Dissertation > Excellent graduate degree dissertation topics show

Study on the Dispersion Model of Vehicle Exhaust Pollutant in Street of Chengdu

Author: GaoYuan
Tutor: MouRuiFang
School: Southwest Jiaotong University
Course: Environmental Engineering
Keywords: vehicle emission CALINE4 model motor vehicle flow model modification
CLC: X511
Type: Master's thesis
Year: 2008
Downloads: 282
Quote: 4
Read: Download Dissertation

Abstract


In recent years, the motor vehicle recoverable amount in Chengdu increases fast continuously. By the end of March this year, the motor vehicle recoverable amount in Chengdu has already been up to 1,830,000, and still increase progressively at the speed of 800 for every day. The quantity of motor vehicle increasing constantly causes the emission of urban motor vehicle pollutant to increase year by year. The tail gas of motor vehicle pollutes the primary pollution source that has already become urban atmosphere.It’s a complicated process for the vehicular exhaust to disperse in street canyon. Many factors may affect this process such as the source intensity, meteorological factors and street geometry and so on. Some typical streets are selected as the objects of the study. Then the characteristics and the current situation of vehicle emission in Chengdu are explored. Emphasis is put on how the meteorological factors and street geometry affect the dispersion process of the vehicular pollutants in streets. CALINE4 is selected to simulate the dispersion process of the vehicular exhausts in the streets according to the characteristics of the meteorological conditions and street geometry in Chengdu city. The author used the model to simulate the motor mobile pollution. The result shows that the CALINE4 model and set up a parameterize plan. The modeled value of the modified CALINE4 and the measured value show good pertinence. The precise rate of the result is been improved.Finally, the author gives some advices to reduce the motor ca pollution. The results of this study have obvious scientific value and practical value to support the decisions of the government with scientific data.

Related Dissertations

  1. Study on Calculation Model of Environment Coat of Road Overloading Transportation,X11
  2. Vibration Characteristic Analysis and Modification Research of Cupped Gyroscope Resonator,TP212
  3. Study on Emission Factors of NOx and CO from Vehicles by Using the Inverse Model Method,X734.2
  4. Study on Vehicle Emission Pollution and Control Strategies in Xi’an,U491.9
  5. Research on Modal Parameters Identification and Application of Bridge Structure,U446
  6. Emission Factor Model Database of Light-duty Vehicles,TP311.13
  7. Numerical Simulation and Experimental Study of Structural Finite Element Model Updating for Long-Span Cable-Stayed Bridge,U448.37
  8. The Current Status, Forecast and Control Contermeasures of Motor Vehicle Emission in Xi’an,X51
  9. Analysis of Vehicle Emission to Air Quality in Chengdu Urban Area,X511
  10. Research of the Test for Complete-vehicle Emission and Fuel Consumption of the Bus by Chassis-dynamometer,U467.4
  11. Feasibility Discussion on Motor Vehicle Emission Tax,F812.42
  12. Research on the Impact of One-way Roadway Transformation on the Urban Road Traffic Emissions,U491.92
  13. Decision Support System of Motor Vehicle Emissions Management for Wu Han,U491.92
  14. Study on Vehicle Emission Pollution and Pollution Control Countermeasures in Xi’an,X734.2
  15. Study on Characterization and Emission Factors of NanoParticles from Vehicles,U467.48
  16. Research on the Control Technique of Vehicl Emissions,U491.92
  17. Study on Database of Vehicle Driving Cycles and Emission Rate Relation,U467.48
  18. Study on Light-duty Vehicle Microcosmic Emission Model on Urban Highway,U491.9
  19. The Study of Pollution State of Vehicle and Partake Rate of Changchun,U491.9
  20. The Use of CALINE4 Model to Simulate the Motor Mobile CO Diffuse Pollution of the Main Road in Xi’an City,X734.2
  21. Research on Vehicle Emission Inspection Management System Based on Distributed Multi-tier Architecture,U491.92

CLC: > Environmental science, safety science > Environmental pollution and its prevention > Atmospheric pollution and its control > Gas pollutants
© 2012 www.DissertationTopic.Net  Mobile