Numerical simulation method for design of flow field parameters in bipolar plate of proton exchange membrane fuel cell

Abstract

The invention relates to a numerical simulation method for the design of flow field parameters of a proton exchange membrane fuel cell bipolar plate. The method first uses Dynaform to simulate and analyze the stamping formability of the bipolar plate to obtain a suitable stamping range, and then In order to design the flow field of the bipolar plate of the fuel cell, CFD software is used to simulate the output performance of the proton exchange membrane fuel cell, and the flow field size of the bipolar plate with the best performance is obtained. The present invention combines the performance numerical simulation of the proton exchange membrane fuel cell with the stamping and forming simulation of the bipolar plate of the fuel cell, and finally obtains an optimized flow field size of the bipolar plate, so that the fuel cell has better output performance and safety performance. The inventive method greatly reduces the cost of flow field design, simplifies experimental research, saves a lot of time and cost, and improves the practical applicability of numerical simulation.

Description

technical field [0001] The invention relates to proton exchange membrane fuel cell technology, in particular to a numerical simulation method for designing bipolar plate flow field parameters of the proton exchange membrane fuel cell. Background technique [0002] Proton Exchange Membrane Fuel Cell (PEMFC) uses hydrogen as the anode fuel, air or oxygen as the cathode fuel, perfluorosulfonic acid solid polymer as the electrolyte, and acts on pure Pt or Pt / C series catalysts Next, a device that converts the chemical energy stored in the fuel directly into electrical energy through an electrode reaction. Proton exchange membrane fuel cells not only have the advantages of no pollution, high efficiency, and no noise, but also have low operating temperature (generally 60-100°C), high power density (0.6-1.0kW / L) and fast start-up (several seconds) It has broad application prospects and has become one of the research hotspots all over the world. [0003] A proton exchange membrane...

AI Technical Summary

Problems solved by technology

Using traditional experimental methods to design bipolar plate flow fields is very cumbersome, not only time-consuming and laborious, but also difficult to analyze the internal conditions of the flow field, such as material distribution, pressure and temperature distribution, etc.

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