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Titlebook: Water Content Estimation and Control of PEM Fuel Cell Stack and the Individual Cell in Vehicle; Po Hong Book 2022 Tsinghua University Pres

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發(fā)表于 2025-3-21 19:37:04 | 只看該作者 |倒序瀏覽 |閱讀模式
書目名稱Water Content Estimation and Control of PEM Fuel Cell Stack and the Individual Cell in Vehicle
編輯Po Hong
視頻videohttp://file.papertrans.cn/1021/1020931/1020931.mp4
概述Develops a model of water content in MEA to effectively quantify its influence on performance.Establishes the approach to online AC impedance measurement of the individual cell and fuel cell stack.Con
叢書名稱Springer Theses
圖書封面Titlebook: Water Content Estimation and Control of PEM Fuel Cell Stack and the Individual Cell in Vehicle;  Po Hong Book 2022 Tsinghua University Pres
描述.This book focuses on water content estimation and control of the PEM fuel cell stack and the individual cell in vehicle. Firstly, the mathematical connection between polarization curve and equivalent circuit model proves importance of MEA and its feasibility to study water content. Optimizing structure of MEA realizes the internal water content recirculation of a fuel cell and improves its performance under middle or lower current density. The influence of water content on performance of MEA is quantified, and variation of equivalent circuit model is an excellent indicator of water content. Secondly, the comprehensive online AC impedance measurement method is put forward, including current excitation method, weak voltage and current signal processing method, and method for analyzing measurement error, and experiment validates measurement accuracy. The high-frequency impedance and statistical characteristic are proposed as indicator of water content. Finally, the dynamic model of theair supply system of a fuel cell engine is established and the closed-loop control of the air supply system and the water content estimation are decoupled. The experiment on a fuel cell system validates
出版日期Book 2022
關鍵詞PEM fuel cell; Membrane electrode assembly; AC impedance; Water content estimation; Water management str
版次1
doihttps://doi.org/10.1007/978-981-16-8814-0
isbn_softcover978-981-16-8816-4
isbn_ebook978-981-16-8814-0Series ISSN 2190-5053 Series E-ISSN 2190-5061
issn_series 2190-5053
copyrightTsinghua University Press 2022
The information of publication is updating

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沙發(fā)
發(fā)表于 2025-3-21 21:37:40 | 只看該作者
Introduction,rst consumption of nature resources. However, the formation of nonrenewable energy like coal and petroleum needs thousands of years and their available storage is challenged with visible great reduction every year for the last two decades. It is predictable that current available energy would not sa
板凳
發(fā)表于 2025-3-22 00:38:39 | 只看該作者
地板
發(fā)表于 2025-3-22 04:49:07 | 只看該作者
Modeling of Water Content in MEA for the PEM Fuel Cell,L). The electrochemical reaction happens both in the cathode catalyst layer (CCL) formed on one side of the MEA and in the anode catalyst layer (ACL) formed on the other side of the MEA. The water content in the MEA dominates the conductivity of the proton, particularly in the polymer electrolyte so
5#
發(fā)表于 2025-3-22 10:01:27 | 只看該作者
Water Content Estimation of the PEM Fuel Cell,yzed yet. The measured AC impedance makes water content estimation of a fuel cell available and the estimated water content contributes to water management strategy of the fuel cell system so its accuracy must be guaranteed to improve precision of the estimation.
6#
發(fā)表于 2025-3-22 15:44:32 | 只看該作者
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發(fā)表于 2025-3-23 03:49:12 | 只看該作者
Book 2022nnection between polarization curve and equivalent circuit model proves importance of MEA and its feasibility to study water content. Optimizing structure of MEA realizes the internal water content recirculation of a fuel cell and improves its performance under middle or lower current density. The i
10#
發(fā)表于 2025-3-23 08:23:33 | 只看該作者
Modeling of Water Content in MEA for the PEM Fuel Cell,formed on the other side of the MEA. The water content in the MEA dominates the conductivity of the proton, particularly in the polymer electrolyte solution, and its distribution through MEA is affected by the electro-osmotic drag effect and the back diffusion due to the gradient of local water content.
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