Dissertation > Excellent graduate degree dissertation topics show

The Equipment Development and Key Technologies Investigation for the Membrane Electrode Assembly Coating

Author: NieZuo
Tutor: YangYiYong
School: Chinese Geology University (Beijing)
Course: Mechanical Manufacturing and Automation
Keywords: Air - assisted atomization Spray system Numerical Simulation Velocity field Membrane electrode
CLC: TM911.4
Type: Master's thesis
Year: 2009
Downloads: 15
Quote: 0
Read: Download Dissertation


The film electrode is a core member of a fuel cell , its performance plays a key role in the performance of the fuel cell , a spraying method is one of the important methods of preparation of the membrane electrode , but also can be used for the preparation of a high precision coating , its performance on the the quality of the coating , the degree of uniformity of the coating has an important influence . Spray - way choice spraying effect , is the most important prerequisite to avoid waste and get better quality coating contrast by spraying , and the results of the comprehensive test , the final selection of air assisted atomizing spray as the spraying manner . Spray systems equipment design, including double- coordinates of the mobile platform design, and the stirring device design , nozzle component design , and so on , some parts of which the Security Checking . And through a combination of methods and testing , improvement and innovation is one of the important parts . This article uses the computational fluid dynamics software FLUENT nozzle modeling and numerical simulation . Pressure field and velocity field inside the nozzle , the nozzle external velocity and the phase distribution , and the simulation results and experimental results were compared to verify the credibility of the simulation results . Simulation of the flow field inside the nozzle , including internal liquid and gas flow field simulation . Calculated using a multiphase flow model , the nozzle internal liquid and gas velocity field and the pressure field contours and curves through simulation , and the simulation results are analyzed . Basis outside the nozzle , liquid and gas interaction outside the nozzle flow field simulation . Using a multiphase flow model has been calculated, the external velocity and phase distribution . Last through the test , the result of adding auxiliary atomizing air before and after contrast , comprehensive simulation results , assisted atomization air atomizing effect can be seen to verify the feasibility of the calculation of the simulation results also verified on the results obtained by the spray system design and improvement .

Related Dissertations

  1. The Setting Bases of Working Pressure in LNG Systems and Orthogonal Experiment Design of Heat Exchangers,TQ051.5
  2. Study on Springback of High-Strength Steel Stamping,TG386
  3. Numerical Simulation and Experiment on Hydroforming of Cups with Controllable Radial Pressure,TG386
  4. Research on Technology and Mechanism of Joining Cemented Carbide to Carbon Steel,TG454
  5. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  6. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  7. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  8. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  9. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  10. Numerical Simulation of Biomass Direct Reburning,TK16
  11. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  12. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11
  13. Study on Gas-Solid Two-Phase Flow in Spouted Beds,TK173
  14. Experimental Study and Numerical Simulation on Aerodynamic Field of Tangential Bias Swirl Burner,TK223.23
  15. Characteristic Study of Combustion in Central Reverse Flame Chamber,TK223.21
  16. Numerical Simulation and Contrastive Analysis of Labyrinth Seals and Leaf Seals,TK263.2
  17. Fabrication of Membrane Electrode Assembly for PEMFC,TM911.4
  18. Numerical Study on Phosphorus Distribution in Water Environment of the Three Gorges Reservoir,X832
  19. The Design and Performance Simulation of External Valve Small Displacement Pump,TE933.3
  20. Analysis of the Impact of Tailings Dam Stability under Seepage Role,TV649
  21. Study on Hydraulic Fracturing of Low Permeability Reservoir,P618.13

CLC: > Industrial Technology > Electrotechnical > Independent power supply technology (direct power) > Chemical power sources,batteries, fuel cells > Fuel cell
© 2012 www.DissertationTopic.Net  Mobile