| 摘要 |
<P>PROBLEM TO BE SOLVED: To simply accurately estimate an in-plane state of a membrane electrode assembly in a fuel cell. <P>SOLUTION: The membrane electrode assembly is virtually divided into a plurality of small regions arranged in a line along the flow of reaction gas. The current density I in each small region (n region) is calculated based on the power generation environment in each region, and the reaction gas consumption and the water generation is calculated based on the current density I. The movement of each gas component from the n region to the downstream n+1 region dn_H2_An, dn_N2_An, dn_H2O_An and the liquid water movement dn_liqH2O_An are also calculated according to each movement characteristic. Power generation environment where the n region is placed is updated based on each gas component movement and liquid water movement from an upstream n-1 region to the n region, each gas component movement and liquid water movement from the n region to a downstream n+1 region, and the reaction gas consumption and water generation in the n region. <P>COPYRIGHT: (C)2009,JPO&INPIT |
