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Title page for etd-0829117-121756


URN etd-0829117-121756 Statistics This thesis had been viewed 235 times. Download 0 times.
Author Chien-wei Chen
Author's Email Address No Public.
Department Mechanical Engineering
Year 2016 Semester 2
Degree Master Type of Document Master's Thesis
Language zh-TW.Big5 Chinese Page Count 65
Title Simulation for the effects of compound flow channel design on the performance of a high temperature PEMFC
Keyword
  • High temperature PEM fuel cell
  • Numerical analysis
  • Compound flow channel design
  • Compound flow channel design
  • Numerical analysis
  • High temperature PEM fuel cell
  • Abstract In this study, three-dimensional model of high temperature proton exchange membrane fuel cells compound flow channel design by using COMSOL Multiphysics, which has cathode half-cell included flow channel, gas diffusion layers, and catalyst layers. This study applies the continuity equation, momentum equation and gas diffusion equation to describe the reactant gas and production flow, the pressure distribution in the gas diffusion layers, and catalyst layers. The main research objective is to investigate the effect of compound flow channel design on the performance of the typical serpentine and parallel channel design, the serpentine runner and parallel flow channel all of which are arranged in combination to design 16 different-flow-channel geometries The flow curves, the velocity field, the current density distribution, the oxygen concentration fraction, the pressure distribution and the characteristics of the flow paths are discussed by numerical simulation of different flow channel designs. According to the research, the results show that the compound design performs as well as the serpentine design. Compound design is combination of serpentine and parallel, which could improve parallel channel no uniform reactant flow distribution and serpentine channel pressure drop decrease. Compound design can perform better than the typical serpentine and parallel design.
    Advisor Committee
  • Min-Hsing Chang - advisor
  • Yung-Yu Chen - advisor
  • Files indicate in-campus access only
    Date of Defense 2017-07-25 Date of Submission 2017-08-29


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