Energy-Saving Optimization Analysis of the Perimeter Structure of a Lakefront Residence in Soochow, China

The text explores the possibility of reducing energy consumption and improving the indoor thermal environment of old residential buildings through different renovation schemes for the perimeter structure, using Building C6 in the Taihu Tianque community as an example in Suzhou. The study determines the optimal renovation sequence and solution based on energy-saving efficiency and cost-effectiveness, and verifies the indoor thermal environment and building load after renovation. The research shows that the cumulative annual cooling load of the renovated residence is reduced by 4.66 W h per square meter compared to before the renovation, and the average indoor temperature in summer is 3.5 ℃ lower than before the renovation. The maximum cooling load throughout the year is less than 4 KW. This research provides an effective solution for energy-saving renovations of similar residences.