Research on Summer Thermal Environment and Comfort in Elevated Subway Stations in Wuhan
This study investigated the thermal environment and comfort in elevated subway stations in Wuhan,determined passenger thermal comfort ranges,and examined the impact of station architectural forms on passenger comfort during typical summer days at five representative stations.The research combined instrumental measurements with subjective surveys.Linear fits were applied to the standard effective temperature(SET*)and mean thermal sensation vote(MTS)at two stations,and these were compared with the predicted thermal sensation(PTS)to determine passengers'thermal sensation ranges.The results indicated that the stations tended to fail to meet the requirements of the"Code for design code(GB 50157-2013)".Additionally,indoor air temperatures were frequently too high,relative humidity largely met the standard,and air velocities in most stations were low.Survey data suggest that station design significantly affects passenger thermal comfort,revealing a preference for open platforms during summer.Moreover,the PTS curve remained consistently higher than the SET*-MTS curve,indicating that passengers'summer thermal adaptations exceeded expectations.Finally,common shading,ventilation,and thermal environment improvement measures for regions with hot summers and cold winters were proposed alongside theoretical insights for enhancing thermal comfort and supporting green transitions in elevated subway stations in Wuhan.
elevated subway stationhot summer and cold winter zonethermal environmentthermal comfort
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