Research On Energy Saving And Emission Reduction Technology Of Mountainous City Tunnel

Due to tunnel is half closed sexual space, tunnel within vehicle emissions ofpollutants serious effect with tunnel within traffic security and Division takepersonnel of health, by tunnel of ventilation lighting can reduced pollutantsconcentration and reduced on Division take personnel of health threat, and tunneloperations process in the of ventilation and lighting produced huge energyconsumption, to balance tunnel within security and energy of relationship, promotingtunnel of energy saving emissions for city tunnel operations management has activesignificance.First on the vehicle speed within the tunnel in Chongqing City, traffic volume,traffic composition, CO concentration distribution and wind speeds in tunnels andother data for field research, analysis of control characteristics of traffic using thetunnel and tunnel mountain city CO concentration distribution characteristics andusing principal component analysis of main factors affecting the determination oftunnel of energy saving and emission reduction. Through the analysis of vehicleexhaust emissions and harm to human health, has identified carbon monoxide aspollutants concentration control objects within the tunnel, using Coburn-Forster-Kaneequation, COHb levels of hemoglobin in human blood2%CO within the establishedlimit values of concentration control model. From the start Of mass of pollutants inthe tunnel, establishment of partial differential equation of CO concentration,discussed the stability condition of the equations, model sensitivity analysis. Andthrough engineering examples of application testing CO-source emission anddiffusion model of the FTCS scheme application feasibility of urban tunnel in themountains.By analyzing the relationship between speed and emission factors, establishingdifferent ratios of vehicles in tunnels under the conditions recommended speed limitcontrol standards, and speed control strategy study of urban tunnel. To ergonomicaspects, based on the theory of cognitive theories, such as traffic engineering, detaileddiscussion of tunnel settings for speed limit signs, speed limit established for urbantunnel control set.For urban traffic in the tunnel characteristics, to improve the general traffic flowcalculation model, an amendment to the value of its parameter, tunneling traffic capacity calculation model, and combined motor vehicle CO-source emissions modeland diffusion model, recommended formation of urban tunnel traffic volume controlstandards. And study the city tunnel traffic control traffic management schemes; lastcapacity through the tunnel and mixed vehicle tunnel traffic control limits forcomparative analysis of standards, formed the city pedestrian passageway tunneldesign technology.