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暖通空调杂志社>期刊目次>2018年>第9期

建筑围护结构蓄热性能参数体系的对比研究

Comparative study on parameter systems of building envelope thermal storage performance

赵金玲 党伟康
大连理工大学

摘要:

针对建筑围护结构蓄热设计及性能分析与评价所面临的选择何种蓄热性能参数体系问题,对基于非稳态传热的谐波分析法和传递函数法2种蓄热参数体系进行了对比分析,对材料蓄热系数与热渗透系数、热惰性指标与热厚比、剧烈波动层厚度与周期热渗透深度、表面吸热系数与热导纳等参数之间的异同进行了深入探讨。分别针对室外和室内热源周期性热作用,确定了蓄热性能关键表征参数。以某一复合保温墙体为例,分别对基于谐波分析法和传递函数法的蓄热性能参数进行了计算。

关键词:建筑围护结构,蓄热,性能参数,谐波分析法,传递函数法

Abstract:

Aiming at the problem of thermal storage performance parameter system selection for the design and performance evaluation of building envelope thermal storage, compares two thermal storage parameter systems of harmonic analysis method and conduction transfer function method based on unsteady heat transfer. Deeply discusses the similarities and differences of physical meanings and calculation methods between coefficient of heat accumulation and thermal permeability, thermal inertia index and ratio of thickness to penetration depth, violent fluctuating layer thickness and periodic penetration depth, heat absorption coefficient and thermal admittance. Presents the key parameters of thermal storage performance for outdoor and indoor heat source periodic thermal effects, respectively. Taking a composite insulation wall as an example, calculates the thermal storage performance parameters based on harmonic analysis method and conduction transfer function method respectively.

Keywords:buildingenvelope,thermalstorage,performanceparameter,harmonicanalysismethod,conductiontransferfunctionmethod

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