热激活蓄能复合墙体定向注热优化与性能分析

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中图分类号：TU86 文献标志码：A 文章编号：1000-582X（2026）04-001-13

doi：10.11835/j.issn.1000-582X.2026.04.001

Optimization and performance analysis of directional heat injection in thermally activated energy-storage composite walls

YANG Yang'，GE Yue'，CHEN Sarula，XIAO Xiuyi，CHEN Kunyu，CHEN Tianhang （1.College ofArchitecture and Art，Hefei Universityof Technology，Hefei 230061，P.R.China;2.Schoolof Architecture and Urban Planning，Anhui Jianzhu University，Hefei 23o6O1，P.R.China）

Abstract：Toaddress thecapacitymismatch between heat injectionand thermaldiffusion in thermallyactivated walls，this study proposes anenhanced thermally activatedwall（ETAW）design to improve energy-storage eficiency andenergy-savingpotential.A dynamic heat transfer modelisdeveloped tocompare the thermal performance of ETAW with that of conventional thermally activated walls （CTAW） and conventional energysaving wals （CW）.Local sensitivity analysis is conducted to investigate the economic impacts offin parameters， climateconditions，and insulation thickness.Results demonstrate that ETAW exhibits significantly superior dynamic thermal performance relative to CTAW and CW，although the degree of improvement depends on the heat injection mode.Increases in trunk fin size and branch fin size both efectively reduce total operating energy consumption and costs，with the branch fin size exhibiting a more pronounced influence.Adoptinga smaller branch-fin inclination angle （e.g. 60∘ ）and a left-oriented installation can reduce operating costs and energy consumption by approximately 10.9% and 10.7% respectively.Insulation thickness shows strong correlations with energy efficiency and economic performance; recommended reduction rates should not exceed 40% in severe cold zones and may be extended to up to 60% in hot-summer zones.

Keywords： thermo-activated building system; composite wal; energy efficiency; directional heat injection; energyeconomic optimization; thermal diffusivity

在“双碳”目标引领下，建筑围护结构热负荷调控技术正持续向低碳方向发展。（剩余16164字）