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用数值模拟方法,对北京某城市商业综合体内部公共空间空调工况热环境进行了研究,分析了各层不同送风比例下,综合体内部公共空间纵截面温度分布情况和人员活动区域内的温度分布情况。通过比较,确定了满足综合体内部公共空间各层热舒适要求的空调送风方案。数值模拟结果表明,对于城市商业综合体内部公共空间采用各层均匀送风,顶层与公共空间相连的走廊区域温度在夏季不能满足热舒适要求,适当减少内部公共空间下层的送回风量,增加至顶层,在冬夏工况下均可有效改善内部公共空间热环境,增加舒适度,有效解决顶层走廊温度偏高及温度不均等问题。
The numerical simulation method was used to study the thermal environment of air conditioning condition in the public space of a commercial complex in Beijing. The distribution of vertical section temperature in public space and the area of personnel activity under different air distribution ratios were analyzed. Temperature distribution. By comparison, the air-conditioning air supply scheme to meet the thermal comfort requirements of all floors in the public space is determined. The numerical simulation results show that for the public space in the urban commercial complex, uniform air supply is adopted in all public spaces, and the temperature of the corridor connecting the top floor and the public space can not meet the thermal comfort requirements in summer, and the return air volume in the lower floor of internal public space is appropriately reduced to The top layer can effectively improve the internal public space thermal environment and increase comfort during winter and summer conditions and effectively solve the problems of high temperature and uneven temperature in the top floor corridor.