高大空间座椅送风案例分析

Case Analysis of Tall Space Seat Air Supply

为探究基于座椅送风的空调形式在高大空间的应用前景和效果,以南沙青少年宫项目为依托,针对青少年宫中剧场的环境特点和空调需求,剧场观众席采用座椅下送侧回的气流组织形式,剧场舞台采用顶送中下回的气流组织形式,应用Airpak软件对其进行气流组织模拟。研究结果表明:垂直高度上温度呈现一定的梯度分布,上高下低,热量聚集在顶部,大空间纵向温度场在9 m高度以下温度较均匀,未出现严重的温度分层现象。舞台2.1 m高度处平均温度约为24.1℃,观众席后面区域温度相对于前三排偏高1.2℃左右,整体温度大致为25.2℃,平均风速为0.2 m/s,室内工作区域的温度和风速均满足热舒适性的要求。

To explore ventilation application prospects and effects of air conditioning in large spaces, we did a simulation in which the air distribution is simulated by Airpak software and it’s based on the Project of Nansha Youth Palace. According to its demand of environmental characteristics and air-conditioning, theatre audience are sent in side return airflow organization form under the seat, equipped with top theater stage in the next time the airflow organization form. The results show that the temperature at the vertical height presents a certain gradient distribution, with the heat concentrated at the top. The temperature of the longitudinal temperature field in large space is relatively uniform below the height of 9 m, and there is no serious temperature stratification. The average temperature at the height of 2.1 m of the stage is about 24.1 ℃, and the temperature in the area behind the auditorium is about 1.2 ℃ higher than that in the first three rows. The overall temperature is about 25.2 ℃, and the average wind speed is 0.2 m/s. Both the temperature and wind speed in the indoor working area meet the requirements of thermal comfort.