| Title |
Comparative Analysis of Window Thermal Performance Calculation Method between Window Certification Systems |
| DOI |
http://dx.doi.org/10.5659/JAIK_PD.2015.31.9.119 |
| Keywords |
Window ; Certification ; Thermal performance ; ISO 15099 ; ISO 10077 ; NFRC |
| Abstract |
The purpose of this study was to analyze the differences of window thermal performance calculation method between window certification systems. The U-value and g-value calculation method in ISO 15099 was reviewed and analyzed. The window certification systems in different countries were compared. The results show that there are differences in the standard window size, calculation algorithm, rating indicators, boundary conditions and rating scale. A simulation was performed to evaluate the thermal performance of windows using different calculation methods. |