地铁列车设备舱通风冷却设备布置优化
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摘要
通过CFD(计算流体动力学)仿真对地铁列车设备舱压力场和温度场进行了计算,得到隧道运行、明线运行、高架运行及停站四种工况下列车设备舱内部空气温度分布和压力分布,为设备舱通风设备的布置与设计提出建议。结果表明,通过在裙板两侧开通风口,加大进入设备舱的冷却风量,将发热量大的设备布置于设备舱的两端,可以有效地提高设备舱散热。
In this paper, the pressure field and temperature field of the metro train equipment cabin are calculated by CFD(computational fluid dynamics) simulation, and the interior air temperature distribution and pressure distribution of the equipment cabin are obtained in four operational conditions: tunnel operation, open line operation, elevated operation and stop, corresponding suggestions for the layout and design of equipment cabin ventilation are put forward. The research shows that the heat dissipation of the equipment compartment can be effectively improved by opening the vents on both sides of the skirt so as to increase the cooling air input, and arranging the equipment with large heat generation at both ends of the equipment cabin.
In this paper, the pressure field and temperature field of the metro train equipment cabin are calculated by CFD(computational fluid dynamics) simulation, and the interior air temperature distribution and pressure distribution of the equipment cabin are obtained in four operational conditions: tunnel operation, open line operation, elevated operation and stop, corresponding suggestions for the layout and design of equipment cabin ventilation are put forward. The research shows that the heat dissipation of the equipment compartment can be effectively improved by opening the vents on both sides of the skirt so as to increase the cooling air input, and arranging the equipment with large heat generation at both ends of the equipment cabin.
引文
[1] 关永久. 高速列车在隧道内会车过程的气动特性研究[D]. 成都:西南交通大学, 2010.
[2] TOMOSHIGE H. Method of measuring the aerodynamic drag of trains[J]. Bulletin of JSME, 1965,8(31):390.
[3] TOMOSHIGE H. Aero dynamical problems when train is running into tunnel with large velocity[J]. Railway Techincal Research Report, 1960(153):169471.
[4] 田红旗. 中国列车空气动力学研究进展[J]. 交通运输工程学报, 2006,6(1):1.
[5] 田红旗. 列车交会空气压力波研究及应用[J]. 铁道科学与工程学报, 2004(1):83.
[6] 李志伟, 梁习锋, 周丹. 快速集装箱平车在明线和隧道内会车时的气动性能[J]. 中南大学学报(自然科学版), 2008,39:1029.
[7] 白刚. 高速列车设备舱通风散热影响因素分析[J]. 发电与空调, 2016(4):86.
[8] 胡文锦. 高速列车设备舱通风散热及气动响应研究[D]. 成都:西南交通大学, 2013.
[2] TOMOSHIGE H. Method of measuring the aerodynamic drag of trains[J]. Bulletin of JSME, 1965,8(31):390.
[3] TOMOSHIGE H. Aero dynamical problems when train is running into tunnel with large velocity[J]. Railway Techincal Research Report, 1960(153):169471.
[4] 田红旗. 中国列车空气动力学研究进展[J]. 交通运输工程学报, 2006,6(1):1.
[5] 田红旗. 列车交会空气压力波研究及应用[J]. 铁道科学与工程学报, 2004(1):83.
[6] 李志伟, 梁习锋, 周丹. 快速集装箱平车在明线和隧道内会车时的气动性能[J]. 中南大学学报(自然科学版), 2008,39:1029.
[7] 白刚. 高速列车设备舱通风散热影响因素分析[J]. 发电与空调, 2016(4):86.
[8] 胡文锦. 高速列车设备舱通风散热及气动响应研究[D]. 成都:西南交通大学, 2013.