Dissertation > Excellent graduate degree dissertation topics show

Study on the Dispersion Disciplinarian and Decontamination of Automobile Exhaust NO2 in Street

Author: ChenMeng
Tutor: HanXiangChun;YouTieXue
School: Northeast Forestry University
Course: Vehicle Operation Engineering
Keywords: Automobile exhaust Dispersion rule Nano- TiO2 NO2
CLC: X131.1
Type: Master's thesis
Year: 2007
Downloads: 107
Quote: 1
Read: Download Dissertation


With the development of our country’s urbanization and industrialization, air pollution problem in the city has attracted more and more in many research areas. At present, the NO2 exhausted by vehicle is considered the main source of the city air photochemical smog. Among multitudinous measures on curing and degenerating automobile exhaust, many experts and the scholars took the photochemical catalysis material as a new measure to degenerate automobile exhaust in atmosphere. This paper took the NO2 exhausted by vehicle as the main research object, based on turbulent flow numerical simulation elementary theory, selected FLUENT software to simulation a series of natural environment that influenced the diffusion of the NO2 exhausted by vehicle in city street. Through outdoor monitors, applying many kinds of mathematic measures, such as the theory of probability and statistics, fuzzy set, fuzzy clustering and principal component factor selection, researched the sampling time and spot. On the basis of the outside sampling, using indoor experiment to simulate the natural state of the air in the city street, researched the effect of photochemical catalysis material purifying the NO2 exhausted by vehicle in the city street, researched the influence of all kinds of factors.At last, got following conclusions:(1) Meteorology and geographic factors, such as the wind speeds, wind direction, temperature, building highly and the distance of pollution source, obviously influenced the diffusion of the pollutant exhaust by vehicle. (2) Through the monitor of Hexing road of Haerbin, on the basis of applying the theory of probability and statistics, fuzzy set, fuzzy clustering and principal component factor selected, established a set of models on urban road pollutant sampling time and the sampling points, and got satisfied results through proved by instance. (3) On the basis of sampling, using the indoor experiment to simulates the air environment of the city street, researched the effect of photochemical catalysis material purifies the NO2 exhausted by vehicle in the city street. The experiment proved that many factors, such as the light intensity, temperature and humidity had tremendous influence function on photochemical catalysis material purifies the NO2 exhausted by vehicle.

Related Dissertations

  1. Study on the Characteristic of High Selective Purify Nitrogen Dioxide in Medical Nitric Oxide by Activated Carbon,TQ126.24
  2. Study on the Strcture and the Properties of Polystyrene/TiO2 Nanocomposite,TB383.1
  3. Study on Properties of PC/PS Composites Modified by Nano-TiO2/SiO2 Particles,TB383.1
  4. The OTFT devices and Gas Sensing Properties,TN321.5
  5. The Study of NO Low-temperature Catalytic Oxidation Over MnFeO_x Catalyst,X701
  6. Nanocomposite TiO_2/ZnO Preparation and Photocatalytic Properties,TB383.1
  7. Degradation of MTBE in water nano- TiO_2 Factors Influencing,X52
  8. Design and Realization of Vehicle Exhaust Inspection Workflow Control System,TP29-AC
  9. TiO_2 solar water splitting catalyst preparation and characterization,O643.36
  10. Modification of Nano- TiO_2 and gas sensitivity study,O614.411
  11. Ni- nano- TiO_2 Composite Coatings Preparation and Properties,TG174.44
  12. Colorado spruce planted three groups of resistance,S791.18
  13. Nano- TiO_2 composite photocatalytic oxidation of elemental mercury removal experimental study,X51
  14. Application Research of Potassium Ferrate in Coal Mining Water Treatment,X703.1
  15. Anti- SOX, NOX poisoning Pt_nMo_m DFT Study System,TM911.4
  16. Determination of Platinum, Palladium and Rhodium in Automobile Exhaust Catalysts,TQ426.96
  17. Study on Photocatalytic Material Nanometer TiO2 Prepared by Melt-phase Separation Process,TB383.1
  18. Synthesis and Properties of Modified Nanoparticles/Waterborne Polyurethane Nanocomposites,TB383.1
  19. Study on Effect of Si-Al-coated Nano-TiO2 Film on the Color Stability of Silicone Rubber Prosthesis,TB383.1
  20. New nano- aerosols wet collection device design and performance,TB383.1
  21. Ultrasonic exfoliated graphite prepared under load nano-titanium dioxide and azo dyes in wastewater treatment,X703

CLC: > Environmental science, safety science > The basic theory for the Environment and Science > Environmental Chemistry > Environmental pollution, chemical > Air pollution chemistry
© 2012 www.DissertationTopic.Net  Mobile