Optimization measures for underground railway ventilation system in the severe cold Northeast region

Presents the optimization measures for the piston air shaft, distribution of air blower and ventilating shaft and operation model, analyses the energy consumption and construction cost in different seasons and different operation conditions, and carries out computer simulation and validation on the optimization schemes. The result shows that adopting the specific optimization measures can keep the passengers’ comfort when waiting in winter and substantially reduce the initial investment and operation costs.