风口侧上置置换通风的热舒适性实验研究

Experimental Study on Thermal Comfort of the Displacement Ventilation with High Sidewall Outlet

以小型办公室为实验模型,采用了5组对比工况进行了实验,并将实验值与模拟值进行了比较,结果二者吻合较好。分析了侧墙上置风口置换通风的热舒适性。结果表明风口侧上置置换通风在各设计工况下,其负荷承担能力要大于传统置换通风,并且不论是吹风感、吹风温度还是室内头脚垂直温差都满足人体热舒适。这也证实风口上置置换通风与传统置换通风一样,可以在室内形成良好的热力分层现象,并且其能很好地满足人体的热舒适性需求,具有置换通风系统的特性。

A small office is set as the experimental model. Five contrasted working conditions are used for the experiment, the comparison between numerical and experimental results shows good agreement. The thermal comfort of displacement ventilation with high sidewall outlet is analyzed. Results shows that the displacement ventilation with sidewall outlet has a greater load affordability under the design conditions. And both the sense of blowing, blowing temperature and indoor head vertical temperature difference are to satisfy the human body thermal comfort. Displacement ventilation with high sidewall outlet can also formed the same good thermal stratification as traditional displacement ventilation. And it can satisfy the thermal comfort of human body very well, and has the characteristics of the displacement ventilation sys-tem.