权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Theoretical elucidation of optimal structure for PEMFC catalyst layer based on non-equilibrium thermodynamics

基于非平衡热力学的质子交换膜燃料电池催化剂层优化结构的理论阐释

基本信息

批准号：
22KJ2198
负责人：
Alizadehkolagar Seyedmehrzad
金额：
$ 1.6万
依托单位：
Osaka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for JSPS Fellows
财政年份：
2023
资助国家：
日本
起止时间：
2023-03-08 至 2025-03-31
项目状态：
未结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22KJ2198/
关键词：
燃料電池数理最適化不可逆損失非平衡熱力学

项目摘要

本研究は，燃料電池や二次電池などの電気化学デバイスの電極における「不可逆損失の最小化」のための理論の確立を目指す．そのため，「エントロピー生成最小化」に着目し，数値解析に基づき局所エントロピー生成率の空間分布を考察する．今年度は，化学多孔質反応器と電気化学多孔質反応器の2つのシステムにおいて，材料分布の最適化を行った．その目的は，システムの性能を高めることであった．どちらのシステムも，複数の速度・輸送過程を伴い，最適化されたレイアウトを得るため，トポロジー最適化法が使用された．トポロジー最適化は，アドジョイント変数法に基づいており，性能向上は，速度現象と輸送現象の間の妥協点を得ることで達成される．さらに，非平衡熱力学の概念に基づいてエントロピー生成モデルを導出し，エントロピー生成のローカル・グローバルレートを解析した．様々な不可逆性の原因を特定し，個別に定量化する．エントロピー生成の観点から2つの異なる最適化アプローチを比較し，物理化学的な差異を明らかにした．実際の実用例として，固体高分子形燃料電池（PEFC）の非等温二相流モデルを開発した．PEFC電極の構造を最適化し，セル全体の性能を向上させることを目的としている．研究成果は，ジャーナル論文や複数の国内外の会議で発表した．

In this study, the secondary fuel cell, the secondary battery, the chemical engineering, the electrical engineering, the electrical engineering, the "irreversible failure minimization", the theory of "irreversible failure minimization", the theory of "irreversible failure minimization", the theory of "irreversible failure minimization", the theory of "irreversible failure minimization", the theory of "irreversible failure minimization", the theory of "irreversible failure minimization", the theory of "irreversible failure minimization", the theory of "irreversible failure minimization", the theory of "irreversible failure minimization", the theory of "irreversible failure minimization", the theory of "irreversible failure minimization", the theory of "irreversible failure minimization", "irreversible failure minimization", the objective of this study is to analyze the spatial distribution of the generation rate of Chemical porous filter, chemical porous filter, chemical porous In this paper, the optimization method is used, the performance is improved, and the performance is improved. The performance is improved, and the performance is improved. The performance is improved, and the performance is improved. In addition, the concept of non-equilibrium mechanics is based on the concept of unbalanced mechanics. The reason for the irreversibility is specific. The reason for the irreversibility is specific. For example, the reason for the irreversibility is specific. For example, the reason for the irreversibility is specific. For example, the reason for the irreversibility is quantificational. The error in physics and chemistry is different from that in the world. The solid polymer fuel cell (PEFC) is operated on for non-isothermal two-phase flow. PEFC is used to optimize the performance of the cell, and the overall performance of the cell is highly effective. The results of the study, the results of the research, the complexity of the literatures and the tables of the domestic and foreign conferences are reviewed.