摘要
提出了一种计算通过建筑多层墙体的瞬时热负荷的新模型. 在一定的频率范围内计算出墙体传热的理论频率响应,从理论频率响应得到墙体横向传热及内表面吸热的多项式s传递函数. 并由拉氏逆变换和离散得到简单的递推公式. 比较与验证的结果表明这种模型计算速度快、精度高、灵活性好、数值稳定.
A novel model is developed for calculating transient thermal load through a building multilayer construction. The theoretical frequency responses of cross and internal heat conduction are calculated within the frequency range concerned. Two polynomial s-transfer functions are then estimated from the frequency responses. Finally, some simple recursive formulae are obtained simply by inverse Laplace transform and discretizing. The validations and comparisons show that this model provides fast computation speed, high accuracy, good flexibility to variable time steps and has no numerical unstability.
出处
《上海理工大学学报》
CAS
北大核心
2001年第3期225-228,共4页
Journal of University of Shanghai For Science and Technology
基金
国家自然科学基金资助项目(59578004)
香港理工大学资助项目(GS869)
关键词
仿真模型
热负荷
建筑
空调系统
多层墙体
simulation model
thermal load
building
air-conditioning system
