中文摘要：

为降低地铁环控系统能耗，根据目前传统屏蔽门系统和安全门系统的优劣性，提出了可控风口的新环控系统．以某新建地铁为例对新系统的舒适性、通风及节能效果进行了分析论证．利用计算流体力学方法对列车进站和出站过程进行了非稳态模拟，分析了列车进站、出站过程产生的活塞风对站台站厅舒适性、通风效果的影响，并根据系统负荷及运行条件进行了节能效果分析．结果表明，新环控系统可兼顾屏蔽门和安全门系统的优点，当按照优化后的开口和控制方案运行地铁新环控系统时，站台内乘客活动区域气流速度小于5m／s，满足舒适性要求，同时可在屏蔽门系统的基础上降低能耗17．3％，节能效果显著．

英文摘要：

In order to reduce the energy consumption of the environmental control system of subway station, a new environmental control system with controllable slit was proposed according to the advantages and disadvantages exist- ing in the traditional platform screen door （PSD） and safety door systems. A newly-built subway station was intro- duced to analyze and demonstrate the comfort, ventilation and energy-saving effect of the new system. Transient simu- lation on the process of trains pulling in and out of a station was carried out by using computational fluid dynamics （CFD） method to analyze the comfort and ventilation in the station influenced by piston wind. Moreover, energy- saving effect was analyzed according to the load of the system and operating conditions. The result shows that the new environmental control system contains the advantages of both PSD and safety door systems, the air velocity of the passenger activity areas in the platform is less than 5 m/s using the optimized opening and operating programs, meet- ing the comfort requirement, and the energy consumption can be reduced by 17.3% compared with PSD systems.