Journal of Engineering Research

Phase-change energy storage walls demonstrate significant potential for building energy conservation, particularly in regions with extreme thermal variations. Their unique thermal performance effectively improves indoor thermal comfort and reduces energy consumption. This study focuses on optimizing the thermal performance of phase-change energy storage walls in hot summer and cold winter regions. By analyzing how phase-change material properties influence wall thermal performance, we developed precise heat transfer models to simulate thermal conduction processes under various operating conditions. The research explores correlations between material types, phase transition temperatures, wall configurations, and thermal performance. Results indicate that strategic selection of phase-change materials combined with optimized wall structures can significantly enhance thermal storage and insulation capabilities. These improvements effectively stabilize indoor temperature fluctuations while reducing the operational duration and energy consumption of HVAC systems. This study provides theoretical foundations and practical guidance for efficient application of phase-change energy storage walls in building energy conservation design for hot summer and cold winter regions.

Hot summer and cold winter regions; Phase-change energy storage walls; Thermal performance; Phase-change materials; Building energy conservation