外墙、外窗保温性能对室内热舒适性影响的研究

Study on the influence of external wall and window's insulating property to the indoor heat comfortability

通过建立数学模型进行数值模拟计算,对外墙和外窗保温性能与热舒适性之间的变化关系进行了研究。对于所建模型,研究表明:外墙传热系数减小,室内热舒适性提高,但是减小到某一数值后,室内热舒适性变化不再明显,该数值在0.60 W/(m2·k)附近;外窗传热系数减小,室内热舒适性提高。外窗对室内热舒适的影响大于外窗对室内热舒适性的影响。

To study the connection between the insulating property of the external wall or window and the heat comfortability, a mathematical model was builded up and a numerical simulation was conducted on. To this physical model, the analysis shows that： when the heat transfer coefficient of the external wall becomes smaller, the heat comfortability changes better, but when it is smaller than one value,the heat comfortability changes unconspicuous, the value is about 0. 60 W/（ m2. k） ;when the heat transfer coefficient of the external window becomes smaller,the heat comfortability becomes better. The external window＇ s influence on the heat comfortability is more than the external wall＇s.