Thermal performance optimization of phase-change energy storage walls in hot summer and cold winter regions
相变储能墙体在夏热冬冷地区的热工性能优化

摘要

相变储能墙体在建筑节能领域具有重要应用潜力，尤其在夏热冬冷地区，其独特的热工性能可有效改善室内热环境、降低建筑能耗。本研究聚焦于夏热冬冷地区相变储能墙体的热工性能优化，深入分析相变材料特性对墙体热性能的影响，通过构建精确的传热模型模拟不同工况下墙体的热传递过程，探索相变材料种类、相变温度、墙体结构形式等因素与热工性能的关联。结果表明，合理选择相变材料及优化墙体结构，能显著提升墙体的蓄热、隔热能力，有效平抑室内温度波动，降低空调与供暖系统运行时长及能耗。本研究为夏热冬冷地区建筑节能设计中相变储能墙体的高效应用提供了理论依据与实践指导。

Abstract

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.