双机重联内燃机车通过隧道的热力学最低速度

The Minimum Thermodynamic Speed of Double-connection Diesel Locomotive Running through Tunnels

为确定双机重联内燃机车通过隧道的热力学最低速度,选择分析具有典型特征的库尔勒—鱼儿沟段的路线,从热力学角度对双机重联内燃机车通过隧道时的最低速度进行了分析.结果表明,在保证进柴油机空气污染度不大于10%,及隧道最高温度不超过50℃的前提下,双机重联内燃机车通过隧道时的最低速度为6m/s.

To determine the thermodynamic minimum speed of double-connection diesel locomotive through the tunnels,the line from Ku-Er-Le to Yu-Er-Gou is chosen and studied due to its typical characteristics.Based on the experimental results of the thermodynamic parameters on this line,the minimum speed of the locomotive through tunnels was investigated from the point of thermodynamics.The results show that when the pollution ratio of air in the diesel engine is less than 10% and the maximum temperature of the tunnel is lower than 50 ℃,the minimum speed of double-connection diesel locomotive through the tunnel can be as low as 6 m/s.