铁路旅客站房高大空间冬季热环境测试与分析

Test and Analysis of the Thermal Environment in the Large Space of Railway Passenger Station Room in Winter

针对夏热冬冷地区铁路旅客站房冬季室内的热环境问题,以武汉某铁路站房为调研对象,进行候车区高大空间开口尺寸、渗透风量和温度分布进行实地调研。结果表明,调研时段站房总渗透风量达到61.2万m^3/h,折合换气次数为2.1次/h,其中高架候车室渗透风量为54.7万m^3/h,折合换气次数为2.0次/h,整个站房单位空调面积渗透风热负荷为68.5W/m^2,高大空间下部候车区温度为15.0℃,顶部温度为20.0℃,上下温差为5℃,调研结果为站房运行节能提供了技术参考。

For the indoor thermal environment of railway passenger station in hot summer and cold winter area,taking a railway station in Wuhan as study object,conducts field investigation on the opening size,infiltration air volume and temperature distribution of the large space in the waiting room.The results show that the total infiltration air volume of the station during the investigation period reached 612,000m^3/h,and the air change rate was 2.1 times/h.The infiltration air volume of the elevated waiting room is 547,000m^3/h,and the air change rate was 2.0 times/h.The infiltration wind heat load per unit air conditioning area of this station was 68.5 W/m^2,the temperature in the waiting room where lower zone of the high space was 15.0℃,the temperature of the top zone was 20.0℃,so the upper and lower temperature difference was 5℃.The investigation results provide technical reference for the energy saving of the station room.