Research on ventilation modes in underground stations of rail transit in transition seasons

Qian Cheng

2021.08.19

In rail transit underground stations, different underground railway operating companies adopt different ventilation modes in the transition season, resulting in large differences in fan energy consumption. Taking an underground station in Shanghai as an example, by testing the outdoor air volume and CO2 concentration in the station from the pedestrian passage in the transition season, understands the outdoor air volume and CO2 concentration change law in the station under different fan opening modes, compares it with the real-time demand for outdoor air volume in the station, and proposes the suggestions for energy saving operation of fans in underground stations in the transition season.