针对非屏蔽门闭式地铁站台,来自区间隧道的活塞风将影响站台空调送风射流,从而影响站台冷量的分布。在此两股气流相互的耦合基础上,提出了站台空调冷量有效利用率的概念。采用计算流体力学(CFD)方法,建立闭式地铁站台三维几何模型,模拟得到了列车在区间匀速运行、减速进站、停站和加速离站4个阶段的地铁站台1.5 m高度水平面的速度场和温度场,并以此计算分析了相应车况下,站台空调冷量有效利用率。由变因素分析,得到冷量利用率受空调送风温度和送风口数量影响最显著。 For the unshielded and closed subway stations, the piston wind from the tunnel will affect the platform air-conditioning air jets and affect the site cooling distribution. Based on the mutual coupling of the two airflows, the concept of effective utilization of cooling capacity of the platform air conditioner is proposed. The CFD method is used to establish the 3D geometric model of a closed subway station. The simulation results show that the speed field of a subway station at a height of 1.5 m at four stages of uniform speed, deceleration, stop and acceleration And temperature field. Based on this, the effective utilization of cooling capacity of platform air-conditioners is calculated and analyzed under the corresponding conditions. By variable factor analysis, it is found that the cold utilization rate is affected most by the air-conditioning air supply temperature and the number of air outlets.