Dissertation > Excellent graduate degree dissertation topics show

Studies on Flow Field Plate of PEM Fuel Cells and Its Molding Techniques

Author: LiMaoChun
Tutor: ZhangLianHong
School: Tianjin University
Course: Mechanical Manufacturing and Automation
Keywords: Fuel cell PEMFC Flow field plate Flow field grooves CFD Stamping Finite Element
CLC: TM911.4
Type: Master's thesis
Year: 2004
Downloads: 169
Quote: 5
Read: Download Dissertation

Abstract


The proton exchange membrane fuel cell (Proton exchange membrane fuel cell, PEMFC) to its high energy conversion efficiency , low-emission , energy and power density is considered to adapt to future energy and environmental requirements of the ideal power source for one . The flow field plate is an important part of the proton exchange membrane fuel cell , which is adjacent to the for battery distribution of fuel and oxidant and concatenate battery . The flow field plate costs account for about 40% of the proton exchange membrane fuel cell cost , caused by the high cost of proton exchange membrane fuel cell , and become a major obstacle to practical proton exchange membrane fuel cell . In addition , the performance of proton exchange membrane fuel cell not only depends on the material and technological level of the battery is also heavily influenced by the impact of the fuel and oxidizer fluid distribution uniformity , homogeneous fluid distribution help to improve the performance of proton exchange membrane fuel cell . In this paper, in order to improve the uniformity and utilization of the fuel fluid distribution target proton exchange membrane fuel cell flow field plate structure optimization of channel dimensions and efficient, low - cost flow field plates manufacturing issues . 1 using the method of proton exchange membrane fuel cell anode fuel gas (H2) flow field numerical simulation , computational fluid dynamics (Computational fluid dynamics, CFD) flow field plate to the utilization of the the largest fuel gas (H2) target optimization of channel dimensions . The results show that when the groove width of 1.5mm, the width of the ridge portion of 0.5mm and a groove depth is 1.5mm, the utilization of the fuel gas (H2) reaches a maximum 84.8% . Further, in the case of the same opening ratio interdigitated flow field plate of the fuel gas (H2) in the utilization ratio of utilization of the fuel gas (H2) of the single - channel serpentine flow field plates and parallel grooves flow field plate to be high. Proposed flow field plate of efficient , low-cost stamping process . Elastic-plastic deformation finite element method for convection field plate stamping numerical simulation , and analysis of the deformation process , strain and thickness distribution , in theory, to verify the feasibility of applications in the processing of the metal flow field plates of sheet metal stamping . On this basis , the flow field plate of the structural design of the sheet metal .

Related Dissertations

  1. Research on the Mainframe System of Powder Mixed EDM and the Craft Experiment,TG661
  2. Study on Springback of High-Strength Steel Stamping,TG386
  3. Finite Element Analysis and Structure Optimal Design for Combined Seal at Normal Temperature and Low Temperature,TH136
  4. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  5. Physically Based Real-Time Fluid Simulation Technique,TP391.41
  6. Design of Testing Equipment for Electronic Products,TN06
  7. S-lay Installation Analysis for Deepwater Pipeline,TE973
  8. Sham hose drum drive means and hydraulic system of the structure,TE973
  9. The magnetorheological damper mechanical properties and Gun Recoil,TB535.1
  10. Based on Pro/E Reconstruct Sprinkler Structure and Investigations on Internal Flow Characteristic of the Sprinkler by Numerical Simulation and Experiment Methods,TP391.72
  11. Nonlinear Structural Dynamics Analysis and Optimization Design on Naval Gun Driver,TJ391
  12. Analysis of Shovel Welding Residual Stress Based on Finite Element Method,TG404
  13. Analysis on Static-dynamic and Fatigue Characteristics of Metallurgical Overhead Traveling Crane,TH215
  14. Research of Deep Excavation Construction Process for Nearby Subway Section Action,TU753
  15. Decision Design and Research on Moving-iron Linear Oscillatory Motor with Two Separated Stators,TM359.4
  16. Research and Application of Caprolactam-containing Wastewater Recovery with Centrifugal Extraction Technology,X78
  17. Theoretical Study and Simulation of Hydrocyclone Separator,TH237.5
  18. The Design of Telescopic Asphalt Spraying System,U415.524
  19. Numerical and Experimental Studies for Multi-Cracks of Asphalt Pavement with Semi-Rigid Basement Asphalt,U416.217
  20. Analysis of Rotor Temperature Field of Hydro Generator on Asymmetric Operation Condition,TM312
  21. Finite Element Analysis of Magnetic Levitation Planar Motor,TM359.9

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