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

Abstract

The invention relates to a numerical simulation method for designing bipolar plate flow field parameters of a proton exchange membrane fuel cell. The method comprises the following steps: performing simulation analysis on punch forming property of a bipolar plate by using Dynaform so as to obtain a proper punch forming range; performing flow field design of the bipolar plate of the fuel cell by taking the proper punch forming range as basis; and finally, simulating output performance of the proton exchange membrane fuel cell by using CFD (Computational Fluid Dynamics) software, thereby obtaining the flow field size of the bipolar plate with the most excellent performance. According to the method disclosed by the invention, numerical simulation of the performance of the proton exchange membrane fuel cell is combined with punch forming simulation of the bipolar plate of the fuel cell, and finally the optimized flow field size of the bipolar plate is obtained, so that the fuel cell has excellent output performance and safety performance. According to the method disclosed by the invention, the flow field design cost is greatly reduced, the experimental study is simplified, lots of time and cost can be saved, and the actual applicability of the numerical simulation is improved.

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.

Images