摘要
在实验室进行了稳态传热条件下热桥表面温度和热流强度的测试实验,将实验结果分别与二维稳态传热模拟软件PTDA的模拟计算结果及我国现行标准中规定的一维简化方法的计算结果进行了对比。结果表明,PTDA的模拟结果较精确,而现行标准中的简化方法的误差较大,应及时修订。
Tests the surface temperature and heat flow rate per unit area of the thermal bridge in steady-state heat transfer condition in a laboratory.Compares the experimental results with those from the simulation using a two-dimensional steady-state heat transfer software—PTDA（planar temperature distribution and analysis） and the calculation by the one-dimensional simplified method defined in the current design codes of China.The result shows that the simulation results by the PTDA software agree well with the experimental results, and that the calculation results by the simplified method are not sufficiently accurate and the current design codes should be revised in time.
出处
《暖通空调》
北大核心
2007年第7期11-14,共4页
Heating Ventilating & Air Conditioning
基金
国家自然科学基金资助项目(编号:50408013)
陕西省教育厅专项科研计划项目(编号:04JK215)
关键词
围护结构
热桥
二维稳态传热
实验
模拟软件
一维简化方法
envelope
thermal bridge
two-dimensional steady-state heat transfer
experiment
simulation software
one-dimensional simplified method
