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对地铁车站公共区的夏季冷负荷进行了分析计算,进而确定地铁车站公共区逐时通风量。结合天津市地铁1号线环控系统初步设计方案,提出变风量环控系统的控制方案。应用计算流体力学(CFD)模拟的方法,借助于Airpak软件,模拟车站公共区的温度场和速度场,得出改变风量后通风系统的效果以达到设计要求。
The summer cooling load in the public area of the subway station is analyzed and calculated, and then the hourly ventilation rate in the public area of the subway station is determined. Combined with the preliminary design of loop control system of Tianjin Metro Line 1, the control scheme of VAV loop control system is proposed. Applying computational fluid dynamics (CFD) simulations, Airpak software was used to simulate the temperature and velocity fields in the public area of the station, and the effect of the ventilation system after the air volume was changed was achieved to meet the design requirements.