Evaluating the impact of remodeling and purpose change on the performance and energy efficiency of modern educational facilities

This study aimed to preserve and efficiently utilize modern educational facilities through retrofit in accordance with the National Cultural Heritage Protection Act. The study involved building performance diagnostics and energy consumption assessments. Energy consumption of the building was evaluated before and after the retrofit, as well as after a change in purpose, using the DesignBuilder energy simulation program.

The analysis included not only energy consumption but also performance improvements and changes in thermal comfort resulting from the change in purpose. The diagnostic results indicated that the building’s performance improved compared to before the retrofit; however, there were still areas requiring further enhancement. The retrofit also resulted in a 14.4% reduction in energy consumption. Nevertheless, thermal comfort analysis revealed significant discomfort in continuing to use the building.

After the change in purpose, both energy consumption and thermal comfort showed better results compared to before the retrofit and purpose change. Moreover, aligning performance improvements with domestic standards yielded a 20.7% improvement in outcomes. This suggests the necessity for Korea to improve the Cultural Heritage Protection Act to enable more efficient use of modern architectural heritage.