Results 21 to 30 of about 2,978 (240)

Simplified mathematical model of proton exchange membrane fuel cell based on horizon fuel cell stack

Journal of Modern Power Systems and Clean Energy, 2016
This paper presents a simplified zero-dimensional mathematical model for a self-humidifying proton exchange membrane (PEM) fuel cell stack of 1 kW. The model incorporates major electric and thermodynamic variables and parameters involved in the operation
Ibrahim M. M. Saleh, Rashid Ali, Hongwei Zhang   +2 more
doaj   +1 more source

A Review of physics-based and data-driven models for real-time control of polymer electrolyte membrane fuel cells

Energy and AI, 2021
The real-time model-based control of polymer electrolyte membrane (PEM) fuel cells requires a computationally efficient and sufficiently accurate model to predict the transient and long-term performance under various operational conditions, involving the
Jian Zhao, Xianguo Li, Chris Shum, John McPhee   +3 more
doaj   +1 more source

Modelling and evaluation of PEM hydrogen technologies for frequency ancillary services in future multi-energy sustainable power systems

Heliyon, 2019
This paper examines the prospect of PEM (Proton Exchange Membrane) electrolyzers and fuel cells to partake in European electrical ancillary services markets.
Feras Alshehri, Víctor García Suárez, José L. Rueda Torres, Arcadio Perilla, M.A.M.M. van der Meijden   +4 more
doaj   +1 more source

Simulation study for 3D dynamic characteristics of voltage losses in PEM fuel cell

Cumhuriyet Science Journal, 2021
Fuel cells, providing an advanced alternative energy source, are devices that can convert chemical energy into electrical energy. Modeling of a fuel cell provides improvements to the design of the fuel cells as well as providing cheaper, better and more ...
Abdurrahman Baytar, Deniz Sunar Çerçi, Salim Çerçi   +2 more
doaj   +1 more source

Acid Site Design for Low Hydration Proton Exchange Membranes

Advanced Functional Materials, EarlyView.
α‐CF2 substitution adjacent to sulfonic acid increases acid strength and enables efficient proton transport under low hydration conditions. This molecular design reduces the dependence of hydrocarbon proton exchange membranes on excessive water uptake, addressing a key limitation of conventional hydrocarbon PEMs while maintaining favorable conductivity
Ajay Kumar, Lorena Alzate‐Vargas, Mayra Rodriguez‐Pena, Douglas I. Kushner, Marina Pacheco, Panagiotis Bexis, Ahmet Kusoglu, Siddharth Komini Babu, Edward F. Holby, Jacob S. Spendelow, Eun Joo S. Park   +10 more
wiley   +1 more source

Experimental and Numerical Study on the Cold Start Performance of a Single PEM Fuel Cell

Advances in Mechanical Engineering, 2010
A combined experimental and analytical investigation of single proton exchange membrane (PEM) fuel cells, during cold start, has been conducted. The temperature influence on the performance of a single PEM fuel cell and the cold start failure of the PEM ...
Calvin H. Li, G. P. Peterson
doaj   +1 more source

Modular PEM Fuel Cell SCADA & Simulator System

Resources, 2015
The paper presents a Supervision, Control, Data Acquisition and Simulation (SCADA & Simulator) system that allows for real-time training in the actual operation of a modular PEM fuel cell system.
Francisca Segura, José Manuel Andújar
doaj   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

Advanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao, Jiaojiao Zhang, Shideng Yuan, Xinmeng Yu, Keming Wan, Xiaoguang Duan, Zhining Wang   +6 more
wiley   +1 more source

A review of portability of fault diagnosis methods from PEM fuel cells to PEM water electrolyzers

Discover Applied Sciences
With the global push for clean energy and carbon neutrality, proton exchange membrane (PEM) fuel cells and PEM electrolyzers are becoming essential technologies for sustainable energy systems.
Ruyi Wang, Jiangong Zhu, Haoyu Zhang, Chao Wang, Xiaoping Wu, Ming Wu, Jianqiang Xu, Hao Yuan, Wei Liu, Haifeng Dai, Xuezhe Wei   +10 more
doaj   +1 more source

2D Co‐Assembly of Solid Acids Enables Stable Superprotonic Conduction Above 260°C

Advanced Functional Materials, EarlyView.
A two‐dimensional co‐assembly strategy integrates antimony phosphate and phosphotungstic acid nanosheets into free‐standing inorganic lamellar membranes with confined acid–acid interfaces. The resulting interfacial hydrogen‐bond network enables anhydrous proton conductivity exceeding 0.1 S cm−1 at 260°C and supports stable high‐temperature fuel‐cell ...
Qiuning Li, Kaiqiang He, Dehua Dong, Fanmengjing Wang, Xiangcheng Liu, Zhikao Li, Jacek J. Jasieniak, Paul A. Webley, Huanting Wang   +8 more
wiley   +1 more source