An Energy Evaluation of Multi-residential Buildings in South Korea Using Gas Utilities

Abstract

The purpose of this study was to evaluate energy performance of existing multi-residential buildings and classify them according to their energy efficiencies. 200 households from four different aging multi-residential buildings were selected and analyzed. By applying monthly gas consumption of a whole year to Inverse Model Toolkit, the heating slope and change-point temperature coefficients were calculated and used for energy performance evaluation. As a result, the older buildings were classified to the category of the poor energy performer that needs to be remodeled for improving their energy efficiency.