Thermal Transmittance; Effective Thermal Transmittance; Condensation Performance; Temperature Difference Ratio |
| Abstract |
In this study, the insulation performance and condensation performance according to the application of thermal bridge insulation structures
were quantitatively evaluated for a reinforced concrete structure with external insulation and anti-condensation materials using a 3D
steady-state simulation program. As a result of analyzing the heat loss through the structure, Case 1 was the highest at 59.035W, followed
by Case 2 at 42.056W and Case 3 at 34.891, indicating that the insulation performance of the structure applying Evaluation Target 3 was
relatively excellent. As a result of analyzing the linear thermal transmittance, Case 1 was 0.826W/K, Case 2 at 0.402W/K, and Case 3 at
0.223W/K, indicating that the amount of heat lost through the thermal bridge had a maximum deviation of 73%. The indoor surface
temperature of the wall joint was highest in Case 3 at 20.46℃, followed by Case 1 at 17.02℃, showing a minimum of 4.2% and a
maximum of 16.8% deviation by evaluation subject. As a result of calculating the TDR using the indoor surface temperature, the TDR of the
evaluation subject was 0.11 to 0.19, which was analyzed to be suitable for all of the criteria for the area II standard for the condensation
prevention performance evaluation of apartment complexes (0.23 or less). The results of this study confirmed that the thermal bridge
phenomenon can be minimized by applying a thermal bridge insulation structure when the insulation is continuously broken at the roof slab
and parapet joint. |