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北京地铁列车活塞风的实则与分析
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【化工类毕业论文】Field test and analysis of piston action ventilationin Beijing underground railway system
提要 为了研究列车活塞风对地铁热环境的影响，达到有效地利用和控制活塞风，改善地铁热环境状况的目的，对北京地铁列车从起动、加速、等速、减速到停止等各种运行情况进行了实则，总结出地铁隧道内列车活塞风和车站行人出入口处风速的变化规律。
关键词 地铁/风速自记仪/红外时间自记仪/列车活塞风
Abstract In order to learn through study the influence of piston-action-induced ventilation on the underground thermal environment so as to control it and improve the environmental quality, a field test in Beijing underground railway system is conducted when a train start, accelerate, move in constant speed, decelerate and halt. Summarizes the regularity of variations of piston-action-induced ventilation in the tunnel and variations of velocity in station corridors.
Keywords underground railway, recording anemometer, infrared timer, piston-action-induced ventilation
1 引言
北京地铁客流量增加较快，列车密度也随之加大。列车活塞作用造成的活塞风对地铁热环境的
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