Additional Insulation Materials in a Window Frame: Experimental and CFD Analyses

Abstract

During our research, we tested how addition of insulating material inside a PCV window profile affects improvement of its thermal insulation. The tested insulation types were: PIR board, aerogel mat, and 3D printed additional profiles. The analysis of the heat flux passing through the window frame was carried out using the authors’ methodics, based on measurements of the temperature distribution in operating conditions and CDF simulations. The heat flux passing through the profile is calculated numerically, and the results of measurements are used to validate the accuracy of these simulations. For all the tested cases, simulations accurately reproduced the results of measurements. The heat flux drop compared to unmodified profile was about 9.8% for aerogel mat, 6.9% for PIR board, and 4.3% for 3D printed elements.

Engineering Method for Calculating Temperature Deformations of PVC Window Profiles with a Reinforcing Steel Core

“…Therefore, the section of the PVC profile cross section directly adjacent to the steel reinforcing core acquires a constant temperature. This result is similar to those shown in other papers [16][17][18][19][20].…”

“…Therefore, the section of the PVC profile cross section directly adjacent to the steel reinforcing core acquires a constant temperature. This result is similar to those shown in other papers [16][17][18][19][20]. Considering the obtained character of temperature distribution over the cross section of PVC window profile with reinforcing steel core, it can be said that calculation of its temperature pattern can be conducted as for a three-layer enclosing structure.…”