Measurements of the heat loss through an insulated roof
Measurements of the heat loss through an insulated roof
复制标题
通过隔热屋顶测量热损失
DOI：
--
复制
发表时间：
1981
期刊：
影响因子：
--
通讯作者：
T. Ward
中科院分区：
文献类型：
--
作者：
B. R. Anderson;T. Ward
现场测量了天花板水平的玻璃纤维被隔热屋面的热损失。计算结果与标准U值计算得到的预测值进行了比较，结果令人满意。外露上表面风速与隔热层热阻关系的研究表明，在0~0.1m/S风速范围内，隔热层性能不受风速影响，阁楼内风速与外风风速相关性较弱，当外风风速达10m/S时，绝热层内风速大多在0~0.1m/S范围内。
In situ measurements have been made of the heat loss through a roof insulated at ceiling level with glass fibre quilt. The results compare favourably with predicted values obtained from standard U-value calculations. An investigation of the dependence of the thermal resistance of the insulation on the air speed at its exposed upper surface showed that the performance of the insulation was not affected by air speed within the range 0 to 0.1 m/s. The air speeds within the loft space were only weakly correlated with external wind speed, and were mostly within the range 0 to 0.1 m/s, for external wind speeds up to 10 m/s.