Enhancing the piston effect in underground railway tunnels

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• 作者：Daniel Cross ; ^{dcross1@sheffield.ac.uk} ; Ben Hughes ; Derek Ingham ; Lin Ma
• 关键词：Underground railways ; Ventilation ; Piston effect
• 刊名：Tunnelling and Underground Space Technology
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：61
• 期：Complete
• 页码：71-81
• 全文大小：1641 K
• 卷排序：61

文摘

Investigation of using an aerofoil to increase the piston effect. Air flows can be increased by 3% using an aerofoil at a fixed angle of 10°. Maximum increase of 8% using a sequence of different angles during train motion. Increases in air flow achieved without increasing work done by the train.