A Model for PEM Fuel Cell Impedance: Oxygen Flow in the Channel Triggers Spatial and Frequency Oscillations of the Local Impedance

2015 ◽  
Vol 162 (9) ◽  
pp. F1068-F1077 ◽  
Author(s):  
Andrei Kulikovsky ◽  
Olga Shamardina
Keyword(s):  
Fuel Cell ◽  
Pem Fuel Cell ◽  
Oxygen Flow ◽  
Cell Impedance

scholarly journals Correction: Nafion film transport properties in a low-Pt PEM fuel cell: impedance spectroscopy study

RSC Advances ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 6764-6765
Author(s):  
Tatyana Reshetenko ◽  
Andrei Kulikovsky
Keyword(s):  
Fuel Cell ◽  
Impedance Spectroscopy ◽  
Transport Properties ◽  
Pem Fuel Cell ◽  
Spectroscopy Study ◽  
Cell Impedance ◽  
Impedance Spectroscopy Study ◽  
Nafion Film

Correction for ‘Nafion film transport properties in a low-Pt PEM fuel cell: impedance spectroscopy study’ by Tatyana Reshetenko et al., RSC Adv., 2019, 9, 38797–38806, DOI: 10.1039/C9RA07794D.

PEM Fuel Cell Impedance at Open Circuit

2016 ◽  
Vol 163 (5) ◽  
pp. F319-F326 ◽  
Author(s):  
A. A. Kulikovsky
Keyword(s):  
Fuel Cell ◽  
Pem Fuel Cell ◽  
Open Circuit ◽  
Cell Impedance

scholarly journals Simulation of Fuzzy Control of Oxygen Flow in PEM Fuel Cells

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2372 ◽  
Author(s):  
Adam Polak
Keyword(s):  
Fuel Cell ◽  
Fuzzy Control ◽  
Control Algorithm ◽  
Pem Fuel Cell ◽  
Cell System ◽  
Oxygen Flow ◽  
Fuel Cell System ◽  
Oxygen Utilization ◽  
Fuel Cell Stack ◽  
Voltage Variation

This paper presents an alternative approach to the flow control of an oxidizer in a proton exchange membrane (PEM) fuel cell system in which pure oxygen is the gas supplied to the cathode channel of the stack. The proposed oxygen flow control is implemented based on information about the current drawn from the fuel cell stack and the voltage variation in the stack. This information and a fuzzy-logic-based control algorithm are used to increase oxygen utilization in a PEM fuel cell system without a recirculation system in relation to the control, in which the oxygen flow rate is determined only in proportion to the current drawn from the stack. To verify the validity of the adopted assumptions, simulation tests of the proposed fuzzy control algorithm were conducted, for which parameters were adopted arbitrarily and determined with help of genetic algorithms. For simulation research, the proposed empirical mathematical model was used, which describes the mathematical relationship between voltage variation in the stack and the stoichiometry of oxygen flow through the cathode of a fuel cell stack. The simulation results confirm that the proposed control method leads to an increase in the oxygen utilization in the system without oxygen recirculation compared to an open system with cathode stoichiometry set to a constant level.

An Efficient Approximation Method for an Individual Fuel Cell Impedance Characterization

2010 ◽  
Author(s):  
Taehee Han ◽  
Tessa A. Haagenson ◽  
Hossein Salehfar ◽  
Samir Dahal ◽  
Mike D. Mann
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Individual Cell ◽  
Cell Voltage ◽  
Pem Fuel Cell ◽  
Proton Exchange ◽  
Operating Conditions ◽  
Experimental Result ◽  
Pure Hydrogen ◽  
Cell Impedance

In this study, an efficient method of approximating individual fuel cell impedances in a stack is proposed and experimentally verified. Two different proton exchange membrane (PEM) fuel cell stacks (600 W with 24 cells and 1.2 kW with 47 cells) were used to develop and verify the method. Both PEM fuel cell stacks were operated using room air and pure hydrogen (99.999%). Impedance and current - voltage (I-V) data were collected for stack and individual cell levels under various operating conditions. The experimental result shows that the individual cell impedance is directly proportional to the corresponding cell voltage. Therefore individual cell impedance can be accurately estimated by performing only stack impedance and individual cell voltage measurements.

A simple transient model for a high temperature PEM fuel cell impedance

2014 ◽  
Vol 39 (5) ◽  
pp. 2224-2235 ◽  
Author(s):  
O. Shamardina ◽  
M.S. Kondratenko ◽  
A.V. Chertovich ◽  
A.A. Kulikovsky
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Pem Fuel Cell ◽  
Transient Model ◽  
Cell Impedance ◽  
High Temperature Pem

scholarly journals Nafion film transport properties in a low-Pt PEM fuel cell: impedance spectroscopy study

RSC Advances ◽  
2019 ◽  
Vol 9 (66) ◽  
pp. 38797-38806 ◽  
Author(s):  
Tatyana Reshetenko ◽  
Andrei Kulikovsky
Keyword(s):  
Fuel Cell ◽  
Impedance Spectroscopy ◽  
Transport Properties ◽  
Oxygen Transport ◽  
Pem Fuel Cell ◽  
Spectroscopy Study ◽  
Cell Impedance ◽  
Impedance Spectroscopy Study ◽  
Nafion Film ◽  
Pt Cell

A model for PEM fuel cell impedance taking into account oxygen transport through the Nafion film covering Pt/C aggolmerates is developed and used for fitting experimental spectra of a low-Pt cell.

Sign in / Sign up

Export Citation Format

Share Document