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本文结合广州地区的某高架地铁车站模型,分析自然通风状况下地铁站台的热环境以及围护结构的结露风险,结果表明:内表面温度与附近空气露点温度差异大于2℃,不存在结露风险;随室外温度升高,自然通风站台的热舒适性改善,室内平均温度更接近最佳舒适温度;自然通风所带来的通风量可以满足相关规范的要求。
Based on the model of an elevated metro station in Guangzhou, this paper analyzes the thermal environment and the risk of dew formation of the subway station under the conditions of natural ventilation. The results show that the difference between the inner surface temperature and the dew point of nearby air is more than 2 ℃, With the increase of outdoor temperature, the thermal comfort of the natural ventilation platform is improved and the indoor average temperature is closer to the optimum comfort temperature. The ventilation rate brought by natural ventilation can meet the requirements of the relevant specifications.