隧道内路面坡度和车速对车辆烟雾排放量影响的研究

Effects of Road Gradient and Vehicle Speed on Smoke Emission in Highway Tunnel

通过发动机台架和柴油车道路排放测试,研究公路隧道内路面坡度和车速对车辆烟雾排放的影响。结果表明,随着隧道内路面坡度的升高,车辆烟雾排放量增加;坡度每升高1度,烟雾排放量增加40%～125%;3%的路面坡度导致烟雾排放急剧上升225%～650%。在隧道内行车速度越高,烟雾排放量越大;车速提高10km/h烟雾排放量增加20%～25%;超过70km/h的车速将导致烟雾排放量的急剧升高。研究结果为公路隧道设计和隧道内行车速度调控提供重要的基础数据。

The smoke emission of diesel vehicle was measured on engine test bench and on?road operationThe effects of road gradient and vehicle speed on the smoke emission were studiedThe results show that the smoke increases with the increase in road gradient and vehicle speedThe smoke increases by 40% to 125% per degree increase of gradient3% road gradient remarkably may increase the smoke by 225% to 650%Higher speed may result in larger amount of smoke emission The smoke may be increased by 20% to 25% for a speed increase of 10km/hThe smoke will be greatly heavier for vehicle speed over 70 km/hThe research results provide an important base data for tunnel design and speed control in highway tunnel